To see the other types of publications on this topic, follow the link: GT - power engine.
Journal articles on the topic 'GT - power engine'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'GT - power engine.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Prasad, N. S., N. Ganesh, and A. Kumarasamy. "Technologies for High Power Density Diesel Engines." Defence Science Journal 67, no. 4 (2017): 370. http://dx.doi.org/10.14429/dsj.67.11537.
Full textAbstract:
<p class="p1">The engines used in armoured fighting vehicles have to be compact, light in weight, efficient and reliable. In order to achieve a compact engine design, a complete understanding of all the factors affecting the engine performance is needed. However, it is important to note that the performance of the engine cannot be compromised in the pursuit of compactness. The aim of this paper is to classify systematically various broad areas affecting the engine’s power to weight and power to volume ratio and discuss respective current technologies available. This paper explores the possibility of size and weight reduction and efficiency enhancement of diesel engines by the use of various methods like engine friction reduction, better thermal management, high injection pressure, and turbocharging. Achieving high engine speeds and high BMEP will be the means of achieving high power density. The effects of engine configuration and technologies on compactness are also discussed. Finally, the configuration of a new engine and its design aspects, incorporating all the aforementioned concepts is discussed</p>
2
Permana, Ade Indra. "Performance Analysis of Diesel Engine Simulation Into CNG Engine." AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin 8, no. 2 (2022): 110. http://dx.doi.org/10.32832/ame.v8i2.6944.
Full textAbstract:
<pre><em>The fundamental problem in meeting fuel consumption for the operation of diesel engines is in terms of costs and ensuring the availability of the fuel. So that the idea of using alternative fuels other than diesel fuel arises. And the recommendation is gas fuel (compressed natural gas) for several reasons including cheaper prices and Indonesia has abundant natural gas reserves. Because the properties of CNG and diesel oil are different, it is necessary to modify the diesel engine before being able to use alternative gas fuels. And in this journal, what is analyzed is the performance of diesel engines and diesel engines that have been modified into CNG engines connected to RPM. The analyzed performance includes brake power, brake torque, fuel consumption, and volumetric efficiency. The analysis process is carried out through a simulation using the GT-Power software. From the simulation, it is known that the use of CNG as a fuel reduces exhaust emissions even though it reduces engine performance in terms of power, torque, BMEP. And tends to increase fuel consumption.</em><em></em></pre>
3
Khanyi, Nhlanhla, Freddie Liswaniso Inambao, and Riaan Stopforth. "A Comprehensive Review of the GT-POWER for Modelling Diesel Engines." Energies 18, no. 8 (2025): 1880. https://doi.org/10.3390/en18081880.
Full textAbstract:
The increasing demand for efficient and environmentally friendly diesel engines necessitates advanced simulation tools, with Gamma Technologies’ GT-POWER emerging as a leading software suite for this purpose. This review paper examines the capabilities of GT-POWER for modelling diesel engines, exploring its fundamental principles, user interface, modelling techniques, and simulation capabilities, alongside comparisons with other formidable simulation tools. Moreover, various case studies from the literature are presented to illustrate its application. While there are some shortfalls within the context of GT-POWER, such as the need for further exploration of underutilized areas, the current focus on primarily 1D and multi-zone modelling requires expansion. Coupling GT-POWER with other simulation software for multiphysics analyses—such as CFD for combustion, structural analysis for component stress, fluid flow, and heat transfer—offers significant potential; however, this integration remains largely unexploited. Despite its limitations, the results consistently reveal the software’s versatility in optimizing engine performance across diverse applications, including component design, alternative fuel evaluations, and integration with various technologies such as MATLAB/Simulink, Artificial Neural Networks, and Python. The consistent findings across multiple studies further confirm GT-POWER’s effectiveness as a leading simulation tool for advancing diesel engine technology. Ultimately, this study bridges the gap between theoretical understanding and practical application, making it a valuable resource for researchers and engineers in the field of internal combustion engine optimization.
4
Okumuş, Fatih, Araks Ekmekçioğlu, and Selin Soner Kara. "Modelling Ships Main and Auxiliary Engine Powers with Regression-Based Machine Learning Algorithms." Polish Maritime Research 28, no. 1 (2021): 83–96. http://dx.doi.org/10.2478/pomr-2021-0008.
Full textAbstract:
Abstract Based on data from seven different ship types, this paper provides mathematical relationships that allow us to estimate the main and auxiliary engine power of new ships. With these mathematical relationships we can estimate the power of the engine based on the ship’s length (L), gross tonnage (GT) and age. We developed these approaches using simple linear regression, polynomial regression, K-nearest neighbours (KNN) regression and gradient boosting machine (GBM) regression algorithms. The relationships presented here have a practical application: during the pre-parametric design of new ships, our mathematical relationships can be used to estimate the power of the engines so that more environmentally friendly ships may be built. In addition, with the machine learning methodology, the prediction of the main engine (ME) and auxiliary engine (AE) powers used in the numerical calculation of ship-based emissions provides data for researchers working on emission calculations. We conclude that the GBM regression algorithm provides more accurate solutions to estimate the main and auxiliary engine power of a ship than other algorithms used in the study.
5
Anugrah, Rinasa Agistya, Andika Wisnujati, and Fajar Anggara. "Delta EC Simulation on Influence of Resonator Length in Close-Open Standing Wave Thermoacoustic Engine." Jurnal Engine: Energi, Manufaktur, dan Material 7, no. 2 (2023): 01. http://dx.doi.org/10.30588/jeemm.v7i2.1501.
Full textAbstract:
<p class="Abstract"><em><span lang="EN-US">Many applications of thermoacoustic engines in engineering. With its pressure of it, the energy can be harvested and can be converted to many other needs of energies like electrical energy. Energy in thermal form is converted to become acoustic energy and subsequently used to activate a bidirectional turbine. The resonator is very influential toward the power of the thermoacoustic engines. Simulation study with Delta EC fit to make predictions acoustic power as representative performance in thermoacoustic engine with close-open type and standing wave of oscillation. In this study, the material of the resonator is made from a stainless-steel duct with a diameter size of 50.8 mm with three variations of the length. The Standing-Wave Thermoacoustic Engine (SWTE) generates acoustic energy from a temperature gradient of 315 – 993 K. </span></em><em><span lang="IN">In this simulation, Acoustic Power decreased when the resonator length was extended. The shortest resonator had an acoustic power of 50.4 W, and the longest resonator had an acoustic power of 35.7 W.</span></em></p>
6
Suharyanto, Suharyanto, Catur Adi Pramono, Fajar Hermawan, and Mohamad Adha Akbar. "Analysis of the Ratio Between Gross Tonnage (GT) and Engine Power (HP) on Mini Purse Seine Vessels at the Coastal Fishing Port (PPP) Larangan, Tegal Regency, Central Java." Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan 6, no. 2 (2024): 220–30. https://doi.org/10.47685/barakuda45.v6i2.526.
Full textAbstract:
This research was conducted at the Larangan Coastal Fishing Port (PPP) on 15-17 November 2022 and 13-14 October 2023. The research focused on mini purse seine used to catch anchovy. The research method used was survey method and data tracking of vessels and fishing gear. Samples were selected from 50 mini purse seine vessels with brand engines: Mitsubishi, Dongfeng, Tianli, Jiandong, Yanmar, Changfa, Hiundai, JF, DH, and Inda. The engines were dominated by Mitsubishi and Dangfeng, at 36% each. Then the two groups of ships with different engine brands were determined the Gross Tonage and Hourse Power (GT/HP) ratio value of each ship. The ratio value of Mitsubishi engine brand is 0.03-0.11 while that of Dongfeng brand is 0.07-0.30. The mode of GT/HP ratio value of Mitsubishi brand is 0.10 at 33.3% and Dongfeng brand is 0.15 and 0.20 at 16.7% respectively. The average GT/HP ratio value of the Mitsubishi brand is 0.0733 and the Dongfeng brand is 0.1539. The results of previous studies range the value of the GT / HP ratio from 0.11 to 0.28. Both in terms of the mode and the average value of the two engine brands, it is found that the Mitsubishi brand GT / HP ratio value with a mode of 0.10 and an average of 0.0733 < 0.11-0.28. While the Dongfeng brand mode 0.15 and 0.20 and an average of 0.1539 are in the range of 0.11-0.28. Because the GT / HP ratio value is directly proportional to GT and inversely proportional to HP engine power, the Mitsubishi brand tends to use a larger HP engine power. So that the operational cost is higher and vice versa for the Dongfeng brand the operational cost is lower or more economical. In choosing the engine brand, it was found that mini purse seine fishermen in Prohibition used Mitsubishi brand engines for the reasons of ‘strong power’ and ‘rarely broken’ at 35% each. While the Dongfeng brand chose the reason ‘The price is cheap’, ‘easy spare parts’ and ‘rarely broken’ each by 26%.
7
Gowdal, Pavan J., R. Rakshith, S. Akhilesh, Manjunath ., and Ananth S. Iyengar. "An Experimental Investigation Of Central Injection Based Hydrogen Dual Fuel Spark Ignition Engine." Journal of Mines, Metals and Fuels 70, no. 3A (2022): 148. http://dx.doi.org/10.18311/jmmf/2022/30685.
Full textAbstract:
Automobile industry is steadily moving away from traditional fossil fuels towards more sustainable and eco-friendly alternatives. Alternative to traditional fuels include hydrogen, which has the potential to satisfy the current energy demand in automotive field. However, design and fabrication of engines using pure hydrogen has many technological challenges. Combination of traditional fuels and hydrogen can reduce engine emissions including hydrocarbon (HC), carbon monoxide (CO), significant decrease in the carbon di oxide and methane. Additionally, the dual fuel engines provide the necessary savings with higher specific fuel consumption. However, dual fuel engines have a number of disadvantages such as pre-ignition, increase in NO<sub>x</sub> emissions, lower brake power and reduced brake thermal efficiency. In the present study, a single cylinder 110 cc spark ignition engine is procured and is retrofitted to admit hydrogen gas at specified pressures. The engine performance is measured using a mechanical load specifically designed for the engine. Brake power, torque, brake thermal efficiency, brake specific fuel consumption and other performance parameters are measured. The results from the engine is compared to the MATLAB model to study the inner working of the dual fuel engine to understand the pre-ignition characteristics. The results follow similar trends presented in the literature, the deviations in our study can be attributed to the type of engine selected and experimental errors. The highest increase in brake thermal efficiency and brake specific fuel consumption is 15.6 % and 22.5% respectively at 3500 rpm. The CO, and CO<sub>2</sub> emissions have reduced by 86%, 26% respectively and increase of 16% in NO<sub>x</sub> is observed due to increase in combustion temperature.
8
Ismail, Muhammad Yusri, Ahmad Jais Alimin, and Shahrul Azmir Osman. "Mono-Gas Fuelled Engine Performance and Emissions Simulation Using GT-Power." Applied Mechanics and Materials 465-466 (December 2013): 125–29. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.125.
Full textAbstract:
The scarcity of oil resources and the rise of crude oil price had driven the whole world to seek for an alternative fuel for automotive industry. One of the prospective alternative fuels for compression ignition (C.I.) engine is compressed natural gas (CNG). In order to operate CNG in a C.I. engine as mono-gas engine (RE), several modifications are required. The modifications that involves are compression ratio, fuel injection type, addition of spark plug and fuel itself. So as to reduce the time in preparing the experimental test bed and high cost analytical study a 1-dimensional simulation software GT-Power was introduce. The GT-Power simulation model for a 4 cylinder medium duty C.I. engine (DE) and RE has been built to study the effects of conversion process to the performance and emissions of the engine at various operational conditions: low, medium and high load conditions. As compared with DE model, results from RE model showed loss in brake power (BP) and brake thermal efficiency (BTE) by 37.3% and 19% respectively. Meanwhile, for brake specific air consumption (BSAC) RE predicted to undergo an average of 19412.6 g/kW-h and increment in volumetric efficiency by percentage of difference 22%. In other side, oxides of nitrogen (NOx) RE engine model predicted reduction of 48.1% (engine mode 1-9) and increased in hydrocarbons (HC) by 90.3.
9
Alfarawi, Suliman, Raya AL-Dadah, and Saad Mahmoud. "Performance evaluation of gamma-type Stirling engine using combined Schmidt and mechanical loss model." European Journal of Sustainable Development Research 8, no. 1 (2024): em0240. http://dx.doi.org/10.29333/ejosdr/13888.
Full textAbstract:
This paper focuses on the study of gamma-type Stirling engine prototype using a combined Schmidt closed-form and mechanical loss analysis. Not restricted to optimizing the indicated power as classic Schmidt theory is set to, this analysis allows to maximize the shaft power due to the mechanical loss in power transmission. For this purpose, MATLAB code was developed to calculate the indicated and the shaft powers of the engine at different operating parameters. The results showed that shaft power peaks at swept volume ratios smaller than those of indicated power at different values of mechanism effectiveness. Within the range of engine mechanism effectiveness typically between 0.7 and 0.9, it was found that maximum shaft power for this particular engine can be achieved at different optimum values of swept volume ratio between 0.75 and 0.95 and phase angle between 80° and 90°. However, an optimum swept volume ratio was found to be <i>k</i>=0.55 of the same engine size for different scenarios of operation. Also, the developed model can be used as a design tool in the preliminary stage to find the optimum geometry of the engine. The new engine design parameters including the stroke, the crank radius and power piston bore, and engine alteration were presented.
10
Song, Songsong, and Hongguang Zhang. "Performance Study for Miller Cycle Natural Gas Engine Based on GT-Power." Journal of Clean Energy Technologies 3, no. 5 (2015): 351–55. http://dx.doi.org/10.7763/jocet.2015.v3.222.
Full text
11
Li, Yue, Zhi Ning, Ming Lü, Xin Zhi, and Xian Luo. "Simulation study on effect of late-intake-valve-closing Atkinson cycle on the performance of a direct injection engine based on fuel economy." E3S Web of Conferences 260 (2021): 01017. http://dx.doi.org/10.1051/e3sconf/202126001017.
Full textAbstract:
Given the wide application of hybrid engines, how to improve hybrid engine fuel economy is being more and more studied, and using the Atkinson cycle to improve fuel economy is considered effective. In this study, the in-cylinder direct injection engine model was established with the data obtained from a benchmarking test using the GT-POWER simulation software. The working process of this engine was simulated after using Atkinson cycle. This simulation primarily focused on the research of the impact on engine fuel economy with different late intake valve closing strategies. The simulation results were calculated under the partial load conditions which are typically used in hybrid engines. The results indicated that engine fuel economy improved and fuel consumption decreased by using the Atkinson cycle. However, the Atkinson cycle would cause a decrease in power.
12
Jiang, Feng, Wentong Cao, Xueyou Tan, Jie Hu, Junming Zhou, and Zedan Tan. "Optimization Analysis of Locomotive Diesel Engine Intake System Based on Matlab-Simulink and GT-Power." Processes 10, no. 1 (2022): 157. http://dx.doi.org/10.3390/pr10010157.
Full textAbstract:
In this paper, based on the coupling calculation of Simulink software and GT-Power software, an Optimizer model method was proposed for a 16V265H diesel engine to study the effects of different ratios of biodiesel (B0, B10, and B20) on the performance of a 16V265H diesel engine at 1000 rpm and 75% load. Firstly, the four parameters of diesel engine power, BSFC, soot emission, and NOx emission were taken as the result variables of the optimization model. Taking the intake and exhaust timing of the diesel engine as the independent variable of the optimization model, the maximum power, minimum BSFC, and minimum diesel engine emission were studied and analyzed. Finally, the performance parameters were comprehensively analyzed to determine the best intake and exhaust valve timing. Moreover, based on the model optimization, the diesel engine’s BSFC and power performance were compared, and the optimal intake timing scheme for the diesel engine with different biodiesel ratios at 75% operating conditions was obtained. The results showed that the maximum power, optimum BSFC, and minimum emissions of the 16V265H diesel engine with different ratios of biodiesel and different intake valve timing angles were also different. Under 75% load conditions, the BSFC reduction rate was up to 6.32%, and the power increase rate was up to 5.87%. In addition, by optimizing the model with B10 biodiesel and the intake valve timing close to 202°CA and the exhaust valve timing close to 98°CA, the diesel engine had the lowest NOx emission; with B10 biodiesel and the intake timing at 180°CA, the diesel engine had the lowest BSFC; and with B10 biodiesel and the intake valve timing close to 179.5°CA, the diesel engine had the maximum power. In conclusion, the diesel engine is best with B10 biodiesel. This research method can provide a reference for implementing variable intake system technology for the 16V265H diesel engine.
13
MITIANIEC, Władyslaw, and Konrad BUCZEK. "Modification of four-stroke engine for operation in two-stroke cycle for automotive application." Combustion Engines 162, no. 3 (2015): 3–12. http://dx.doi.org/10.19206/ce-116860.
Full textAbstract:
The main disadvantages of two-stroke engines such a big fuel consumption and big emission of hydrocarbons or carbon monoxide can be reduced by new proposal of design of two stroke engine based on four stroke engines. The paper describes the operation of high supercharged spark ignition overhead poppet valve two-stroke engine, which enables to achieve higher total efficiency and exhaust gas emission comparable to four-stroke engines. The work of such engines is possible by proper choice of valve timings, geometrical parameters of inlet and outlet ducts and charge pressure. The engine has to be equipped with direct fuel injection system enabling lower emission of pollutants. The work is based on theoretical considerations and engine parameters are determined on the simulation process by use GT-Power program and CFD program for different engine configurations. The initial results included in the paper show influence of valve timing on engine work parameters and predicted exhaust gas emission. The simulation results show that the nitrogen oxides are considerably reduced in comparison to four-stroke engines because of higher internal exhaust gas recirculation. The innovation of this proposal is applying of variable valve timing with turbocharging system in the two-stroke engine and obtaining a significant downsizing effect. The conclusions shows the possibilities of applying two-stroke poppet valve engine as a power unit for transportation means with higher total efficiency than traditional engines with possible change of engine operation in two modes: two- and four stroke cycles. The main disadvantages of two-stroke engines such a big fuel consumption and big emission of hydrocarbons or carbon monoxide can be reduced by new proposal of design of two stroke engine based on four stroke engines. The paper describes the operation of high supercharged spark ignition overhead poppet valve two-stroke engine, which enables to achieve higher total efficiency and exhaust gas emission comparable to four-stroke engines. The work of such engines is possible by proper choice of valve timings, geometrical parameters of inlet and outlet ducts and charge pressure. The engine has to be equipped with direct fuel injection system enabling lower emission of pollutants. The work is based on theoretical considerations and engine parameters are determined on the simulation process by use GT-Power program and CFD program for different engine configurations. The initial results included in the paper show influence of valve timing on engine work parameters and predicted exhaust gas emission. The simulation results show that the nitrogen oxides are considerably reduced in comparison to four-stroke engines because of higher internal exhaust gas recirculation. The innovation of this proposal is applying of variable valve timing with turbocharging system in the two-stroke engine and obtaining a significant downsizing effect. The conclusions shows the possibilities of applying two-stroke poppet valve engine as a power unit for transportation means with higher total efficiency than traditional engines with possible change of engine operation in two modes: two- and four stroke cycles.
14
Minh, Thang Nguyen, Hieu Pham Minh, and Vinh Nguyen Duy. "A review of internal combustion engines powered by renewable energy based on ethanol fuel and HCCI technology." AIMS Energy 10, no. 5 (2022): 1005–25. http://dx.doi.org/10.3934/energy.20220046.
Full textAbstract:
<abstract> <p>In general, as compared to conventional combustion engines, the homogeneous charge compression ignition (HCCI) engine offers better fuel efficiency, NOx, and particulate matter emissions. The HCCI engine, on the other hand, is not connected to the spark plugs or the fuel injection system. This implies that the auto-ignition time and following combustion phase of the HCCI engine are not controlled directly. The HCCI engine will be confined to a short working range due to the cold start, high-pressure rate, combustion noise, and even knocking combustion. Biofuel innovation, such as ethanol-powered HCCI engines, has a lot of promise in today's car industry. As a result, efforts must be made to improve the distinctive characteristics of the engine by turning the engine settings to different ethanol mixtures. This study examines the aspects of ethanol-fueled HCCI engines utilizing homogenous charge preparation procedures. In addition, comparing HCCI engines to other advanced combustion engines revealed their increased importance and prospective consequences. Furthermore, the challenges of transitioning from conventional to HCCI engines are examined, along with potential answers for future upgrade approaches and control tactics.</p> </abstract>
15
Minh, Thang Nguyen, Hieu Pham Minh, and Vinh Nguyen Duy. "A review of internal combustion engines powered by renewable energy based on ethanol fuel and HCCI technology." AIMS Energy 10, no. 5 (2022): 1005–25. http://dx.doi.org/10.3934/energy.2022046.
Full textAbstract:
<abstract> <p>In general, as compared to conventional combustion engines, the homogeneous charge compression ignition (HCCI) engine offers better fuel efficiency, NOx, and particulate matter emissions. The HCCI engine, on the other hand, is not connected to the spark plugs or the fuel injection system. This implies that the auto-ignition time and following combustion phase of the HCCI engine are not controlled directly. The HCCI engine will be confined to a short working range due to the cold start, high-pressure rate, combustion noise, and even knocking combustion. Biofuel innovation, such as ethanol-powered HCCI engines, has a lot of promise in today's car industry. As a result, efforts must be made to improve the distinctive characteristics of the engine by turning the engine settings to different ethanol mixtures. This study examines the aspects of ethanol-fueled HCCI engines utilizing homogenous charge preparation procedures. In addition, comparing HCCI engines to other advanced combustion engines revealed their increased importance and prospective consequences. Furthermore, the challenges of transitioning from conventional to HCCI engines are examined, along with potential answers for future upgrade approaches and control tactics.</p> </abstract>
16
Benallal, Abdellah, Mohamed Yasser Hayyani, Ghazi Mhadhbi, and Adrian Ilinca. "Numerical model of variable valve timing distribution for a supercharged diesel engine." International Journal of Applied Power Engineering (IJAPE) 13, no. 1 (2024): 152. http://dx.doi.org/10.11591/ijape.v13.i1.pp152-164.
Full textAbstract:
Recently, there's been a strong drive to improve performance of diesel engines while reducing their greenhouse gases emissions. Techniques like exhaust gas recirculation, turbocharging, and variable valve timing have become widespread. The last technique fine-tunes valve operation based on engine speed, which optimize efficiency and power output while saving fuel. This study zeroes in on a specific 4-cylinder, 4-stroke diesel engine of 1.56-liter, GT-Power software is employed to examine a supercharged version and implementing diverse valve lift techniques. The findings are revealing a substantial 30% increase in power output. At 1000 rpm, power rises from 15.1 kW for the standard engine to 19.72 kW for the modified version. For higher engine speeds, the improvements become even more pronounced, reaching a 66% boost compared to the standard configuration. Furthermore, the newly configured engine showcases an impressive 13% decrease in fuel-specific consumption at elevated engine speeds, contributing to enhanced technical performance and fuel efficiency. The numerical model developed in this study holds the potential to aid in the design of novel diesel engines equipped with variable valve timing systems. To lend further support to these findings, experimental validation is recommended.
17
Benallal, Abdellah, Mohamed Yasser Hayyani, Ghazi Mhadhbi, and Adrian Ilinca. "Numerical model of variable valve timing distribution for a supercharged diesel engine." International Journal of Applied Power Engineering (IJAPE) 13, no. 1 (2023): 152–64. https://doi.org/10.11591/ijape.v13.i1.pp152-164.
Full textAbstract:
Recently, there's been a strong drive to improve performance of diesel engines while reducing their greenhouse gases emissions. Techniques like exhaust gas recirculation, turbocharging, and variable valve timing have become widespread. The last technique fine-tunes valve operation based on engine speed, which optimize efficiency and power output while saving fuel. This study zeroes in on a specific 4-cylinder, 4-stroke diesel engine of 1.56-liter, GT-Power software is employed to examine a supercharged version and implementing diverse valve lift techniques. The findings are revealing a substantial 30% increase in power output. At 1000 rpm, power rises from 15.1 kW for the standard engine to 19.72 kW for the modified version. For higher engine speeds, the improvements become even more pronounced, reaching a 66% boost compared to the standard configuration. Furthermore, the newly configured engine showcases an impressive 13% decrease in fuel-specific consumption at elevated engine speeds, contributing to enhanced technical performance and fuel efficiency. The numerical model developed in this study holds the potential to aid in the design of novel diesel engines equipped with variable valve timing systems. To lend further support to these findings, experimental validation is recommended.
18
MENACER, Brahim, Abdelkader SOUALMIA, Sunny NARAYAN, and Moaz AL-LEHAIBI. "Impact Analysis of the Key Engine Parameters on Piston Lubrication and Friction Performance in Diesel Engines Using GT-SUITE Program." Mechanics 30, no. 3 (2024): 236–43. http://dx.doi.org/10.5755/j02.mech.35251.
Full textAbstract:
In Compression ignition engines combustion occurs at higher temperatures that leads to a rapid rise in combustion pressure and amount of heat released. This may lead to lesser emissions during engine cycle. Moreover, occurrence of combustion takes place for a very small crank angles duration resulting in better thermal efficiency. On the other hand, the oil used for lubrication in IC engines is responsible for a significant amount of pollution and particles emitted into the environment. In order to comply with increasingly strict pollution standards, manufacturers make considerable efforts to minimize the impact of oil consumption on engine emissions. The purpose of this study is to develop a one dimensional numerical simulation method using GT-Suite software to assess how the engine speed and load affect the oil film thickness, frictional force, and power losses during the operating engine cycle. The results obtained in this simulation were validated using experimental data, and there is good agreement between the numerical and experimental results. It was found in this paper that the maximum friction power losses were found to be 1.6 kW at middle of strokes and the minimum Oil film thickness was obtained in range of 9-38 μm.
19
D., Y. Dasin, and Yahuza I. "Production and Characterization of Biodiesel Fuel Derived from Neem Azadirachta Indica Seed using Two Cylinder Diesel Engine Model." International Journal of Trend in Scientific Research and Development 3, no. 4 (2019): 761–66. https://doi.org/10.31142/ijtsrd23903.
Full textAbstract:
As the decreasing availability of the fossil fuel is rising day by day, the search for alternate fuel that can be used as a substitute to the conventional fuels is rising rapidly. A new type of biofuel, Neem oil biodiesel, is introduced in this work for the purpose of fuelling diesel engine. Neem oil was extracted from neem seed by solvent extraction method and biodiesel was produced by transesterification method. The percentage yield of Neem oil and biodiesel were found to be 40 and 75 respectively. The properties were simulated in a model produced using GT power suite. The engine speed was varied and engine performance such as brake power, brake specific fuel consumption, brake mean effective pressure and the emission of biodiesel and petroleum diesel at various speed were determined and compared. The results show the improve performance of biodiesel. The performance characteristics of an engine were studied with biodiesel and petro diesel. The brake power 31.25 kW, brake torque 102.8 N mare found higher at 3600 rpm case 1 and 1200 rpm case 4 respectively. In biodiesel, specific fuel consumption is found more than the petro diesel and the CO and CO2 emission were found lower in biodiesel than petro diesel. The biodiesel have shown better performance than the petro diesel. D. Y. Dasin | I. Yahuza "Production and Characterization of Biodiesel Fuel Derived from Neem (Azadirachta Indica) Seed using Two Cylinder Diesel Engine Model" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23903.pdf
20
Sun, Zuo Yu, Xiang Rong Li, Liang Ping Guo, and Xue Yan Zhang. "Research on the Multi-Parameters Matching Control of the Cooling System for the Diesel Engine on the Numerical Simulation Technology." Advanced Materials Research 383-390 (November 2011): 1423–30. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.1423.
Full textAbstract:
For the growing importance of future emission restrictions and the expanding requirement for a better fuel economy, the internal combustion engines are forced to be improved for the high strengthening direction. However, the heat loads of the engine is increasing according to the increasing of engine speed and power density, hence, the cooling system is faced to more challenge. For the cooling system is one of the key system which has more effect on the engine efficiency, fuel economy, and exhaust heats; optimize the matching control cooling system becomes one of the key technology to improve the engine performance. In this paper, several overall schemes of the cooling system are analyzed and discussed, and then one design scheme is determined to the optimal for the current diesel engine. A whole engine system is established by the software GT-Power, and the cooling system in the engine system is established by GT-Cool based on the above optimal scheme. During the simulation, the influence on the heat dissipating capability brought by the control parameters, injection advance angle, power, and torque are investigated. At last, the requirement of the heat released under full conditions is analyzed, and the relationship of the fuel consumption and the control parameters is investigated.
21
Sun, Zuo Yu, Xiang Rong Li, Liang Ping Guo, and Xue Yan Zhang. "Research on the Multi-Parameters Matching Control of the Cooling System for the Diesel Engine on the Numerical Simulation Technology." Advanced Materials Research 433-440 (January 2012): 2670–79. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.2670.
Full textAbstract:
For the growing importance of future emission restrictions and the expanding requirement for a better fuel economy, the internal combustion engines are forced to be improved for the high strengthening direction. However, the heat loads of the engine is increasing according to the increasing of engine speed and power density, hence, the cooling system is faced to more challenge. For the cooling system is one of the key system which has more effect on the engine efficiency, fuel economy, and exhaust heats; optimize the matching control cooling system becomes one of the key technology to improve the engine performance. In this paper, several overall schemes of the cooling system are analyzed and discussed, and then one design scheme is determined to the optimal for the current diesel engine. A whole engine system is established by the software GT-Power, and the cooling system in the engine system is established by GT-Cool based on the above optimal scheme. During the simulation, the influence on the heat dissipating capability brought by the control parameters, injection advance angle, power, and torque are investigated. At last, the requirement of the heat released under full conditions is analyzed, and the relationship of the fuel consumption and the control parameters is investigated.
22
Keshavarz, Mohammad, and Mehdi Keshavarz. "Optimization of Fuel Consumption of a SI Engine Using Variable Valve Timing and Variable Length Intake Manifold Techniques." Mapta Journal of Mechanical and Industrial Engineering (MJMIE) 2, no. 2 (2018): 1–12. http://dx.doi.org/10.33544/mjmie.v2i2.58.
Full textAbstract:
According to the world crisis about fuel consumption and environmental concerns regarding toxic emissions of internal combustion engines, the engines with higher efficiency and lower fuel consumption have been a topic of research in last decades. In this study, variable valve timing (VVT) and variable length intake manifold (VLIM) techniques are used to optimize the fuel consumption of an SI engine. At first, all components of engine are modeled in GT-POWER and a comparison with experimental results is performed to confirm the accuracy of the model. Then, the discrete-gird algorithm is employed to optimize the parameters in GT-POWER. The results obtained indicate that optimal valve timing and intake manifold length significantly reduces brake specific fuel consumption (BSFC).
23
Alimin, Ahmad Jais, Muhammad Yusri Ismail, and Shahrul Azmir Osman. "Predicting the Performance and Emissions Characteristics of a Medium Duty Engine Retrofitted with Compressed Natural Gas System Using 1-Dimensional Software." Applied Mechanics and Materials 699 (November 2014): 702–7. http://dx.doi.org/10.4028/www.scientific.net/amm.699.702.
Full textAbstract:
The rise of crude oil price and the implications of exhaust emissions to the environment from combustion application call for a new reliable alternative fuel. A potential alternative fuel for compression ignition (C.I.) engine is the compressed natural gas (CNG). For C.I. engines to operate using CNG, or to be converted as a retrofitted CNG engine, further modifications are required. Previous works reported loss in brake power (BP) and increase in hydrocarbon (HC) emission for C.I. engine retrofitted with CNG fuelling. Verification of performance characteristics for CNG retrofitted engine through experimental analysis requires high cost and is very time consuming. Thus, a 1-Dimensional simulation software, GT-Power, was introduced in this study to reduce the experimental process and setup. A 4-cylinder medium duty C.I. engine (DE) and CNG retrofitted engine (RE) GT-Power models were used in this simulation work over various operational conditions: low, medium and high load conditions. As compared with DE model, results from RE model showed that RE model achieved an average 4.9% improvement for brake specific fuel consumption (BSFC) and loss in BP by 37.3%. For nitrogen oxides (NOX) and carbon dioxides (CO2) RE model predicted reduction of 48.1% (engine mode 1-9) and 33.4% (all engine modes), respectively. Moreover, RE produced 72.4% more carbon monoxide (CO) and 90.3% more HC emission.
24
Alimin, Ahmad Jais, Muhammad Yusri Ismail, and Shahrul Azmir Osman. "Predicting the Performance and Emissions Characteristics of a Medium Duty Engine Retrofitted with Compressed Natural Gas System Using 1-Dimensional Software." Applied Mechanics and Materials 660 (October 2014): 468–73. http://dx.doi.org/10.4028/www.scientific.net/amm.660.468.
Full textAbstract:
The rise of crude oil price and the implications of exhaust emissions to the environment from combustion application call for a new reliable alternative fuel. A potential alternative fuel for compression ignition (C.I.) engine is the compressed natural gas (CNG). For C.I. engines to operate using CNG, or to be converted as a retrofitted CNG engine, further modifications are required. Previous works reported loss in brake power (BP) and increase in hydrocarbon (HC) emission for C.I. engine retrofitted with CNG fuelling. Verification of performance characteristics for CNG retrofitted engine through experimental analysis requires high cost and is very time consuming. Thus, a 1-Dimensional simulation software, GT-Power, was introduced in this study to reduce the experimental process and setup. A 4-cylinder medium duty C.I. engine (DE) and CNG retrofitted engine (RE) GT-Power models were used in this simulation work over various operational conditions: low, medium and high load conditions. As compared with DE model, results from RE model showed that RE model achieved an average 4.9% improvement for brake specific fuel consumption (BSFC) and loss in BP by 37.3%. For nitrogen oxides (NOX) and carbon dioxides (CO2) RE model predicted reduction of 48.1% (engine mode 1-9) and 33.4% (all engine modes), respectively. Moreover, RE produced 72.4% more carbon monoxide (CO) and 90.3% more HC emission.
25
Jiang, Feng, Minghai Li, Jiayan Wen, Zedan Tan, and Wenyun Zhou. "Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power." Mathematical Problems in Engineering 2021 (April 8, 2021): 1–17. http://dx.doi.org/10.1155/2021/6673612.
Full textAbstract:
In the work, the suitable volumetric efficiency is very important for the gasoline engine to achieve the aim of energy-saving and emission reduction. Thus, the intake system characteristics, such as intake manifold length, diameter, volumetric efficiency, and valve phase, should be investigated in detail. In order to investigate the performance optimization of the engine intake system, an optimization model of the engine intake system is developed by the GT-Power coupled with Matlab-Simulink and validated by the experimental results under the different conditions at full load. The engine power-, torque-, and brake-specific fuel consumption are defined as the result variables of the optimization model, and the length and diameter of the intake manifold are defined as the independent variables of the model. The results show that the length of intake manifold has little influence on the engine power and BSFC, and the length of intake manifold has a great impact on the performance index at high speed. In addition, the engine volumetric efficiency is the highest when the length of intake manifold is in the range of 240 and 250 mm. The engine BSFC improved by variable valve timing is significant compared with the original result. Finally, the improvement suggestions for the performance enhancement of the gasoline engine are proposed.
26
Almutairi, Hamad H., Abdulrahman S. Almutairi, Suleiman M. Suleiman, Abdulrahman H. Alenezi, Khalid A. Alkhulaifi, and Hamad M. Alhajeri. "Economic, Exergoeconomic and Exergoenvironmental Evaluation of Gas Cycle Power Plant Based on Different Compressor Configurations." Processes 11, no. 4 (2023): 1023. http://dx.doi.org/10.3390/pr11041023.
Full textAbstract:
The decision-making process behind the selection of a gas turbine engine (GT) is crucial and must be made in accordance with economic, environmental, and technical requirements. This paper presents the relevant economic, exergoeconomic and exergoenvironmental analyses for four GT engines with different compressor configurations. The GT engine configurations are identified according to the type of compressor: axial, axial-centrifugal, two-stage centrifugal, and centrifugal-centrifugal. The performances of the four GT engines were validated against manufacturer supplied data using specialized software. The economic analysis, a detailed life cycle costing considering the cost to be paid per unit net power obtained from the GT, and subsequent shortest payback period showed that the GT with centrifugal-centrifugal compressor was most economically feasible. This was followed, in order, by the GT-axial, GT-axial-centrifugal, and finally the GT-two-stage centrifugal configuration, where the cost of ownership for a 20 year plan ranges between 8000 USD/kW to about 12,000 USD/kW at different operational scenarios during the life cycle costing. Exergoeconomic assessment provided useful information to enhance the cost-effectiveness of all four systems by evaluating each component separately. The axial-centrifugal configuration registered the lowest CO2 emissions (about 0.7 kg/kWh); all environmental indicators confirmed it is the most environmentally friendly option.
27
Alrwashdeh, Saad S. "Investigation of the effect of the injection pressure on the direct-ignition diesel engine performance." AIMS Energy 10, no. 2 (2022): 340–55. http://dx.doi.org/10.3934/energy.2022018.
Full textAbstract:
<abstract> <p>Internal combustion engines (ICE) play a major role in converting the energy with its different types in order to benefit from it for various applications such as transportation, energy generation, and many others applications. Internal combustion engines use two main types of operation cycles, namely the Otto and Diesel cycles. Many development processes are carried out to improve the efficiency of the ICE nowadays such as working on the design of the combustion engine and the material selections and others. One of the main parameters which play an important role in improving the diesel engine is the fuel pressure. By increasing the fuel pressure injected into the engine, the efficiency, in consequence, will increase. This work investigates the injection pressure of the fuel (Diesel) and studies the effect of these changes on engine efficiency. It was found that the increase in injection pressure significantly affected the improvement in engine performance. Such improved engine subsystems will have a great impact on the energy extracted and used for various engineering applications.</p> </abstract>
28
Firdiansyah, Alfian, Nasrul Ilminnafik, Agus Triono, and Muh Nurkoyim Kustanto. "Effect of Biodiesel B100 and Ethanol Blends on the Performance of Small Diesel Engine." International Journal of Mechanical Engineering Technologies and Applications 2, no. 2 (2021): 101. http://dx.doi.org/10.21776/mechta.2021.002.02.3.
Full textAbstract:
<p class="02abstracttext"><span lang="IN">A small diesel engine is a machine that has high efficiency but causes a high level of pollution. The most widely used fuel so far is fossil energy which is unrenewable energy. The fruit of the Calophyllum inophyllum plant has great potential to be developed as alternative energy for small diesel engines. In this study, the test fuel used was D100, B100, E5, E10, and E15. The small engine diesel used TG-R180 Diesel with a compression ratio of 20:1 at engine turns 1500, 1800, 2100, and 2400 rpm, and the braking load at a constant prony disc brake is 1,5 kg/cm<sup>2</sup>. The result of the study using E10 fuel can improve engine performance and can reduce the opacity of the exhaust gas. The highest power in the D100 fuel at 2100 rpm is 8,06 PS. The highest thermal efficiency of E10 fuel is 50,29%. The use of Calophyllum inophyllum biodiesel (B100) can reduce exhaust gas opacity in small diesel engines when compared to the use of D100. E10 fuel has the lowest exhaust gas opacity rate of 4,1%.</span></p>
29
Yu, Miao, and Shou Li Yuan. "Simulation and Optimization of Muffler Based on GT-Power." Applied Mechanics and Materials 556-562 (May 2014): 1889–93. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1889.
Full textAbstract:
This paper with the provided conclusion of one muffler scheme and the experiment, use GT-Power software build muffler and the coupling model of engine to simulate its scheme and the characteristics of acoustic. Optimization scheme is put forward to increase the efficiency of the muffler and economical purpose.
30
Dong, Da Lu, Chang Pu Zhao, Xiao Zhan Li, Yun Yao Zhu, and Jun Zhang. "Simulation Study of the Impact of Two-Stage Turbocharged System on Diesel Engine." Applied Mechanics and Materials 170-173 (May 2012): 3555–59. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.3555.
Full textAbstract:
With the increasing strictness of emission regulations, development direction of future diesel engines is toward the high thermal efficiency and low emissions. Supercharging technology is an important means for improving output power of diesel engines. This paper deals with the study of the two-stage turbocharging system of the non-road diesel engine. Based on GT-Power software code, a digital model of 6112 diesel engine was established. The supercharged model was calibrated by using the original experimental data. Then, four types of digital models with different two-stage turbocharging systems were constructed. The best two-stage turbocharging system was determined through investigating the impacts of different options on the performance of diesel engines. It was indicated through the study that two-stage turbocharging system can substantially increase the air flowing into the cylinder which increases the potential of power density. At the same time HC and NOx emissions can reduce. Through this study, a theoretical basis and an important reference for adopting the two-stage turbocharging system of the 6112 diesel engine were provided.
31
Viswanath, Hari, A. Kumaraswamy, and P. Sivakumar. "Optimisation of Diesel Engine for Hybrid Military Tracked Vehicles using Matlab-Simulink." Defence Science Journal 67, no. 4 (2017): 360. http://dx.doi.org/10.14429/dsj.67.11490.
Full textAbstract:
<p class="Abstract">The demand in the technology requirements for diesel engines is growing keeping hybrid vehicles in mind. In future the diesel engine no longer drives the wheels directly; as a result the engine can be engaged at a limited number of operating points, thus, offering an opportunity to optimise the fuel efficiency and performance at those operating points. The extent to which this optimisation is possible is limited by practical considerations. Also if the positive and negative power peaks in vehicle during mobility (e.g. acceleration and regenerative braking respectively) can be accommodated by high-power batteries, then the size of the engine can be considerably reduced. The engine’s operating points depend on the power-control strategy. The consequences of modifications to these operating points will have an effect on performance and efficiency. As in series hybrid only a limited number of operating points are involved and dynamic performance requirements are not imposed on the diesel engine, significant improvements can be achieved by the optimisation of the diesel engine at these operating points. The feasibility of optimisation of the engine at these operating points can be done by modification on the injection systems, the valve timings and other such parameters. This kind of approach requires the use of complex and repeated experimental analysis of the engine which is costly, cumbersome and time consuming. An alternative to this kind of experimental approach is to develop a simulation model of the engine with the generator in Matlab- Simulink.</p>
32
Zahari, Faisal, Muhammad Murtadha Othman, Ismail Musirin, Amirul Asyraf Mohd Kamaruzaman, Nur Ashida Salim, and Bibi Norasiqin Sheikh Rahimullah. "Design of a Small Renewable Resource Model based on the Stirling Engine with Alpha and Beta Configurations." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 2 (2017): 360. http://dx.doi.org/10.11591/ijeecs.v8.i2.pp360-367.
Full textAbstract:
<p>This paper presents the conceptual design of Stirling engine based Alpha and Beta configurations. The performances of Stirling engine based Beta configuration will be expounded elaborately in the discussion. The Stirling engines are durable in its operation that requires less maintenance cost. The methodology for both configurations consists of thermodynamic formulation of Stirling Cycle, Schmidt theory and few composition of flywheel and Ross-Yoke dimension. Customarily, the Stirling engine based Beta configuration will operate during the occurrence of low and high temperature differences emanating from any type of waste heat energy. A straightforward analysis on the performance of Stirling engine based Beta configuration has been performed corresponding to the temperature variation of cooling agent. The results have shown that the temperature variation of cooling agent has a direct effect on the performances of Stirling engine in terms of its speed, voltage and output power. </p>
33
Kamyab, Mohammad Hassan, Amin Moslemi Petrudi, and Ionut Cristian Scurtu. "One-Dimensional Analysis and Modeling of the Xu 7 Engine Due to Changes in Valve Timing to Improve Engine Performance." Technium: Romanian Journal of Applied Sciences and Technology 2, no. 4 (2020): 46–53. http://dx.doi.org/10.47577/technium.v2i4.1036.
Full textAbstract:
The advancement of technology and the upgrade of internal combustion engines, the need to use precision and efficiency in controlling and regulating the injection and refuelling sets of the engine has intensified. Proper adjustment of valve timing and ignition is effective in improving the performance of internal combustion engines. In this study, the one-dimensional model of the xu 7 engine was used in the GT Suite software and the effects of changing the timing of the valve on the performance of the engine were investigated. Then, by changing the range of the user's required velocity, the appropriate valve timing was examined. By adjusting the timing of the valve, more power and torque can be obtained in the range of unusual engine velocity’s, and the efficiency of the engine can be determined in different types of uses. The extracted engine simulation results are designed for medium velocity’s. 
34
Liu, Yong Qi, Xiao Yan Wang, Guang Fei Zhu, Rui Xiang Liu, and Zhen Qiang Gao. "Simulation on the Combustion Property of Blast-Furnace Gas Engine by GT-POWER." Advanced Materials Research 156-157 (October 2010): 965–68. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.965.
Full textAbstract:
Blast-furnace gas produced from the process of iron making effectively can be used as fuel for engines to generate electricity for most middle and small steel enterprises. The effects of different component of blast-furnace gas, compressive ratio and ignition timing on combustion property of blast-furnace gas are simulated by GT-POWER software in this paper. The results show that flame speed and combustion rate will increase with the proportion of carbon monoxide and hydrogen increasing. There will be an optimized compression ratio value, under which the burning velocity is maximum. Within a certain scope, increasing ignition timing angle appropriately can improve property of combustion. A comparison of simulation and experiment result shows that the predictions give good results. All these results can help to optimize the parameters that affect the combustion, and provide certain reference for the further study blast-furnace gas engine.
35
Dong, Aiqi, Lijuan Liu, Chunce Zhao, and Ying Guan. "Neural Network Prediction of Locomotive Engine Parameters Based on the Dung Beetle Optimization Algorithm and Multi-Objective Optimization of Engine Operating Parameters." Sensors 25, no. 3 (2025): 677. https://doi.org/10.3390/s25030677.
Full textAbstract:
Altitude has a significant impact on the power and emissions of diesel engines. This paper combines neural network prediction models with artificial intelligence-based multi-objective optimization algorithms to analyze the performance of internal combustion engines for plateau dual-source locomotives operating at different altitudes. The study focuses on the altitude range based on the Laji Line and selects decision variables and output objectives that significantly affect diesel engine performance for joint optimization. First, the diesel engine is simulated and modeled using GT-Power to generate the required dataset. Then, a random sampling method is applied to generate a dataset of 400 operating points from the simulation model. The experimental results show that the neural network prediction model optimized by the DBO algorithm achieves correlation coefficients above 95%. Finally, the NSGA-II algorithm is used for multi-objective optimization. The optimization results indicate that the proposed intelligent optimization method significantly improves the performance of the diesel engine under different altitude conditions, confirming the effectiveness and potential of artificial intelligence optimization algorithms in diesel engine optimization.
36
Li, Ming Hai, and Cheng Guang Zhang. "Research on Simulation for the Solenoid Valve Parameters of High-Power Electronic Controlled Diesel Engine." Advanced Materials Research 805-806 (September 2013): 1847–51. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1847.
Full textAbstract:
Based on the 16V265H high power diesel engine as the research object, used GT-Fuel and GT-Power to build the simulation model and study solenoid valve parameters such as spring pre-tightening force, moving parts mass and spring stiffness to the influence on engine combustion performance. Through calculation and analysis, we got a set of reasonable solenoid valve parameters. The experiment proved that the simulation model can well simulate the actual operation of diesel engine and the solenoid valve parameters are feasible.
37
Tovkach, Serhii. "Control Laws of the Aviation Gas Turbine Engine." Electronics and Control Systems 2, no. 72 (2022): 20–25. http://dx.doi.org/10.18372/1990-5548.72.16938.
Full textAbstract:
The article is devoted to the solution of an important scientific and applied problem of improving the dynamic characteristics of an aviation engine and ensuring flight safety and the efficiency of aircraft operation, taking into account the properties of adaptive control of an aviation gas turbine engine: <structure><functioning><adaptation><development>. Based on the concept of creating perspective aviation engines with an increased level of control automation and with units operating at elevated temperatures and protected from high-energy electromagnetic radiation, the basic laws of controlling an aviation gas turbine engine in throttle modes, low-throttle mode, gas intake and discharge modes, and start-up mode are defined. To improve the working process of the engine, it is proposed to use the gas turbine engine control system as a mechatronic system based on the principle of adaptation. With the help of the Laplace transformation, the dynamic characteristics of the power plant were determined and the mathematical model of the power plant was investigated as a constructive aspect of the automatic control system. The gas turbine and the supersonic air manifold can to some extent be considered as independent control objects, replacing the connections between them with disturbing influences. For the control and limitation circuits, it is necessary to create control programs that calculate the values of the control parameters of the turbocharger rotor speed and gas temperature behind the turbine. Regulation of fuel consumption is carried out according to the derivative of the control parameters.
38
Reyes-Flores, Victor A., Zachary Swartwout, Shane Garland, et al. "Operational Conditions for an Internal Combustion Engine in a SOFC-ICE Hybrid Power Generation System." Energies 18, no. 7 (2025): 1838. https://doi.org/10.3390/en18071838.
Full textAbstract:
Hybrid power generation systems utilizing pressurized Solid Oxide Fuel Cells (SOFCs) have gained considerable attention recently as an effective solution to the increasing demand for cleaner electricity sources. Among the various hybridization options, gas turbines (GT) and internal combustion engines (ICE) running on SOFC tail gas have been prominent. Although spark ignition (SI) tail gas engines have received less focus, they show significant potential for stationary power generation, particularly due to their ability to control combustion. This research experimentally characterized an SI engine fueled by simulated SOFC anode gas for five blends, which correspond to overall system power level and loads. The study aimed to optimize the engine operating conditions for each fuel blend and establish operational conditions that would sustain maximum performance. The results showed efficiencies as high as 31.4% at 1600 RPM, with a 17:1 compression ratio, equivalence ratio (φ) of 0.75, and a boost pressure of 165 kPa with low NOx emissions. The study also emphasizes the benefits of optimizing boost supply to minimize parasitic loads and improve brake thermal efficiency. Additionally, installing a catalytic oxidizer would enable the system to comply with new engine emission regulations. A proposed control scheme for automation includes regulating engine power by controlling the boost of the supercharger at a fixed throttle position. The results of this study help to promote the development of this SOFC-based clean energy technology.
39
Kathri, Akasyah M., Rizalman Mamat, Amir Aziz, Azri Alias, and Nik Rosli Abdullah. "One-Dimensional Simulation of the Combustion Process in an Engine Cylinder with Ethanol." Applied Mechanics and Materials 660 (October 2014): 447–51. http://dx.doi.org/10.4028/www.scientific.net/amm.660.447.
Full textAbstract:
The diesel engine is one of the most important engines for road vehicles. The engine nowadays operates with different kinds of alternative fuels, such as natural gas and biofuel. The aim of this article is to study the combustion process that occurs in an engine cylinder of a diesel engine when using biofuel. The one-dimensional numerical analysis using GT-Power software is used to simulate the commercial four-cylinder diesel engine. The engine operated at high engine load and speed. The ethanol fuel used in the simulation is derived from the conventional ethanol fuel properties. The analysis of simulations includes the cylinder pressure, combustion temperature and rate of heat release. The simulation results show that in-cylinder pressure and temperature for ethanol is higher than for diesel at any engine speed. However, the mass fraction of ethanol burned is similar to that of diesel. MFB only affects the engine speed.
40
Mohamad Hisyam Wan Dawi, Syed, Muhammad Murtadha Othman, Ismail Musirin, Amirul Asyraf Mohd Kamaruzaman, Aainaa Mohd Arriffin, and Nur Ashida Salim. "Gamma Stirling Engine for a Small Design of Renewable Resource Model." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 2 (2017): 350. http://dx.doi.org/10.11591/ijeecs.v8.i2.pp350-359.
Full textAbstract:
<p>This paper presents a research on designing a heat engine known as the Stirling engine. The first task is to study on the background of Stirling engine including its robustness, advantages and disadvantages, history and its ability to produce useful energy. Gamma type Stirling engine will be the main focus for this paper. Thus, an effort has been made in determining a suitable formulation that will be used to design a functioning Gamma Stirling engine. This formulation can be divided into several criteria, the Stirling cycle method used to find the p-V diagram of Stirling engine, the 0<sup>th</sup> order calculation method used as a preliminary system analysis on the efficiency and performance of the engine and lastly, the Schmidt Analysis whereby used in dealing with the design and development of the engine. This formulation is then arranged accordingly into Excel programming software. As for the hardware analysis, it will be on the performance of the Stirling engine model in term of its electrical power production based on different heat source. At the end of this project, it shows that the obtained formulations can be used in designing the Gamma Stirling engine and are capable to produce an output power from the Stirling engine.</p>
41
Erdiwansyah, R. Mamat, M. S. M. Sani, et al. "Effects of Diesel-Biodiesel Blends in Diesel Engine Single Cylinder on the Emission Characteristic." MATEC Web of Conferences 225 (2018): 01013. http://dx.doi.org/10.1051/matecconf/201822501013.
Full textAbstract:
Biodiesel is an alternative fuel that is used in a diesel engine as a substitute for diesel fuel. However, using biodiesel without a modified engine can cause higher NOx emissions. Therefore, to reduce harmful emissions some strategy must be proposed or or a change in the injection is performed. In this study, injection schemes and engine performance injection time, emissions and firing characteristics of biodiesel mixing results in engines were investigated by using GT-POWER simulation. The simulations in this study were conducted on diesel engines to observe the accuracy in experimental results . The engines were tested at speeds of 1100 rpm, 1300 rpm, and 1500 rpm by using a biodiesel-diesel fuel mixture. The simulation results showed that NOx emissions were found to drop below 100 ppm when biodiesel fuel was used for all performed operations. Meanwhile CO emissions were also decreased by 10%-15% when biodiesel fuel was used, and the thermal efficiency level increased by 2% and 3.5% as compared to pure diesel. The ratio of NOx reduction rates of biodiesel and diesel was 11%-14% as compared to 9.5% with pure diesel. Based on the simulation result, it was shown that the accuracy level of simulation data with experiment was 97%. So this result can be the future testing standard and simulation by using GT-POWER could also be used especially for the automotive industry.
42
Hou, Xian Jun, Shu Chen, and Zhi'en Liu. "EGR System Performance Optimization of Diesel Engine Based on GT-Power and Fluent Co-Simulation." Advanced Materials Research 860-863 (December 2013): 1703–9. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1703.
Full textAbstract:
A calculation model of turbocharged diesel engine was developed based on one-dimension simulation software GT-power,which can provide a steady boundary condition for the flow field analysis of EGR system.The three-dimension simulation software Fluent was applied in establishing the flow field model of the air-intake system under different air inlet position to analize the distribution of the exhaust gas,and then obtained the impact of the EGRs air-inlet position to uniformity of EGR system, thereby we could acquire the parameters which achieves the best maching between the EGR system and the diesel engine, it also provided a reference for engine performance optimization.
43
Mohiuddin, A. K. M., Md Ataur Rahman, and Yap Haw Shin. "Application of Multi-Objective Genetic Algorithm (MOGA) for Design Optimization of Valve Timing at Various Engine Speeds." Advanced Materials Research 264-265 (June 2011): 1719–24. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.1719.
Full textAbstract:
This paper aims to demonstrate the effectiveness of Multi-Objective Genetic Algorithm Optimization and its practical application on the automobile engine valve timing where the variation of performance parameters required for finest tuning to obtain the optimal engine performances. The primary concern is to acquire the clear picture of the implementation of Multi-Objective Genetic Algorithm and the essential of variable valve timing effects on the engine performances in various engine speeds. Majority of the research works in this project were in CAE software environment and method to implement optimization to 1D engine simulation. The paper conducts robust design optimization of CAMPRO 1.6L (S4PH) engine valve timing at various engine speeds using multiobjective genetic algorithm (MOGA) for the future variable valve timing (VVT) system research and development. This paper involves engine modelling in 1D software simulation environment, GT-Power. The GT-Power model is run simultaneously with mode Frontier to perform multiobjective optimization.
44
Yin, Qian Xi, Yu Liu, Guo Dong Feng, Qing Dang Wang, Feng Bian, and Hong Tao Hu. "1-D Simulation of a Diesel Engines Injection Timing." Applied Mechanics and Materials 494-495 (February 2014): 201–5. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.201.
Full textAbstract:
Using GT-POWER to simulate a diesel engines injection timing, calibrating simulation model has been done according to experimental data. Analysis of the effect on engine power characteristics and emission characteristics caused by different pre-injection timing and main injection timing is the main work. The simulation results show that, the output torque and NOx increased when the injection timing is advanced. In contrast, the soot emission is decreased when the injection timing is advanced.
45
Zhang, Peng Qi, Dong Hui Zhao, Peng Wu, and Yin Yan Wang. "465Q Gasoline Engine Turbocharger Matching and Performance Calculation." Advanced Materials Research 500 (April 2012): 223–29. http://dx.doi.org/10.4028/www.scientific.net/amr.500.223.
Full textAbstract:
This article take the Dongan 465Q non-supercharged engine as the research object, the simulation model is built by GT-POWER and the corresponding test bench is set up. The simulation error is less than 3%, which indicates that the parameters of this model is correct, and can be used for further study of the gasoline engine. The supercharger, Garrett GT12, is selected by the matching calculation. The non-supercharged 465Q engine is modified as a turbocharged engine. The test results show that the power and the fuel consumption of the turbocharged engine is improved obviously, whose power is increased by 48% and fuel consumption is reduced by 4%.
46
Ismail, Abdul Rahim, Rosli Abu Bakar, Semin Ali, and Ismail Ali. "Computer Modelling For 4-Stroke Direct Injection Diesel Engine." Advanced Materials Research 33-37 (March 2008): 801–6. http://dx.doi.org/10.4028/www.scientific.net/amr.33-37.801.
Full textAbstract:
Study on computational modeling of 4-stroke single cylinder direct injection diesel engine is presented. The engine with known specification is being modeled using one dimension CFD GT-Power software. The operational parameters of the engine such as power, torque, specific fuel consumption and mean effective pressure which are dependent to engine speed are being discussed. The results from the simulation study are compared with the theoretical results to get the true trend of the results.
47
Zheng, Kun Peng, Yong He Chen, and Zhen Biao Wei. "Design Research of Intake Compensation Device for Improving the Dynamic Performance of Diesel Engine in Plateau Environment." Applied Mechanics and Materials 628 (September 2014): 167–70. http://dx.doi.org/10.4028/www.scientific.net/amm.628.167.
Full textAbstract:
The impact of plateau environment on working performance of diesel engine is greater, it is important to explore the research of power restoration of diesel engine in plateau environment. In this paper, the numerical simulation model of a whole diesel engine with high-power is established based on the GT-POWER software, and the accuracy of the model is verified by the bench test. Based on this, the best intake air amount of compensation of the engine are calculated with different conditions in plateau environment, the compensation intake device with the idea which the high-pressure air of the vehicle storage is introduced into the engine to restore the power is proposed, and the relevant hardware and software are designed. Through real vehicle tests show that the compensation intake device can improve the dynamic performance of diesel engine effectively, which provide a basis for diesel engine design and improving the applicability of the existing diesel engine of vehicles in plateau environment.
48
Zhu, Ming Yi, Xiang Yang Zhao, and Qing Liu. "Simulation Analysis of Automotive Exhaust Muffler Performance Based on GT-Power." Applied Mechanics and Materials 48-49 (February 2011): 1061–64. http://dx.doi.org/10.4028/www.scientific.net/amm.48-49.1061.
Full textAbstract:
Using GT-Power software to establish the simulation model of the working process of an engine coupled with the muffler, insertion loss and pressure loss are obtained, simulation results are consistent with the experimental results, which verifies the correctness of simulation model.Therefore, it is important to shorten the vehicle development cycle and reduce cost.
49
Ahmed, Salman Abdu, Song Zhou, Yuanqing Zhu, Yongming Feng, Adil Malik, and Naseem Ahmad. "Influence of Injection Timing on Performance and Exhaust Emission of CI Engine Fuelled with Butanol-Diesel Using a 1D GT-Power Model." Processes 7, no. 5 (2019): 299. http://dx.doi.org/10.3390/pr7050299.
Full textAbstract:
Injection timing variations have a significant effect on the performance and pollutant formation in diesel engines. Numerical study was conducted to investigate the impact of injection timing on engine performance and pollutants in a six-cylinder turbocharged diesel engine. Diesel fuel with different amounts (5%, 15%, and 25% by volume) of n-butanol was used. Simulations were performed at four distinct injection timings (5°, 10°, 20°, 25°CA bTDC) and two distinct loads of brake mean effective pressure (BMEP = 4.5 bar and 10.5 bar) at constant engine speed (1800 rpm) using the GT-Power computational simulation package. The primary objective of this research is to determine the optimum injection timing and optimum blending ratio for improved efficiencies and reduced emissions. Notable improvements in engine performance and pollutant trends were observed for butanol-diesel blends. The addition of butanol to diesel fuel has greatly diminished NOX and CO pollutants but it elevated HC and CO2 emissions. Retarded injection timing decreased NOX and CO2 pollutants while HC and CO2 emissions increased. The results also indicated that early injection timings (20°CA bTDC and 25°CA bTDC) lowered both CO2 and unburned hydrocarbon emissions. Moreover, advanced injection timing slightly improved brake thermal efficiency (BTE) for all engine loads. It is concluded that retarded injection timing, i.e., 10°CA bTDC demonstrated optimum results in terms of performance, combustion and emissions and among the fuels 15B showed good outcome with regard to BTE, higher heat release rate, and lower pollution of HC, CO, and NOx.
50
Wei, Shengli, Zhicheng Zhang, Xuan Li, Chengcheng Wu, and Fan Yang. "Simulation Analysis of Fuel Economy of the GDI Engine with a Miller Cycle and EGR Based on GT-Power." Processes 10, no. 2 (2022): 319. http://dx.doi.org/10.3390/pr10020319.
Full textAbstract:
A one-dimensional (1D) simulation calculation model was created using GT-Power software to investigate the effect of an exhaust gas recirculation (EGR) in concert with the Miller cycle on engine fuel economy and using a 1.5 T gasoline direct injection (GDI) engine as the source engine. The engine was tested under partial loading, full loading, and declared working conditions. The results show that under partial load, the Miller cycle could improve engine fuel economy by reducing pumping losses. In the low-speed 1000 r/min full load region, the Miller cycle had a significant effect on increasing the engine fuel economy. When the Miller intensity was −29 °CA, the fuel consumption decreased by a maximum of 10.5%. At medium speeds, 2000 r/min to 3600 r/min, the Miller cycle did not improve fuel economy significantly. For the Miller cycle with late intake valve closure (LIVC), when the EGR rate was about 7%, the fuel consumption was reduced by about 1.3% compared with the original engine at the same EGR rate. When opposed to the original engine without EGR, the fuel consumption was lowered by approximately 3.2 percent.