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Journal articles on the topic 'Cold engine'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Khurana, Ankit. "Pervading Cold Testing of Engines in the Automobile Zone." Applied Mechanics and Materials 110-116 (October 2011): 4544–48. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.4544.

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Although the quality of a completed engine ready for shipping is traditionally assured by adopting the firing run at the final process of the engine assembly line, we have still not readily accepted the testing of engines in cold state i.e. without actual combustion & continue to neglect all its long term benefits in view of the immediate shortcomings which not only enhances the inspection speed, fault detection but also poses zilch threat to the environment around us. It increases the effectiveness of the “In-Process Quality Control” of an Engine production line.

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2

Hutchinson, Harry. "Beating the Cold." Mechanical Engineering 123, no. 04 (2001): 74–75. http://dx.doi.org/10.1115/1.2001-apr-7.

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This article focuses on aspects of an onboard fuel-distilling system aims to curb the belch of hydrocarbons from a cool starting engine. According to an expert, feeding an engine high-volatility fuel during warm-up can halve the hydrocarbon emissions during a 30-minute drive. Ronald Mathews, along with Rudy Stanglmaier, a former University of Texas Austin doctoral student now with the Southwest Research Institute in San Antonio, and two Ford engineers, Wen Dai and George Davis, have patented an on-board distillation system that can refine fast-evaporating species from fuel while the engine is

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3

Hooper, Peter. "Experimental experience of cold starting a spark ignition UAV engine using low volatility fuel." Aircraft Engineering and Aerospace Technology 89, no. 1 (2017): 106–11. http://dx.doi.org/10.1108/aeat-09-2014-0137.

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Purpose The purpose of this paper is to present results of practical experience of cold starting a gasoline engine on low volatility fuel suitable for unmanned aerial vehicle (UAV) deployment. Design/methodology/approach Experimental research and development is carried out via dynamometer testing of systems capable of achieving cold start of a spark ignition UAV engine on kerosene JET A-1 fuel. Findings Repeatable cold starts have been satisfactorily achieved at ambient temperatures of 5°C. The approximate threshold for warm engine restart has also been established. Practical implications For

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Pfaffelhuber, Klaus, and Frank Uhl. "Engine Encapsulations for Fewer Cold Starts." ATZ worldwide 117, no. 12 (2015): 20–23. http://dx.doi.org/10.1007/s38311-015-0074-1.

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PIELECHA, Jacek, Jerzy MERKISZ, Karolina KURTYKA, and Kinga SKOBIEJ. "Cold start emissions of passenger cars with gasoline and diesel engines in Real Driving Emissions tests." Combustion Engines 179, no. 4 (2019): 160–68. http://dx.doi.org/10.19206/ce-2019-427.

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Modernization of passenger cars and constant development of existing legislation lead to a reduction of exhaust emissions from these vehicles. In accordance with package 3 of the RDE test procedure, the European Commission has extended testing methods by including exhaust emissions during a cold start. The article compares the research results on the impact of ambient temperature during the cold start of spark-ignition and compression-ignition engines in road emission tests. The tests were carried out in line with the requirements of the RDE test procedure for passenger cars meeting the Euro 6

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Li, Shi Hong, Yan Jin, and Kong Shi Ni. "Study on the Ignition Factor of Piston Kerosene Engine." Advanced Materials Research 779-780 (September 2013): 705–10. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.705.

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After the fuel changed fromgasoline to kerosene of internal combustion engine, the engine cold startperformance is poor due to the poor spray evaporation of kerosene fuel. In thepaper, the ignition factors are to be analyzed based on the gas dischargetheory. Improving the spark plug discharge and increasing the ignition energyare used to improve the cold start performance of engine. The experimentalresults show that the method can improve the cold start performance of engine,which provides the basis for the engine burning kerosene fuel

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Каменских, A. Kamenskikh, Семенов, et al. "THE HEATER FOR THE ENGINE WITH AN INFRARED EMITTER." Alternative energy sources in the transport-technological complex: problems and prospects of rational use of 2, no. 2 (2015): 408–11. http://dx.doi.org/10.12737/19161.

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In this article we consider the problem of starting a cold engine. The review of the prestarting heaters of engines existing technologies is carried out. And also proposed a method of warming up the engine sump on the basis of the heat-radiating elements, does not require installation in the vehicle. The principle of operation of the developed device, as well as noted its benefits.

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Abedian, Behrouz. "Cold Start Dead Sensor." Mechanical Engineering 136, no. 09 (2014): 42–45. http://dx.doi.org/10.1115/9.2014-sep-3.

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This article explains how electrostatic discharge from oil can destroy sensitive and crucial engine components. All thermomechanical power systems contain a dielectric fluid – namely the circulating lubricant oil – where its circulation can create friction and cause a static electric charge to build up. The charge can induce voltage spikes in portions of the circulation manifold during the initial warm-up period. The spike can destroy a sensitive component such as a sensor or microprocessor, and if that component is critical to operation, the engine will shut down. Flow electrification of liqu

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Sham, Radhey, Rajesh Kumar Saluja, Gurwinder Singh, Vineet Kumar, and Shubham Parmar. "Experimental investigation to study the effects of using hot and partially cold EGR in direct injection diesel engine." TECHNOLOGY 04, no. 03 (2016): 170–73. http://dx.doi.org/10.1142/s2339547816500059.

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Major exhaust emissions from diesel engines are CO, CO2, PM, UHC and NOx, of which NOx is one of the most harmful. A number of techniques have been utilized to control NOx emissions and exhaust gas recirculation (EGR) is one of the widely used techniques that show outstanding results in NOx reduction in both light and heavy duty diesel engines. In the present study, the experiment has been conducted on a four-stroke, single-cylinder water cooled diesel engine. Here, a long-route EGR system was used in both hot (insulated) and partially cooled (without insulation) conditions. EGR rate was varie

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Shi, Mei Yu, Rong Fu Zhu, Jiang Li, and Yuan Tao Sun. "Cold-Start Emissions of an SI Engine Using Butanol/Gasoline Blends." Advanced Materials Research 977 (June 2014): 47–50. http://dx.doi.org/10.4028/www.scientific.net/amr.977.47.

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The influence of butanol/gasoline blends at low temperature for-7°C, on cold-start emissions of a spark-ignition engine was tested. In cold-start period of the engine, the efficiency of the engine was expected to be poor, and the air/fuel mixture would be leaner for the more butanol added. The experimental results showed that the engine could be stable with B10 and B30 in cold-start, and HC and CO emissions reduced more significantly with more butanol added.

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SZWAJA, Stanisław, and Kazimierz RZADKOSZ. "Conception of a hybrid pneumatic-combustion rotary vane engine – challenge and reality." Combustion Engines 175, no. 4 (2018): 35–39. http://dx.doi.org/10.19206/ce-2018-405.

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The paper presents a new concept of applying a rotary vane engine working as the hybrid system including both a combustion engine and a pneumatic motor, which were working simultaneously. In the beginning, review on both unconventional piston engine designs and similar like solutions on rotary vane engines were conducted. Next, description of the conceptual engine was presented. The concept was realized in practice. The prototype engine was built and it was preliminary investigated focusing on problems with cold start and misfiring events which occurred. The engine was tested on LPG and gasoli

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Sethuraman, R., H. W. Parker, T. T. Maxwell, and J. C. Jones. "Submerged Electric Arc Decomposition of Methanol for Cold-Starting Methanol-Fueled Engines." Journal of Energy Resources Technology 116, no. 2 (1994): 155–60. http://dx.doi.org/10.1115/1.2906021.

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Methanol is an attractive alternative fuel based on its engine performance and emission characteristics. Methanol can be synthesized from biomass or urban waste, and as a result, it does not contribute to the net addition of carbon dioxide to the atmosphere. Cold-starting of methanol-fueled engines is difficult at temperatures below 10°C, and at sub-zero temperatures, starting may be impractical without significant engine modifications. In this research, an attempt has been made to study and prevent the cold-starting problem by using hydrogen and carbon monoxide gas mixture produced by decompo

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13

Yusof, Mohamad, Z. A. Zainal, N. A. Farid, and M. A. Miskam. "An Investigation of a Self-Pressurized Alpha V-Type Stirling Engine Converted Diesel Engine." Applied Mechanics and Materials 699 (November 2014): 695–701. http://dx.doi.org/10.4028/www.scientific.net/amm.699.695.

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This study reports the investigation results of 194cc. alpha V-type Stirling engine converted from a four-stroke diesel engine that operated in self-pressurized mode. Tests were conducted with air as the working gas and liquefied petroleum gas (LPG) as the heat source. The engine started operating at 600 °C for hot cylinder temperature and 60 °C for cold cylinder temperature, respectively. At heat input of 1100 J/s, the engine performance was successfully tested at both no load and load conditions. For mechanical shaft power assessment, the engine approximately produced a maximum brake power o

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Fawzi, Mas, Mohd Norfaiz Hashim, Fathul Hakim Zulkifli, and Shahrin Hisham Amirnordin. "Optimizing the Ignition Timing of a Converted CNG Mono-Gas Engine." Applied Mechanics and Materials 554 (June 2014): 474–78. http://dx.doi.org/10.4028/www.scientific.net/amm.554.474.

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Governmental policies on renewable energy and environmental act are aggressively being enforced to mitigate recent climate change. Natural gas is not renewable but it is the most abundant and has the lowest Lifecycle CO2emission among fossil fuel. Realizing such promising alternative, many logistics and transportation companies are converting their existing diesel-fueled vehicle to CNG-fueled. Researchers have shown that CNG engines offer advantages compared to diesel and gasoline engines such as high efficiency and low emissions. Prior to this work, a 4.3L 4-cylinder diesel engine was modifie

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Dawe, J. R., P. R. Smy, R. F. Haley, J. D. Dale, M. F. Bardon, and D. P. Gardiner. "Plasma Jet Ignition of Methanol at Sub-Zero Temperatures." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 208, no. 3 (1994): 153–59. http://dx.doi.org/10.1243/pime_proc_1994_208_178_02.

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Use of a pulsed plasma jet igniter to improve low-temperature starting of 100 per cent methanol (M100) fuelled engines is explored. A simple theoretical model of heat transfer from plasma to liquid methanol shows that sufficient energy is transferred for fuel vaporization in cold starting. Two laboratory experiments test liquid plane surface and droplet modes of ignition. An ordinary four cylinder auto engine fitted with plasma jet igniters is tested for cold starting in a Canadian winter, and cold starting is improved from +10°C (conventional ignition) to −16°C.

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Khurana, Ankit. "Contrasting Hot & Cold Testing Technique’s for I.C Engine’s." Applied Mechanics and Materials 390 (August 2013): 365–69. http://dx.doi.org/10.4028/www.scientific.net/amm.390.365.

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It is imperative to test the functionality of an engine prior to installing in a vehicle. A hot test system is a 100% production test used to check all the engine operating parameters as they would function real-time in an actual vehicle whereas a cold test consists of a leak test, which includes the testing of all cavities and systems that must not leak, such as oil, water, fuel and air. The second feature of a cold test procedure is dynamic cold testing; where all engine functions are tested while the engine is driven by an electric motor at various speeds. In this study, co-relation is draw

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WOZNIAK, Marek, Gustavo OZUNA, and Krzysztof SICZEK. "Problems with glow plug – a review." Combustion Engines 186, no. 3 (2021): 11–30. http://dx.doi.org/10.19206/ce-140114.

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Despite the development of hybrid and electric vehicles, a many-million population of cars with combustion engines, and particularly CI engines occurs on the roads. Also, many stationary CI engines are still utilized. Despite their improved technologies and characteristics the modern CI engines negatively affect an environment due to cold starting problems. Below 0 °C, engine starts are problematic due to the decreased battery performance and the spray characteristics, the increased ignition delay time, and the engine oil viscosity. Therefore, various glow plugs are applied to facilitate this

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18

He, Chang De, and Pu Xin Yang. "Optimal Design of Engine Variable Stretching for Valve Stem of 157FMI." Applied Mechanics and Materials 34-35 (October 2010): 1834–39. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1834.

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When designing motorcycle engine, engine cylinder head abnormal noise is common, and difficult to eliminate due to thermal expansion and contraction of the aluminum alloy cylinder head. In this study, on the basis of dynamic change with the performance of 157FMI engine in hot and cold, the reasons for engine cylinder head abnormal noise are analysed, and valve plunger with variable length is applied to minimize the valve clearance, and to make the valve clearance of engine in cold and hot zero, and thus the noise problem of cylinder head with 157FMI engine in hot is completely eliminated.

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Ramadhas, Arumugam Sakunthalai, Hongming Xu, Dai Liu, and Jianyi Tian. "Reducing Cold Start Emissions from Automotive Diesel Engine at Cold Ambient Temperatures." Aerosol and Air Quality Research 16, no. 12 (2017): 3330–37. http://dx.doi.org/10.4209/aaqr.2015.11.0616.

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Boam, D. J., I. C. Finlay, T. W. Biddulph, et al. "The Sources of Unburnt Hydrocarbon Emissions from Spark Ignition Engines during Cold Starts and Warm-Up." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 208, no. 1 (1994): 1–11. http://dx.doi.org/10.1243/pime_proc_1994_208_152_02.

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The results of a three-year collaborative research study into the sources of unburnt hydrocarbon (uHC) emissions are reported. The study sought to extend existing knowledge of the sources in an engine to the crucial period following a cold start and before the exhaust catalyst becomes fully effective. The study, carried out on a range of engines but centred on the Rover M 16 four-valve engine, identified a number of sources, all of which are equally important in the warm-up period. The paper concludes with some recommendations for the control of uHC emissions

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21

Zhang, Chao, Bolan Liu, Jingchao Hu, Xiyang Yu, and Xiaogang Wang. "Study on cold starting performance of a low compression ratio diesel engine by using intake flame preheating." Thermal Science 24, no. 1 Part A (2020): 51–62. http://dx.doi.org/10.2298/tsci180724316z.

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Power density improvement is one the main techniques for engine thermal efficiency promotion. For turbocharged Diesel engine, low compression ratio in normally adopted for safety consideration under high power density operation. However, low compression ratio tends to lead cold starting problem. In this study, the influences factors and performances of a 10-cylinder turbocharged Diesel engine was investigated. An intake flame preheating model was built and validated by series of bench tests. The optimization of starting parameters and flame heating was conducted eventually. Based on the study,

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STELMASIAK, Zdzisław, and Mariusz RUDNICKI. "Impact of external interferences on vibroacoustic signals coming from combustion engine during cold test." Combustion Engines 160, no. 1 (2015): 26–35. http://dx.doi.org/10.19206/ce-116899.

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In the paper is presented impact of external interferences on vibroacoustic signals coming from a spark ignition engine’s vibrations in cold test performed on engine assembly line. As the basis to the analysis were used signals of piezoelectric sensor mounted on cylinder block of the engine driven by electric motor. In course of the testing it has been used the order tracking analysis of the vibrations during the cold test, while experimental results were used to statistic analysis of significance of influence with use of the MiniTab computer program. The main objective of the investigations w

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Lodi, Faisal, Ali Zare, Priyanka Arora, et al. "Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine." Applied Sciences 10, no. 11 (2020): 3839. http://dx.doi.org/10.3390/app10113839.

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Presented in this paper is an in-depth analysis of the impact of engine start during various stages of engine warm up (cold, intermediate, and hot start stages) on the performance and emissions of a heavy-duty diesel engine. The experiments were performed at constant engine speeds of 1500 and 2000 rpm on a custom designed drive cycle. The intermediate start stage was found to be longer than the cold start stage. The oil warm up lagged the coolant warm up by approximately 10 °C. During the cold start stage, as the coolant temperature increased from ~25 to 60 °C, the brake specific fuel consumpt

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Ponmurugan, M. "Attainability of Maximum Work and the Reversible Efficiency of Minimally Nonlinear Irreversible Heat Engines." Journal of Non-Equilibrium Thermodynamics 44, no. 2 (2019): 143–53. http://dx.doi.org/10.1515/jnet-2018-0009.

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Abstract We use the general formulation of irreversible thermodynamics and study the minimally nonlinear irreversible model of heat engines operating between a time-varying hot heat source of finite size and a cold heat reservoir of infinite size. We find the criterion under which the optimized efficiency obtained by this minimally nonlinear irreversible heat engine can reach the reversible efficiency under the tight coupling condition: a condition of no heat leakage between the system and the reservoirs. We assume the rate of heat transfer from the hot to the cold heat reservoir obeys Fourier

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Радченко, Андрій Миколайович, Анатолій Анатолійович Зубарєв, Сергій Георгійович Фордуй, Володимир Володимирович Бойчук та Андрій Вікторович Коновалов. "АНАЛІЗ ЕФЕКТИВНОСТІ ОХОЛОДЖЕННЯ ПОВІТРЯ НА ВХОДІ КОГЕНЕРАЦІЙНОГО ГАЗОПОРШНЕВОГО МОДУЛЯ НА ЧАСТКОВИХ НАВАНТАЖЕННЯХ". Aerospace technic and technology, № 8 (31 серпня 2019): 54–58. http://dx.doi.org/10.32620/aktt.2019.8.08.

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The fuel efficiency of the reciprocating gas engine deteriorates with the increase of ambient air temperatures at the inlet to the radiator of the recirculating cooling water system for cooling the scavenge gas/air mixture at the inlet of the working cylinders and the air at the inlet of the scavenge air turbocharger. The peculiarity of cogeneration reciprocating gas modules of plants for combined production of electricity, heat, and cold is the operation mainly at partial loads according to the schedules of consumption of electricity, heat, and cold. The efficiency of cooling air of cogenerat

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Stewart, P. A. E. "Neutron and Positron Techniques for Fluid Transfer System Analysis and Remote Temperature and Stress Measurement." Journal of Engineering for Gas Turbines and Power 110, no. 2 (1988): 279–88. http://dx.doi.org/10.1115/1.3240118.

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Nonintrusive radiation techniques have been routinely used, since 1970, for the determination of metal component movements and clearances within engines using high-energy x-rays. Oil system operation was first analyzed using “cold” neutrons in 1975 and, since 1980, positron-emitting isotope tomography has been developed using multiwire proportional counters to determine the X, Y, and Z coordinates of labeled oil volumes within engines. The tomographic system will allow a plane-by-plane inspection across an engine or rig to be carried out using radioisotope images overlaid by an engine general

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Wagner, Matthew J., Nelson H. Forster, Kenneth W Van Treuren, and David T. Gerardi. "Vapor Phase Lubrication for Expendable Gas Turbine Engines." Journal of Engineering for Gas Turbines and Power 122, no. 2 (2000): 185–90. http://dx.doi.org/10.1115/1.483193.

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Vapor phase lubrication (VPL) is an emerging technology that is currently targeted for application in limited life, expendable engines. It has the potential to cut 90 percent of the cost and weight of the lubrication system, when compared to a conventional liquid lubricated system. VPL, is effective at much higher temperatures than conventional liquid lubrication (600°C versus 200°C), so considerably less cooling for the bearing is required, to the extent that the bearing materials often dictate the maximum upper temperature for its use. The hot no. 8 bearing and the cold no. 1 bearing of the

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Taylor, R. I. "Engine friction: The influence of lubricant rheology." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 211, no. 3 (1997): 235–46. http://dx.doi.org/10.1177/135065019721100306.

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The sensitivity of engine friction to lubricant viscometry has been determined for a modern fuelefficient engine, the Mercedes Benz M111 2.0 litre gasoline engine, under both cold starting and fully warmed-up conditions. The study has taken into account realistic lubricant viscometric parameters such as the lubricant viscosity variation with shear rate and temperature. Results are reported for the variation of engine friction with different monograde and multigrade lubricants, including the distribution of friction losses between valve train, piston assembly and bearings with the different lub

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Hedinger, Raffael, Philipp Elbert, and Christopher Onder. "Optimal Cold-Start Control of a Gasoline Engine." Energies 10, no. 10 (2017): 1548. http://dx.doi.org/10.3390/en10101548.

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Guan, Le, Jingqiang Lin, Ziqiang Ma, Bo Luo, Luning Xia, and Jiwu Jing. "Copker: A Cryptographic Engine Against Cold-Boot Attacks." IEEE Transactions on Dependable and Secure Computing 15, no. 5 (2018): 742–54. http://dx.doi.org/10.1109/tdsc.2016.2631548.

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HIRATA, Koichi, Yoichi NIKI, Takeyuki KISHI, and Keiji Miki. "B218 Performance of Cold Potential Recovery Stirling Engine." Proceedings of the National Symposium on Power and Energy Systems 2009.14 (2009): 289–92. http://dx.doi.org/10.1299/jsmepes.2009.14.289.

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HIRATA, Koichi, Yoichi NIKI, Masakuni KAWADA, and Keiji Miki. "A14 Performance of Cold Energy Used Stirling Engine." Proceedings of the Symposium on Stirlling Cycle 2009.12 (2009): 49–52. http://dx.doi.org/10.1299/jsmessc.2009.12.49.

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Pan, Selina, Akhil Neti, Nikhil Neti, Andreas Hansen, and J. Karl Hedrick. "Validation of uncertainty estimation in engine cold start." International Journal of Powertrains 6, no. 3 (2017): 206. http://dx.doi.org/10.1504/ijpt.2017.087891.

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Hedrick, J. Karl, Andreas Hansen, Nikhil Neti, Selina Pan, and Akhil Neti. "Validation of uncertainty estimation in engine cold start." International Journal of Powertrains 6, no. 3 (2017): 206. http://dx.doi.org/10.1504/ijpt.2017.10008721.

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Bielaczyc, Piotr, Andrzej Szczotka, and Joseph Woodburn. "Cold Start Emissions of Spark-Ignition Engines at Low Ambient Temperatures as an Air Quality Risk." Archives of Environmental Protection 40, no. 3 (2014): 87–100. http://dx.doi.org/10.2478/aep-2014-0026.

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Abstract SI engines are highly susceptible to excess emissions when started at low ambient temperatures. This phenomenon has multiple air quality and climate forcing implications. Direct injection petrol engines feature a markedly different fuelling strategy, and so their emissions behaviour is somewhat different from indirect injection petrol engines. The excess emissions of direct injection engines at low ambient temperatures should also differ. Additionally, the direct injection fuel delivery process leads to the formation of PM, and DISI engines should show greater PM emissions at low ambi

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Pielecha, Jacek, Kinga Skobiej, and Karolina Kurtyka. "Testing and evaluation of cold-start emissions from a gasoline engine in RDE test at two different ambient temperatures." Open Engineering 11, no. 1 (2021): 425–34. http://dx.doi.org/10.1515/eng-2021-0047.

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Abstract In order to better reflect the actual ecological performance of vehicles in traffic conditions, both the emission standards and the applied emission tests are being developed, for example by considering exhaust emissions for a cold engine start. This article presents the research results on the impact of ambient temperature during the cold start of a gasoline engine in road emission tests. The Real Driving Emissions (RDE) tests apply to passenger cars that meet the Euro 6 emissions norm and they are complementary to their type approval tests. A portable emissions measurement system wa

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Lombaert, K., L. le Moyne, J. Tardieu de Maleissye, and J. Amouroux. "Analysis of diesel particulate: Influence of air-fuel ratio and fuel composition on polycyclic aromatic hydrocarbon content." International Journal of Engine Research 3, no. 2 (2002): 103–14. http://dx.doi.org/10.1243/14680870260127891.

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Polycyclic aromatic hydrocarbons (PAH) are pollutants produced during the combustion process and are considered as soot precursors. PAH emissions are not presently regulated although they may have dangerous effects on human health. A comparison is presented here of the influence of engine parameters (air-fuel ratio and brake mean effective pressure) on the composition of par-ticulates. The effects of a water-fuel emulsion on PAH (commonly examined in large engines) are also studied in a 1.9 L commonrail diesel engine: 13 per cent of water added to the fuel decreases the PAH concentration in di

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Hemmat Esfe, Mohammad, Ali Akbar Abbasian Arani, Saeed Esfandeh, and Masoud Afrand. "Proposing new hybrid nano-engine oil for lubrication of internal combustion engines: Preventing cold start engine damages and saving energy." Energy 170 (March 2019): 228–38. http://dx.doi.org/10.1016/j.energy.2018.12.127.

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Chang, Guo Li, Di Ming Lou, Yan Qing Yang, Xiao Tian Zhang, Wen Zhi Lv, and Ze Chao Kan. "Effect of Inlet Air Heating on Start Characteristics of a Common-Rail Diesel Engine in High Altitude Environment." Applied Mechanics and Materials 488-489 (January 2014): 1052–56. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.1052.

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Cold starting test of a high pressure common rail diesel engine was conducted on an engine test bench simulating plateau environment with high altitudes and low temperature. A comprehensive study of cold starting and idling performance was investigated under plateau ambient temperature of-35°C to-10°C and altitude ranged from 2km to 4km. Results show that, without inlet air heating, during engine starting up under different altitude at-10°C, average inlet temperature and pressure can drop slightly and idling rotating speed exhibits strong fluctuation. By heating up inlet air for 60 seconds, th

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Ali, Obed M., and Rizalman Mamat. "Improving Engine Performance and Low Temperature Properties of Blended Palm Biodiesel Using Additives. A Review." Applied Mechanics and Materials 315 (April 2013): 68–72. http://dx.doi.org/10.4028/www.scientific.net/amm.315.68.

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After the oil crisis in 1973, renewable sources of energy are gianing more interest due to multiplicity feedstocks and lower pollution compared with fossil fuels. Wide agricultural lands through the world are not fully benefited. Therefore, farming should include the production of non-food products which are suitable to weather conditions of these lands. This leads to the production of biodiesels as renewable fuel for the domestic energy market, to reduce the dependence on fossil fuels. Biodiesel have gained a large interest of researches during the last few decades, the major reason to find a

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Armbruster, H., S. Stucki, E. Olsson, and S. Gjirja. "On-board conversion of alcohols to ethers for fumigation in compression ignition engines." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 217, no. 3 (2003): 155–64. http://dx.doi.org/10.1243/09544070360550444.

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Fumigation of dimethyl ether (DME) is an interesting option for using methanol as a fuel in compression ignition engines. In this concept, a fraction of the methanol used as a fuel is catalytically converted on-board to DME and water, and the products of the conversion are introduced into the engine via the combustion air. With an optimized engine the performance as well as emissions are comparable with those obtained when running the engine on alcohol with polyethylene glycol as ignition improver. The methanol conversion has been tested with different catalysts under various conditions. Becau

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Радченко, Андрій Миколайович, Анатолій Анатолійович Зубарєв, Сергій Георгійович Фордуй, Володимир Володимирович Бойчук та Віталій Васильович Цуцман. "АНАЛІЗ ЕФЕКТИВНОСТІ ОХОЛОДЖЕННЯ ПОВІТРЯ КОГЕНЕРАЦІЙНОГО ГАЗОПОРШНЕВОГО МОДУЛЯ УСТАНОВКИ АВТОНОМНОГО ЕНЕРГОЗАБЕЗПЕЧЕННЯ". Aerospace technic and technology, № 7 (31 серпня 2019): 76–80. http://dx.doi.org/10.32620/aktt.2019.7.10.

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The analysis of the efficiency of cooling air of cogeneration gas-piston module of installations for combined production of electric energy, heat, and cold is performed. The installation for energy supply includes two JMS 420 GS-N.LC GE Jenbacher cogeneration gas-piston engines manufactured as cogeneration modules with heat exchangers for removing the heat of exhaust gases, scavenge gas-air mixture, cooling water of engine and lubricating oil. The heat of hot water is transformed by the absorption lithium-bromide chiller AR-D500L2 Century into the cold, which is spent on technological needs an

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Fu, Jing Shun, and Zheng Feng. "Numerical Simulation of Fuel Consumption of Vehicle Cold Start in Low Temperature." Applied Mechanics and Materials 291-294 (February 2013): 1925–29. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.1925.

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Building an engine cooling system model by GT-cool to analyze the fuel consumption of vehicle cold start in the low temperature environment stage.Getting the relationship between fuel consumption of vehicle cold start and the temperature of cooling water by model calculation.Providing a basis for optimizing the design of the engine cooling system.

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Han, Dan, Zhi Xia He, Guo Jun Zhang, Shuo Wang, and Qian Wang. "Cold and Thermal Flow Field Analysis of Gasoline Engine Exhaust Port Based on CFD and RE." Advanced Materials Research 1079-1080 (December 2014): 918–21. http://dx.doi.org/10.4028/www.scientific.net/amr.1079-1080.918.

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Exhaust passage is a significant part of the gasoline engine, its structure will affects the gas flow characteristics of the engine directly [1]. So, research and analysis of the exhaust tract is essential. In this paper, a detailed analysis of the flow field under cold state and hot state was made. For a start, the method of laser scanning and UG software were used to reverse modeling engine exhaust port and get the three-dimensional model. The next, the unstructured grid with local mesh refinement scheme was used to mesh this three-dimensional model with ICEM. After this, numerical simulatio

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Tarulescu, Stelian, Corneliu Cofaru, and Radu Tarulescu. "Cold Engine’s Operating Regime Influence over the Exhaust Emissions." Applied Mechanics and Materials 822 (January 2016): 219–23. http://dx.doi.org/10.4028/www.scientific.net/amm.822.219.

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This paper presents a study regarding the emissions caused by the running of a cold engine and studies the influence of the four-stroke gasoline engine’s temperature on CO2, CO, HC emissions. Experimental research has been done for three light vehicles equipped with a 1390 cm3 Renault spark ignition engines. Several test have been made under different temperature conditions by using a BEA Emission Analyser - Bosch. The experimental data have shown that the engine’s temperature has an influence on CO2, CO, HC emissions. The results show that the highest pollutants values are recorded for low ex

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Raja, A. Samuel, and A. Valan Arasu. "Exhaust gas treatment for reducing cold start emissions of a motorcycle engine fuelled with gasoline-ethanol blends." Journal of Energy in Southern Africa 26, no. 2 (2017): 84. http://dx.doi.org/10.17159/2413-3051/2015/v26i2a2199.

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In countries like India, transportation by a two wheeled motorcycle is very common owing to affordable cost, easy handling and traffic congestion. Most of these bikes use single cylinder air cooled four-stroke spark ignition (SI) engines of displacement volume ranging from 100 cm3 to 250 cm3. CO and HC emissions from such engines when started after a minimum stop-time of 12 hours or more (cold-start emissions) are higher than warmed-up emissions. In the present study, a 150 cm3 single cylinder air cooled SI engine was tested for cold start emissions and exhaust gas temperature. Different gasol

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Samuel, Raja, and Arasu Valan. "Prediction of cold start hydrocarbon emissions of air cooled two wheeler spark ignition engines by simple fuzzy logic simulation." Thermal Science 18, no. 1 (2014): 179–91. http://dx.doi.org/10.2298/tsci120726106s.

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The cold start hydrocarbon emission from the increasing population of two wheelers in countries like India is one of the research issues to be addressed. This work describes the prediction of cold start hydrocarbon emissions from air cooled spark ignition engines through fuzzy logic technique. Hydrocarbon emissions were experimentally measured from test engines of different cubic capacity, at different lubricating oil temperature and at different idling speeds with and without secondary air supply in exhaust. The experimental data were used as input for modeling average hydrocarbon emissions f

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Dhimas Satria, Rina Lusiani, Erny Listijorini, and Aswata. "Analisa Isolasi Pipa Generator Mesin Stirling Tipe Alpha Sudut Fasa 180°." R.E.M. (Rekayasa Energi Manufaktur) Jurnal 6, no. 1 (2021): 1–7. http://dx.doi.org/10.21070/r.e.m.v6i1.1058.

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This research is a development of previous research, where in the previous research, a design innovation was carried out on an alpha-type stirling engine by making the phase angle to 180o, with the aim of reducing the effect when the cold cylinder is compressed, because the phase angle currently used is (90o) with disadvantages, namely the cold cylinder is perpendicular to the top, so that the compression process against gravity. But in previous studies, the generator pipe was too long, causing a lot of energy or heat loss (heat loss) so that the compression speed was small. So that in the res

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Ganguly, Aritra, Baidya Nath Murmu, and Somnath Chakrabarti. "Performance and Emission Characteristics of a Four Stroke Spark Ignition Engine with Recirculation of Hot and Cold Exhaust Gases." International Journal of Engineering & Technology 7, no. 4.5 (2018): 405. http://dx.doi.org/10.14419/ijet.v7i4.5.20193.

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An experiment has been conducted on a four-stroke, four-cylinder spark ignition engine with and without recirculation of exhaust gas for different loads at a constant speed. Two cases were considered, the first in which 10% and later 20% of the exhaust gas was directly supplied to the intake manifold at a temperature of 820°C, while in the second case the same proportions of exhaust gas were cooled in a heat-exchanger to a temperature of 210°C before supply. Engine performance parameters like brake specific fuel consumption, brake thermal efficiency were evaluated under those conditions and co

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Izadi Najafabadi, Mohammad, and Nuraini Abdul Aziz. "Homogeneous Charge Compression Ignition Combustion: Challenges and Proposed Solutions." Journal of Combustion 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/783789.

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Engine and car manufacturers are experiencing the demand concerning fuel efficiency and low emissions from both consumers and governments. Homogeneous charge compression ignition (HCCI) is an alternative combustion technology that is cleaner and more efficient than the other types of combustion. Although the thermal efficiency andNOxemission of HCCI engine are greater in comparison with traditional engines, HCCI combustion has several main difficulties such as controlling of ignition timing, limited power output, and weak cold-start capability. In this study a literature review on HCCI engine

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