Journal articles: 'Fuel switching'

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Eggertson, Bill. "Fuel Switching." Refocus 7, no. 3 (May 2006): 64–65. http://dx.doi.org/10.1016/s1471-0846(06)70579-0.

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Naim, I., and T. Mahara. "Fuel Substitution for Energy Saving: A Case Study of Foundry Plant." Engineering, Technology & Applied Science Research 8, no. 5 (October 13, 2018): 3439–44. http://dx.doi.org/10.48084/etasr.2298.

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Foundry based organizations consume significant amounts of energy for producing their final products. Recently, techno-commercial and environmental factors have started triggering change from fossil fuels to cleaner ones. In this paper, factors acting as driving forces for migration from one fuel to another in order to improve energy efficiency, including various performance parameters in support of environment preservation, have been identified. Focus is also given to challenges which encounter during fuel switching. A new framework has been applied that can be used for fuel switching in manufacturing organizations. A real case of switching from three types of fuels to a single fuel has been studied and the outcomes are evaluated. Analysis related to energy consumption before and after fuel switching with respect to corresponding production data have been performed.

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Falbo, Paolo, Daniele Felletti, and Silvana Stefani. "Free EUAs and fuel switching." Energy Economics 35 (January 2013): 14–21. http://dx.doi.org/10.1016/j.eneco.2011.12.007.

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Shu, Zepeng, Huibing Gan, Zhenguo Ji, and Ben Liu. "Modeling and Optimization of Fuel-Mode Switching and Control Systems for Marine Dual-Fuel Engine." Journal of Marine Science and Engineering 10, no. 12 (December 15, 2022): 2004. http://dx.doi.org/10.3390/jmse10122004.

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The marine dual-fuel engine can switch between diesel and gas modes according to the requirements of sailing conditions, fuel cost, and other working conditions to make sure the ship is in the best operating condition. In fuel-mode switching in engines, problems such as unstable combustion and large speed fluctuations are prone to occur. However, there are some disadvantages, such as poor safety, environmental pollution, and easy damage to the engine, when the large, marine dual-fuel engine is directly tested on the bench. Therefore, in this paper, a joint simulation model of a dual-fuel engine is built using GT Power and MATLAB/Simulink to investigate the engine’s transient process of fuel-mode switching, and the conventional fuel PID(Proportion Integral Differential) control system is optimized using the cuckoo search (CS) algorithm. The simulation results show that the dual-fuel engine model has good accuracy, and the response in transient conditions meets the manufacturer’s requirements. In the process of switching from gas mode to diesel mode, due to the rapid change in fuel, the engine parameters, such as speed, fluctuate significantly, which is prone to safety accidents. In the process of switching from diesel to gas mode, because the fuel switching is gentle, all parameters are relatively stable, and the possibility of safety accidents is slight. The fuel PID control system optimized based on the cuckoo search algorithm has a better engine control effect than the traditional fuel control system.

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Masera, Omar R., and Jaime Navia. "Fuel switching or multiple cooking fuels? Understanding inter-fuel substitution patterns in rural Mexican households." Biomass and Bioenergy 12, no. 5 (January 1997): 347–61. http://dx.doi.org/10.1016/s0961-9534(96)00075-x.

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Xu, J., W. N. P. Lee, J. Phan, M. F. Saad, K. Reue, and I. J. Kurland. "Lipin Deficiency Impairs Diurnal Metabolic Fuel Switching." Diabetes 55, no. 12 (November 27, 2006): 3429–38. http://dx.doi.org/10.2337/db06-0260.

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Chamberlin, John H., and Ed R. Mayberry. "End-use fuel-switching: Is it fair?" Electricity Journal 4, no. 8 (October 1991): 38–43. http://dx.doi.org/10.1016/1040-6190(91)90011-h.

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Peng, Wuyuan, Zerriffi Hisham, and Jiahua Pan. "Household level fuel switching in rural Hubei." Energy for Sustainable Development 14, no. 3 (September 2010): 238–44. http://dx.doi.org/10.1016/j.esd.2010.07.001.

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Bertrand, Vincent. "Understanding fuel switching under the EU ETS." International Journal of Global Energy Issues 35, no. 6 (2012): 494. http://dx.doi.org/10.1504/ijgei.2012.051733.

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Perreira, Michael G. "Fuel-Switching by Customers-A Case Study." Natural Gas 4, no. 6 (September 11, 2007): 29–30. http://dx.doi.org/10.1002/gas.3410040604.

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Neri, John A. "Fuel-Switching Best Encouraged Through Rate Design." Natural Gas 8, no. 9 (August 20, 2008): 9–11. http://dx.doi.org/10.1002/gas.3410080904.

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Heltberg, Rasmus. "Fuel switching: evidence from eight developing countries." Energy Economics 26, no. 5 (September 2004): 869–87. http://dx.doi.org/10.1016/j.eneco.2004.04.018.

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Wu, Shu. "The Health Impact of Household Cooking Fuel Choice on Women: Evidence from China." Sustainability 13, no. 21 (November 1, 2021): 12080. http://dx.doi.org/10.3390/su132112080.

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In order to achieve sustainable development, the world is experiencing a profound energy transition from traditional biomass through fossil fuel to clean and renewable energy. As women are the primary undertakers of cooking in developing countries, they are more vulnerable to household air pollution caused by solid fuel combustion. Although women can benefit from clean fuel switching for household cooking, its influence on women’s health is still not well understood. Using the longitudinal data from China Family Panel Studies in 2014 and 2018, this study adopts panel data models to investigate the impact of household cooking fuel choice on women’s health from multiple dimensions in China, including self-rated health, others-rated health, and instrumental activities of daily living, aiming at shedding light on energy transition and health improvement for developing countries. It is found that household cooking fuel switching from solid fuel to clean fuel improves women’s self-rated and others-rated health but has no significant impact on women’s abilities of independence in daily activities. Specifically, each level of household cooking fuel increases respondents’ self-rated and others-rated health by 0.009 and 0.043, respectively. Moreover, further investigation of the impact of household cooking fuel switching on the health status of women from different groups found: (1) the health effect of clean cooking fuel switching on women aged 46 and above is more significant than that on women aged 45 and below, (2) there are significant differences between urban and rural areas in the impact of household cooking fuel switching on women’s health, and (3) uneducated women benefit more than educated women from clean cooking fuel switching. Finally, this study provides some policy implications to promote the energy transition and improve women’s health in China and other developing countries.

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Lin, Bor-Ren. "Implementation of a Resonant Converter with Topology Morphing to Achieve Bidirectional Power Flow." Energies 14, no. 16 (August 22, 2021): 5186. http://dx.doi.org/10.3390/en14165186.

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A DC converter with the benefits of reverse power capability, less switching loss and wide voltage operation is presented and implemented for wide input voltage applications such as fuel cell energy, photovoltaic (PV) system and DC wind power. Two full bridge resonant circuits are used in the presented converter to achieve bidirectional power flow capability and reduce switching losses on active devices. To overcome the wide input DC voltage variation problem for fuel cell energy and PV solar panel, the topology morphing between the half bridge circuit and full bridge circuit is adopted on the primary side to obtain low (or high) voltage gain under a high (or low) input voltage condition. Therefore, the stable DC voltage is controlled at the load side by using the variable switching frequency modulation. The studied hybrid CLLC converter is tested by a 1 kW prototype and the performance is verified and confirmed by experiments.

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Lin, Boqiang, and Kai Wei. "Does Use of Solid Cooking Fuels Increase Family Medical Expenses in China?" International Journal of Environmental Research and Public Health 19, no. 3 (January 31, 2022): 1649. http://dx.doi.org/10.3390/ijerph19031649.

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China has tried to replace solid fuels with cleaner energy in households. The benefits of fuel switching need to be identified. This article shows that households using solid cooking fuels suffer heavier medical expenses than those using non-solid cooking fuels. After accounting for family characteristics, using solid fuels is associated with 1.4–1.9% increases in medical care. Through the analysis of the impact mechanism, we found that solid cooking fuels harm the health conditions of family members and increase the probability of illness, thereby increasing medical expenses, while the ratio of fuel fees does not change significantly if switching cooking fuels. Furthermore, we explored heterogeneity to better understand the underlying relationship. For urban and higher-educated families with house ownership, the impact of solid fuels on medical expenses was weaker compared to rural and lower-educated households without owned houses. Therefore, considering the costs and benefits, we recommend continuing the conversion from solid fuels to non-solid fuels. In the fuel transition process, it is beneficial to raise residents’ awareness and improve behavior to avoid indoor air pollution.

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Lu, Weiliang, Alexis Arrigoni, Anatoliy Swishchuk, and Stéphane Goutte. "Modelling of Fuel- and Energy-Switching Prices by Mean-Reverting Processes and Their Applications to Alberta Energy Markets." Mathematics 9, no. 7 (March 25, 2021): 709. http://dx.doi.org/10.3390/math9070709.

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This paper introduces a fuel-switching price to the Alberta market, which is designed for encouraging power plant companies to switch from coal to natural gas when they produce electricity; this has been successfully applied to the European market. Moreover, we consider an energy-switching price which considers power switch from natural gas to wind. We modeled these two prices using five mean reverting processes including a Regime-switching processes, Lévy-driven Ornstein–Uhlenbeck process and Inhomogeneous Geometric Brownian Motion, and estimate them based on multiple procedures such as Maximum likelihood estimation and Expectation-Maximization algorithm. Finally, this paper proves previous results applied to the Albertan Market where the jump modeling technique is needed when modeling fuel-switching data. In addition, it not only gives promising conclusions on the necessity of introducing Regime-switching models to the fuel-switching data, but also shows that the Regime-switching model is better fitted to the data.

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Limwittayakorn, Teeramaethin, and Wongkot Wongsapai. "The Study of Renewable Heat Incentive in Thailand." Advanced Materials Research 931-932 (May 2014): 1073–77. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.1073.

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Renewable energy activities in Thailand are now continuously developed under the deployment of the nationals Alternative Energy Development Plan (AEDP). However, renewable for heat activities require financial instrument or scheme to support the long-run widespread development. This study aims to investigate the appropriate renewable heat incentive (RHI) to encourage the renewable heat projects in Thai market by calculate from the fuel switching concept from various fossil fuels to renewable energy and applying the investment cost, fuel cost, operation and maintenance cost, depreciation along with engineering approaches with expected rate of return from 10 to15%. The replacement from five fossil fuels to 11 types of potential renewable energy, in gasification and direct heating technology, we found that anthracite replaced by RDF require the most support with 5.14 baht per kilogram of RDF. However, in the case of fuel switching to the expensive fuels such as oil and LPG to renewable energy such as biomass, the incentive values are all negative, which means that no support required..

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Beltramo, Mark A. "Modelling fuel-switching between natural gas and fuel oil in US manufacturing." Energy Economics 11, no. 1 (January 1989): 70–78. http://dx.doi.org/10.1016/0140-9883(89)90036-4.

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Wang, Dong Liang, Min Wan, and Huan You Pan. "Study on Response Characteristics of Switching Zirconia Oxygen Sensor for Air-Fuel Ratio Control." Advanced Materials Research 343-344 (September 2011): 150–55. http://dx.doi.org/10.4028/www.scientific.net/amr.343-344.150.

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The time delay between the changed quantity of the injected fuel and the detection of the resulting change of the air-fuel ratio determines the dynamic nature of the closed-loop control for air-fuel ratio, and the response delay of oxygen sensor itself is a main effect factor. The response characteristics of switching zirconia oxygen sensor will change and even deteriorate with the increasing service time of oxygen sensor. In this paper, the response characteristics of switching zirconia oxygen sensor and the impact of response slowing on air-fuel ratio and emissions are studied through engine bench test, the impact of response delay of switching zirconia oxygen sensor on air-fuel ratio control is analysed, and a new controller of air-fuel ratio based on discrete PI controller is proposed.

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Zhang, Yanni, Fanyuan Deng, Hanyang Man, Mingliang Fu, Zhaofeng Lv, Qian Xiao, Xinxin Jin, Shuai Liu, Kebin He, and Huan Liu. "Compliance and port air quality features with respect to ship fuel switching regulation: a field observation campaign, SEISO-Bohai." Atmospheric Chemistry and Physics 19, no. 7 (April 11, 2019): 4899–916. http://dx.doi.org/10.5194/acp-19-4899-2019.

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Abstract. Since 1 January 2017, ships berthed at the core ports of three designated “domestic emission control areas” (DECAs) in China should be using fuel with a sulfur content less than or equal to 0.5 %. In order to evaluate the impacts of fuel switching, a measurement campaign (SEISO-Bohai) was conducted from 28 December 2016 to 15 January 2017 at Jingtang Harbor, an area within the seventh busiest port in the world. This campaign included meteorological monitoring, pollutant monitoring, aerosol sampling and fuel sampling. During the campaign, 16 ship plumes were captured by the on-shore measurement site, and 4 plumes indicated the usage of high-SF (SF refers to the sulfur content of marine fuels). The average reduction of the mean ΔNOx∕ΔSO2 ratio from high-sulfur plumes (3.26) before 1 January to low-sulfur plumes (12.97) after 1 January shows a direct SO2 emission reduction of 75 %, consistent with the sulfur content reduction (79 %). The average concentrations of PM2.5 (particulate matter with a diameter less than 2.5 µm), NOx, SO2, O3 and CO during campaign were 147.85 µg m−3, 146.93, 21.91, 29.68 ppb and 2.21 ppm, respectively, among which NOx reached a maximum hourly concentration of 692.6 ppb, and SO2 reached a maximum hourly concentration of 165.5 ppb. The mean concentrations of carbonaceous and dominant ionic species in particles were 6.52 (EC – elemental carbon), 23.10 (OC – organic carbon), 22.04 (SO42-), 25.95 (NO3-) and 13.55 (NH4+) µg m−3. Although the carbonaceous species in particles were not significantly affected by fuel switching, the gas and particle pollutants in the ambient air exhibited clear and effective improvements due to the implementation of low-sulfur fuel. Comparison with the prevailing atmospheric conditions and a wind map of SO2 variation concluded a prompt SO2 reduction of 70 % in ambient air after fuel switching. Given the high humidity at the study site, this SO2 reduction will abate the concentration of secondary aerosols and improve the acidity of particulate matter. Based on the enrichment factors of elements in PM2.5, vanadium was identified as a marker of residual fuel ship emissions, decreasing significantly by 97.1 % from 309.9 ng m−3 before fuel switching to 9.1 ng m−3 after regulation, which indicated a crucial improvement due to the implementation of low-sulfur fuels. Ship emissions were proven to be significantly influential both directly and indirectly on the port environment and the coastal areas around Bohai Bay, where the population density reaches over 650 people per square kilometer. The results from this study report the positive impact of fuel switching on the air quality in the study region and indicate a new method for identifying the ship fuel type used by vessels in the area.

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Bizon, Nicu, and Phatiphat Thounthong. "A Simple and Safe Strategy for Improving the Fuel Economy of a Fuel Cell Vehicle." Mathematics 9, no. 6 (March 11, 2021): 604. http://dx.doi.org/10.3390/math9060604.

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A new real-time strategy is proposed in this article to optimize the hydrogen utilization of a fuel cell vehicle, by switching the control references of fueling regulators, based on load-following. The advantages of this strategy are discussed and compared, with advanced strategies that also use the aforementioned load-following mode regulator of fueling controllers, but in the entire loading range, respectively, with a benchmark strategy utilizing the static feed-forward control of fueling controllers. Additionally, the advantages of energy-storage function in a charge-sustained mode, such as a longer service life and reduced size due to the implementation of the proposed switching strategy, are presented for the dynamic profiles across the entire load range. The optimization function was designed to improve the fuel economy by adding to the total power of the fuel utilization efficiency (in a weighted way). The proposed optimization loop will seek the reference value to control the fueling regulator in real-time, which is not regulated by a load-following approach. The best switching threshold between the high and low loading scales were obtained using a sensitivity analysis carried out for both fixed and dynamic loads. The results obtained were promising—(1) the fuel economy was two-times higher than the advanced strategies mentioned above; and (2) the total fuel consumption was 13% lower than the static feed-forward strategy. This study opens new research directions for fuel cell vehicles, such as for obtaining the best fuel economy or estimating fuel consumption up to the first refueling station on the planned road.

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Muoio, Deborah M. "HDAC3 sets the timer on muscle fuel switching." Nature Medicine 23, no. 2 (February 2017): 148–50. http://dx.doi.org/10.1038/nm.4282.

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Vanka, Dega Rajaji, and K. Chandra Sekhar. "Power applications for fuel-cell using switching regulators." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 1 (July 1, 2019): 71. http://dx.doi.org/10.11591/ijeecs.v15.i1.pp71-79.

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<p><strong> </strong></p>Generally the switch mode power supply input voltage source is constant or shows insignificant little varieties.in any case, when fuel call used input source the last assumption is not valid. A fuel cell stack is give a details of low and not controlled DC output voltage, moreover, when the demanded current increases the output voltage becomes low in a nonlinear form; from now on, suitable controller is required to taken the previously mentioned issues. In this article, a normal current-mode controller is planned to using a joined model for an energy unit stack and a boost converter; besides, the resolving control method increasing the system stability and output voltage regulation.. The proposed energy system utilizes an energy component power (polymer electrolyte film fuel cell) and a boost converter passing on power of 900 W. the proposed controller execution for output voltage regulation by means of closed loop gain estimations and step load changes. What's more, a correlation amongst open-and closed- loop estimations is made, where the controller robustness is tried for vast load varieties and fuel cell stack output voltage changes are shows on simulation results.

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Zachmann, Georg. "A stochastic fuel switching model for electricity prices." Energy Economics 35 (January 2013): 5–13. http://dx.doi.org/10.1016/j.eneco.2012.06.019.

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Geisler, J. G. "Targeting energy expenditure via fuel switching and beyond." Diabetologia 54, no. 2 (October 17, 2010): 237–44. http://dx.doi.org/10.1007/s00125-010-1932-4.

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Boykov, D. V., A. P. Perepelin, and Yu E. Hryashchev. "Differences in the power parameters of diesel engines with a high pressure fuel pump and a battery fuel system for some types of fuel." World of Oil products the Oil Companies Bulletin 02 (2021): 44–47. http://dx.doi.org/10.32758/2071-5951-2021-0-2-44-47.

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The article presents calculated and experimental data on changes in the power parameters of diesel engines equipped with a fuel system of various designs, on some types of fuels. Investigated: Euro diesel fuel, TS-1 kerosene, fuel mixtures with gasoline. It is shown that the power parameters of diesel engines with a "Common Rail" type battery fuel system with an electronic control unit change to a lesser extent in comparison with a traditional plunger-type high-pressure fuel pump with a mechanical regulator when switching to a more compressible and lighter fuel. The reasons for these differences in changing engine parameters are considered.

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Ordonez, Martin, and John E. Quaicoe. "Soft-Switching Techniques for Efficiency Gains in Full-Bridge Fuel Cell Power Conversion." IEEE Transactions on Power Electronics 26, no. 2 (February 2011): 482–92. http://dx.doi.org/10.1109/tpel.2010.2059712.

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Fonk, Robin, Tobias Graf, Sven Paeßler, Christiane Bauer, Josef Kallo, and Caroline Willich. "Switching Logic for a Direct Hybrid Electric Powertrain." Aerospace 11, no. 1 (January 12, 2024): 71. http://dx.doi.org/10.3390/aerospace11010071.

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Hybrid electric aircraft with a powertrain based on fuel cells and batteries can reduce climate-active emissions in aviation. In a direct hybrid powertrain, the fuel cell and the battery are connected in parallel, without a DC/DC converter balancing their voltage levels. Switches make it possible to select different operational modes (fuel cell only, hybrid or battery charging) depending on the power demand during different flight phases. To exploit the high specific energy of hydrogen, the system should change from Hybrid Mode during take-off to Fuel Cell Mode in cruise. During descent, the battery can be charged if Charging Mode is selected. To avoid voltage and current peaks and consequent damage to components when switching between modes, certain conditions must be fulfilled. Those switching conditions were defined, and switching procedures for changing from one mode to the other during flight were developed and tested in a lab system. In a direct hybrid, the system voltage depends on the required power. When switching from Hybrid Mode to Fuel Cell Mode, a short reduction in power of 65% is necessary for the examined system to meet the switching requirements. It is also shown how this power loss can be reduced to 25% by distributed propulsion with a second powertrain or even eliminated by a change in the hybrid ratio.

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Irvine, John. "(Invited) Switching on Elctrocatalytic Activity for Synthetic Fuel Production." ECS Meeting Abstracts MA2020-01, no. 36 (May 1, 2020): 1448. http://dx.doi.org/10.1149/ma2020-01361448mtgabs.

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De Almeida, Anı́bal T., Ana Lopes, Anabela Carvalho, Jorge Mariano, and Catarina Nunes. "Evaluation of fuel-switching opportunities in the residential sector." Energy and Buildings 36, no. 2 (February 2004): 195–203. http://dx.doi.org/10.1016/j.enbuild.2003.11.003.

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Dittenhafer-Reed, Kristin E., Alicia L. Richards, Jing Fan, Michael J. Smallegan, Alireza Fotuhi Siahpirani, Zachary A. Kemmerer, Tomas A. Prolla, Sushmita Roy, Joshua J. Coon, and John M. Denu. "SIRT3 Mediates Multi-Tissue Coupling for Metabolic Fuel Switching." Cell Metabolism 21, no. 4 (April 2015): 637–46. http://dx.doi.org/10.1016/j.cmet.2015.03.007.

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Irvine, John T. S. "(Invited) Switching on Electrocatalytic Activity for Synthetic Fuel Production." ECS Meeting Abstracts MA2020-02, no. 40 (November 23, 2020): 2541. http://dx.doi.org/10.1149/ma2020-02402541mtgabs.

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Porcher, Simon, and Thomas Porcher. "Fuel taxes and consumer behaviour: a Markov-switching approach." International Journal of Global Energy Issues 41, no. 1/2/3/4 (2018): 14. http://dx.doi.org/10.1504/ijgei.2018.092306.

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Porcher, Simon, and Thomas Porcher. "Fuel taxes and consumer behaviour: a Markov-switching approach." International Journal of Global Energy Issues 41, no. 1/2/3/4 (2018): 14. http://dx.doi.org/10.1504/ijgei.2018.10013431.

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Moon, Chanhee, Hyunduk Seo, Man Yeong Ha, Sang Youl Yoon, and Kyung Chun Kim. "De-icing of fuel/oil heat exchange systems via fuel flow direction switching device." Aerospace Science and Technology 89 (June 2019): 77–88. http://dx.doi.org/10.1016/j.ast.2019.03.047.

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Zhang, Xiaoheng, Guiquan Yan, Qipei Feng, Amar Razzaq, and Azhar Abbas. "Ecological Sustainability and Households’ Wellbeing: Linking Households’ Non-Traditional Fuel Choices with Reduced Depression in Rural China." International Journal of Environmental Research and Public Health 19, no. 23 (November 24, 2022): 15639. http://dx.doi.org/10.3390/ijerph192315639.

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A sustainable and pleasant environment is deemed to offer various positive externalities such as scenic, visual and behavioral archetypes and patterns exhibiting in various forms. Such a scenario can significantly relieve households from many psychological and personal complications such as depression. Depression has aroused great concerns in recent years due to its personal and social burdens and unforeseeable damage. Many studies have explored the effects of air pollution caused by traditional fuel consumption on depression. However, limited evidence is available on how household non-traditional fuel choices affect depression. Based on a nationally representative dataset collected from China Family Panel Studies (CFPS) in 2012, this paper employs an endogenous switching regression (ESR) model and an endogenous switching probit (ESP) model to address the endogenous issue and to estimate the treatment effects of non-traditional fuel choices on depression in rural China. The empirical results show that non-traditional fuel users have significantly lower Epidemiologic Studies Depression Scale (CES-D) scores, indicating non-traditional fuel users face a lower risk of depression. Compared to solid fuels, employing non-traditional fuels will lead to a 3.659 reduction in depression score or decrease the probability of depression by 8.2%. In addition, the results of the mechanism analysis show that household non-traditional fuel choices affect depression by reducing the probability of physical discomfort and chronic disease. This study provides new insight into understanding the impact of air pollution in the house on depression and how to avoid the risk of depression in rural China effectively.

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Vijaya Madhavi, S., and G. Tulasi Ram Das. "Comparative Study of Controllers for an Isolated Full Bridge Boost Converter Topology in Fuel Cell Applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 4 (December 1, 2018): 1644. http://dx.doi.org/10.11591/ijpeds.v9.i4.pp1644-1656.

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Now a day’s renewable energy sources became an interesting area of research of which fuel cells are emerged as an alternative source for producing electricity to meet the energy crisis. This led to a research on power conditioning systems through which fuel cell is interfaced to the utility. Of the different converter topologies Isolated full bridge boost converter (IFBC) topology is most suitable for fuel cell applications. In this paper a Predictive Switching Modulator (PSM) Control is proposed for the converter topology and its performance is compared with Linear Peak Current Mode control (LPCM), Non-Linear Carrier Control (NLC).

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Ermolenko, Georgy V., Liliana Proskuryakova, and Boris V. Ermolenko. "Switching to renewables: what will Russia gain?" foresight 19, no. 5 (September 11, 2017): 528–40. http://dx.doi.org/10.1108/fs-01-2017-0002.

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Purpose The purpose of the study is to show the technical potentials of a variety of renewable energy sources in Russia, as well as benefits from their deployment including hydrocarbon savings, emission reduction and lower energy cost. Design/methodology/approach In the paper, Russia is compared with other countries in terms of actual installed capacity and its dynamics, actual and projected share of renewables in the energy mix. The authors offer calculations of the technical potentials (fuel, heat energy, electrical energy, resource saving and environmental) of renewables (solar PV, wind, biomass, geothermal, low-grade heat, small hydro), identify social and economic preconditions and key effects of their deployment. Findings The paper features calculations on the renewable energy technology potential, based on the data by Andreenko et al. (2015), authors' calculations and statistical data. This study proves that the cumulative technical potential of the renewables in Russia amounts to 133,935 million units of oil equivalent. This study also offers assessments of oil fuel, black coal and natural gas savings that may be achieved by replacing fossil fuels with renewables; assessments of avoided air pollution calculated as CO- and CO2-equivalents. Originality/value The paper fills in the gap of comprehensive assessments of renewable energy potentials in Russia and a variety of effects that their deployment may entail, based on a single integral methodology. The authors offer a new evaluation of existing and future renewable energy potentials, overcoming the methodological and data constraints faced by previous similar studies. The up-to-date, comprehensive and accurate data will help make the right investment and policy choices.

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Lin, Nan, Changfu Zong, and Shuming Shi. "Method for Switching between Traction and Brake Control for Speed Profile Optimization in Mountainous Situations." Energies 11, no. 11 (November 6, 2018): 3042. http://dx.doi.org/10.3390/en11113042.

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Making full use of front road grade information to achieve the best fuel efficiency is important for intelligent vehicles. Normal theoretical studies pay too much attention to engine continuous feedback control. The theoretical foundation of switching between traction and brake control has been ignored. In mountainous terrain, both the engine and road slopes are energy sources. Switching between traction and brake control is the key point. This research focuses on broadening the normal control range. The comprehensive objective function that contains traction and brake control is built, and then the analytical switching control law is derived based on Pontryagin’s maximum principle (PMP). Analytical switching control laws express the mechanism of switching between traction and brake control for economic cruise control (ECC). Simulation results show that the model can solve the switch time and the entire speed profile precisely. Brake control is very important in downhill situations. The parameters in the objective function influence not only the switch time but also the switch process. This research offers a theoretical foundation for ECC with road slopes and can make onboard control more precise and efficient.

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Liu, Qinyuan, Hongqian Wang, David Kennouche, Casey Riscoe, Danielle Butts, and Scott A. Barnett. "Life Testing of Ni-YSZ Fuel Electrodes under Electrolysis, Fuel Cell, and Current Switching Operation." ECS Transactions 78, no. 1 (May 30, 2017): 3179–88. http://dx.doi.org/10.1149/07801.3179ecst.

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Ma, Xiu Qin, Hao Yang Liu, Lin Pei Chu, and Hong Lin. "Co-Benefit Analysis on Fuel-Switching Project for District Heating." Advanced Materials Research 860-863 (December 2013): 715–19. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.715.

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Various pollutants emitted by coal-fired boilers are one of the main culprits of fog and haze forming in recent years especially in the north of China. The paper analyzes the fuel-switching project for district heating and main pollutant reductions, emission reductions of atmospheric particulate matter are calculated by materials accounting method. The economic, environmental and social benefits are also calculated according to pollutant reductions. It is shown that clean energy can be used for district heating. The project provides the theoretical basis for coal fired to gas fired reforming for district heating in the north area and has a guiding role for the other areas of China.

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Diaz‐Saldierna, Luis H., Jesus Leyva‐Ramos, Diego Langarica‐Cordoba, and Jorge A. Morales‐Saldaña. "Control strategy of switching regulators for fuel‐cell power applications." IET Renewable Power Generation 11, no. 6 (May 2017): 799–805. http://dx.doi.org/10.1049/iet-rpg.2016.0717.

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Pease, Benjamin R., Armand A. Levasseur, and Oscar K. Chow. "Fuel switching. A pilot-scale approach to boiler performance predictions." Energy & Fuels 7, no. 6 (November 1993): 768–73. http://dx.doi.org/10.1021/ef00042a011.

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Nautiyal, Sunil, and Harald Kaechele. "Fuel switching from wood to LPG can benefit the environment." Environmental Impact Assessment Review 28, no. 8 (November 2008): 523–32. http://dx.doi.org/10.1016/j.eiar.2008.02.004.

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Boonin, David M. "End-use fuel switching: Is it fair? Yes, it is!" Electricity Journal 5, no. 5 (June 1992): 24–29. http://dx.doi.org/10.1016/1040-6190(92)90065-f.

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Sampim, Tatcha, Nakhon Kokkaew, and Piya Parnphumeesup. "Risk Management in Biomass Power Plants Using Fuel Switching Flexibility." Energy Procedia 138 (October 2017): 1099–104. http://dx.doi.org/10.1016/j.egypro.2017.10.126.

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Meyer, Jason, Stephen Yurkovich, and Shawn Midlam-Mohler. "Air-to-Fuel Ratio Switching Frequency Control for Gasoline Engines." IEEE Transactions on Control Systems Technology 21, no. 3 (May 2013): 636–48. http://dx.doi.org/10.1109/tcst.2012.2188631.

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Chambwera, Muyeye, and Henk Folmer. "Fuel switching in Harare: An almost ideal demand system approach." Energy Policy 35, no. 4 (April 2007): 2538–48. http://dx.doi.org/10.1016/j.enpol.2006.09.010.

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Huang, Wei Jian, Xi Zhang, and Zhen Yun Zhang. "Fuel Control Technology during FCB Process of W-Shape Flame Boiler Unit." Advanced Materials Research 614-615 (December 2012): 115–19. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.115.

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Fuel control is the major part during the FCB control process of the unit, especially the fuel used by W-shape of flame boiler is inferior coal which has the character of low-volatile and low heating value. The switching way, procedures and speed of the fuel during the FCB process will directly determine whether the boiler can have a stable combustion after the fuel amount is greatly reduced for the unit. In this article, the strategy for quick switching of new type of fuel amount for W-shape of boiler and quick stabilization control for boiler combustion is proposed. And in this article, we also take an example of an engineering concerning foreign affairs which has successfully implemented FCB. the boiler fuel control technology which realized the function of FCB for W-type flame boiler unit is deep analyzed. It leaves a very good reference value for the test of FCB for other similar units.

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Yusuf, Mohammad, and Bawadi Abdullah. "Fossil Fuels, Rising Population, and Global Warming: The Interlinked Phenomena." Oriental Journal of Physical Sciences 5, no. 1-2 (December 30, 2020): 49–52. http://dx.doi.org/10.13005/ojps05.01-02.07.

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Global warming is increasing due to accumulation of greenhouse gases (GHGs) in the earth’s atmosphere. This is leading to devastating consequences causing floods and droughts in different areas of the globe. The exploitation and burning of fossil fuels on a tremendous scale is the main reason for rising global warming. The approach of sustainable development may help in controlling the rising temperatures. Hydrogen fuel is one such promising alternative clean fuel, that could change the scenario as per the vision of ‘Hydrogen Economy’. A combined approach of switching to cleaner and greener fuel with increased natural sinks for CO2 can provide a better solution to global warming.

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Journal articles on the topic 'Fuel switching'

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