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International Journal of Alternative Propulsion最新文献

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Performance and emissions of a dual fuel operated diesel engine 双燃料柴油发动机的性能和排放
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046536
N. Kapilan, R. P. Reddy
{"title":"Performance and emissions of a dual fuel operated diesel engine","authors":"N. Kapilan, R. P. Reddy","doi":"10.1504/IJAP.2012.046536","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046536","url":null,"abstract":"Vegetable oil and its esters (biodiesel) are the renewable alternative fuels that can be used as a substitute for diesel in the diesel engines. The vegetable oil fuelled diesel engine results in lower efficiency and higher smoke emission. Hence in this work, an attempt has been made to use inedible and under utilised mahua oil (MO) as a substitute for diesel by fumigating liquefied petroleum gas (LPG) along with the air. A single cylinder diesel engine was modified to work in dual fuel mode by suitable retrofitting. The MO was injected into the cylinder using a fuel pump and LPG was fumigated along with the air. In MO + LPG dual fuel mode, 9% increase in brake thermal efficiency and 35% reduction in smoke emission of the engine were observed as compared to the sole fuel mode with MO. Also, the engine performance characteristics in MO + LPG dual fuel mode are close to sole fuel mode with diesel. From this work, it is concluded that LPG can be fumigated along with the air to increase the performance of MO fuelled agricultural diesel engine.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127446074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Effect of injection timings on the performance, emission and combustion characteristics of DI diesel engine running on Calophyllum inophyllum linn oil (honne oil) 喷油正时对加油直喷柴油机性能、排放及燃烧特性的影响
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046537
B. Venkanna, C. Reddy
{"title":"Effect of injection timings on the performance, emission and combustion characteristics of DI diesel engine running on Calophyllum inophyllum linn oil (honne oil)","authors":"B. Venkanna, C. Reddy","doi":"10.1504/IJAP.2012.046537","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046537","url":null,"abstract":"The present work examines the use of a non-edible vegetable oil namely honne oil, a new possible alternative fuel for diesel engine. A direct injection (DI) diesel engine typically used in agricultural sector was operated on neat diesel (ND) and neat honne oil (H100). Static injection timing (start of static injection timing) was changed to study the performance, emission and combustion characteristics. It was observed that advancing the injection timing with H100 from the rated static injection timing (23° bTDC) increased the brake thermal efficiency and reduced CO, HC emissions and smoke opacity; however, NOx emission was increased. The ignition delay with H100 was higher than that with ND for all static injection timing under consideration. Improved premixed heat release rate was observed with H100 when the static injection timing is advanced however, for 28° bTDC premixed heat release rates decreased. The best static injection timing was found to be 27° bTDC for H100 based on brake thermal efficiency.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129823999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance and emission characteristics of methyl ester from non-edible oils in a DI diesel engine with additive and advance injection 非食用油品甲酯在添加剂和预喷直喷柴油机上的性能和排放特性
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046534
S. Vijayaraj, J. Sarangan
{"title":"Performance and emission characteristics of methyl ester from non-edible oils in a DI diesel engine with additive and advance injection","authors":"S. Vijayaraj, J. Sarangan","doi":"10.1504/IJAP.2012.046534","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046534","url":null,"abstract":"The main objective of this investigation was to study the use of neat methyl esters in DI diesel engine experimentally. Preparation of methyl esters were from non-edible oils of Jatropha curcus, Pongamia pinnata and neem (Azadirachta indica) using transestrification process. The results of the use of neat methyl esters without any modification in the engine parameters and fuel shows reduced performance with increased emissions of NOx compared with diesel. In order to improve the performance with reduced NOx emission, the fuel injection was advanced by 3 CA and a 3% by volume of diethyl ether is added as additive with the fuel. After the above engine and fuel modification, the results shows an appreciable increase in performance and reduced HC, NOx and CO emissions with a slight increase in smoke compared with neat methyl esters without any modifications. Also better performance comparable with diesel with reduced emissions is observed.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127440282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance of a direct diesel engine using aviation fuels blended with biodiesel 使用航空燃料与生物柴油混合的直接柴油发动机的性能
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046560
Burak Gökalp, H. Soyhan, H. I. Sarac
{"title":"Performance of a direct diesel engine using aviation fuels blended with biodiesel","authors":"Burak Gökalp, H. Soyhan, H. I. Sarac","doi":"10.1504/IJAP.2012.046560","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046560","url":null,"abstract":"In this study, jet fuel (JF) and railroad fuel (D2) with SME blends (5%, 20%, 50%) were used in a four-cylinder, naturally aspirated, direct (DI) diesel engine. The engine was operated under full load and tested at various speeds to determine the engine’s performance and exhaust emission characteristics. The experimental results show that as the SME ratio of the fuels increases, the break specific fuel consumption (BSFC) and exhaust temperature increase; the SME and its blends show a slight drop in engine performance. In this experiment, carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxides (NOx) and smoke opacity values were measured for each fuel. The results of the emission tests revealed that the oxygen content of SME provided a significant reduction in CO and smoke opacity emissions. However, when the test engine was fuelled by SME and its blends, NOx emissions increased.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134182998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Plug-in hybrid conversion of three wheeler using a novel drive strategy 采用新型驱动策略的插电式三轮车混合动力转换
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046538
S. Amjad, R. Rudramoorthy, S. Neelakrishnan, Sabarish Gurusubramanian, J. D. Raja, Renjit Mathew, M. Sundaravel
{"title":"Plug-in hybrid conversion of three wheeler using a novel drive strategy","authors":"S. Amjad, R. Rudramoorthy, S. Neelakrishnan, Sabarish Gurusubramanian, J. D. Raja, Renjit Mathew, M. Sundaravel","doi":"10.1504/IJAP.2012.046538","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046538","url":null,"abstract":"In Asia, three-wheelers (auto rickshaws) represent a very important mode of intermediate public transport and serving as an effective feeder to the mass transport system. However, the significant contribution to pollution levels by three wheelers has demanded for a possibility of a future solution to ensure better air standards in urban areas where the population of auto rickshaws are higher. Interest is growing in plug-in hybrid technology that offers advantages of clean and more efficient vehicles compared to the current hybrids. In this paper, the development of a novel energy management strategy suitable for Indian city driving conditions for a converted plug-in hybrid auto rickshaw is discussed. The automatic switching strategy incorporated in the control system of the plug-in hybrid auto rickshaw enables the vehicle to offer better fuel economy and advantages of lower emission, by minimising the idling and slow power running regions of an internal combustion engine. The vehicle’s energy management strategy has been tested with the various modes for the plug-in hybrid auto rickshaw. The implementation of plug-in hybrid concept with a novel drive strategy for three-wheelers will lead to reduction of urban emissions and hence better air quality for Indian cities and also provides much cheaper public transportation system.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125416044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Effect of hydrogen supplementation on the performance, combustion and emission characteristics of a natural gas fuelled S.I. engine 加氢对天然气内燃机性能、燃烧和排放特性的影响
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046547
S. S. Sandhu, M. Babu, L. Das
{"title":"Effect of hydrogen supplementation on the performance, combustion and emission characteristics of a natural gas fuelled S.I. engine","authors":"S. S. Sandhu, M. Babu, L. Das","doi":"10.1504/IJAP.2012.046547","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046547","url":null,"abstract":"This article represents the results of a single cylinder engine using specially designed electronically actuated fuel injection system fuelled with neat CNG, and mixtures of hydrogen in natural gas (HCNG) of 5, 10, 15 and 20% by energy. Experiments were conducted with wide open throttle and varying the equivalence ratio. Hydrogen which has fast burning rate, when added to compressed natural gas enhances its flame propagation rate. This was reflected in drastic improvement in emission characteristics and increase in lean burn limit. The emissions of HC, CO, decreased with increasing percentage of hydrogen but NOx was found to increase. With the increase in hydrogen supplementation, brake thermal efficiency increased and maximum brake torque timing decreased at similar equivalence ratio. The combustion analysis conducted showed that hydrogen supplementation shifted the peak pressure towards TDC and increased the heat release rate.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133954738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of blends of conventional diesel fuel and CRBO containing high levels of FFA in a DI diesel engine 直喷式柴油机中常规柴油与含高水平FFA的CRBO混合燃料的比较
International Journal of Alternative Propulsion Pub Date : 2012-04-27 DOI: 10.1504/IJAP.2012.046535
S. Saravanan, G. Nagarajan, G. L. N. Rao, S. Sampath
{"title":"Comparison of blends of conventional diesel fuel and CRBO containing high levels of FFA in a DI diesel engine","authors":"S. Saravanan, G. Nagarajan, G. L. N. Rao, S. Sampath","doi":"10.1504/IJAP.2012.046535","DOIUrl":"https://doi.org/10.1504/IJAP.2012.046535","url":null,"abstract":"This work attempts to analyse the ability of high free fatty acid (FFA) crude rice bran oil (CRBO) in replacing diesel partially in a compression ignition (CI) engine. It was observed that the delay period and the maximum rate of pressure rise for CRBO blends are lower than diesel and is almost inversely proportional to FFA content. Maximum heat release rate for CRBO blends are lower and occur earlier than that of diesel. CRBO blends require longer duration to release 90% of heat than diesel and it decreases with increase in FFA content of CRBO. When operating with CRBO blends, all emission parameters were decreased significantly with a marginal increase in CO emission than that of diesel without affecting the brake thermal efficiency of the engine. It is concluded that higher FFA of CRBO blends does not inhibit its ability to be utilised as a fuel in CI engines.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127839300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrosion and contact resistance measurements of different bipolar plate material for Polymer Electrolyte Membrane Fuel Cells 聚合物电解质膜燃料电池不同双极板材料的腐蚀和接触电阻测量
International Journal of Alternative Propulsion Pub Date : 2008-07-22 DOI: 10.1504/IJAP.2008.019694
Y. Hung, H. Tawfik, K. El-Khatib, H. El-Abd
{"title":"Corrosion and contact resistance measurements of different bipolar plate material for Polymer Electrolyte Membrane Fuel Cells","authors":"Y. Hung, H. Tawfik, K. El-Khatib, H. El-Abd","doi":"10.1504/IJAP.2008.019694","DOIUrl":"https://doi.org/10.1504/IJAP.2008.019694","url":null,"abstract":"Different types of commercial stainless steels (SS316, SS310 and incoloy 800), poco graphite, composite graphite, titanium carbide, zirconium carbide and carbide base coating on aluminum substrate using thermal spray technique were evaluated as metallic bipolar plate in terms of Interfacial Contact Resistance (ICR) and corrosion resistance in a solution simulating the environment of a bipolar plate in a Polymer Electrolyte Membrane Fuel Cell (PEMFC), 0.5 M H2SO4 and 200 ppm HF at room temperature. In addition, a comparison between graphite composites and carbide-based amorphous metallic coating alloy bipolar plate cost analysis. Results show that stainless steels have a high ICR and undergo corrosion in both anode and cathode due to the passive film formation. Moreover, although carbide-based alloy showed an ICR much less than composite graphite, their behaviour was not satisfactory in corrosive acidic medium.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114964337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Sensitivity analysis in a simulated auto thermal Natural Gas reforming process 模拟天然气自动热重整过程的灵敏度分析
International Journal of Alternative Propulsion Pub Date : 2008-07-22 DOI: 10.1504/IJAP.2008.019693
H. Baloğlu, G. Nasin Saygili
{"title":"Sensitivity analysis in a simulated auto thermal Natural Gas reforming process","authors":"H. Baloğlu, G. Nasin Saygili","doi":"10.1504/IJAP.2008.019693","DOIUrl":"https://doi.org/10.1504/IJAP.2008.019693","url":null,"abstract":"Auto Thermal natural gas Reforming (ATR) is one of the mostly used conventional hydrogen generation technologies by the highly developed countries. ATR reactors do not need any direct or indirect heat exchanger, and that is why they are more compact and so preferable than the other reformers. In this study, a process including reformers, carbon dioxide sequestration and a cryogenic separation sub-process is simulated for a defined standardised base case feed streams. Operating conditions of the main equipments, the inlet and the outlet stream properties and compositions, general mass balances and also the possible solid carbon dioxide formation conditions of the process streams are estimated to show the consistency of the process for the base case. In the sensitivity study, the effects of O2/C and H2O/C feed stream mass ratios and the capacity of the process on flow rates of the process stream compositions, e.g. hydrogen, carbon monoxide, carbon dioxide, residual water and methane, etc. are investigated. In addition, the effects of reforming and the shift reactor temperatures on the total hydrogen generation are determined. Consequently, the possible steam generation conditions and hydrogen, carbon dioxide separation units' operating conditions are examined for the simulated process, considering the base case defined.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123250424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficiency analysis of hydrogen production methods from biomass 生物质制氢方法的效率分析
International Journal of Alternative Propulsion Pub Date : 2008-07-22 DOI: 10.1504/IJAP.2008.019692
Kj Krzysztof Ptasinski
{"title":"Efficiency analysis of hydrogen production methods from biomass","authors":"Kj Krzysztof Ptasinski","doi":"10.1504/IJAP.2008.019692","DOIUrl":"https://doi.org/10.1504/IJAP.2008.019692","url":null,"abstract":"Hydrogen is considered as a universal energy carrier for the future, and biomass has the potential to become a sustainable source of hydrogen. This article presents an efficiency analysis of hydrogen production processes from a variety of biomass feedstocks by a thermochemical method – gasification as well as biochemical methods – fermentation and anaerobic digestion. The exergetic efficiency of H2 production by gasification of more dry biomass is comparable to that of the commonly used Steam Methane Reforming. The detailed exergy analysis of H2 production by biomass gasification shows that the largest exergy losses occur in the gasifier.","PeriodicalId":425490,"journal":{"name":"International Journal of Alternative Propulsion","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130986710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
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