首页 > 最新文献

Journal of Biofuels最新文献

英文 中文
Photoproduction of Hydrogen by Alginate Immobilised Cultures of Rhodobacter capsulatus KU002 Isolated from Tannery Effluents 制革废水中荚膜红杆菌KU002海藻酸盐固定化培养物产氢研究
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.4.2.007
Ramchander Merugu, Vasantha Mittapelli, Pratap Rudra Manthur Padigya, Girisham Sivadevuni, Reddy Solipuram Madhusudhan
The hydrogen producing ability of a purple non-sulphur phototrophic bacterium Rhodobacter capsulatus KU002, isolated from tannery effluents, was studied by immobilising it with alginate. Alginate immobilisation promoted the production of higher amounts of hydrogen when incubated for 120 h in lactate, malate and mannitol containing medium at pH 7.0 ± 0.2. Rb. capsulatus opted L-cystine as the nitrogen source for maximum hydrogen production. L-cystine, at a concentration of 0.35 g/L, caused an enhancement under anaerobic light conditions. The highest average value of hydrogen produced in vials for the whole period of measurements after nitrogen limitation with L-cystine was 147.4 ml/L/day. Hydrogen production rates observed in this study were 6.14 ml/L/h. The results of the investigation are discussed in this paper.
采用海藻酸盐固定化方法,研究了从制革厂废水中分离出的紫色无硫光养细菌荚膜红杆菌KU002的产氢能力。在pH 7.0±0.2的乳酸盐、苹果酸盐和甘露醇培养基中培养120 h时,海藻酸盐固定化促进了氢气产量的增加。Rb。荚膜菌选择l -胱氨酸作为氮源,最大限度地产氢。当L-胱氨酸浓度为0.35 g/L时,厌氧光照条件下可增强。L-胱氨酸限氮后,整个测量周期内小瓶产氢的最高平均值为147.4 ml/L/d。本实验的产氢速率为6.14 ml/L/h。本文对调查结果进行了讨论。
{"title":"Photoproduction of Hydrogen by Alginate Immobilised Cultures of Rhodobacter capsulatus KU002 Isolated from Tannery Effluents","authors":"Ramchander Merugu, Vasantha Mittapelli, Pratap Rudra Manthur Padigya, Girisham Sivadevuni, Reddy Solipuram Madhusudhan","doi":"10.5958/J.0976-4763.4.2.007","DOIUrl":"https://doi.org/10.5958/J.0976-4763.4.2.007","url":null,"abstract":"The hydrogen producing ability of a purple non-sulphur phototrophic bacterium Rhodobacter capsulatus KU002, isolated from tannery effluents, was studied by immobilising it with alginate. Alginate immobilisation promoted the production of higher amounts of hydrogen when incubated for 120 h in lactate, malate and mannitol containing medium at pH 7.0 ± 0.2. Rb. capsulatus opted L-cystine as the nitrogen source for maximum hydrogen production. L-cystine, at a concentration of 0.35 g/L, caused an enhancement under anaerobic light conditions. The highest average value of hydrogen produced in vials for the whole period of measurements after nitrogen limitation with L-cystine was 147.4 ml/L/day. Hydrogen production rates observed in this study were 6.14 ml/L/h. The results of the investigation are discussed in this paper.","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133163118","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: 8
Performance and Emission Characteristics of a DI Compression Ignition Engine Operated on Marine Fish- Oil Biodiesel 以海洋鱼油生物柴油为燃料的直喷式压缩点火发动机的性能和排放特性
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-3015.1.1.010
R. Reddy, Sharanappa Godiganur
The high viscosity of vegetable oils leads to problem in pumping and spray characteristics. Biodiesel is recognized as a clean alternative fuel or as a fuel additive to reduce pollutant emissions from combustion equipment. Because cultivated land is too limited to grow seed- oil plants sufficient to produce both food and biodiesel, non-landbased oleaginous materials have been considered important sources for the production of the latter. In this study, fish-oil biodiesel blends are used as fuel. Marine fish oil was extracted from the discarded parts of mixed marine fish and refined. The refined marine fish oil was then transesterified with methyl alcohol to produce biodiesel, which was used thereafter as engine fuel to investigate its engine performance and emission characteristics. This paper presents the results of investigations carried out on a single-cylinder, four stroke, direct-injection, CI engine operated with methyl ester of fish-oil. The volumetric blending ratios of biodiesel with conventional diesel fuel were set at 0, 10, 20, 40, 60, 80, and 100. Engine performance (brake specific fuel consumption, brake specific energy consumption, thermal efficiency and exhaust gas temperature) and emissions (CO, HC and NOx) were measured. The maximum thermal efficiency for B20 (32.28%) was higher than that of diesel at rated load. The experimental results show that the engine performance are close to the values obtained from diesel fuel and the amount of exhaust emissions are lower than those of diesel fuel.
植物油的高粘度导致了泵送和喷雾特性的问题。生物柴油被认为是一种清洁的替代燃料或作为燃料添加剂,以减少燃烧设备的污染物排放。由于耕地太有限,无法种植足够生产食品和生物柴油的种子油料植物,因此非陆地产油材料被认为是生产生物柴油的重要来源。在这项研究中,鱼油生物柴油混合物被用作燃料。从混合海鱼的废弃部分中提取海洋鱼油并进行精制。然后将精制的海洋鱼油与甲醇酯交换制得生物柴油,并将其用作发动机燃料,研究其发动机性能和排放特性。本文介绍了以鱼油甲酯为燃料的单缸四冲程直喷内燃机的研究结果。生物柴油与常规柴油的体积配比分别为0、10、20、40、60、80和100。测量了发动机性能(制动比油耗、制动比能耗、热效率和排气温度)和排放量(CO、HC和NOx)。在额定负荷下,B20的最大热效率(32.28%)高于柴油。实验结果表明,该发动机的性能接近于柴油,废气排放量低于柴油。
{"title":"Performance and Emission Characteristics of a DI Compression Ignition Engine Operated on Marine Fish- Oil Biodiesel","authors":"R. Reddy, Sharanappa Godiganur","doi":"10.5958/J.0976-3015.1.1.010","DOIUrl":"https://doi.org/10.5958/J.0976-3015.1.1.010","url":null,"abstract":"The high viscosity of vegetable oils leads to problem in pumping and spray characteristics. Biodiesel is recognized as a clean alternative fuel or as a fuel additive to reduce pollutant emissions from combustion equipment. Because cultivated land is too limited to grow seed- oil plants sufficient to produce both food and biodiesel, non-landbased oleaginous materials have been considered important sources for the production of the latter. In this study, fish-oil biodiesel blends are used as fuel. Marine fish oil was extracted from the discarded parts of mixed marine fish and refined. The refined marine fish oil was then transesterified with methyl alcohol to produce biodiesel, which was used thereafter as engine fuel to investigate its engine performance and emission characteristics. This paper presents the results of investigations carried out on a single-cylinder, four stroke, direct-injection, CI engine operated with methyl ester of fish-oil. The volumetric blending ratios of biodiesel with conventional diesel fuel were set at 0, 10, 20, 40, 60, 80, and 100. Engine performance (brake specific fuel consumption, brake specific energy consumption, thermal efficiency and exhaust gas temperature) and emissions (CO, HC and NOx) were measured. The maximum thermal efficiency for B20 (32.28%) was higher than that of diesel at rated load. The experimental results show that the engine performance are close to the values obtained from diesel fuel and the amount of exhaust emissions are lower than those of diesel fuel.","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124308876","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
Bioethanol from Biomass: A Review 生物质制备生物乙醇研究进展
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-3015.1.2.030
N. Verma
As concern about global warming and dependence on fossil fuels grows, the search for renewable energy sources that reduce CO2 emissions becomes a matter of widespread attention. To reduce the net contribution of GHGs to the atmosphere, ethanol has been recognized as a potential alternative to petroleum-derived transportation fuels. Production of ethanol from biomass (bioethanol) is one way to reduce both consumption of crude oil and environmental degradation. It is biodegradable, low in toxicity and causes little environmental pollution if spilt. Bioethanol has higher octane number, broader flammability limit, higher flame speed and higher heat of vaporization than gasoline. These properties allow for a higher compression ratio, shorter burn time and leaner burn engine, which lead to theoretical efficiency advantages over gasoline in an internal combustion engine. Bioethanol currently accounts for more than 94% of global biofuel production. Lignocellulosic biomass is envisaged to provide a significant portion of the feedstocks for bioethanol production in the medium and long form due to their low cost and high availability. Successful utilization of cellulosic materials as renewable resources is dependent on the development of economically feasible process technologies for cellulase production. Cellulase plays a vital role in the production of bioetanol from biomass. Hydrolysis of biomass is usually carried out by the action of cellulolytic enzymes and the sequential process called Simultaneous Saccharification and Fermentation process (SSF). Cellulase production is the most expensive step during ethanol production from cellulosic biomass, and accountes for approximately 40% of the total cost. Significant cost reduction is required in order to enhance the commercial viability of cellulase production technology. Therefore, efforts are to be intensified to produce ethanol efficiently through improved fermentation technologies. Reduction in the cost of cellulases can be achieved by use of cheaper raw materials and economically viable fermentation strategies. Any strategies which can bring down the production cost of cellulases, can significantly reduce the cost of bioethanol. In the present paper, bioethanol production from lignocellulosic wastes and their cost reduction strategies are highlighted.
随着对全球变暖和对化石燃料依赖的担忧日益加剧,寻找减少二氧化碳排放的可再生能源成为一个广泛关注的问题。为了减少温室气体对大气的净贡献,乙醇已被认为是石油衍生运输燃料的潜在替代品。从生物质(生物乙醇)中生产乙醇是减少原油消耗和环境退化的一种方法。可生物降解,毒性低,泄漏对环境污染小。与汽油相比,生物乙醇具有辛烷值高、可燃性极限宽、燃烧速度快、汽化热高的特点。这些特性允许更高的压缩比,更短的燃烧时间和更少的燃烧发动机,这使得内燃机的理论效率优于汽油。生物乙醇目前占全球生物燃料产量的94%以上。由于其低成本和高可用性,预计木质纤维素生物质将为中长期的生物乙醇生产提供很大一部分原料。纤维素材料作为可再生资源的成功利用取决于经济上可行的纤维素酶生产工艺技术的发展。纤维素酶在生物质生产生物乙醇中起着至关重要的作用。生物质的水解通常是通过纤维素水解酶的作用和称为同步糖化和发酵过程(SSF)的顺序过程来进行的。纤维素酶生产是纤维素生物质生产乙醇过程中最昂贵的步骤,约占总成本的40%。为了提高纤维素酶生产技术的商业可行性,需要大幅降低成本。因此,需要加大努力,通过改进发酵技术来高效生产乙醇。降低纤维素酶的成本可以通过使用更便宜的原料和经济上可行的发酵策略来实现。任何可以降低纤维素酶生产成本的策略,都可以显著降低生物乙醇的成本。本文重点介绍了从木质纤维素废弃物中生产生物乙醇及其降低成本的策略。
{"title":"Bioethanol from Biomass: A Review","authors":"N. Verma","doi":"10.5958/J.0976-3015.1.2.030","DOIUrl":"https://doi.org/10.5958/J.0976-3015.1.2.030","url":null,"abstract":"As concern about global warming and dependence on fossil fuels grows, the search for renewable energy sources that reduce CO2 emissions becomes a matter of widespread attention. To reduce the net contribution of GHGs to the atmosphere, ethanol has been recognized as a potential alternative to petroleum-derived transportation fuels. Production of ethanol from biomass (bioethanol) is one way to reduce both consumption of crude oil and environmental degradation. It is biodegradable, low in toxicity and causes little environmental pollution if spilt. Bioethanol has higher octane number, broader flammability limit, higher flame speed and higher heat of vaporization than gasoline. These properties allow for a higher compression ratio, shorter burn time and leaner burn engine, which lead to theoretical efficiency advantages over gasoline in an internal combustion engine. Bioethanol currently accounts for more than 94% of global biofuel production. Lignocellulosic biomass is envisaged to provide a significant portion of the feedstocks for bioethanol production in the medium and long form due to their low cost and high availability. Successful utilization of cellulosic materials as renewable resources is dependent on the development of economically feasible process technologies for cellulase production. Cellulase plays a vital role in the production of bioetanol from biomass. Hydrolysis of biomass is usually carried out by the action of cellulolytic enzymes and the sequential process called Simultaneous Saccharification and Fermentation process (SSF). Cellulase production is the most expensive step during ethanol production from cellulosic biomass, and accountes for approximately 40% of the total cost. Significant cost reduction is required in order to enhance the commercial viability of cellulase production technology. Therefore, efforts are to be intensified to produce ethanol efficiently through improved fermentation technologies. Reduction in the cost of cellulases can be achieved by use of cheaper raw materials and economically viable fermentation strategies. Any strategies which can bring down the production cost of cellulases, can significantly reduce the cost of bioethanol. In the present paper, bioethanol production from lignocellulosic wastes and their cost reduction strategies are highlighted.","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"30 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114754123","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
Biofuel Development in India: Prospects and Problems 印度生物燃料的发展:前景与问题
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2014.00012.9
Suwa Lal Jangu, B. Meena
Since the beginning of civilisation, humans have depended on organic materials – or “biomass” – for cooking and heat. Many developing countries in Asia and Africa still do. Biofuels may be one of the dumber of the grand and a well-intentioned idea of 21st century. Using waste biomass to produce energy can reduce the use of fossil fuels, reduce greenhouse gas emissions, and reduce pollution and waste management problems. One of the main justifications for the development of biofuels is the environmental benefits that result from the displacement of fossil fuels. At present, the most efficient production of ethanol is based on dedicated food crops, but nowadays, biofuels are produced from non-food-crops and non-edible oil plants like biomass waste materials, Jatropha, etc. At the same time, these dedicated ethanol crops likely have the greatest impact on food supply and demand systems. The research and technological developments are day-to-day improving and becoming applicable for biofuel production from such biomass that is not for human consumption. But there are many negative environmental consequences from the production of biofuels. Governmental and non-governmental policies of biofuel development are totally business oriented. From technology developers to energy crop producers all are more economical and less environmental. Moreover, biofules have also links with social aspects as food security, food prices, resources, etc.
自人类文明开始以来,人类就一直依靠有机材料——或“生物质”——来做饭和取暖。亚洲和非洲的许多发展中国家仍然如此。生物燃料可能是21世纪最伟大、最善意的想法之一。利用废弃生物质生产能源可以减少化石燃料的使用,减少温室气体排放,减少污染和废物管理问题。发展生物燃料的主要理由之一是取代化石燃料所带来的环境效益。目前,最有效的乙醇生产是基于专门的粮食作物,但现在,生物燃料是从非粮食作物和非食用油料植物生产的,如生物质废料、麻风树等。与此同时,这些专用的乙醇作物可能对粮食供需系统产生最大的影响。研究和技术发展每天都在改进,并逐渐适用于从这种不供人类消费的生物质中生产生物燃料。但是,生产生物燃料对环境造成了许多负面影响。政府和非政府的生物燃料发展政策完全是以商业为导向的。从技术开发商到能源作物生产商,都更经济、更环保。此外,生物燃料还与粮食安全、粮食价格、资源等社会方面有联系。
{"title":"Biofuel Development in India: Prospects and Problems","authors":"Suwa Lal Jangu, B. Meena","doi":"10.5958/0976-4763.2014.00012.9","DOIUrl":"https://doi.org/10.5958/0976-4763.2014.00012.9","url":null,"abstract":"Since the beginning of civilisation, humans have depended on organic materials – or “biomass” – for cooking and heat. Many developing countries in Asia and Africa still do. Biofuels may be one of the dumber of the grand and a well-intentioned idea of 21st century. Using waste biomass to produce energy can reduce the use of fossil fuels, reduce greenhouse gas emissions, and reduce pollution and waste management problems. One of the main justifications for the development of biofuels is the environmental benefits that result from the displacement of fossil fuels. At present, the most efficient production of ethanol is based on dedicated food crops, but nowadays, biofuels are produced from non-food-crops and non-edible oil plants like biomass waste materials, Jatropha, etc. At the same time, these dedicated ethanol crops likely have the greatest impact on food supply and demand systems. The research and technological developments are day-to-day improving and becoming applicable for biofuel production from such biomass that is not for human consumption. But there are many negative environmental consequences from the production of biofuels. Governmental and non-governmental policies of biofuel development are totally business oriented. From technology developers to energy crop producers all are more economical and less environmental. Moreover, biofules have also links with social aspects as food security, food prices, resources, etc.","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114644287","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
Influence of Methyl Palmitate and Methyl Oleate Blending on Oxidation Stability of Jatropha Biodiesel 棕榈酸甲酯和油酸甲酯混配对麻疯树生物柴油氧化稳定性的影响
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2017.00004.6
Meetu Singh, Amit Sarin, N. Sharma
{"title":"Influence of Methyl Palmitate and Methyl Oleate Blending on Oxidation Stability of Jatropha Biodiesel","authors":"Meetu Singh, Amit Sarin, N. Sharma","doi":"10.5958/0976-4763.2017.00004.6","DOIUrl":"https://doi.org/10.5958/0976-4763.2017.00004.6","url":null,"abstract":"","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121922482","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
A Study on Enhancement of the Oxidation Stability and Wear Behavior of Edible & Non-Edible Oil Methyl Esters using Partial Hydrogenation Method 部分加氢法提高食用和非食用油脂甲酯的氧化稳定性和磨损性能的研究
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2020.00009.4
V. Saxena
{"title":"A Study on Enhancement of the Oxidation Stability and Wear Behavior of Edible & Non-Edible Oil Methyl Esters using Partial Hydrogenation Method","authors":"V. Saxena","doi":"10.5958/0976-4763.2020.00009.4","DOIUrl":"https://doi.org/10.5958/0976-4763.2020.00009.4","url":null,"abstract":"","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121982848","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
Feasibility of Hexanol as a CI Engine Fuel on Engine Combustion and Performance 己醇作为CI发动机燃料对发动机燃烧和性能的可行性
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2022.00005.8
Ashutosh Kumar Singh, Mujtaba Ahmed, Amit Kumar, S. Singh
{"title":"Feasibility of Hexanol as a CI Engine Fuel on Engine Combustion and Performance","authors":"Ashutosh Kumar Singh, Mujtaba Ahmed, Amit Kumar, S. Singh","doi":"10.5958/0976-4763.2022.00005.8","DOIUrl":"https://doi.org/10.5958/0976-4763.2022.00005.8","url":null,"abstract":"","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122012819","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 Evaluation of an Air Cooled Diesel Engine Fuelled with Neat Neem Oil and Diesel Blends 纯印楝油与柴油混合燃料的风冷柴油机性能评价
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-3015.3.1.006
R. C. Singh, R. Chaudhary, R. Pandey, S. Maji, A. Babbar, B. Chauhan, R. Gautam, C. Mishra
An experimental study has been carried out to investigate the performance of a single cylinder air cooled diesel engine fuelled with neem oil-diesel blend (5%, 10%, 15% and 20% by volume) and the results are compared with baseline data of diesel. Brake thermal efficiency of the engine with 5% neem oil blend was found to be marginally higher than neat diesel operation at all loads indicating better combustion due to dissolved oxygen. However, with further increase in percentage of neem oil, brake thermal efficiency of the engine reduced significantly at higher loads possibly due to increased viscosity of the fuel impinging proper combustion. Brake specific energy consumption happen to be the lowest for 5% neem oil blend at all loads, however with subsequent increase in percentage of neem oil, full load brake specific energy consumption became lower at part loads and higher at full loads as compared to neat diesel operation. Smoke opacity of 5% blend was comparable to baseline data of diesel, but it increased substantially at higher blends. With increase in percentage of neem oil in the test fuel sample the exhaust temperature showed a downward turn reflecting a comparatively improved nitrogen oxides emission tendency and reduced thermal loads. Based on this experimental study, it is envisaged that in rural/agriculture sector of India where neem oil can be available at economical cost, 5% neem oil blend may be a good substitute for mineral diesel which in turn can save considerable amount of forex outflow for equivalent crude oil import.
对印楝油-柴油混合料(体积比分别为5%、10%、15%和20%)的单缸气冷柴油机进行了性能试验研究,并与柴油机的基准数据进行了比较。在所有负荷下,掺5%印楝油的发动机的制动热效率都略高于纯柴油,这表明由于溶解氧的作用,发动机的燃烧效果更好。然而,随着印楝油比例的进一步增加,发动机在高负荷下的制动热效率显著降低,这可能是由于燃料粘度的增加影响了正常燃烧。在所有负载下,5%印楝油混合物的制动比能耗恰好是最低的,然而,随着印楝油比例的增加,与纯柴油操作相比,部分负载下的满载制动比能耗降低,满载时的满载制动比能耗更高。5%混合物的烟浊度与柴油的基线数据相当,但在更高的混合物中烟浊度大幅增加。随着试验燃料样品中楝油含量的增加,排气温度呈下降趋势,反映了氮氧化物排放趋势的相对改善和热负荷的降低。根据这项实验研究,设想在印度农村/农业部门,印度楝树油可以以经济的成本获得,5%的楝树油混合物可能是矿物柴油的良好替代品,从而可以节省相当数量的外汇流出,用于等值的原油进口。
{"title":"Performance Evaluation of an Air Cooled Diesel Engine Fuelled with Neat Neem Oil and Diesel Blends","authors":"R. C. Singh, R. Chaudhary, R. Pandey, S. Maji, A. Babbar, B. Chauhan, R. Gautam, C. Mishra","doi":"10.5958/J.0976-3015.3.1.006","DOIUrl":"https://doi.org/10.5958/J.0976-3015.3.1.006","url":null,"abstract":"An experimental study has been carried out to investigate the performance of a single cylinder air cooled diesel engine fuelled with neem oil-diesel blend (5%, 10%, 15% and 20% by volume) and the results are compared with baseline data of diesel. Brake thermal efficiency of the engine with 5% neem oil blend was found to be marginally higher than neat diesel operation at all loads indicating better combustion due to dissolved oxygen. However, with further increase in percentage of neem oil, brake thermal efficiency of the engine reduced significantly at higher loads possibly due to increased viscosity of the fuel impinging proper combustion. Brake specific energy consumption happen to be the lowest for 5% neem oil blend at all loads, however with subsequent increase in percentage of neem oil, full load brake specific energy consumption became lower at part loads and higher at full loads as compared to neat diesel operation. Smoke opacity of 5% blend was comparable to baseline data of diesel, but it increased substantially at higher blends. With increase in percentage of neem oil in the test fuel sample the exhaust temperature showed a downward turn reflecting a comparatively improved nitrogen oxides emission tendency and reduced thermal loads. Based on this experimental study, it is envisaged that in rural/agriculture sector of India where neem oil can be available at economical cost, 5% neem oil blend may be a good substitute for mineral diesel which in turn can save considerable amount of forex outflow for equivalent crude oil import.","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122023761","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: 17
A Brief Review on Renewable Sources for Biofuel 生物燃料的可再生资源研究综述
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2019.00013.8
Vinayak Goel, V. Sharma
{"title":"A Brief Review on Renewable Sources for Biofuel","authors":"Vinayak Goel, V. Sharma","doi":"10.5958/0976-4763.2019.00013.8","DOIUrl":"https://doi.org/10.5958/0976-4763.2019.00013.8","url":null,"abstract":"","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"314 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125865624","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
Potential of Mixed Algal Culture for Lipid Synthesis using Wastewater as a Nutrient Source 利用废水作为营养源的混合藻培养合成脂质的潜力
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2018.00007.7
R. Varshney, J. Sharma, Pankaj Sharma, Bishnoi R. Narsi
Microalgae can be a good alternative source for wastewater treatment and lipid production owing to their ecofriendly photosynthetic approach. A comparative study was conducted between synthetic media and wastewater in which mixed algal culture (Scenedesmus obliquus, Chlamydomonas reinhardtii and Chlorella vulgaris) was grown. In this study, the growth of mixed algal culture and total lipid contents were analysed. Removal efficiency of nitrate, phosphate and chemical oxygen demand (COD) of mixed algal culture using wastewater as medium was found to be 68.1%, 84.36% and 78%, respectively, and for heavy metals like Zn, Pb, Fe, Cr and Cu, it ranged between 91% and 98%. The lipid content of mixed algal culture was observed to be 7.04%, 10.37% and 16.96% dcw in both synthetic media (BG-11 and BBM) and wastewater. Hence, it can be concluded from this study that synthetic media can be replaced by wastewater for growing mixed algal culture, which in turn can be used for biodiesel production.
微藻由于其生态友好的光合作用方式,可以成为废水处理和油脂生产的良好替代来源。对合成培养基与废水进行了混合藻(斜景藻、莱茵衣藻和寻常小球藻)培养的对比研究。本研究对混合藻的生长和总脂含量进行了分析。以废水为培养基的混合藻对硝酸盐、磷酸盐和化学需氧量(COD)的去除率分别为68.1%、84.36%和78%,对Zn、Pb、Fe、Cr、Cu等重金属的去除率为91% ~ 98%。在合成培养基(BG-11和BBM)和废水中,混合藻培养物的脂肪含量分别为7.04%、10.37%和16.96%。因此,通过本研究可以得出结论,废水可以替代合成培养基进行混合藻培养,从而可以用于生物柴油的生产。
{"title":"Potential of Mixed Algal Culture for Lipid Synthesis using Wastewater as a Nutrient Source","authors":"R. Varshney, J. Sharma, Pankaj Sharma, Bishnoi R. Narsi","doi":"10.5958/0976-4763.2018.00007.7","DOIUrl":"https://doi.org/10.5958/0976-4763.2018.00007.7","url":null,"abstract":"Microalgae can be a good alternative source for wastewater treatment and lipid production owing to their ecofriendly photosynthetic approach. A comparative study was conducted between synthetic media and wastewater in which mixed algal culture (Scenedesmus obliquus, Chlamydomonas reinhardtii and Chlorella vulgaris) was grown. In this study, the growth of mixed algal culture and total lipid contents were analysed. Removal efficiency of nitrate, phosphate and chemical oxygen demand (COD) of mixed algal culture using wastewater as medium was found to be 68.1%, 84.36% and 78%, respectively, and for heavy metals like Zn, Pb, Fe, Cr and Cu, it ranged between 91% and 98%. The lipid content of mixed algal culture was observed to be 7.04%, 10.37% and 16.96% dcw in both synthetic media (BG-11 and BBM) and wastewater. Hence, it can be concluded from this study that synthetic media can be replaced by wastewater for growing mixed algal culture, which in turn can be used for biodiesel production.","PeriodicalId":107641,"journal":{"name":"Journal of Biofuels","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129347662","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
期刊
Journal of Biofuels
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1