Maejo International Journal of Energy and Environmental Communication最新文献_第6页

Biodiesel (Methyl Esters) 生物柴油(甲酯)

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-04-07 DOI: 10.54279/mijeec.v3i1.245153

Nurul Aina Nasriqah Binti Ma’arof, Noor Hindryawati, Siti Norhafiza Mohd Khazaai, Prakash Bhuyar, Mohd Hasbi Ab. Rahim, Gaanty Pragas Maniam

{"title":"Biodiesel (Methyl Esters)","authors":"Nurul Aina Nasriqah Binti Ma’arof, Noor Hindryawati, Siti Norhafiza Mohd Khazaai, Prakash Bhuyar, Mohd Hasbi Ab. Rahim, Gaanty Pragas Maniam","doi":"10.54279/mijeec.v3i1.245153","DOIUrl":"https://doi.org/10.54279/mijeec.v3i1.245153","url":null,"abstract":"Biodiesel, an environmentally friendly biomass-based fuel, is gaining popularity globally as a cost-effective way to meet rising fuel demand. However, the high cost of raw materials and catalysts continues to drive up biodiesel production. An alternative feedstock with a heterogeneously catalyzed reaction could be the most cost-effective way to stabilize industrial biodiesel growth. Understanding these issues led to the idea of using waste palm oil as a feedstock for biodiesel production. While using waste materials as feedstock for biodiesel is an elegant solution, converting high free fatty acids (FFA) directly into methyl esters has some drawbacks. High FFA processes (acid esterification, then base transesterification) are costly. The commercial processes currently use a homogeneous system with sulfuric acid to catalyze both esterification and transesterification. However, heterogeneous solid acid catalysts are preferred over hazardous mineral acids for high FFA esterification because they are less corrosive, produce less waste, and are easier to separate from reactants and products by filtration, recovery, and reusability. Heterogeneous acid catalysts can also simultaneously catalyze transesterification and esterification reactions. Thus, new waste-based support for heterogeneous catalysts (solid acid catalysts) is required to convert waste oils into biodiesel.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90075690","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

Towards a sustainable approach for the development of biodiesel microalgae, Closterium sp. 生物柴油微藻的可持续发展之路

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-04-02 DOI: 10.54279/mijeec.v3i1.245114

Nuttapong Saetang, Sawitree Tipnee

{"title":"Towards a sustainable approach for the development of biodiesel microalgae, Closterium sp.","authors":"Nuttapong Saetang, Sawitree Tipnee","doi":"10.54279/mijeec.v3i1.245114","DOIUrl":"https://doi.org/10.54279/mijeec.v3i1.245114","url":null,"abstract":"As fossil fuels are the principal source for the automobile and energy sectors, global warming and a rapid decrease in their availability are seen. Alternative fuels that are sustainable, renewable, and eco-friendly are widely investigated in order to maintain an aesthetic environment and combat fossil fuel depletion. Biofuels have the ability to both reduce pollution and provide energy. This study focuses on the extraction of oil from freshwater microalgae, Closterium sp. algae using the Soxhlet extraction process for biodiesel production. Oils are extracted from dry microalgae biomass and used in biodiesel production using solvent (hexane and acetone) extraction. With the help of solvents and catalysts, the extracted oil undergoes transesterification, which transforms it to biodiesel. Closterium sp. oil extraction using hexane and acetone yielded 7.8 and 5.6 g, respectively, as well as biodiesel was achieved 6.4 and 4.1 g. In the near future, this would be a revolutionary approach to produce cost-effective biodiesel from microalgae. Moreover, in this research article, Closterium sp. biotechnology for biodiesel production developments and prospects are discussed.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89006209","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

Performance of cylindrical parabolic solar collector with the tracking system 带跟踪系统的圆柱形抛物面太阳能集热器性能

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-03-17 DOI: 10.54279/mijeec.v3i1.245096

M. Anil Kumar, K. Sridhar, B. Devika

{"title":"Performance of cylindrical parabolic solar collector with the tracking system","authors":"M. Anil Kumar, K. Sridhar, B. Devika","doi":"10.54279/mijeec.v3i1.245096","DOIUrl":"https://doi.org/10.54279/mijeec.v3i1.245096","url":null,"abstract":"A parabolic solar collector collects the radiant energy emitted from the sun and focuses on a point. Parabolic trough collectors are the low-cost implementation of concentrated solar power technology that focuses incident sunlight onto a tube filled with a heat transfer fluid. However, the fundamental problem with the cylindrical parabolic collector without tracking was that the solar collector does not move with the sun's orientation. The development of an automatic tracking system for cylindrical parabolic collectors will increase solar collection and the efficiency of devices. The present study of this project work presents an experimental platform based on the design, development, and performance characteristic of water heating by tracking solar cylindrical parabolic concentrating system. The tracking mechanism is to be made by stepper motor arrangement to receive the maximum possible energy of solar radiation as it tracks the sun's path. The performance of the parabolic trough collectors is experimentally investigated with the water circulated as heat transfer fluid. The collector efficiency is calculated.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86503552","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

Waste to wealth: A sustainable circular bioeconomy approach of chicken manure powder for increasing productivity of Lanchester’s freshwater prawn (Macrobrachium lanchesteri) 废物转化财富:利用鸡粪粉提高兰彻斯特淡水对虾产量的可持续循环生物经济方法

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-03-08 DOI: 10.54279/mijeec.v3i1.245089

Buncha Tongmee, Nattakarn Mukdajaturaphak, Yuwalee Unpaprom, Rameshprabu Ramaraj, Tipsukhon Pimpimol, Niwooti Whangchai

{"title":"Waste to wealth: A sustainable circular bioeconomy approach of chicken manure powder for increasing productivity of Lanchester’s freshwater prawn (Macrobrachium lanchesteri)","authors":"Buncha Tongmee, Nattakarn Mukdajaturaphak, Yuwalee Unpaprom, Rameshprabu Ramaraj, Tipsukhon Pimpimol, Niwooti Whangchai","doi":"10.54279/mijeec.v3i1.245089","DOIUrl":"https://doi.org/10.54279/mijeec.v3i1.245089","url":null,"abstract":"A biorefinery is ideal because it can combine many processes to produce multiple bio-products from organic solid waste. Moreover, in view of socially rising energy demands and biodiversity conservation, biorefinery contributed as a sustainable strategic tool for the emerging circular bio-economy. In this research objective was to study some techniques to increase the productivity of Lanchester’s freshwater prawn in earthen ponds. The experiment using a completely randomized design was conducted. In six Nattearthen ponds, different amounts of chicken manure were applied to produce different amounts of phytoplankton (green algae). The first pond was control, then, the 2nd to 6th ponds were applied with chicken manure in 30, 60, 90, 120 and 150 kg/rai/week, respectively. The prawns were fed twice daily with 5% of total body weight using 40% protein diet. The results of the study showed that feeding with different densities of phytoplankton (green algae) affected the productivity of Lanchester's freshwater prawn significantly. The highest productivity of Lanchester's freshwater prawn was 566.30 ±4.88 g from the pond applied with chicken manure of 120 kg/rai/week. The productivity of Lanchester’s freshwater prawn applied with 90, 30, 60, 150 and 0 kilograms/rai/week of chicken manure was 416.53 ± 9.89, 295.43 ± 5.46, 281.13 ± 4.63, 275.39±4.78 and 265.86 ±4.79 g, respectively. In conclusion, the effect of different densities of phytoplankton (green algae) increased the productivity of Lanchester's freshwater prawn (Macrobrachium lanchesteri).","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"9 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91437976","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

Multiple three-phase induction motors connected to a zigzag transformer 多个三相感应电动机连接到一个锯齿形变压器

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-02-28 DOI: 10.54279/mijeec.v3i1.245075

Abdelhafiz Zeiada, Ngu Eng Eng, Moataz Saad Balla

引用次数: 0

Estimating the potential effects of climate change on GDP in the agriculture sector by countries in the ASEAN region 评估气候变化对东盟地区各国农业部门GDP的潜在影响

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-02-17 DOI: 10.54279/mijeec.v3i1.245073

Vannasinh Souvannasouk, Wichuda Singkam, Nirote Sinnarong, Ke Nunthasen, Waraporn Nunthasen, Anupong Wongchai

{"title":"Estimating the potential effects of climate change on GDP in the agriculture sector by countries in the ASEAN region","authors":"Vannasinh Souvannasouk, Wichuda Singkam, Nirote Sinnarong, Ke Nunthasen, Waraporn Nunthasen, Anupong Wongchai","doi":"10.54279/mijeec.v3i1.245073","DOIUrl":"https://doi.org/10.54279/mijeec.v3i1.245073","url":null,"abstract":"This study estimates the potential effects of climate change on GDP in the agriculture sector in the ASEAN region based on historic data from 1995-2018. An econometric panel model is applied to examine the impact of the changing climatic and non-climate variables AGDP. The empirical estimation results show that some significant and insignificant. Based on estimation results, if the policymaker is concerned about climate change actions, it helps more comprehensive risk decision-making, and policy exertions should be concentrated toward climate change to the total gross domestic product in the ASEAN region. Under projections of the future climate change, the simulation results reveal that the substantial change in GDP in agriculture in the ASEAN region arises due to the fluctuation of temperature and precipitation. For instance, GDP in the agriculture sector would be decreased by 0.27% to 0.90% in response to different scenarios over the century. Therefore, it is necessary to take immediate adaptive actions appropriately to mitigate the decrease in GDP in the agriculture sector in the ASEAN region.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"86 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74943314","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

Hybrid nano-coolants in automotive heat transfer – an updated report 混合纳米冷却剂在汽车传热-一个更新的报告

Maejo International Journal of Energy and Environmental Communication Pub Date : 2021-01-05 DOI: 10.54279/mijeec.v2i3.245040

Madderla Sandhya, D. Ramasamy, K. Sudhakar, K. Kadirgama, W.S.W. Harun

{"title":"Hybrid nano-coolants in automotive heat transfer – an updated report","authors":"Madderla Sandhya, D. Ramasamy, K. Sudhakar, K. Kadirgama, W.S.W. Harun","doi":"10.54279/mijeec.v2i3.245040","DOIUrl":"https://doi.org/10.54279/mijeec.v2i3.245040","url":null,"abstract":"Nano coolants have been attracting various researchers for efficient heat transfer agents. The efficacy of nanofluids as nano coolants is reviewed in the present study. The addition of nanoparticles to existing coolant fluids can enhance their heat transfer performance. Conventionally water and ethylene glycol are used as engine radiator coolants. The addition of ethylene glycol is needed to increase the boiling point of the water and decrease the freezing point. The convention also seems to be a crucial factor for heat exchanger performance. This is a requirement for vehicles that are being used under harsh weather conditions. Different types of nanoparticles used as nano coolants SiO2, TiO2, Al2O3, Cu/CuO, G/GO, CNT, and Hybrid nanoparticles, were extensively illustrated. Finally, nanofluids applications in the past decade were included. As many researchers have shown, they can be used to enhance radiator performance as well. In this review paper, studies of heat transfer performance of various Nanofluids as nano coolants conducted by researchers are studied. Finally, a conclusion is presented.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90188276","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

Spirogyra cultured in fishpond wastewater for biomass generation 在鱼塘废水中培养螺旋体用于生物质发电

Maejo International Journal of Energy and Environmental Communication Pub Date : 2020-12-31 DOI: 10.54279/mijeec.v2i3.245041

Tipsukhon Pimpimol, Burassakorn Tongmee, Padivarada Lomlai, Prsert Prasongpol, Niwooti Whangchai, Yuwalee Unpaprom, Rameshprabu Ramaraj

{"title":"Spirogyra cultured in fishpond wastewater for biomass generation","authors":"Tipsukhon Pimpimol, Burassakorn Tongmee, Padivarada Lomlai, Prsert Prasongpol, Niwooti Whangchai, Yuwalee Unpaprom, Rameshprabu Ramaraj","doi":"10.54279/mijeec.v2i3.245041","DOIUrl":"https://doi.org/10.54279/mijeec.v2i3.245041","url":null,"abstract":"Algae are aquatic organisms that can be found in a wide range of water bodies. Algae, a form of aquatic organism, is found in many different water types. Besides being relatively easy to maintain, algae are also numerous, making them a good choice for biomass production. The filamentous Spirogyra sp., a common green alga, tends to grow in freshwater. It is said that this macroalga has a wide variety of biotechnological applications. Research in this area highlights biomass's creation and builds on our understanding of the composition of macroalgae generated in fish farm wastewater. A study of Spirogyra in undisturbed fish farm wastewater was conducted in this study. Various algal species were evaluated for their qualities, including biomass yields and productivity, protein, fat, and carbohydrates. This investigation has confirmed that the nutrients in fish farm effluent are suitable for cultivating algal biomass. Protein, lipid, and carbohydrate levels in unaltered fish farm effluent were the highest for Spirogyra, with percentages of 19.03, 8.38, and 45.71%, respectively. Thus, it was the most suitable organism for various biomass-based applications and nutrient removal.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74811915","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

Exploration of fatty acid methyl esters (FAME) in cyanobacteria for a wide range of algae-based biofuels 探索蓝细菌中脂肪酸甲酯(FAME)用于广泛的藻类生物燃料

Maejo International Journal of Energy and Environmental Communication Pub Date : 2020-12-08 DOI: 10.54279/mijeec.v2i3.245039

Marlen Trejo, Glennise Faye C. Mejica, Nuttapong Saetang, Padivarada Lomlai

{"title":"Exploration of fatty acid methyl esters (FAME) in cyanobacteria for a wide range of algae-based biofuels","authors":"Marlen Trejo, Glennise Faye C. Mejica, Nuttapong Saetang, Padivarada Lomlai","doi":"10.54279/mijeec.v2i3.245039","DOIUrl":"https://doi.org/10.54279/mijeec.v2i3.245039","url":null,"abstract":"Due to high demand in the industry field, fuel supply has been reduced due to overconsumption. Algae served as the most promising biofuels; Cyanobacteria is preferred as a material for producing biodiesel based on the comparative advantage. Cyanobacteria can produce high lipids profiles that can be used to produce biofuel or biodiesel. The present investigation aimed to identify the application of Cyanobacteria that have proposed lipid standards for the algae biofuel industry. Three main objectives are involved in these experiments: to isolate and identify different strains of Cyanobacteria, convert the lipid from microalgae into biodiesel through transesterification, and estimate the proposed lipid standard of Cyanobacteria for the algae biofuel industry. The microalgae involve isolated using a plankton net. The water sample is brought into the lab for the identification of Cyanobacteria. After the Cyanobacteria are identified, the Cyanobacteria undergo mass cultivation to ensure the biomass is enough for lipid screening. After lipid content is identified, the lipid in the Cyanobacteria is extracted and further transesterification process. The GC analysis showed the variation of fatty acid in this cyanobacterium, a saturated, monounsaturated, and polyunsaturated fatty acid. The study also revealed that hexadecanoic acid, pentadecanoic acid and pentadecanoic acid was found in Oscillatoria sp. Lipid screening can determine the quantity of lipid present in the Cyanobacteria to estimate the lipid content for biofuel production.","PeriodicalId":18176,"journal":{"name":"Maejo International Journal of Energy and Environmental Communication","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73520369","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

The effects of nutrient stress on marine microalgae for enhancing the biodiesel production 营养胁迫对海洋微藻提高生物柴油产量的影响

Maejo International Journal of Energy and Environmental Communication Pub Date : 2020-12-02 DOI: 10.54279/mijeec.v2i3.245038

Marlen Trejo, Evelyn Zamudio Pérez

引用次数: 4