Energy Environment and Storage最新文献

Theoretical Study of The Use of Lfscs in Terms of Energy for Textile Factories: The Example of Saint Louis in Senegal 纺织工厂在能源方面使用Lfscs的理论研究:以塞内加尔圣路易斯市为例

Energy Environment and Storage Pub Date : 2023-05-30 DOI: 10.52924/pibx6890

Issa Sy, İ. Üçgül

引用次数: 0

A Comparison of Energy Use in Conventional and Organic Olive Production in Kaz Mountains, Çanakkale, Türkiye 和子山地区传统橄榄生产与有机橄榄生产的能源利用比较，Çanakkale, trkiye

Energy Environment and Storage Pub Date : 2023-05-30 DOI: 10.52924/xehc9087

Hatice Dal, Evrim Karaçetin

{"title":"A Comparison of Energy Use in Conventional and Organic Olive Production in Kaz Mountains, Çanakkale, Türkiye","authors":"Hatice Dal, Evrim Karaçetin","doi":"10.52924/xehc9087","DOIUrl":"https://doi.org/10.52924/xehc9087","url":null,"abstract":"Agriculture is one of the biggest sectors and energy consumption during agricultural production causes a release of 11 % of greenhouse gasses leading to climate change. Since after the industrialization of agriculture, farming systems shifted towards high-intensity farming, yet in Türkiye, traditional farming methods continue. In this study we compare the energy efficiency of organic vs. conventional olive groves in Kaz Mountains, Türkiye. 71 farmers were interviewed face-to-face in two subsequent years and the energy efficiency of the olive production process was calculated as the ratio of the energy spent during farming to the energy content of the fruit. Fuel use was calculated under the direct energy input, whereas production processes of fertilizer, agricultural machinery, maintenance and repair, human and animal labor were calculated under indirect energy inputs. Here we show that conventional olive production was less energy efficient due to the high indirect energy input during the production of synthetic fertilizers. There was no relationship between the energy input and yield. This study shows that by improving energy efficiency, the technical performance of agricultural systems can be increased and their negative impact on the environment can be reduced.","PeriodicalId":262431,"journal":{"name":"Energy Environment and Storage","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132104758","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

Determination of a New Performance Indicator for the Assessment of Stand-Alone PV System 独立光伏系统评估新性能指标的确定

Energy Environment and Storage Pub Date : 2023-05-30 DOI: 10.52924/qbmk2848

Francis-Daniel Menga, Jorel landry Owona, Oumarou DJOUBAIROU OUMAROU

{"title":"Determination of a New Performance Indicator for the Assessment of Stand-Alone PV System","authors":"Francis-Daniel Menga, Jorel landry Owona, Oumarou DJOUBAIROU OUMAROU","doi":"10.52924/qbmk2848","DOIUrl":"https://doi.org/10.52924/qbmk2848","url":null,"abstract":"The use of stand-alone PV systems (SAPV) must be efficient and profitable for a better integration of solar energy in the global energy mix. However, the performance indicators that allow the evaluation of SAPV systems do not clearly inform us about the actual level of use of their sized and installed capacity. This article aims to determine a new performance indicator, called the theoretical power factor (TPF) by an original method based on the modelling of the SAPV system in the form of a matrix equation. The resolution of this matrix equation, makes it possible to bring out the reactive energy of the system during operation. A case study is presented and scenario I represents the case where the main elements are all assumed to operate at their rated capacity. scenario II represents the case were the rated capacity of storage system is reduced of 40%, scenario III represents the case were the rated current capacity of charge controller is reduced of 40%, and finally scenario IV represents the case were the rated power capacity of inverter is also reduced of 40%. The results obtained after implementation in the Spyder environment (python 5.1) show the effectiveness of TPF in the performance evaluation of SAPV systems. And also show how the TPF is substantially related to the capacity of each main element of the system. This being proved by the results obtained after the simulation of the four scenarios mentioned above. One can observe an increase in TPF of 0.1% in Scenario II during the period of low irradiance, and no change in TPF for the other scenarios in the same period. During the period of high irradiance, an increase in TPF of 17.9% is observed in scenario II and a decrease in TPF of 15.4% and 1.2% respectively in scenarios III and IV.","PeriodicalId":262431,"journal":{"name":"Energy Environment and Storage","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133466626","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

Optimization of the Effects of Binary Hybrid Nanofluid Synthesis Parameters on the Thermal and Hydraulic Characteristics 二元杂化纳米流体合成参数对热液特性影响的优化研究

Energy Environment and Storage Pub Date : 2023-05-30 DOI: 10.52924/ywfm2644

O. Keklikcioglu, V. Ozceyhan

{"title":"Optimization of the Effects of Binary Hybrid Nanofluid Synthesis Parameters on the Thermal and Hydraulic Characteristics","authors":"O. Keklikcioglu, V. Ozceyhan","doi":"10.52924/ywfm2644","DOIUrl":"https://doi.org/10.52924/ywfm2644","url":null,"abstract":"Due to the growing interest in hybrid nanofluids, researchers have been primarily focused to obtain the thermophysical properties of hybrid nanofluids. Several parameters such as temperature, volume or weight fractions, nanoparticle types and shapes affected the thermophysical properties of nanofluids. Accordingly, the optimization in thermal conductivity and viscosity of nanofluids obtained by mixing binary nanocomposite particles GnP-Fe3O4 in an ethylene glycol-water base fluid with a mixing ratio of 20-80 % was investigated in this study. The Taguchi approach is used for single-objective optimization and the significance values of the synthesis parameters were determined using the ANOVA technique. Five different factors, including mechanical strring time, ultrasonic mixing time and power, surfactant mixing ratio, and nanofluid weight ratio, were optimized at three different levels during the synthesis of hybrid nanofluids. The experimental L27(35) orthogonal array trial was built in order to carry out the optimization. According to the results, mechanical striring time was found to have the least impact on both thermophysical parameters, whereas ultrasonic mixing power, nanofluid weight ratio, and ultrasonic mixing time were also ranked from low to high impact. The usage of surfactant was shown to be the parameter that had the greatest impact, with rates of 63.57% and 65.31%, on thermal conductivity and viscosity, respectively.","PeriodicalId":262431,"journal":{"name":"Energy Environment and Storage","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114346001","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

Evaluation of Conducting Properties of Biopolymer Electrolyte K-Carrageenan with The Effect of Three Different Ammonium Salts 三种不同铵盐作用下生物聚合物电解质k -卡拉胶导电性能的评价

Energy Environment and Storage Pub Date : 2023-05-30 DOI: 10.52924/ytmk4887

M. Nithya

引用次数: 0

Deep Eutectic Solvents for Liquid-Liquid Extraction-Denitrification 液-液萃取-脱硝用深共晶溶剂

Energy Environment and Storage Pub Date : 2023-05-30 DOI: 10.52924/sgaw3909

Sayad Niftullayeva, Y. Mamedova, I. Mamedov

引用次数: 0

Hydrogeochemical Characteristics and Groundwater Quality Assessment of a Relatively- Pristine Agricultural Basin (Palas Basin) 相对原始农业盆地(Palas盆地)水文地球化学特征及地下水水质评价

Energy Environment and Storage Pub Date : 2023-01-26 DOI: 10.52924/qxot934

Ömer Karadeniz, Filiz Dadaşer Çelik

{"title":"Hydrogeochemical Characteristics and Groundwater Quality Assessment of a Relatively- Pristine Agricultural Basin (Palas Basin)","authors":"Ömer Karadeniz, Filiz Dadaşer Çelik","doi":"10.52924/qxot934","DOIUrl":"https://doi.org/10.52924/qxot934","url":null,"abstract":"This study investigates the spatial and temporal changes in groundwater levels and quality in the Palas Basin, a relatively-pristine semi-arid agricultural basin in T . Although groundwater is solely used as irrigation and drinking potable water resource throughout the basin, measurements regarding the dynamics and quality of groundwater were quite rare. The analyses were based on data collected from 12 water quality monitoring wells and 15 groundwater level monitoring wells during June 2019-May 2020. Water samples were analyzed for pH, electrical conductivity, temperature, nitrate, nitrite, ammonium, total nitrogen, total hardness, alkalinity, chloride,sulfate, phosphate, total organic carbon, calcium, magnesium, sodium, potassium, and arsenic. Data analyses included hydrogeochemical analysis and multivariate statistical analysis such as principal component analysis and cluster analyses. Results showed that water quality in the basin is mostly controlled by natural factors, however, anthropogenic impacts from agriculture activities were apparent in some regions. The basin shows significant changes in water levels throughout the year due to irrigation activities. The groundwater quality was classified as either Ca-Mg-HCO3and Ca-Mg-SO4 type. In the majority of the basin, water quality was suitable for irrigation and drinking water uses, however, a few sampling sites had very high electrical conductivity, sulfate, nitrate, and arsenic levels. The high levels of nitrates were detected in areas, where agriculture is intense, indicating that agricultural activities might be affecting water quality. High sulfate, electrical conductivity, and arsenic levels could be related to the hydrogeological setting of the basin. This study showed that agricultural activities and natural factors were effective on the hydrogeochemical characteristics of the Palas Basin.","PeriodicalId":262431,"journal":{"name":"Energy Environment and Storage","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129154079","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

Assessment of CO and NO2 pollutants concentration in the parking area and its relation to the occupancy percentage in the city of Makassar, Indonesia 印度尼西亚望加锡市停车场CO和NO2污染物浓度评价及其与入住率的关系

Energy Environment and Storage Pub Date : 2023-01-26 DOI: 10.52924/rmpy7750

Sattar Yunus, Anugrah Yasin

{"title":"Assessment of CO and NO2 pollutants concentration in the parking area and its relation to the occupancy percentage in the city of Makassar, Indonesia","authors":"Sattar Yunus, Anugrah Yasin","doi":"10.52924/rmpy7750","DOIUrl":"https://doi.org/10.52924/rmpy7750","url":null,"abstract":"One of the sources of air pollution is exhaust emissions from vehicles during transportation activities. Due to the lack of parking spaces and the increase of the vehicles, many people park on the main roads, causing congestion on the side of the main roads. .When the engine is running and the vehicle is on stationed the engine's power is not used to turn the wheels, the combustion quality of the vehicle's engine is not so perfect and the exhaust gas is concentrated on a part of the road. To do, affects the ambient air quality of the location. The purpose of this study was to measure CO and NO2 concentrations using the Impinger Air Sampler. Measurements were taken on the road bodies used for vehicle parking at four locations in Makassar city: Sombaopu street, Nusantara street, Mesjid Raya street, and Jenderal Sudirman street. The data analysis used is a simple linear regression statistic to calculate occupancy. The analytical result obtained for the effect on occupancy and CO concentration was R2= 0.51/51%, p<0.001, we can conclude that the effect of occupancy on CO concentration is significant. We can then conclude that at a value of R2=0.64, p<0.001, the contribution of occupancy to changes in NO2 concentration is also significant. we conclude that the contribution of this predictive model is 68%. Occupancy has a significant impact on CO and NO2 concentrations in curbside parking areas.","PeriodicalId":262431,"journal":{"name":"Energy Environment and Storage","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129930042","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

Experimental Investigation of the Effect of Acetone Additive to Diesel Fuel on Engine Performance and Exhaust Emissions at Partial Loads 丙酮添加剂对柴油机部分负荷性能和废气排放影响的实验研究

Energy Environment and Storage Pub Date : 2023-01-26 DOI: 10.52924/wqjr9374

Ahmet Duhan Coşkun, Volkan Sabri Kül, S. Akansu

{"title":"Experimental Investigation of the Effect of Acetone Additive to Diesel Fuel on Engine Performance and Exhaust Emissions at Partial Loads","authors":"Ahmet Duhan Coşkun, Volkan Sabri Kül, S. Akansu","doi":"10.52924/wqjr9374","DOIUrl":"https://doi.org/10.52924/wqjr9374","url":null,"abstract":"In this study, it is aimed to gain good characteristics that can directly affect daily life with more environmentally friendly, economical, and performance fuels. For these purposes, acetone has been added to the fuel. Since acetone has a high vapor pressure, it is aimed to increase engine performance by taking advantage of its volatility. It is thought that emissions will also improve with increased engine performance. The experiments were carried out using a heavy-duty engine with a displacement of 11670 cc. Engine performance and emission values were investigated at 100, 200, and 300 Nm partial loads and at 600 rpm constant engine speed by adding 5% and 10% acetone to diesel fuel. The results were compared with pure diesel fuel. Compared to the pure diesel fuel, the BTE value of A5D95 fuel was observed to be 3.28% and 2.60% better, respectively, under 100 and 200 Nm load, while the BTE value of A10D90 fuel was 0.23% and 0.05% worse. Compared to the pure diesel fuel, the BTE value of A5D95 fuel was observed to be 3.28% and 2.60% better, respectively, under 100 and 200 Nm load, while the BTE value of A10D90 fuel was 0.23% and 0.05% worse. Since there was an unexpected decrease in the BTE value of pure diesel under 300 Nm load, only A5D95 and A10D90 fuels were compared at this load. It was found that the BTE value of A5D95 fuel under 300 Nm load was 0.65% higher than A10D90 fuel. While 10% acetone additive A10D90 fuel could not have a positive effect on efficiency, it was determined that A5D95 fuel with 5% acetone additive was more efficient than other fuel types at all loads. When the emission rates of D100, A5D95, and A10D90 fuels are evaluated according to the power they produce under 100, 200, and 300 Nm loads, the CO emission rate of A5D95 fuel is less than that of pure diesel at other loads except 100 Nm load. However, the NOx ratio was higher at all loads. These results support the higher efficiency of A5D95 fuel compared to pure diesel. Other results are discussed in detail in section 3.","PeriodicalId":262431,"journal":{"name":"Energy Environment and Storage","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131340787","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

Testing of Some Ionic Liquids at the Synthesis of Biodiesel 几种离子液体在生物柴油合成中的测试

Energy Environment and Storage Pub Date : 2023-01-26 DOI: 10.52924/pgzs3445

I. Mamedov, M. Musazade, Hurupari Rustamova, Ofelia Javadova, N. Azimova

引用次数: 0