EnergyRN EM Feeds最新文献_第3页

Techno- Economics of a Hybrid Photovoltaic Wind Turbine 混合光伏风力发电机组的技术经济学研究

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3946169

C. P. Nazir

引用次数: 0

Influence of the Concentration Ratio on the Thermal and Economic Performance of Parabolic Trough Collectors with Double Glass Envelope 浓缩比对双层玻璃包膜抛物面槽集热器热经济性的影响

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3874502

Julian D. Osorio, A. Rivera-Alvarez

{"title":"Influence of the Concentration Ratio on the Thermal and Economic Performance of Parabolic Trough Collectors with Double Glass Envelope","authors":"Julian D. Osorio, A. Rivera-Alvarez","doi":"10.2139/ssrn.3874502","DOIUrl":"https://doi.org/10.2139/ssrn.3874502","url":null,"abstract":"The thermal and economic performance of parabolic trough collectors (PTCs) and PTCs with double glass envelope (DGE-PTCs) are analyzed in this work. A model including thermal and optical effects is developed to evaluate the efficiency of vacuum and air-filled DGE-PTCs, while an economic model based on two commercial PTCs (Sky Trough and Ultimate Trough collectors) was developed to assess the economic performance. The efficiency and thermal output per unit cost of the proposed DGE-PTCs are analyzed as a function of the concentration ratio and are respectively compared with the thermal and economic performance of traditional and commercial PTCs. The optimum concentration ratio for maximum thermal performance varies from 11.0 to 23.3 for operation temperatures ( [[EQUATION]] ) between 100°C and 400°C, while the optimum concentration ratio for maximum economic performance ranges between 28.9 and 33.2 for the SkyTrough and between 40.0 and 43.8 for the Ultimate Trough collector designs. The DGE-PTCs presents higher thermal and economic performance at high operating temperatures, which presents a valuable opportunity for implementation in new PTC designs pursuing higher operating temperatures to achieve superior thermal cycle efficiencies.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","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":"134284445","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

Combined Steam and Carbon Dioxide Reforming of Methane Using Nickel-Based Catalysts: Effects of Synthesis Method, Promoter, Space Velocity and Pressure 基于镍基催化剂的甲烷蒸汽-二氧化碳联合重整:合成方法、促进剂、空速和压力的影响

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3892174

Seong Seon Lim, J. Choi, Jong Tak Jang, Soung Hee Yun, Joung Ho Park, H. Jung, Y. Yoon

引用次数: 0

Research on Economic Effects of Energy Consumption Scale, Structure and Efficiency in China: Spatial Econometric Analysis at Provincial Scale 中国能源消费规模、结构与效率的经济效应研究——基于省域尺度的空间计量分析

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3903972

Yufan Jin, Wenxian Jiao

{"title":"Research on Economic Effects of Energy Consumption Scale, Structure and Efficiency in China: Spatial Econometric Analysis at Provincial Scale","authors":"Yufan Jin, Wenxian Jiao","doi":"10.2139/ssrn.3903972","DOIUrl":"https://doi.org/10.2139/ssrn.3903972","url":null,"abstract":"The exploration of economic effects of energy consumption scale, structure, and efficiency is instructive to the optimization and adjustment of energy policies, as well as the promotion of sustainable development. Existing studies seldom take the economic effects of energy consumption scale, structure, and efficiency into consideration at once. Most of them ignore the spatial dependence between energy consumption and economic growth. This paper explores the spatial agglomeration and spatial dependence of China’s provincial energy consumption scale, structure, and efficiency on economic growth from 2000 to 2017 through the spatial econometric analysis method. The study found that there are no spatial agglomeration characteristics between China’s economic level and energy consumption scale. But economic level showed negative spatial agglomerations with energy structure and positive spatial agglomerations with consumption efficiency, respectively. The expansion of energy consumption scales can promote local economic growth, but it has greater restrictive effects on the economic growth of adjacent regions. The increasing proportion of clean energy consumption can promote the economic growth of neighboring regions with positive spatial spillover effects, and the improvement of energy efficiency can enhance the economic growth in both local and adjacent regions.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"1 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":"128719615","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

DVR Proto-Type Setup for Voltage DIP and Voltage Swell Problems 电压DIP和电压膨胀问题的DVR原型设置

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3932839

G. Devadasu, S. Muthubalaji, N. Anand, Shaik Mohammad Rafee

{"title":"DVR Proto-Type Setup for Voltage DIP and Voltage Swell Problems","authors":"G. Devadasu, S. Muthubalaji, N. Anand, Shaik Mohammad Rafee","doi":"10.2139/ssrn.3932839","DOIUrl":"https://doi.org/10.2139/ssrn.3932839","url":null,"abstract":"Power quality issues have been pulling in the eye of investigates for decade. The nearness of voltage unsettling influences at the purpose of normal coupling brings about glitch of delicate modern instruments, which ends up being matrix part disappointments. Although there are many strategies in practice, the term custom power relates to the utilization of energy hardware controller in an appropriate framework, particularly to manage different power quality issues. Now the custom power devices play a vital role in the field of power quality mitigation. The presence of sensitive loads lead to the power quality issues like sag and swell but it is inevitable. DVR is one of the popular and efficient custom power devices most suitable distribution network to mitigate the voltage dip and swell. Fuzzy based PI control is incorporated in this paper. The main salient feature is the use of linguistic variables rather than numerical variables. This control method depends on human capacity to comprehend the frameworks conduct and depends on quality control rules. An experimental investigation on the mitigation of sag and swell by using three phase dynamic voltage restorer (DVR) is proposed in this paper. It is observed that the compensating capability of the DVR is somewhat lagged due the finite voltage dip under particular loading. A Fuzzy based PI scheme is therefore proposed to improve the voltage compensation. The Simulation result is appraised with experimental results and it presented it witnessed the effectiveness of the control strategy.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"1 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":"129171928","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

Significance of Occupancy Patterns and Habitual Household Adaptive Behaviour on Home-Energy Performance of Post-War Social-Housing Estate in the South‑Eastern Mediterranean Climate 东南地中海气候下战后社会住房的居住模式和习惯家庭适应行为对家庭能源绩效的意义

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3870970

B. Ozarisoy, H. Altan

{"title":"Significance of Occupancy Patterns and Habitual Household Adaptive Behaviour on Home-Energy Performance of Post-War Social-Housing Estate in the South‑Eastern Mediterranean Climate","authors":"B. Ozarisoy, H. Altan","doi":"10.2139/ssrn.3870970","DOIUrl":"https://doi.org/10.2139/ssrn.3870970","url":null,"abstract":"The concept of retrofitting is an important milestone in the evolutionary development toward upgrading the energy efficiency of residential buildings. Various policy instruments have been introduced to retrofit existing social housing stock, many of which have failed to acknowledge the significant role of occupancy patterns in energy use. The aims of this empirical study are to statistically determine occupant behavioural patterns associated with heating and cooling energy consumption and to identify household socio-demographic characteristics that contribute to the development of energy-user profiles. This article presents the results of a questionnaire-based survey undertaken during August of 2018 with 118 households in base-case representative residential tower blocks in the South-Eastern Europe. The survey revealed a positive strong correlation between weekday heating and cooling consumption patterns (r = 0.588, p < 0.01). Conversely, there was negative strong correlation between household occupation (r = -0.621, p < 0.01 and window-opening patterns. These findings will lead to a greater understanding of how occupancy patterns can predict household energy use in decision-making processes related to energy-efficiency upgrades in dwellings. By exploring some of the core lessons learned from the survey, this research seeks to both inform and improve uptake-and-delivery of future retrofitting initiatives in energy policies.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"298 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":"115235372","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

Exploring Nonlinearity on the CO2 Emissions, Economic Production and Energy Use Nexus: A Causal Discovery Approach 探索二氧化碳排放、经济生产和能源使用关系的非线性:因果发现方法

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3893534

P. Addo, Christelle Manibialoa, Florent McIsaac

引用次数: 5

Study on Dynamic Model and Dynamic Characteristics of Solar Field of 50 MW Trough Solar Thermal Power Generation Plant 50mw槽式光热电站太阳能场动态模型及动态特性研究

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3885544

Xu Ershu, Si Lengge, Tang Jjianfang, Dong Jun, Zhao Dongming, Xu Hui, Z. Yanan, Yu Gang

{"title":"Study on Dynamic Model and Dynamic Characteristics of Solar Field of 50 MW Trough Solar Thermal Power Generation Plant","authors":"Xu Ershu, Si Lengge, Tang Jjianfang, Dong Jun, Zhao Dongming, Xu Hui, Z. Yanan, Yu Gang","doi":"10.2139/ssrn.3885544","DOIUrl":"https://doi.org/10.2139/ssrn.3885544","url":null,"abstract":"Operation control of parabolic trough solar thermal power generation system is a difficult issue in the operation of the system. The solar field of the first 50 MW trough solar thermal demonstration power plant in China is taken as the research object. Based on the topological structure and working principle of the solar field and the basic laws of optics and thermodynamics, the hydrodynamic calculation model and the heat transfer dynamic model of the multiple parallel heat collecting loops are developed on the real-time dynamic simulation platform iSimu. Using the parallel computing capabilities of the platform iSimu, the full working condition simulation of the solar field is realized. On this basis, the step disturbance experiments of direct normal irradiance (DNI), heat transfer oil’s flow and heat transfer oil’s temperature at the inlet of the solar field are carried out. In addition, the dynamic response curves of step disturbance and the inertia time constant of the heat collecting loops are obtained. The conclusions of this paper have important guiding significance for the operation control strategy formulation and system optimization design of trough solar thermal power generation system.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"25 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":"133090001","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 Fish Scale Derived Ferromagnetic Heterogeneous Biocatalyst (Α-Fe2O3-Β-Ca3(PO4)2) for Efficient Transesterification of Waste Silkworm Pupal Lipids into Biodiesel 废鱼鳞衍生的铁磁非均相生物催化剂(Α-Fe2O3-Β-Ca3(PO4)2)用于废蚕蛹脂高效酯交换制备生物柴油

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3940149

K. Jaiswal, A. Ramaswamy

{"title":"Waste Fish Scale Derived Ferromagnetic Heterogeneous Biocatalyst (Α-Fe2O3-Β-Ca3(PO4)2) for Efficient Transesterification of Waste Silkworm Pupal Lipids into Biodiesel","authors":"K. Jaiswal, A. Ramaswamy","doi":"10.2139/ssrn.3940149","DOIUrl":"https://doi.org/10.2139/ssrn.3940149","url":null,"abstract":"This paper reports an eco-friendly, cost-effective facile route to prepare bio-derived heterogeneous magnetic biocatalysts from the waste fish scale via thermal treatment and used for efficient transesterification to produce biodiesel. The hydroxyapatite of fish scales was impregnated with the varied concentrations (10–30 wt. %) of Fe2+ precursor (FeCl2.4H2O) through the wet impregnation method and transformed into α-Fe2O3-β-TCP via calcination at 700–1000 °C. The transformation of hydroxyapatite to β-Ca3(PO4)2 impregnated with α-Fe2O3 confirmed through XRD and Raman analysis. The FTIR spectra of the prepared sample α-Fe2O3-β-TCP support its structural and chemical composition. The SEM images confirm the presence of α-Fe2O3 in the waste fish scales derived catalysts. The magnetic studies revealed the soft ferromagnetic behavior for the optimized catalysts Fe-FSC-30 with saturation magnetization 0.59 emu/g at 300 K. The magnetic fish scale catalysts was used for the transesterification of silkworm pupa lipids. The FTIR and 1H-NMR spectroscopy recognized the conversion of silkworm pupa lipids into biodiesel. The transesterification efficiency of heterogeneous magnetic biocatalysts is estimated to be ~90 % via 1H-NMR. The GC-MS identified the presence of the main constituents of SPL-biodiesel. The study demonstrated waste fish scale-derived low-cost magnetic catalysts for efficient transesterification of lipids for biodiesel production.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"42 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":"127674959","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

Design and Operation Strategy of Micro Organic Rankine Cycle with Zeotropic Binary Mixtures for Low Grade Geothermal Energy 低品位地热能双组分共沸有机朗肯循环设计与运行策略

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3889207

Ryosuke Akimoto, M. Nakaiwa, Keigo Matsuda

引用次数: 0