EnergyRN EM Feeds最新文献_第4页

Performance Study of a Mimo-Shaped Cooling Plate in Pemfc Stack for Heat Transfer Enhancement Pemfc堆中mimo型冷却板强化传热性能研究

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3893531

Xi Chen, Qinxiao Liu, Ye Fang, Lingxuan He, Taiming Huang, Yan Zhang, Z. Wan, Xiao-dong Wang

引用次数: 0

Maximizing Fucoxanthin Production in Odontella aurita by Optimizing the Ratio of Red and Blue LEDs in an Auto-Controlled Internally Illuminated Photobioreactor 通过优化自动控制内照明光生物反应器中红蓝led的比例，最大限度地提高褐藻黄素的产量

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3933559

H. Zhang, Pengyan Gong, Qinghua Cai, Chengwu Zhang, Baoyan Gao

{"title":"Maximizing Fucoxanthin Production in Odontella aurita by Optimizing the Ratio of Red and Blue LEDs in an Auto-Controlled Internally Illuminated Photobioreactor","authors":"H. Zhang, Pengyan Gong, Qinghua Cai, Chengwu Zhang, Baoyan Gao","doi":"10.2139/ssrn.3933559","DOIUrl":"https://doi.org/10.2139/ssrn.3933559","url":null,"abstract":"Fucoxanthin has multiple beneficial effects on human health. However, an efficient cultivation strategy for hyper-production of microalgae-based fucoxanthin has been seldom achieved. Here, an auto-controlled photobioreactor (PBR) installed internal LEDs illumination with adjustable spectra ratio was firstly used to culture Odontella aurita. The results showed that red light (RL) was more suitable for cell growth and fucoxanthin accumulation than blue light (BL) and white light (WL). The biomass and fucoxanthin production were further promoted by optimizing the ratios of RL and BL, with 8:2 giving the highest productivities of 570 and 9.41 mg L-1 d-1, respectively, which is the highest fucoxanthin productivity ever reported under photoautotrophic cultivation. Pilot-scale cultivation demonstrated its promising feasibility in commercial fucoxanthin production. Our study represents a pioneering work of harnessing the PBR with internal illumination for hyper-production of microalgae-based fucoxanthin, and provides feasible strategies for high-efficient production of other value-added products in related species/strains.","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":"121956882","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

Trade Openness and Energy Consumption in Sub-Saharan African Countries Economic: Evidence from Disaggregated Data 撒哈拉以南非洲国家的贸易开放与能源消费经济:来自分类数据的证据

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3904607

N. Odhiambo

{"title":"Trade Openness and Energy Consumption in Sub-Saharan African Countries Economic: Evidence from Disaggregated Data","authors":"N. Odhiambo","doi":"10.2139/ssrn.3904607","DOIUrl":"https://doi.org/10.2139/ssrn.3904607","url":null,"abstract":"In this paper, the causal relationship between trade openness and energy consumption in sub-Saharan African (SSA) countries during the period 1980-2016 is examined. Trade openness is disaggregated into three components, namely total export plus import of goods and services as a % of GDP (Open 1), total export of goods and services as a % of GDP (Open 2) and total import of goods and services as a % of GDP (Open 3). In order to account for the omission-of-variable bias, economic growth and urbanisation are incorporated as intermittent variables between the various components of trade openness and energy consumption, thereby creating a multivariate system of equations. For robustness check, the study uses first- and second-generation unit root tests to examine the order of integration. In addition, the study uses three panel cointegration tests, namely that of Westerlund (2005), Pedroni (2004) and Kao (1999). Using the panel Granger-causality test, the study found that there is a unidirectional causal flow from trade openness to energy consumption, but only when the total exports of goods and services as a % of GDP (Open 2) is used as a proxy for trade openness. When Open 1 and Open 3 are used as proxies, no causality is found to exist between trade openness and energy consumption in either direction, irrespective of whether the causality test is conducted in the short-run or in the long run. This finding, though contrary to some of the previous studies, is not surprising given the disparity in trade balance and energy challenges facing many SSA countries.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"60 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":"114347599","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

Quantitative Characterization of Petrological and Pore Throat Parameters of Conventional and Unconventional Sandstone and Carbonate Reservoirs Using Image Modelling 基于图像建模的常规与非常规砂岩及碳酸盐岩储层岩石学及孔喉参数定量表征

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3940127

Bo Jiu, Wenhui Huang, Ruilin Hao, Yuan Li, Nana Mu, W. Ao, Kun Yuan

{"title":"Quantitative Characterization of Petrological and Pore Throat Parameters of Conventional and Unconventional Sandstone and Carbonate Reservoirs Using Image Modelling","authors":"Bo Jiu, Wenhui Huang, Ruilin Hao, Yuan Li, Nana Mu, W. Ao, Kun Yuan","doi":"10.2139/ssrn.3940127","DOIUrl":"https://doi.org/10.2139/ssrn.3940127","url":null,"abstract":"Pore structure plays an important role in the exploration and development of both conventional and unconventional reservoirs. An algorithm using MATLAB is established to characterize the particle sizes, porosity, microscale and nanoscale pore throat radius, and cement contents in conventional and unconventional reservoirs. Samples from Carboniferous tight sandstone reservoirs and Ordovician carbonate reservoirs in the southeastern Ordos Basin are selected to explore the applicability of this algorithm. The quantitative analysis data obtained from images with MATLAB are compared high-pressure mercury intrusion and X-ray diffraction experimental results, and corresponding error curve and fitting curve equations are established. These results show that the correlation coefficients (R2) of the porosity, particle size and calcite cement content of the sandstone reservoirs were 0.9216, 0.7105 and 0.8430, respectively. The calculated porosities of the three main carbonate reservoir types, namely, carbonate reservoirs with intergranular pores, dissolved pores and bioclastic pores, fit the measured data well, with R2 values of 0.9515, 0.9285, and 0.9579. This quantitative analysis workflow provides a new characterization method for reservoir pore throat parameters using a single thin section image and MATLAB and is applicable to not only conventional reservoirs but also tight sandstone and carbonate reservoirs with intergranular and dissolution pores.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"52 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":"134006524","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

Understanding Catalytic CO2 Reforming of CH4: Effect of Basic Support (Dolomite, Talc and Alkaline Sludge) on NiO-Based Catalyst 了解CH4催化CO2重整:碱性载体(白云石、滑石和碱性污泥)对镍基催化剂的影响

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3900950

Mohd Razali Shamsuddin, Salma Samidin, N. Asikin-Mijan, M. I. Saiman, T. S. Marliza, M. Yarmo, Y. Taufiq-Yap

{"title":"Understanding Catalytic CO2 Reforming of CH4: Effect of Basic Support (Dolomite, Talc and Alkaline Sludge) on NiO-Based Catalyst","authors":"Mohd Razali Shamsuddin, Salma Samidin, N. Asikin-Mijan, M. I. Saiman, T. S. Marliza, M. Yarmo, Y. Taufiq-Yap","doi":"10.2139/ssrn.3900950","DOIUrl":"https://doi.org/10.2139/ssrn.3900950","url":null,"abstract":"Supports material contain Mg and/or Ca influence the reactivity of NiO-based catalysts. Thus, the development of NiO/Dolomite, NiO/Talc and NiO/AS successfully synthesized by the simple wet-impregnation method. The characterization of prepared catalysts by XRD and N2 adsorption-desorption analysis reveals that the contained species in each catalyst greatly affected the textural properties of catalysts such as BET surface area, porosity, crystallite, and particle size. Thus, TPR-H2 displayed reducability of active metal influence by physical properties. Meanwhile, basic sides of prepared catalysts contributed by O2- ion attributed by Mg and/or Ca in the support material. Thus, the apparent Ea of NiO/Dolomite, NiO/Talc and NiO/AS are +115.47, +114.90 and +135.21 kJ mol-1 respectively. In addition, the formation of carbon is strongly affected by crystallite and particle sizes together with the dispersion of NiO species. In conclusion, the catalytic performance of NiO-based catalyst much influence by the physicochemical properties of catalyst which contributed by Mg and/or Ca contain in the support’s material.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"143 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":"131995865","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

Research on Design Method of Half-Wavelength Tuning Net 半波长调谐网设计方法研究

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3920297

Yongxi Zhao, Bin Li, Huaxin Wang, Jian Wang

引用次数: 0

The Calculation and Prediction of China's Energy Rebound Effect Based on the LMDI and SVAR Models 基于LMDI和SVAR模型的中国能源回弹效应计算与预测

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3935553

Wen-Jing Gui, Lan Lan

{"title":"The Calculation and Prediction of China's Energy Rebound Effect Based on the LMDI and SVAR Models","authors":"Wen-Jing Gui, Lan Lan","doi":"10.2139/ssrn.3935553","DOIUrl":"https://doi.org/10.2139/ssrn.3935553","url":null,"abstract":"The energy rebound effect refers to the lower-than-expected energy savings caused by energy efficiency improvement. We used the LMDI to measure China's rebound effect from 2004 to 2018 and the SVAR model to predict it based on energy consumption data from 2010 to 2019. Four ICA methods accomplish the parameter recognition of the model. The conclusions were: (1) The energy rebound effect was characterized by \"U\"-type, with 86% left vertex in 2005 and 82% right vertex in 2018. The energy-saving effect slowly rose and then sharply decreased. (2) With the benchmark SVAR model using dcov, ngml, FastICA, and LiNGAM methods, the mean of rebound effect prediction results are 103.33%, 104.67%, 105.33%, and 105.67% in 1, 2, 4, and 6 years, respectively. However, it indicates that energy efficiency improvement results in energy consumption which is inconsistent with China's facts. (3) The expanded SVAR model, which adds the variables of economic structure and energy quality, still has an upward trend of 1, 2, 4, and 6 years, with an average of 79%, 85.33%, 87%, and 87.67% for the four methods which is more reasonable. However, the energy-saving effect still tends to decrease with improved energy efficiency, which needs further attention.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"85 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":"124648193","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

Analysis of Current Mexican Power Sector Public Policies for Achieving the Proposed 2050 NDCs 当前墨西哥电力部门实现2050年国家自主贡献的公共政策分析

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3950124

Manuel Martínez, D. Toledo-Vázquez, L. F. Bañuelos-Ruiz, C.D. Leal-Fulgencio, J.C. Castro-Dominguez, D.K. Becerra-Paniagua, A. Hernández-Granados, K. Cedano-Villavicencio

{"title":"Analysis of Current Mexican Power Sector Public Policies for Achieving the Proposed 2050 NDCs","authors":"Manuel Martínez, D. Toledo-Vázquez, L. F. Bañuelos-Ruiz, C.D. Leal-Fulgencio, J.C. Castro-Dominguez, D.K. Becerra-Paniagua, A. Hernández-Granados, K. Cedano-Villavicencio","doi":"10.2139/ssrn.3950124","DOIUrl":"https://doi.org/10.2139/ssrn.3950124","url":null,"abstract":"A prospective analysis of the Mexican Power system has been carried out and the possibilities for complying with the commitments adopted at the Paris Agreement in the National Climate Change Strategy of the General Law for Climate Change are presented. The LEAP scenario modelling software has been used, with only economic optimisation, to analyse 4 proposed scenarios to 2050: Trend, which only looks at the growth rate of GDP and population, along with the country's proven potential for renewable resources; Sovereignty, which considers the trend of installation of renewable technologies of the current Mexican government (2018-2024); Market, which does the same as the previous one but for the policies of the past administration, and Sustainable, which together with GDP and population growth takes into account the possible potential of national renewable resources. The research question was: Is there a long-term Energy Policy for the Mexican Power Sector to accomplish its NDCs? The study concluded that the best scenario is Sustainable, showing that the possible potential of the country's renewable resources has the capacity to meet the Mexican commitments adopted in the Paris Agreement, if techno-economic renewable technologies and electricity storage systems are used.","PeriodicalId":163818,"journal":{"name":"EnergyRN EM Feeds","volume":"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":"132942508","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

Brazilian Ocean Thermal Energy Park and its Sites: Definitions and Feasibility of Thermal Energy Conversion in the Blue Amazon 巴西海洋热能公园及其站点:蓝色亚马逊河热能转换的定义和可行性

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3947580

Roberto Valente de Souza, Elisa Leão L Fernandes, J. Azevedo, Rafaella Corrêa Martins, Mariana dos Santos Passos

{"title":"Brazilian Ocean Thermal Energy Park and its Sites: Definitions and Feasibility of Thermal Energy Conversion in the Blue Amazon","authors":"Roberto Valente de Souza, Elisa Leão L Fernandes, J. Azevedo, Rafaella Corrêa Martins, Mariana dos Santos Passos","doi":"10.2139/ssrn.3947580","DOIUrl":"https://doi.org/10.2139/ssrn.3947580","url":null,"abstract":"The search for energy alternatives is becoming more important in the strategic development of countries, as rapid world growth the demand of energy. The thermal energy in the oceans, the highest exploitation potential, is renewable and has the ability to remove heat from the oceans and $ CO_2 $ from the atmosphere. In this study, we used the temperature results from the numerical model HYCOM for resoucers evaluation of Oceanic Thermal Energy Conversion (OTEC). Based on these data, the daily, monthly, seasonal and annual averages were calculated, allowing to evaluate the thermal gradient variability in the Blue Amazon. Were obteined the definition of three thermal energy sites, their viability and operational of his conversion by teorical OTEC plant throughout the period of the Julian average. The northern region stands out with the higher energy potential between the surface and a depth range of $600m$ $leq$ $z$ $geq$ $1000m$, hence, we conclude that the Brazilian Ocean Thermal Energy Park (OTEP) is technically feasible for the operations of OTEC plants. However, looking at the economic perspective, the results show that only portions closest to the continental shelf, have the best capacity to operate in the face of international energy market fluctuations.","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":"129122296","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

Optimal Planning and Operational Scheduling of Micro Energy Grids 微电网优化规划与运行调度

EnergyRN EM Feeds Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3874484

A. Eldessouky, A. Fahmy

引用次数: 0