The Parameter Analysis and Performance Comparison of Solar Air Collector

With the social progress and the development of the world economy, the contradiction between energy demand and supply is increasingly outstanding，so saving energy is the important task which the human are facing. Solar energy as a renewable clean energy is one of the potential energy applying on buildings. This article analyzes the geometric parameters of the solar air collector and summarizes the baffle types of the solar air collector and puts forward to methods improving the efficiency of solar air collector.

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Direct ammonia fueled solid oxide fuel cells: A comprehensive review on challenges, opportunities and future outlooks

International Journal of Energy Technology ◽

10.32438/ijet.203011 ◽

2020 ◽

pp. 70-91 ◽

Cited By ~ 1

Author(s):

Molla Asmare ◽

Mustafa Ilbas

Keyword(s):

Electric Power ◽

Energy Demand ◽

Renewable Energy Sources ◽

Clean Energy ◽

Performance Comparison ◽

Optimum Operating ◽

Practical Implementation ◽

Human Society ◽

Energy Access ◽

Green Fuel

Nowadays, the most decisive challenges we are fronting are perfectly clean energy making for equitable and sustainable modern energy access, and battling the emerging alteration of the climate. This is because, carbon-rich fuels are the fundamental supply of utilized energy for strengthening human society, and it will be sustained in the near future. In connection with this, electrochemical technologies are an emerging and domineering tool for efficiently transforming the existing scarce fossil fuels and renewable energy sources into electric power with a trivial environmental impact. Compared with conventional power generation technologies, SOFC that operate at high temperature is emerging as a frontrunner to convert the fuels chemical energy into electric power and permits the deployment of varieties of fuels with negligible ecological destructions. According to this critical review, direct ammonia is obtained as a primary possible choice and price-effective green fuel for T-SOFCs. This is because T-SOFCs have higher volumetric power density, mechanically stable, and high thermal shocking resistance. Also, there is no sealing issue problem which is the chronic issues of the planar one. As a result, the toxicity of ammonia to use as a fuel is minimized if there may be a leakage during operation. It is portable and manageable that can be work everywhere when there is energy demand. Besides, manufacturing, onboard hydrogen deposition, and transportation infrastructure connected snags of hydrogen will be solved using ammonia. Ammonia is a low-priced carbon-neutral source of energy and has more stored volumetric energy compared with hydrogen. Yet, to utilize direct NH3 as a means of hydrogen carrier and an alternative green fuel in T-SOFCs practically determining the optimum operating temperatures, reactant flow rates, electrode porosities, pressure, the position of the anode, thickness and diameters of the tube are still requiring further improvement. Therefore, mathematical modeling ought to be developed to determine these parameters before planning for experimental work. Also, a performance comparison of AS, ES, and CS- T-SOFC powered with direct NH3 will be investigated and best-performed support will be carefully chosen for practical implementation and an experimental study will be conducted for verification based on optimum parameter values obtained from numerical modeling.

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Economic Institutions and Social Progress

AEA Papers and Proceedings ◽

10.1257/pandp.20191081 ◽

2019 ◽

Vol 109 ◽

pp. 350-356 ◽

Cited By ~ 1

Author(s):

Daniel C. Fehder ◽

Michael E. Porter ◽

Scott Stern

Keyword(s):

Economic Performance ◽

Social Inclusion ◽

Social Progress ◽

Economic Institutions ◽

Economic Factors ◽

Individual Freedom ◽

Education And Health ◽

The Social ◽

Combining Data ◽

And Performance

Combining data from the social progress index and measures of economic institutions and performance, our analysis focuses on how changes in economic institutions and performance are related to subsequent changes in social progress (noneconomic dimensions of societal performance). We document a positive relationship between improved economic performance and subsequent social progress improvements, a separate impact of improved economic institutions on aspects of social progress that involve individual investment (such as education and health), and a noisy relationship between economic factors and those aspects of social progress related to issues of individual freedom and social inclusion.

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Research and Outlook on Northeast Asian Energy Interconnection

E3S Web of Conferences ◽

10.1051/e3sconf/202020904006 ◽

2020 ◽

Vol 209 ◽

pp. 04006

Author(s):

Yi Gao ◽

Zhe Liu ◽

Xinzhi Xu ◽

Yanfen Guo ◽

Jun Li

Keyword(s):

Climate Change ◽

Energy Demand ◽

Quantitative Methods ◽

Fossil Fuels ◽

Northeast Asia ◽

Clean Energy ◽

Social Progress ◽

Low Carbon ◽

Qualitative And Quantitative Methods ◽

High Dependency

Northeast Asia is the most developed region in Asia with large energy demand, and plays an important role in the global economic development. Northeast Asia has been facing severe challenges in ensuring energy security, protecting the environment, and coping with climate change, because of their high dependency on fossil fuels and imports of oil from outside the region, and inverse distribution between energy resources and demand. In order to actively respond to climate change, promote the transition to low-carbon energy and sustainable development in the region, achieve the grand purpose of economic prosperity, social progress and ecological protection, this study is conducted with a focus on power grid interconnection in Northeast Asia. Based on the historical energy and power data in Northeast Asia, this paper studies the development trends of energy and power demand in future by combining qualitative and quantitative methods. Considering the distribution of clean energy bases, this paper proposes an energy interconnection scheme in Northeast Asia with high clear energy penetration scenario. To form the Asia-Europe energy interconnection, the construction of the Asia-Europe interconnection channels is briefly analyzed in this paper.

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An SNA-DEA Prioritization Framework to Identify Critical Nodes of Gas Networks: The Case of the US Interstate Gas Infrastructure

Energies ◽

10.3390/en12234597 ◽

2019 ◽

Vol 12 (23) ◽

pp. 4597

Author(s):

Corrado lo Storto

Keyword(s):

Network Capacity ◽

Efficiency Index ◽

Data Envelopment ◽

Demand And Supply ◽

Gas Network ◽

Critical Nodes ◽

The Social ◽

The Us ◽

And Performance ◽

Important Nodes

This paper presents a framework to identify critical nodes of a gas pipeline network. This framework calculates a set of metrics typical of the social network analysis considering the topological characteristics of the network. Such metrics are utilized as inputs and outputs of a (Data Envelopment Analysis) DEA model to generate a cross-efficiency index that identifies the most important nodes in the network. The framework was implemented to assess the US interstate gas network between 2013 and 2017 from both the demand and supply-side perspectives. Results emerging from the US gas network case suggest that different analysis perspectives should necessarily be considered to have a more in-depth and comprehensive view of the network capacity and performance.

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Perovskites in the Energy Grid and CO2 Conversion: Current Context and Future Directions

Catalysts ◽

10.3390/catal10010095 ◽

2020 ◽

Vol 10 (1) ◽

pp. 95 ◽

Cited By ~ 1

Author(s):

Ahmad Tabish ◽

Anish Mathai Varghese ◽

Md A. Wahab ◽

Georgios N. Karanikolos

Keyword(s):

Energy Demand ◽

Fossil Fuels ◽

Co2 Reduction ◽

Value Added ◽

Clean Energy ◽

High Catalytic Activity ◽

Co2 Conversion ◽

And Performance ◽

Earth’S Climate ◽

Conversion Technologies

CO2 emissions from the consumption of fossil fuels are continuously increasing, thus impacting Earth’s climate. In this context, intensive research efforts are being dedicated to develop materials that can effectively reduce CO2 levels in the atmosphere and convert CO2 into value-added chemicals and fuels, thus contributing to sustainable energy and meeting the increase in energy demand. The development of clean energy by conversion technologies is of high priority to circumvent these challenges. Among the various methods that include photoelectrochemical, high-temperature conversion, electrocatalytic, biocatalytic, and organocatalytic reactions, photocatalytic CO2 reduction has received great attention because of its potential to efficiently reduce the level of CO2 in the atmosphere by converting it into fuels and value-added chemicals. Among the reported CO2 conversion catalysts, perovskite oxides catalyze redox reactions and exhibit high catalytic activity, stability, long charge diffusion lengths, compositional flexibility, and tunable band gap and band edge. This review focuses on recent advances and future prospects in the design and performance of perovskites for CO2 conversion, particularly emphasizing on the structure of the catalysts, defect engineering and interface tuning at the nanoscale, and conversion technologies and rational approaches for enhancing CO2 transformation to value-added chemicals and chemical feedstocks.

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VALUATIONS OF BUILDING PLOTS USING THE AHP METHOD

International Journal of Strategic Property Management ◽

10.3846/ijspm.2019.7952 ◽

2019 ◽

Vol 23 (3) ◽

pp. 197-212 ◽

Cited By ~ 7

Author(s):

Fatma Bunyan Unel ◽

Sukran Yalpir

Keyword(s):

Real Estate ◽

World Economy ◽

Performance Comparison ◽

Ahp Method ◽

Analytic Hierarchy ◽

Valuation Model ◽

Real Estate Valuation ◽

And Performance ◽

Weighted Values ◽

Hierarchy Process

Predicting the value of real estate is a complex endeavor due to the abundance of subjective criteria. Objective consideration of the value-affecting criteria in real estate and regulation of decision support systems will enable the acquisition of more accurate results. In this study, analytic hierarchy process (AHP), a type of multi-criteria decision analysis (MCDA), is used to reproduce coefficients that serve as the basis for real estate valuation. A region in the Selcuklu district of Konya, Turkey was used to test the model created by AHP. Weighted criteria describing areas subjected to purchase/sale were generated by the AHP method and then validated. Additionally, a valuation model was created by the multiple regression analysis (MRA) method for comparison and performance analyses. Weighted values were transformed from AHP points and acquired from the MRA method and then joined with geographic information systems (GIS). Value maps of the study area and purchase/sale values were generated according to these newly created models. The performance comparison and value maps revealed that the AHP method is more successful than the MRA method. This study addressed the complexity of criteria issue by using the original hierarchical structure of AHP and thus contributes to the world economy by enabling the generation of more accurate estimations.

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New Shared Strategic Approaches for Balanced Energy Management in Eurasian Countries

10.36880/c01.00218 ◽

2010 ◽

Author(s):

Akın Marşap ◽

Müslüme Narin ◽

Irfan Özcan

Keyword(s):

Energy Management ◽

Energy Demand ◽

Global Economy ◽

Fossil Fuels ◽

Climate Changes ◽

Life Quality ◽

Clean Energy ◽

Energy Resources ◽

Social Progress ◽

Geothermal Heat

Energy can play a kind of major role for improving life quality and providing sustainable developments is one of the basic inputs of economic and social progress all of the Eurasian countries. It is necessary for improving of the Eurasia countries to providing continuous clean energy, requires to create a suitable market atmosphere. Energy demand is increasing by quick growing up and increase of population of global economy. Most of the increased of energy demand is going to provide by using fossil fuels that are coal, petroleum and like a natural gas. At the end of using these types of fuels creating greenhouse gas emissions that is creating climate changes so it is a major reason of ecological environmental and climate changes is effecting life securities in all areas. With this threat of global warming becoming increasingly urgent, to provide economic development and expectation in healthy environment for future life quality is bringing usage of clean energy resources in front plan. It is a kind of requirement for providing clean energy we need to transforming a unique understanding of using energy resources most economically and effectively. We need to guidance on how to achieve a clean and competitive energy future usage management in renewable energy is energy generated from natural resources-such as sunlight, wind, rain, tides and geothermal heat-which are renewable for Eurasia countries. In this study, we are evaluating of energy management and alternative and renewable clean energy source management for common strategic approaches for Eurasian countries.

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