Fuel Cell Technology
Investigating Performance of Hydrogen Fuel Cells in Different Charge Transfer Coefficients and its Effect on Maximum PowerPoint

A. Mansouri; S. A. Alenabi; R. Gavagsaz-ghoachani

Volume 15, Issue 3 , July 2024, , Pages 311-318


  The charge transfer coefficient is a dimensionless coefficient used in the kinetics of chemical reactions. In this paper, the effect of the charge transfer coefficient on hydrogen fuel cell characteristics such as polarization curve and power diagram in terms of current density and losses is investigated. ...  Read More

Chemical Engineering
Enhancing Performance Evaluation of Archimedes Screw Turbines under Optimal Conditions: A Focus on Flow Rate Analysis, Empirical Equations, and Comparative Scaling Methods

M. Zamani; R. Shafaghat; B. Alizadeh Kharkeshi

Volume 15, Issue 2 , April 2024, , Pages 123-134


  Due to the necessity of utilizing renewable energies, the Archimedes screw turbine can be used as a power generation converter for the use of hydropower energy from river flows. A laboratory-scale model of this turbine with a scale of 1:6 has been designed and constructed. In the experimental tests, ...  Read More

A Review on Renewable Energy Scenario in Ethiopia

A. W. Tahiru; S. U. Takal; E. D. Sunkari; S. Ampofo

Volume 14, Issue 4 , October 2023, , Pages 372-384


  Although Ethiopia is one of the world's fastest-growing economies, access to sustainable energy and cutting-edge clean energy technology remains a major concern. The government is making significant efforts to generate renewable energy and provide more access to its citizens. Despite this, traditional ...  Read More

One-year Dynamic Study of the Use of Solar Water Heater for Domestic Consumption in Egypt: An Energy Assessment

A. Haghani; M. Jahangiri; R. Riahi; M. Golali Jonaghani; A. Baharizadeh

Volume 14, Issue 3 , July 2023, , Pages 263-270


  The use of fossil fuels leads to greenhouse gas emissions, global warming, and secondary consequences such as desertification and winds in the Middle East and Africa, including Egypt. The use of renewable energy is the most appropriate solution to prevent the emission of polluting gases. Egypt is one ...  Read More

Hydropower Development in Three South American Countries: Brazil, Colombia, and Ecuador

S. Naranjo-Silva; D. Punina-Guerrero; J. Barros-Enriquez; J. Almeida-Dominguez; J. Alvarez del Castillo

Volume 14, Issue 2 , April 2023, , Pages 102-110


  The present manuscript aims to identify the advantages and consequences of hydropower development, showing a view of trends finding the status and situation in Brazil, Colombia, and Ecuador. This study uses a non-experimental methodology based on a comprehensive literature review of relevant papers retrieved ...  Read More

Thermal Performance and Heat Dynamics Energy and Exergy of Integrated Asphalt Collector Storage: Sources of Thermal Energy, and Thermoelectric Energy

M. Esmaeili Shayan; M. R. Hayati

Volume 14, Issue 1 , January 2023, , Pages 17-25


  Having kilometers of asphalt road, yet with this heat going to waste, an attempt has been made in this research to extract the road's renewable energy heat. The purpose of the experiment is to compare the energy and exergy efficiency of various materials of asphalt solar water heaters (ASWH), as well ...  Read More

The Strategy of Energy Democracy and Sustainable Development: Policymakers and Instruments

M. Esmaeili Shayan; M. R. Hayati; G. Najafi; S. Esmaeili Shayan

Volume 13, Issue 2 , March 2022, , Pages 185-201


  Energy democracy policymakers pay attention to planning to the formation of energy markets and exchanges of energy regions, diversification of energy resources, especially renewable resources, and global challenges due to greenhouse gas emissions. Over the introduction of concepts related to sustainable ...  Read More

Post-Covid-19 Energy Transition Strategies: Even Reaching 100% Renewable in Ecuador by 2055 is not Enough to Face Climate Change Issue

N. Norouzi; M. Fani

Volume 13, Issue 1 , January 2022, , Pages 1-9


  The pandemic scenario caused by Covid-19 generated negative impacts. Covid-19 has made it clear that our daily lives depend to a high degree on access to energy. Therefore, now more than ever, it is necessary to promote new activities such as local food production, but also local energy capture. This ...  Read More

Modeling the Performance of Amorphous Silicon in Different Typologies of Curved Building-integrated Photovoltaic Conditions

M. Esmaeili Shayan; G. Najafi; B. Ghobadian; S. Gorjian

Volume 13, Issue 1 , January 2022, , Pages 87-97


  Photovoltaic cells are a significant renewable energy source due to their cheap cost and renewability. In both warm sunny and colder and cloudier conditions, a-Si modules outperform c-Si modules on a normalized energy basis. This study investigated 1 m2 of amorphous photovoltaic silicon on curved surfaces. ...  Read More

Assessment of Technological Path of Hydrogen Energy Industry Development: A Review

N. Norouzi

Volume 12, Issue 4 , October 2021, , Pages 273-284


  Hydrogen energy has the advantages of low carbon and cleanliness, high energy density, and high conversion efficiency; it is expected to play a pivotal role in Eastern Asia and the MENA region’s energy transition. The research status and development prospects of various technologies in hydrogen ...  Read More

Design, Construction and Production of Small Scale Energy Generation Plant using Indigenous Resources

M. Tamoor; M. Sagir; G. Abbas; M. Ans Zaka; P. ZakaUllah

Volume 11, Issue 4 , December 2020, , Pages 308-319


  Developing countries like Pakistan are in serious energy crisis. Renewable energy resources are the best alternative for conventional energy sources. The use of indigenous resources to produce bioenergy is an excellent solution to meet the energy needs of developing countries. The aim of the study was ...  Read More

Evaluation of Photovoltaic System Performance: A Case Study in East Azerbaijan, Iran

M. M. Mirzaei Darian; A. M. Ghorreshi; M. J. Hajatzadeh

Volume 11, Issue 1 , March 2020, , Pages 75-78


  Solar energy is a feasible and efficient way to reduce environmental pollution which, in turn, can decrease the production of greenhouse gases. Iran with over 300 sunny days has a high potential for producing energy, including electricity through photovoltaic (PV) systems. Regarding this fact that Iran ...  Read More

Utilization of Soil Temperature Modeling to Check the Possibility of Earth-Air Heat Exchanger for Agricultural Building

H. Faridi; A. Arabhosseini; G. Zarei; M. Okos

Volume 10, Issue 4 , December 2019, , Pages 260-268


  The commonly used energy in Iranian greenhouses is provided from gas or diesel fuel. As fossil fuels will be finished in the coming years, the utilization of renewable energies could be quite significant. In this research, the thermal potential of the soil profile was studied in Kouhsar, Alborz province, ...  Read More

Current Status, Future Potential and Barriers for Renewable Energy Development in Ethiopia

A. Belay Kassa

Volume 10, Issue 4 , December 2019, , Pages 269-274


  Ethiopia is a land locked country, located in Horn of Africa. The country power generation does not meet the national demand of the people. The aim of the paper is to review a current status, future potential and barriers on development of renewable energy for power generations in Ethiopia. The approaches ...  Read More

Performance of a Double Slope Solar Water Distillation: A Case Study of Aiba Stream in Iwo

J. A. Oyewole; A. A. Olanrewaju

Volume 10, Issue 2 , June 2019, , Pages 111-114


  Solar distiller was constructed and tested in this study. The purpose is to get a portable water from nearly any source available in a relatively cheaper means using a renewable solar energy. The result obtained clearly confirmed the reliability of this method to provide portable water especially in ...  Read More

Passive Cooling in Shavadoon of Traditional Buildings of Dezful City: Cooling Through Renewable Energy Sources

F. Mohammad Alinezhad

Volume 10, Issue 2 , June 2019, , Pages 115-120


  Dezful city, located in southwest of Iran, has a hot and semi-humid climate. In the past, architectures used design solutions to provide the cold of living space. Shavadoon is one of the most important design for reaching this goal. Shavadoon is an underground space in traditional buildings of Dezful ...  Read More

An Axial Hydro-Kinetic Turbine for Optimum Power Extraction Using Tidal Dams

A. Zahedi Nejad; P. Zahedi Nejad

Volume 9, Issue 1 , January 2018, , Pages 71-77


  The present paper describes analytical optimization and numerical simulation of a modern hydro-kinetic turbine. It was a tidal turbine with twin elliptic-rotors. The turbines were installed within the twin ducts inside of a tidal dam. There was a gap between each of the turbines and the ducts for allowing ...  Read More

Optimization of a Solar Photovoltaic, Biomass Gasifier and Fuel Cell Hybrid System

A. Singh; P. Baredar

Volume 7, Issue 4 , October 2016, , Pages 87-92


  In this paper sun situated photovoltaic (PV), fuel cell, biomass gasifier generator set, battery reinforcement and force molding unit have mimicked and advanced for an instructive establishment, Energy Center, Maulana Azad National Institute of Technology, Bhopal in the Indian condition of Madhya Pradesh. ...  Read More