Original Article Fuel Cells
Reinforcing Proton Exchange Membrane Fuel Cell Powered Unmanned Aerial Vehicle with an Innovative Combined Flow Field

M. Rostami; A. H. Farajollahi; F. Bagherpor; V. Sfandiyar

Articles in Press, Accepted Manuscript, Available Online from 02 March 2022

https://doi.org/10.22044/rera.2021.11214.1081

Abstract
  Polymer electrolyte membrane fuel cells (PEMFCs) produce high power density efficiently and in a pollution-free way. Therefore, it is employed in UAVs. Flow fields play key role in the performance of PEMFC-powered UAVs. In this study, a novel flow field named modified combined was introduced and investigated ...  Read More

Original Article Systems with Low Energy Consumption
Optimal Energy Resource Planning and Combined Heat and Power Sizing in a Residential Area to Supply Electrical and Thermal Demand in a Reconfigured Power Grid

Seyed E. Hoseini; M. Simab; B. Bahmani-Firouzi

Articles in Press, Accepted Manuscript, Available Online from 16 May 2022

https://doi.org/10.22044/rera.2022.11568.1099

Abstract
  The argument of power systems planning in home microgrids has become one of the burning topics in optimization studies today among the researchers. Since the installation and use of high-capacity energy sources in power systems have many limitations and constraints, so part of the perspective of power ...  Read More

Original Article Photovoltaic Systems
Techno-Economic and Environmental Analysis of Floating Photovoltaic Power Plants: A Case Study of Iran

M. Mirzaei Omrani; M. Mirzaei Omrani

Articles in Press, Accepted Manuscript, Available Online from 16 May 2022

https://doi.org/10.22044/rera.2022.11726.1104

Abstract
  Solar energy as renewable and clean energy has a remarkable share in improving the water-energy-food nexus. However, due to occupying a vast area of land, the development of large-scale photovoltaic systems is a serious challenge, particularly in regions with land restrictions. As a solution, it is argued ...  Read More

Original Article Energy Policy
Effective Environmental Factors on Efficiency of Office Buildings Staff in a Cold Semi-Arid Climate (Case Study: Kermanshah)

M. Ansari Manesh; E. Sarkardehee; S. Jafarian

Articles in Press, Accepted Manuscript, Available Online from 16 May 2022

https://doi.org/10.22044/rera.2022.11758.1108

Abstract
  Human beings spend most of their time in indoor environments. A large part of people around the world work and live in urban areas. Economic productivity is an important goal of different buildings, especially office buildings. Various factors play a role in economic productivity, including reducing ...  Read More

Original Article Tide, Wave and Hydro Power
Dynamic Response of a Combined Spar-Type FOWT and OWC-WEC by a Simplified Approach

A. Abazari

Articles in Press, Accepted Manuscript, Available Online from 16 May 2022

https://doi.org/10.22044/rera.2022.11768.1109

Abstract
  The combination of offshore wind turbines and wave energy converters has recently been the focus of researchers. Many types of converters have been installed on the offshore platform in the design step, and the performance of these hybrid systems has been investigated. The oscillating water column converter ...  Read More

Original Article Electricity Generation by Green Energy Sources
Outage Probability Analysis of Wireless Energy Harvesting-assisted Networks Considering Dual Energy-Data Channel Models

S. Poursheikhali

Articles in Press, Accepted Manuscript, Available Online from 16 May 2022

https://doi.org/10.22044/rera.2022.11848.1119

Abstract
  In this paper, an energy harvesting assisted wireless network is considered where a source, contrary to the conventional networks, harvests its required energy via two independent energy channels. In addition, we assume a destination terminal, which receives interference signals along with the data transferred ...  Read More

Original Article
Enhanced power extraction by splitting a single flap-type wave energy converter into a double configuration

A. Abazari; M.M. Aziminia

Articles in Press, Accepted Manuscript, Available Online from 20 June 2022

https://doi.org/10.22044/rera.2022.11846.1118

Abstract
  Flap-type wave energy converter is one of the oscillating surge devices for generating electricity from the ocean wave source. It comprises a vertical plate pivoted on a hinged base that oscillates rotationally due to the exciting wave. Splitting a single flap into two separated flaps in a double arrangement ...  Read More

Original Article Biomass Energy Sources
Hydrodynamic Behavior of Biomass Micro-Particles in Counter-Flow Combustion of Dust Clouds

Moslem Akbari Vakilabadi; Alireza Binesh; Mostafa Monfared

Articles in Press, Accepted Manuscript, Available Online from 29 June 2022

https://doi.org/10.22044/rera.2022.11963.1128

Abstract
  A mathematical model has been investigated to predict the effect of hydrodynamic forces, especially thermophoretic forces on micro organic particles in counter-flow combustion in this research. Hydrodynamic forces change the velocity and concentration of evaporative organic particles moving toward the ...  Read More

Original Article
The investigation of arc angle rotor blade variations effect of the Savonius vertical axis wind turbine on the Power and Torque coefficients, using 3D modeling

Mohammad Akhlaghi; Farzad Ghafoorian

Articles in Press, Accepted Manuscript, Available Online from 20 August 2022

https://doi.org/10.22044/rera.2022.11282.1084

Abstract
  Unacceptable air pollution leads to a remarkable increase in the consumption of renewable energy. Wind energy is known as one of the conventional renewable sources, therefore installation of wind turbines has increased over the past three decades. Savonius wind turbine is one of the types of vertical ...  Read More

Original Article
Fault Diagnosis in Photovoltaic Modules Using Straightforward Voltage-Current Characteristics Evaluation

arman zare; Mohsen Simab; mehdi nafar

Articles in Press, Accepted Manuscript, Available Online from 20 August 2022

https://doi.org/10.22044/rera.2022.11728.1105

Abstract
  Due to the growing demand in the electricity sector and the shift to the operation of renewable sources, the use of solar arrays has been at the forefront of consumers' interests. In the meantime, since the production capacity of each solar cell is limited, in order to increase the production capacity ...  Read More

Original Article
Economic Evaluation of a Hybrid Hydrogen Liquefaction System Utilizing Liquid Air Cold Recovery and Renewable Energies

Masoud Taghavi; Hesamoddin Salarian; Bahram Ghorbani

Articles in Press, Accepted Manuscript, Available Online from 20 August 2022

https://doi.org/10.22044/rera.2022.11899.1122

Abstract
  The present study economically evaluates a combined hydrogen liquefaction configuration using combined heat and power system, photovoltaic cells unit and liquid air energy recovery for precooling under climatic states of Yazd, Iran. The LAC recovery is used to precool hydrogen. Moreover, the cascade ...  Read More

Original Article
Hybridization of Moringa stenopetala and Azadirachta indica Seed Oil to Synthesize Biodiesel with Improved Quality

Degnechew Genene Demisu; Daniel Gebeyehu Wondifraw

Articles in Press, Accepted Manuscript, Available Online from 20 August 2022

https://doi.org/10.22044/rera.2022.11955.1127

Abstract
  Biodiesel has been considered as biodegradable, green, cleaner, alternative, renewable and eco-friendly energy source. It can supersede petrol-diesel and help to solve challenges accompanied with energy crisis, socio-economic, environmental pollution, climate change and global warming. Hybridization ...  Read More

Original Article
Integration of renewable energy-based systems for transport sector in 2050; a case study in Iran

Alireza Babaie Pirouziana; Abolfazl Ahmadi

Articles in Press, Accepted Manuscript, Available Online from 20 August 2022

https://doi.org/10.22044/rera.2022.11910.1124

Abstract
  Recent studies have shown that the integration of power generation, seawater desalination, and industrial gas production can significantly reduce costs and generate clean energy on a large scale. On the other hand, by the growth of population, transportation has been known as a major consumer of fuel ...  Read More

Original Article
Modal Dynamics of NREL 5MW Wind Turbine during Normal and Parked Conditions

Seyyed Ali Sina; B. Balanian

Articles in Press, Accepted Manuscript, Available Online from 20 August 2022

https://doi.org/10.22044/rera.2022.11985.1129

Abstract
  Multi-Megawatt wind turbines have long, slender and heavy blades that can undergo extremely wind loadings. Good understanding of the modal dynamics of these large machines is of great priority. In this paper, modal dynamics of NREL 5 MW wind turbine is investigated. To this aim, FAST software has been ...  Read More