Research Article
1. Optimization of Biodiesel Production from Castor Oil Using a Microwave Via Response Surface Methodology (RSM)

Mohammad Kord; Seyed Mojtaba Sadrameli; Barat Ghobadian

Volume 3, Issue 4 , Autumn 2016, Pages 1-9

http://dx.doi.org/10.30501/jree.2016.70094

Abstract
  The purpose of this research work was to investigate the optimum operating conditions for biodiesel production from castor oil using a microwave. The Box–Behnken design of experiment was carried out using the Design Expert 7. A response surface methodology (RSM) was used to analyze the influence ...  Read More

Research Article
2. Life-Cycle Assessment of Environmental Effects on Rapeseed Production

Somayeh Choobin; Bahram Hosseinzadeh Samani; Zahra Esmaeili

Volume 3, Issue 4 , Autumn 2016, Pages 10-19

http://dx.doi.org/10.30501/jree.2016.70095

Abstract
  In recent years, increasing the awareness on the environmental problems, especially global warming, has increase the concerns about the impact of emissions on the global climate. The current study was conducted to evaluate and analyze the environmental effects of rapeseed production in the form of life ...  Read More

Research Article
3. Small Hydro-Power Plants in Kenya: A Review of Status, Challenges and Future Prospects

John G Mbaka; Mercy. W. Mwaniki

Volume 3, Issue 4 , Autumn 2016, Pages 20-26

http://dx.doi.org/10.30501/jree.2016.70096

Abstract
  Small Hydro-power Plants (SHP) are an important source of electricity in many countries. However, little is known about SHP in Kenya. This paper reviews the status, challenges in implementation of SHP and prospects for future development of SHP in Kenya. The paper shows that SHP has not yet fully utilized ...  Read More

Research Article
4. Utilization of Co-digestion of Local Brewery Wastes and Cattle Dung as a Potential Source of Biogas and Organic Fertilizer

Olatunde A. Oyelaran; Yau Y. Tudunwada; James K. Abidoye; Olawale M. Sanusi

Volume 3, Issue 4 , Autumn 2016, Pages 27-33

http://dx.doi.org/10.30501/jree.2016.70097

Abstract
  Biogas production from co-digestion of local brewery waste (BW) and cow dung (CD) was study for value added to this solid waste. The objective of this research was to fine the optimum condition for maximum biogas production and also examined the effectiveness of the biogas residue (liquor from anaerobic ...  Read More

Research Article
5. Impact of Using Renewable Energy on the Cost of Electricity and Environment in Northern Cameroon

Joseph Pemndje; Adrian Ilinca; Théophile Rufin Tene Fongang; Rene Tchinda

Volume 3, Issue 4 , Autumn 2016, Pages 34-43

http://dx.doi.org/10.30501/jree.2016.70098

Abstract
  This paper determines and compares the cost of energy (COE) of various hybrid systems for several off-grid facilities in North and Far North regions of Cameroon by integrating renewable sources and/or storage with diesel generators. The estimated annual energy production by solar PV systems and wind ...  Read More

Research Article
6. Proposing New Algorithm for Modeling of Regenerative Fuel Cell (RFC) System

Hossein Ghadamian; Hassan Ali Ozgoli; Mojtaba Baghban Yousefkhani; Foad Farhani

Volume 3, Issue 4 , Autumn 2016, Pages 44-53

http://dx.doi.org/10.30501/jree.2016.70099

Abstract
  Regenerative Fuel Cell (RFC) systems are used for the enhancement of sustainable energy aspect in conventional fuel cells. In this study, a photovoltaic-electrolyzer-fuel cell integrated cycle has been presented. The proposed system has been designed as a novel approach for alleviating the ...  Read More

Research Article
7. Investigation of Hydroxylated Carbon Felt Electrode in Vanadium Redox Flow Battery by Using Optimized Supporting Electrolyte

Mohammad Zarei-Jelyani; Mohsen Babaiee; Abdolmajid Ghasemi; Rahim Eqra

Volume 3, Issue 4 , Autumn 2016, Pages 54-59

http://dx.doi.org/10.30501/jree.2016.70100

Abstract
  Traditional vanadium batteries use pure sulfuric acid as electrolyte, but H2SO4 does not absorb enough vanadium ions to make the electrolyte an efficient energy source. This study investigates the effect of hydroxylation process on electrochemical and operational properties of carbon felt electrode in ...  Read More