Research Article
1. Optimizing Window Size and its Sunshade in Four Main Directions of Residential Buildings in Mild Climate by Integrating Thermal and Lighting Analysis

Ayda Montaser Koohsari; Rima Fayaz; Behrouz Mohammad Kari

Volume 3, Issue 2 , Spring 2016, Pages 1-14

http://dx.doi.org/10.30501/jree.2016.70080

Abstract
  As part of sustainable architecture principles and practices, designers need to define building's architectural requirements based on climatic conditions, environmental preservation and reduction in energy consumption. The natural energy sources such as solar radiation affect thermal and lighting performances ...  Read More

Research Article
2. Speed Control of Wind Turbine through Pitch Control Using Different Control Techniques

Javad Faiz; Arash Hakimi Tehrani; Ghazanfar shahgholian; Amir Masoud Takbash

Volume 3, Issue 2 , Spring 2016, Pages 15-23

http://dx.doi.org/10.30501/jree.2016.70081

Abstract
  Pitch control is one of t he  major aspects of wind turbine control, particularly over high wi nd s p e e d  a n d  oscillations. General El e c t r i c  (GE) model of  wi n d  t ur bi ne  i s practically compatible with the structure of the wind turbines. I t  ...  Read More

Research Article
3. Sliding-Mode-based Improved Direct Active and Reactive Power Control of Doubly Fed Induction Generator under Unbalanced Grid Voltage Condition

Gholam Reza Arab Markadeh; Nasrin Banimehdi

Volume 3, Issue 2 , Spring 2016, Pages 24-34

http://dx.doi.org/10.30501/jree.2016.70082

Abstract
  This paper proposes an improved direct active and reactive power control (DPC) strategy for a grid-connected doubly fed induction generator (DFIG) based wind-turbine system under unbalanced grid voltage condition. The method produces required rotor voltage references based on the sliding mode control ...  Read More

Research Article
4. Thermal Performance of a Double-pass Solar Air Heater

Roonak Daghigh; Abdellah Shafieian

Volume 3, Issue 2 , Spring 2016, Pages 35-46

http://dx.doi.org/10.30501/jree.2016.70083

Abstract
  This study analyzes the thermal performance of solar thermal energy using double-pass absorber plate in Sanandaj, Iran. To this end, a mathematical model was encoded according to the energy and exergy balance equations and solved by MATLAB software. Given the environmental conditions and radiation intensity ...  Read More

Research Article
5. Upgrading of Biological Treatment for Landfill Leachate by Nano-Membrane Systems

Mahsa Alimoradi; Mohsen Jahanshahi; Majid Peyravi

Volume 3, Issue 2 , Spring 2016, Pages 47-56

http://dx.doi.org/10.30501/jree.2016.70084

Abstract
  Treatment of landfill leachate is challenging, due to its characteristics such as age, dumping place, composition and origin of wastes. For this reason, the application of hybrid processes is helpful for complete treatment of contaminants present in the leachates. The addition of membrane operations ...  Read More

Research Article
6. Biodiesel Production Using Hybrid Amino Functionalized Chitosan-carbon Support as Green Catalyst

Behzad Aghabarari

Volume 3, Issue 2 , Spring 2016, Pages 57-62

http://dx.doi.org/10.30501/jree.2016.70085

Abstract
  In this study, Functionalized chitosan with amine groups was synthesized and coated on the surface of carbon black. The hybrid amino functionalized chitosan-carbon support was employed as an efficient, environmentally friendly heterogeneous catalyst for the transesterification reaction of canola oil ...  Read More

Research Article
7. Development of a Pilot Plant Solar Liquid Desiccant Air Conditioner for the Northern Region of Iran

Shahab Alizadeh; Hamid Reza Haghgou

Volume 3, Issue 2 , Spring 2016, Pages 63-70

http://dx.doi.org/10.30501/jree.2016.70086

Abstract
  In a 10-ton capacity pilot plant solar liquid desiccant air conditioner (LDAC) developed, dehumidification of the outside air is achieved through a honeycomb packed-bed heat and mass exchanger, using lithium chloride solution as the desiccant. The dry air obtained from the dehumidification process is ...  Read More