Research Note Photovoltaic Systems
1. Development of a Simple Model to Estimate Entropy Generation of Earth

A. Ahmadi; M. A. Ehyaei

Volume 1, Issue 2 , Summer and Autumn 2020, Pages 135-141

Abstract
  Entropy generation can be caused by the energy transfer from a high-temperature recourse to a low-temperature resource; this is defined by the second law of thermodynamics. This phenomenon can occur for the Earth by transferring the solar energy from the sun to the earth. The process of entropy generation ...  Read More

Original Article
2. An Experimental Study on Producing a Sustainable Diesel-like Fuel from Waste Engine Oil

E. Bani-Hani; F. Alkhatib; A. Sedaghat; A, Alkhazzam; F. Al-Dousari; O. Al-Saad

Volume 1, Issue 2 , Summer and Autumn 2020, Pages 143-150

Abstract
  Used engine oil is one of the most environment pollutants that is produced in large quantities. Methods of recycling and reuse of the oil are important for sustainable environment. In this work, a new experimental method is proposed for producing diesel-like fuel from the waste engine oil. The study ...  Read More

Review Paper Wind Energy
3. A New Method for Real Time Economic Dispatch Solution Including Wind Farms

H. Berahmandpour; Sh. Kouhsari; H. Rastegar

Volume 1, Issue 2 , Summer and Autumn 2020, Pages 151-160

Abstract
  Economic dispatch in the presence of wind farms is of high interest in power system operational planning. Due to the uncertainty of wind speed and wind power, a probabilistic model is needed for application in economic dispatch solution. The weibull probability distribution function is a common tool ...  Read More

Original Article Photovoltaic Systems
4. Global Solar Radiation, Sunshine-hour Distribution, and Clearness Index: A Case Study of Sub-Sahara Region in Nigeria

N.O. Adeniji; J.O. Adeniji; O. Ojeikere

Volume 1, Issue 2 , Summer and Autumn 2020, Pages 161-174

Abstract
  Global solar radiation is the sum total of all radiation reaching the earth surface i.e. it includes: the direct and the diffused solar radiation reaching the earth surface. The instrument used for measuring this very important component arriving from the whole hemisphere is the pyranometer. This is ...  Read More

Original Article Solar Thermal Engineering
5. Thermodynamic and Exergy Analyses of a Novel Solar-Powered CO2 Transcritical Power Cycle with Recovery of Cryogenic LNG Using Stirling Engines

A. Naseri; M. Fazlikhani; M. Sadeghzadeh; A. Naeimi; M. Bidi; Seyyed H. Tabatabaei

Volume 1, Issue 2 , Summer and Autumn 2020, Pages 175-185

Abstract
  In this paper, a novel CO2 transcritical power cycle which is driven by solar energy integrated by a cryogenic LNG recovery unit is investigated. In the proposed cycle, the condenser unit of the CO2 power cycle is replaced by a Stirling engine. Thermodynamic and exergy analyses are carried out to evaluate ...  Read More

Original Article
6. A Case Study on Effect of Inclination Angle on Performance of Photovoltaic Solar Thermal Collector in Forced Fluid Mode

Sakhr M. Sultan; C. P. Tso; Ervina Efzan M. N

Volume 1, Issue 2 , Summer and Autumn 2020, Pages 187-196

Abstract
  A case study is conducted to evaluate the photovoltaic (PV) performance in a horizontal and in an inclined PV solar thermal collector (PVT) for two different PVT geometries; the series flow and the parallel series flow. It is shown that the series flow gives a better photovoltaic performance at a horizontal ...  Read More