Engineering and Technology Journal

Keywords = Refrigeration

Number of Articles: 3
Theoretical Study of Refrigerant Injection Technology Effect on Heat Pump Cycle Performance
Theoretical Study of Refrigerant Injection Technology Effect on Heat Pump Cycle Performance

Abdul Hadi N. Khalifa; Johain J. Faraj; Hayder K. Hasan

Volume 34, 14A , December 2016, , Page 2727-2738

https://doi.org/10.30684/etj.34.14A.16

Abstract
  A 5 ton heat pump system with R22 was improved by Liquid Pressure Amplification (LPA) and refrigerant injection technologies. Three approaches for refrigerant injection were used. The ...  Read More ...
Sub-Cooling Auxiliary System for Performance Enhancement of Main Refrigeration System
Sub-Cooling Auxiliary System for Performance Enhancement of Main Refrigeration System

Mustafa W. Hamadalla; Fawziea M. Hussien; Ahmed J. Hamad

Volume 33, 8A , October 2015, , Page 1798-1812

https://doi.org/10.30684/etj.2015.108824

Abstract
  In presentwork, a sub-coolingauxiliary system is integrated with vapour compression refrigeration system to predict the performance characteristics and energy saving of the system. ...  Read More ...
Investigation of the performance of a Solar Powered Adsorption Heat Pipe
Investigation of the performance of a Solar Powered Adsorption Heat Pipe

Abdual Hadi N. Khalifa; Asaad T.AL-Omran; Aedah M.Jawad Mahdy

Volume 30, Issue 17 , October 2012, , Page 2937-2950

https://doi.org/10.30684/etj.30.17.1

Abstract
  An adsorption heat pipe was designed and built from a stainless steel tube of 32 mm outer diameter, 30 mm inner diameter and 1000 mm long, the inner surface of the tube was coated by ...  Read More ...