Engineering and Technology Journal

Keywords = Heat pump

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, Issue 14 , 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 ...
Effect of Different Refrigerant Injection Techniques on Heat Pumpcycle Performance
Effect of Different Refrigerant Injection Techniques on Heat Pumpcycle Performance

Abdual Hadi N. Khalifa; Johain j. faraj; Anmar Adnan

Volume 32, Issue 10 , October 2014, , Page 2576-2586

https://doi.org/10.30684/etj.32.10A.18

Abstract
  Refrigerant injection techniques are considered as modifications to vapor compression refrigeration systems to improve the performance of these systems when operating at high or low ...  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 ...