Sia, Chee Kiong (2004) Non-CFC refrigerants ; first and second law efficiencies. Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering.
- Submitted Version
Restricted to Repository staff only
PDF (Table of Contents)
PDF (1st Chapter)
Concern about the ozone depletion and green house effects caused by refrigerants have initiated and continued studies into more environmentally friendly refrigerants. This study looked into the performance of these refrigerants in terms of second law efficiency, COP, irreversibility, and discharge temperature. A program based on Visual Basic has been developed that can quantify the parameters above and this can be used to guide industrialists in their efforts to build or retrofit systems with new refrigerants. Results from the simulation have shown that R134a is potentially good as a replacement for R12, R402a for R502, and R407c for R22.
|Item Type:||Thesis (Masters)|
|Additional Information:||Thesis (Sarjana Kejuruteraan (Mekanikal)) - Universiti Teknologi Malaysia, 2004; Supervisor : Dr. Normah Mohd Ghazali|
|Uncontrolled Keywords:||ozone depletion, Non-CFC refrigerants, second law efficiency, Coefficient Of Performance (COP), irreversibility, discharge temperature|
|Subjects:||T Technology > TD Environmental technology. Sanitary engineering|
T Technology > TJ Mechanical engineering and machinery
|Deposited By:||Ms Zalinda Shuratman|
|Deposited On:||20 Dec 2010 05:00|
|Last Modified:||29 Aug 2012 03:28|
Repository Staff Only: item control page