Basharie, Siti Mariam (2005) Performance modelling of refrigerants in a vapor compression refrigeration cycle. Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering.
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Abstract
The simulation model based on the actual vapor compression cycle is performed in order to evaluate the performance of 14 refrigerants in terms of first law and second law efficiency. A 10% pressure drop is modelled in both the condenser and evaporator. The refrigerants that have been evaluated include R12, R22, R502, and their alternatives R134A, R401A, R401B, R402A, R402B, R404A, R407C, R410A, R408A, R409A, and R507. Effects of evaporating and condensing temperature on the COP, second law efficiency and irreversibility have been studied. The evaluation results show that R401A, R401B, and R409A are predicted as the best replacements for R12. R410A is predicted as the best alternative for R22, while R402B, R407C, and R408A are the best alternatives for R502 in terms of COP and second law efficiency. The results of actual cycle model show better predictions than that obtained with the ideal cycle model.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | Thesis (Sarjana Kejuruteraan (Mekanikal)) - Universiti Teknologi Malaysia, 2005; Supervisor : Dr Normah bte Mohd Ghazali |
| Uncontrolled Keywords: | vapor compression, refrigerants |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Mechanical Engineering |
| ID Code: | 11529 |
| Deposited By: | Narimah Nawil |
| Deposited On: | 20 Dec 2010 05:22 |
| Last Modified: | 19 Sep 2018 05:07 |
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