Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
645801 | Applied Thermal Engineering | 2014 | 6 Pages |
Abstract
A grooved-tube heat exchanger was developed and applied as an evaporator of a refrigerating system. Studies were carried out to evaluate the performance of the refrigerator. Isobutane (R-600a) was employed as the working fluid. Same studies were performed on the system but with the same size of a regular-tube evaporator. The two refrigerating systems were compared in terms of heat exchanger effectiveness, coefficient of performance (COP), and two-phase pressure drop. The heat exchanger effectiveness of the grooved-tube evaporator was found to be higher compared to the regular-tube evaporator. COP of the system with the grooved-tube evaporator was also observed to be higher. Although the pressure drop for the grooved-tube evaporator was slightly higher than that for the regular-tube evaporator, the compressor demand for this increase was not very significant.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Serdar Celik, Emmanuel C. Nsofor,