This research presents a computational and experimental analysis of reducing compressor effort and boosting cooling capacity to improve the performance coefficient (COP) of split air conditioners (SACs). The expansion device is a two-phase ejector with a revolutionary dual-evaporator temperature design. The mathematical model produced in the EES programme is used in numerical approaches. Thermodynamic analysis is performed in order to meet the ASHRAE Standard requirements for a minimum SAC with a COP of 3.5. As a thermal fluid medium, R-290 is used in the SAC system. A numerical model of the ejector is then created based on the simulation results and installed in a modified SAC system with a cooling capacity of at least 9000 BTU/hour. An experiment was done to assess the ejector's actual performance and its impact on the SAC system's performance. The results demonstrated that the two-phase ejector worked well with the new dual-evaporator temperature system. When compared to traditional split air conditioners that use capillary tube expansion mechanisms, the tested ejector method saves about 35% of energy. The system's COP can reach 5.5, accounting for 39% of the improvement in performance. The use of the COS-SAC dual temperature evaporator system with constant ejector area, which is intended to be used for split AC to replace the accumulator in normal ejector systems, has been successful.
Author(s) DetailsM. E. Arsana
Doctoral Engineering Science Study Program, Faculty of Engineering, Udayana University, Denpasar, Bali, Indonesia.
I. G. B. Wijaya Kusuma
Doctoral Engineering Science Study Program, Faculty of Engineering, Udayana University, Denpasar, Bali, Indonesia.
M. Sucipta
Doctoral Engineering Science Study Program, Faculty of Engineering, Udayana University, Denpasar, Bali, Indonesia.
I. N. Suamir
Mechanical Engineering Department, Bali State Polytechnic, Bali, 80364, Indonesia.
View Book :- https://stm.bookpi.org/AAER-V7/article/view/971
No comments:
Post a Comment