| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 763736 | Energy Conversion and Management | 2015 | 11 Pages |
•A mathematical model is developed and verified using a built test-bed.•Thermal and performance characteristics of an anti-idling truck A/C system are investigated.•It is shown that variable speed fans have significant effects on the COP in different conditions.•A point of optimum COP can be found by changing the fans speed for any operating condition.•Anti-idling A/C systems equipped to variable speed control can significantly save environment.
In this study, a recently developed truck anti-idling air conditioning (A/C) system is investigated. A mathematical model is developed to simulate the thermodynamic and heat transfer characteristics of the A/C system and calculate the coefficient of performance (COP). Utilizing environmental chambers and a number of measuring equipment, an experimental setup is built to verify the accuracy of the mathematical model and to perform a comprehensive study on the performance of the system for a wide range of operating conditions. A good agreement between the simulation and the experimental data, with a maximum discrepancy of 10.6%, is achieved. The results show a range of 0.5–1.7 for the system COP under a variety of operating condition. The parametric study shows that for any cooling demand, ambient and indoor air temperatures, there is a point of optimum COP that can be achieved by adjusting the condenser and evaporator fans speed.
