TY - JOUR
TI - Automotive air conditioning system with an internal heat exchanger using R1234YF and different evaporation and condensation temperatures
AU - Direk Mehmet
AU - Kelesoglu Alper
JN - Thermal Science
PY - 2019
VL - 23
IS - 2
SP - 1115
EP - 1125
PT - Article
AB - This study presents the energy and exergy analysis of an R1234yf AAC  (automotive air conditioning) system. For this aim, an experimental baseline  AAC system was developed and a double pipe IHX (internal heat exchanger) was  employed to the system. The detailed performance comparison of the system  under different condensation and evaporation temperatures was studied for  both the baseline system and the system with the IHX. For this, the cooling  capacity, COP (coefficient of performance) and the total exergy destruction  per cooling capacity were evaluated. Additionally, the volumetric and  isentropic efficiencies of the compressor were investigated. It was  determined that the IHX has increased COP and decreased exergy destruction  per cooling capacity by 4%-6% and 13%-16%, respectively.