Theoretical research demonstrates improved cooling and dehumidification in air conditioning, suggesting eco-friendly solutions.
Key Points
To analyze a coupled CO2 transcritical refrigeration system with a liquid desiccant dehumidification cycle and assess its performance using exergy analysis.
Developed a thermodynamic model of the coupled system.
Conducted exergy analysis to evaluate performance metrics.
Examined effects of key parameters like discharge pressure and CO2 mass flow rate ratio in Evaporator II on performance.
Achieved an optimal COP of 4.32 at around 10,500 kPa discharge pressure.
Enhanced dehumidification capacity with a low specific dehumidification energy of 0.2033 kWh/kg.
Identified over 60% of exergy losses occurring in the CO2-solution heat exchanger and dehumidifier.
Maximum exergy efficiency of the system reached 12.4%, indicating potential for further improvement.