Improving performance of A CO2 Thermally Driven Heat Pump Based on a New Optimal High-Pressure Correlation

Optimizing the performance of CO2 heat pumps often requires an optimal high pressure setpoint,
which traditionally depends on the gas cooler outlet temperature and sometimes the evaporation temperature,
as proposed in [8]. Despite the variety of correlations available in the literature, no single generalized correlation
can be universally applied to all applications. Consequently, it is advisable to determine the optimal correlation
specific to each application to achieve the most accurate and relevant results. Boostheat has developed a new
thermally driven heat pump with a three-stage thermal compressor to exploit CO2 in its supercritical state. This
study, based on a validated model, investigates the impact of various parameters such as the return water
temperature, fume and evaporation temperature on the overall coefficient of performance (COP). Using the
most significant