Adaptation of a gray-box entropy-based model of a gas-driven absorption heat pump for a new low-capacity prototype

In this work, a gray-box model of a gas driven absorption heat pump previously used to describe the performances of a 40kW commercial unit is adapted to characterize the steady-state behavior of a new low-capacity gas driven heat pump prototype. The results show that the model is still very accurate, although the two heat pumps differ in terms of capacity and thermodynamic cycle. After modifying a few parameters, the deviation between the performances calculated by the model and the experimental ones are lower than 3%.