Chinese and Spanish researchers have developed a multi-source heat pump system combining air, water, and ground heat sources for improved performance in cold climates. The hybrid system achieves coefficient of performance values of up to 2.74 and uses an adaptive control strategy to optimize heat source selection across seasonal conditions.
Researchers from China and Spain have developed a three-source heat pump system designed for cold climates. The system integrates an air source heat pump (ASHP), a water source heat pump (WSHP), and a ground source heat pump (GSHP), and was evaluated through both simulations and experimental testing.
“Compared with existing studies that primarily focus on the integration of multi-source heat pump architectures or qualitative evaluations of system performance, this study aims to provide a quantitative thermodynamic assessment of multi-source heat pump systems operating under cold-climate conditions,” the researchers said.
“Multidimensional sensitivity analyses were conducted to quantify the influence of key operating parameters on system pressure ratio, phase-change temperature, and coefficient of performance (COP), thereby identifying the thermodynamic constraints associated with different low-grade heat sources,” they added.
