Research Summary and Literature Review on Modelling and Simulation of Heat Pumps for Simultaneous Heating and Cooling for Buildings

Abstract

A heat pump for simultaneous heating and cooling (HPS) is a refrigeration machine by which the productions of heating and cooling energies are simultaneously valorized. This introductory article presents the uses of heat pump productions under the form of an analysis of thermal demands of different types of buildings and a literature review of real installations and experimental systems, which are the basis of the construction of numerical models. The applications of HPSs are diverse: space heating and cooling, domestic hot water (DHW), hot water for desalination process, etc. Means and methods for improving the performance of refrigeration cycles and the management of heat and cold productions are developed, including modeling and simulation. New refrigeration circuit architectures were designed. A focus is paid on refrigerants. Prototypes combining heating-cooling, heating-cooling-DHW and cooling-desalination have been developed, built and tested to validate the models. Even though a strong simultaneity of thermal demands is essential, the results show that HPSs are generally very efficient systems.

Installation of Alternative Energy Sources and Equipment in Residential Buildings in Latvia

“…Modern heat pumps use the latest technologies and materials, which significantly improve their efficiency. Heat pumps also utilize subcooling to lower the temperature before the expansion valve, and a compressor with a higher efficiency [7].…”

“…• Cooling and DHW production mode (condensation in the coil and evaporation in the internal exchangers) [7].…”

Residential Buildings Heating and Cooling Systems: The Key Role of Monitoring Systems and Real-Time Analysis in the Detection of Failures and Management Strategy Optimization

“…Pean et al [28] used data acquired by the building supervisory controller to improve the energy flexibility of the heat pump, whereas Byrne [29], starting from the real data of the heat pump, developed a mathematical model capable of simulated machine behaviour when providing heating and cooling simultaneously. Therefore, the scientific literature has approached the demand for heating and cooling in the residential sector, focussing mainly on technological aspects, presenting the monitoring system more as a tool for research purposes than as a complementary technology useful for providing benefits to the management of buildings in a real operating environment [30,31].…”

Modelling and Simulation of Heat Pumps for Simultaneous Heating and Cooling, a Special Issue

“…An introductory article presents the uses of heat pump productions in the form of an analysis of the thermal demands of different types of buildings and a literature review of real installations and experimental systems, which are the bases of the construction of numerical models [1]. The applications of HPSs are diverse: space heating and cooling, domestic hot water (DHW), hot water for desalination processes, etc.…”