Nowadays, in the residential sector, a widely used Heating, Ventilation and Air Conditioning
system is the ducted direct expansion inverter system based on the on/off control of a single …

A common concern is that air-source heat pumps (ASHP) perform poorly when operating at
partial load. This issue arises due to the disparity between the unit's heating capacity and …

This paper presents an analysis of a thermal zoning system integrated in a Heating,
Ventilation and Air-Conditioning (HVAC) system based on an air-to-water heat pump with a …

Rising cooling needs for the residential and commercial air conditioning sectors and the
demand for higher SEER require HVAC&R to handle cooling loads below the design …

Clean and low-carbon heating methods are vigorously promoted in China under a carbon
peak and carbon neutrality background. The application of air-source heat pump system …

Connecting multiple air source heat pump units in parallel to form an air source heat pump
array (ASHP-A) is an important heating approach for central heating in small areas. At a low …

Reducing the heat transfer temperature difference via reasonable indoor temperature
determination and air conditioning system design is a confirmed building energy-saving …

The air source heat pump (ASHP), as an energy-saving and environmentally friendly
heating technology, has been widely used in central heating projects. The initial selection …

The influence of flow step ratio (FSR) on the startup characteristics of instant heat pump
water heaters (IHPWHs) with natural mixture M (R744/R290 (12/88)) under nominal …

The challenge of performance attenuation of air source heat pumps in low-temperature
environments has garnered significant attention. This study presents a Quasi-Two-Stage …