Air source heat pumps are an excellent electric alternative to fossil fuel based heating
systems for reducing residential greenhouse gas emissions, but common mild climate …

Aiming to develop a high-efficiency and low-cost high-temperature heat pump with large
temperature lift ability, a novel vapor injection autocascade heat pump for high-temperature …

Auto-cascade refrigeration (ACR) systems are known for their innovative solutions,
especially suitable for low and ultra-low-temperature applications. However, ACR cycles are …

CO 2 is a new type of friendly refrigerant. In order to investigate the effect of the operating
parameters of the transcritical CO 2 heat pump system on heating performance, the …

Efficient heating system is critical for electric vehicles to extend the driving range. In this
paper, an air source heat pump system with waste heat recovery (WHR) for the electric bus …

As HFC refrigerants widely employed in electric vehicle heat pump systems face stringent
restrictions due to environmental concerns, CO 2 has attracted significant attention as a …

Widespread adoption of electric vehicles is limited by their mileage, which is severely
shortened by the positive temperature coefficient (PTC) heater in cold weather. To alleviate …

The aim of this work is to evaluate the cabin heating energy consumption and driving range
for a battery electric vehicle. The vehicle was tested in climatic wind tunnel laboratory under …

Mixture fluids have the advantage of a flexible adjustment of the physicochemical properties
by actively tuning the composition and concentrations, showing promising potential in …

An experimental investigation and comparison of the heating performance of the transcritical
CO 2 single-stage and vapor injection cycles were conducted. The effects of operating …