To address global warming and climate change, air source heat pumps, known for their high energy efficiency, are emerging as a key eco-friendly solution for heating and cooling. These heat pumps can replace fossil fuel-based heating systems, helping t...
To address global warming and climate change, air source heat pumps, known for their high energy efficiency, are emerging as a key eco-friendly solution for heating and cooling. These heat pumps can replace fossil fuel-based heating systems, helping to reduce greenhouse gas emissions. However, the hydrofluorocarbon(HFC) refrigerants traditionally used have high global warming potential(GWP), posing environmental concerns. Consequently, there is ongoing effort to replace them with low-GWP refrigerants. This study develops an air source heat pump utilizing low-GWP refrigerants and analyzes its performance and environmental benefits through field tests. Specifically, it compares the low-GWP heat pump with conventional high-GWP heat pumps under various operating conditions, assessing differences in energy efficiency, performance, and greenhouse gas emissions. This comparison verifies the potential for low-GWP refrigerants to improve the efficiency and sustainability of heat pumps, providing a pathway for the future development of environmentally-friendly heating and cooling systems.