| Abstract | Globally, electrification of energy consumption is being presented as a major strategy to achieve carbon neutrality by 2050, and the use of heat pumps is being considered for cooling public buildings. Meanwhile, due to the nature of their location, public buildings in the city cannot use renewable energy such as geothermal or water heat, so they have
no choice but to use air source heat pumps. Using hot outdoor air in summer may affect performance degradation. In this study, an air-source heat pump system and a direct evaporative cooling system were combined, and a long-term empirical study was conducted to confirm the effect of improving the cooling coefficient of performance of the heat pump system through the improvement of the air-source in summer. The experimental result showed that the cooling performance improved by an average of 37.7% when the evaporative cooler was applied under the same outdoor conditions. This result confirms that applying evaporative cooler in the summer has a significant impact on improving heat pump performance. |
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