Abstract
A heat pump has been considered as an alternative to an electric heater to increase the efficiency of the heating unit in electric vehicles. However, the heating performance of a single source heat pump has yet to be improved at low outdoor temperatures. This study investigates the feasibility of a dual source heat pump using both air and waste heat in electric vehicles. The performance of the dual source heat pump was measured at various operation modes: air source-only, waste heat-only and dual heat source. The heating performance of the dual source heat pump was higher than those of the single source heat pumps. In addition, an alternating single mode operation of air source-only and waste heat-only modes was proposed to improve performance at low outdoor air temperatures.
| Original language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Applied Energy |
| Volume | 119 |
| DOIs | |
| Publication status | Published - 2014 Apr 15 |
Bibliographical note
Funding Information:This research was supported by the Korean Evaluation Institute of Industrial Technology (No. 10035530) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20124010203250).
Keywords
- Automobile
- Heat pump
- Performance
- R134a
- Waste heat
ASJC Scopus subject areas
- Mechanical Engineering
- General Energy
- Management, Monitoring, Policy and Law
- Building and Construction
- Renewable Energy, Sustainability and the Environment
