Highly efficient thermoelectric air conditioner with kilowatt capacity realized by ground source heat-exchanging system
Qiulin Liu,
Falin Wei,
Guodong Li,
Zongxiang Kan,
Jiawei Yang,
Hangtian Zhu,
Baolong Wang,
Huaizhou Zhao
Affiliations
Qiulin Liu
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Falin Wei
Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China
Guodong Li
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; Corresponding author
Zongxiang Kan
Xianghe Orient Electric Company Limited, Langfang, Hebei 065400, China
Jiawei Yang
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Hangtian Zhu
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Baolong Wang
Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China; Corresponding author
Huaizhou Zhao
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; Corresponding author
Summary: The enormous need for refrigeration of modern human life has inevitably aggravated the environmental crisis worldwide. To date, there are very few refrigeration technologies available beholding both harmless refrigerants and high efficiency. Here, we proposed a geothermal-thermoelectric air conditioning system (GeoTEAC) with refrigerant-free and high energy efficiency through synergistically combining the merits of thermoelectric effect and ground source heat exchanging system. The system showed competitive cooling and heating COPs of 5.83 and 2.92, respectively, with kilowatt capacity, which are 3–4 times higher than that of previously reported thermoelectric air-conditioning setups. For a conceptual scenario, we demonstrated the lowest TEWI values for the GeoTEAC system among different air-conditioning types. Our work provides sustainable and climate-friendly solutions to realize worldwide emission peaks and carbon neutralization.
