Realistic utilization of emerging thermal energy recovery and storage technologies for buildings

被引:6
作者
Ragoowansi, Evan A. [1 ]
Garimella, Srinivas [1 ]
Goyal, Anurag [2 ]
机构
[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Sustainable Thermal Syst Lab, Atlanta, GA 30332 USA
[2] Indian Inst Technol Delhi, Dept Mech Engn, New Delhi 110016, India
来源
CELL REPORTS PHYSICAL SCIENCE | 2023年 / 4卷 / 05期
关键词
PHASE-CHANGE MATERIALS; AIR-CONDITIONING SYSTEM; WASTE HEAT-RECOVERY; CONDUCTIVITY ENHANCEMENT; PCM; WATER; EXCHANGER;
D O I
10.1016/j.xcrp.2023.101393
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Increasing demand for heating and cooling in the building sector is a major contributor to global energy consumption and carbon emis-sions. Here we report the potential for heat recovery technologies and thermal energy storage in reducing the primary energy con-sumption and carbon footprint of all US buildings. Using thermody-namic models of appliances with significant thermal energy utiliza-tion, we estimate that there is a potential to recover -3,300 3 1015J of waste heat across all buildings in the US. Effective utilization of this waste heat using simple retrofits and inexpensive storage me-dia can save -19% of primary energy consumption in buildings. The matching of operating conditions for representative end uses and energy savings potential associated with the appropriate thermal energy recovery and storage system will help researchers identify and develop tailored low-cost materials in concert with desired stor-age temperature and energy and power densities.
引用
收藏
页数:20
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