@article{ee5745a344334cceb28778a027392496,
title = "Electrochemically driven phase transformation for high-efficiency heat pumping",
abstract = "To reduce energy consumption and improve energy utilization in space conditioning, advanced heat pumping technologies are needed. The chemical looping heat pump (CLHP) is a promising thermodynamic cycle that has theoretically shown the potential to achieve a cooling coefficient of performance (COPc) increase of over 20% relative to conventional vapor compression systems. In this paper, the key process of the CLHP is experimentally demonstrated, and the system performance and non-ideal behavior are predicted using the component-level models. The results show the feasibility of electrochemical phase change of a working fluid; the peak COPc was 7.64 with a cooling capacity of 3.6 mW (cooling density of 2.57 W m−2) at both sink and source temperature of 23°C based on laboratory experiments. The COPc can theoretically reach up to 13 at a temperature lift of 15°C as long as an electrochemical cell can achieve a greater degree of conversion.",
keywords = "air conditioning, chemical looping heat pump, electrochemical, heat pump, not-in-kind technology",
author = "Junyoung Kim and Abhiroop Mishra and Braun, {James E.} and Groll, {Eckhard A.} and Joaquin Rodr{\'i}guez-L{\'o}pez and Davide Ziviani",
note = "Funding Information: The authors gratefully acknowledge support from the Center for High Performance Buildings at the Ray W. Herrick Laboratories, a Ross Fellowship from the Graduate Program at Purdue University, the Department of Energy Building Technologies Office under award DE-EE0008673, and Carrier Global Corporation. The authors would like to thank Yunyan Sun and Elias N. Pergantis for helpful discussions. The authors would also like to express gratefulness for the contributions of Dr. Nelson A. James of the National Renewable Energy Laboratory. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Conceptualization, J.K. J.E.B. and D.Z.; methodology, J.K. J.E.B. and D.Z.; formal analysis, J.K. J.E.B. and D.Z.; software, J.K.; investigation, J.K.; resources, A.M. and J.R.-L.; data curation, J.K.; writing – original draft, J.K.; writing – review & editing, J.E.B. and D.Z.; supervision, J.E.B. D.Z. and E.A.G.; project administration, J.E.B. and D.Z.; funding acquisition, J.E.B. and D.Z. The authors declare no competing interests. Funding Information: The authors gratefully acknowledge support from the Center for High Performance Buildings at the Ray W. Herrick Laboratories, a Ross Fellowship from the Graduate Program at Purdue University , the Department of Energy Building Technologies Office under award DE-EE0008673, and Carrier Global Corporation . The authors would like to thank Yunyan Sun and Elias N. Pergantis for helpful discussions. The authors would also like to express gratefulness for the contributions of Dr. Nelson A. James of the National Renewable Energy Laboratory. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Publisher Copyright: {\textcopyright} 2023 The Author(s)",
year = "2023",
month = apr,
day = "19",
doi = "10.1016/j.xcrp.2023.101369",
language = "English (US)",
volume = "4",
journal = "Cell Reports Physical Science",
issn = "2666-3864",
publisher = "Cell Press",
number = "4",
}