Abstract: A full scale lab prototype of an adsorptive heat transformer (AHT), consisting of two adsorbers, an evaporator, and a condenser, was designed and tested in subsequent cycles of heat upgrading. The composite LiCl/SiO2 was used as an adsorbent with methanol as an adsorbtive substance under boundary temperatures of TL/TM/TH = −30/20/30 °C. Preliminary experiments demonstrated the feasibility of the tested AHT in continuous heat generation, with specific power output of 520 W/kg over 1–1.5 h steady-state cycling. The formal and experimental thermal efficiency of the tested rig were found to be 0.5 and 0.44, respectively. Although the low potential heat to be upgraded was available for free from a natural source, the electric efficiency of the prototype was found to be as high as 4.4, which demonstrates the promising potential of the “heat from cold” concept. Recommendations for further improvements are also outlined and discussed in this paper.

Cite: Tokarev M.
A Double-Bed Adsorptive Heat Transformer for Upgrading Ambient Heat: Design and First Tests
Energies. 2019. V.12. N21. 4037 :1-14. DOI: 10.3390/en12214037 WOS Scopus РИНЦ AN OpenAlex

Files: Full text from publisher

Dates:

Submitted:	Sep 28, 2019
Accepted:	Oct 22, 2019
Published print:	Oct 23, 2019
Published online:	Oct 23, 2019

Identifiers:

Web of science:	WOS:000512340000016
Scopus:	2-s2.0-85075558719
Elibrary:	43208094
Chemical Abstracts:	2020:964530
OpenAlex:	W2981497480

Citing:

DB	Citing
Scopus	13
Web of science	12
Elibrary	13
OpenAlex	12

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