A Double-Bed Adsorptive Heat Transformer for Upgrading Ambient Heat: Design and First Tests

Mikhail Tokarev
Additional contact information
Mikhail Tokarev: Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, 630090 Novosibirsk, Russia

Energies, 2019, vol. 12, issue 21, 1-14

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/SiO 2 was used as an adsorbent with methanol as an adsorbtive substance under boundary temperatures of T L /T M /T H = ?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.

Keywords: adsorptive heat transformation; heat upgrading; composite adsorbent; methanol; useful heat; specific power (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/21/4037/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/21/4037/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:21:p:4037-:d:279590

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().