Basic adsorption heat exchanger theory for performance prediction of adsorption heat pumps.

ABSTRACT: Adsorption modules are the core components of thermally driven adsorption heat pumps and chillers. Due to the transient nature of the adsorption and desorption processes, usually complicated numerical models are used for prediction of efficiency and heat flow rates. In this research article, we suggest a radically simplified calculation based on splitting up the ad- and desorption half cycle into a transient, strongly non-isothermal switching phase and a quasi-isothermal phase. In the quasi-isothermal phase, the heat flow rates can be calculated with relationship between temperature effectiveness (ϵ) and number of transfer units (NTU). Effective thermal resistances account for the heat and mass transfer processes. The prediction quality of our simple calculation in terms of heat flow rates

SUBMITTER: Velte-Schafer A 

PROVIDER: S-EPMC10708995 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature