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Modeling and experiments on a finned cylindrical reactor with expanded graphite/activated carbon/lithium chloride-ammonia for chemisorption refrigeration systems


Pérez, Eduar
Romero, Iván
Albis, Alberto
Carmona, Mauricio

Artículo de revista


2021-02-05

Applied Thermal Engineering

Reino Unido

Lithium chlorideBuscar en Repositorio UFPS
AmmoniaBuscar en Repositorio UFPS
Chemisorption heat storageBuscar en Repositorio UFPS
Heat and mass transfer modelBuscar en Repositorio UFPS
Experimental validationBuscar en Repositorio UFPS

This paper presents a transient heat and mass transfer model with experimental validation of a finned cylindrical adsorbent bed for performance analysis in chemisorption refrigeration system. The approximate solution for the mathematical model, including transient heat and mass transfer equations in cylindrical coordinates, was obtained by implementing the Crank-Nicholson approach in a finite difference scheme. Geometrical configuration and physical parameters, including bed material thermal properties and TGA-based kinetic modeling for reaction rate estimation, were used as model data inputs to predict thermal bed distribution, heat flows, and coefficient of performance for a refrigeration system. Results from the model were validated with transient data from a chemical sorption refrigeration test bench. Refrigeration system reactor was made of expanded graphite/activated carbon/lithium chloride (AC/EG/LiCl)-adsorbent (NH3 in solution with a 25% concentration). The model demonstrated excellent agreement and an adequate representation of the physical phenomena, constituting a potential tool for efficiency-enhancing development of adsorption reactors for refrigeration systems.

http://repositorio.ufps.edu.co/handle/ufps/1671

https://www.sciencedirect.com/science/article/abs/pii/S1359431120337601

  • Ingeniería y Desarrollo Social - INDES [87]

Descripción: Modeling and experiments on a finned cylindrical reactor with expanded graphite-activated carbon-lithium chloride-ammonia for chemisorption refrigeration systems.pdf
Título: Modeling and experiments on a finned cylindrical reactor with expanded graphite-activated carbon-lithium chloride-ammonia for chemisorption refrigeration systems.pdf
Tamaño: 9.610Mb

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