Tech Library

CFD Simulation and Experimental Validation of Ethanol Adsorption onto Carbon Packed Heat Exchanger

Experimental validation of simulated adsorber/desorber beds for sorption cooling applications is essential to obtain reliable results. We have conducted rigorous simulation of the adsorption process occurring in a finned tube adsorber utilizing 2D-axisymmetric geometry. The adsorber uses activated carbon-ethanol as adsorbent-refrigerant pair. It is cooled with water at nearly 30°C and experiencing a sharp pressure increase of ethanol from 0.95 kPa initially to 6 kPa. The simulated temperatures at adsorbent thicknesses of 0, 1, 5 and 10 mm from tube outer diameter showed an increase in adsorbent temperature up to 20 °C from its initial temperature. They were slightly higher at starting of adsorption and consistent with experimental data at higher flow time. The validated CFD model will serve as a base for evaluating and optimizing activated carbon-ethanol adsorption cooling cycle. It can be extended also to different adsorber designs and other adsorbent-adsorbate pairs.

This paper highlights application of the C-Therm TCi Thermal Conductivity Analyzer

Download

Before downloading the file, we request that you send us your contact information. Upon completion of the form you will be prompted to download the file.