الفهرس 
ABSTRACT
Adsorption cooling systemsOnly 14 pages are availabe for public view
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Abstract
The objective of the present thesis is to develop an adsorption cooling system powered by temperature waste heat or renewable energy sources below 100 C. To achieve this target six different adsorption pairs have been investigated in order to obtain its benefits if it have been employed in adsorption cooling applications. Activated carbon powder (ACP) of type Maxsorb III and activated carbon fiber (ACF) of type A-20 have been used as adsorbents. These two adsorbents have been studied with three different HFCs regrigerants, which are R134a, R32 and R410a. Hence, six adsorption pairs (ACP/R134a, ACF/R134a. ACP/R32, ACF/R32, ACP/R410a and ACF/R410a) have been studied from the cooling applications point of view. The adsorption characteristics in terms of isotherms and kinetics have been investigated experimentally and theoretically. The usotherms of the six adsorption pairs have been studied experimentally at various adsorption temperatures (from 10 C to 75 C) in a test rig which has been designed and built especially for this purpose. The isotherms investigations focused on determining the adsorption uptake amounts and the isosteric heats of adsorption with respect tp pressure and temperature. The experimental data have been fitted with three different theoretical models (Langmuir. Toth and Dubinin-Astakhov) in order to determine its parameters such as the maximum uptake amount (Cه), isosteric heat of adsorption (Hst) and exponential parameters (n, bه). It has been noticed that the D-A model fits the experimental data of the different adsorption pairs better than the order models. The adsorption kinetics of the different six adsorption pairs have been investigated experimentally at different adsorption temperatures using an apparatus which has been designed and built for this task.