Study on solar adsorption refrigeration cycle utilizing activated carbon prepared from olive stones

For countries with a high potential of solar energy, producing cold using solar energy is a promising way to sustainable development since the energy used is free and not harmful for the environment. This work proposes a solar adsorption refrigerator using a compound adsorbent fabricated from activated carbon issued from olive stones. High efficiency activated carbon (AC) with different chemical characteristic was prepared. It was established that activated carbon is obtained from carbonized olive stones in presence of nitrogen in the temperature range from 700 to 800 °C and activated by ZnCl2 and KOH. The characterization of the activated carbon samples and the compound adsorbent was studied by SEM (scanning electron microscope) techniques.

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