An open activated carbon/CO2 sorption cooling system

The feasibility of a carbon dioxide desorption cooling process using an ope n reactor was studied. Easy control of the cooling phase and a relatively i nteresting energy storage capacity were demonstrated. Beyond the applicatio n examined, this process raises the problem of developing an adsorbent mate rial with a high energy storage capacity and high heat- and mass-transfer p roperties. A method for defining the ideal activated carbon was developed f rom the Dubinin approach. Implementation of PX21, a commercial activated ca rbon with the closest to ideal characteristics for this application, was pe rformed using a thermoplastic-expanded natural graphite combination. Dynami c simulation, validated with experimental data, demonstrated the interest o f this product and defined perspectives for improvement.