화학공학소재연구정보센터
Heat Transfer Engineering, Vol.31, No.11, 917-923, 2010
Thermodynamic Property Surfaces for Adsorption of R507A, R134a, and n-Butane on Pitch-Based Carbonaceous Porous Materials
The thermodynamic property surfaces of R507A, R134a, and n-butane on pitch-based carbonaceous porous material (Maxsorb III) are developed from rigorous classical thermodynamics and experimentally measured adsorption isotherm data. These property fields enable us to compute the entropy, enthalpy, internal energy, and heat of adsorption as a function of pressure, temperature, and the amount of adsorbate. The entropy and enthalpy maps are necessary for the analysis of adsorption cooling cycle and gas storage. We have shown here that it is possible to plot an adsorption cooling cycle on the temperature-entropy (T-s) and enthalpy-uptake (h-x) maps.