Adsorption isotherms, kinetics and thermodynamic simulation of CO2-CSAC pair for cooling application

Vinod Kumar Singh, E. Anil Kumar, Bidyut Baran Saha

    研究成果: Contribution to journalArticle査読

    17 被引用数 (Scopus)

    抄録

    This research article proposes to develop a waste heat driven single-stage adsorption-based cooling system by selecting CO2 and indigenous coconut shell based activated carbon (CSAC) as the adsorbate/adsorbent pair. The CO2 adsorption isotherms and kinetics of activated carbon are measured at different temperatures (273–368 K) using volumetric method. In order to illustrate adsorption isotherms, experimental data of CO2 uptake is correlated with the Langmuir and Dubinin-Astakhov (D-A) models. On the other hand, Linear Driving Force (LDF) and Fickian Diffusion (FD) models are utilized to explain adsorption kinetics data. Fugacity and pseudosaturation pressure of CO2 plays a significant role in the estimation of high-pressure CO2 adsorption and thermodynamic properties above the critical temperature of CO2, and these parameters are evaluated using adsorption isotherms data. The key thermodynamic properties and kinetics parameters of the assorted pair are estimated using measured adsorption isotherms and kinetics data which are used for the thermodynamic analysis of CO2-CSAC pair based cooling system. The maximum theoretical values of SCE and COP of CO2-CSAC pair are obtained as 12.52 kJ kg−1 and 0.10, respectively at the regeneration temperature of 80 °C along with the evaporator temperature of 15 °C.

    本文言語英語
    ページ(範囲)1158-1173
    ページ数16
    ジャーナルEnergy
    160
    DOI
    出版ステータス出版済み - 10 1 2018

    All Science Journal Classification (ASJC) codes

    • 土木構造工学
    • 建築および建設
    • 汚染
    • 機械工学
    • 産業および生産工学
    • 電子工学および電気工学

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