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Dynamic Modelling and Design Optimization of a Heat-Pipe-Integrated Chemisorption Adsorber.

Number: No 201

Author(s) : YANG Z., QU M., GLUESENKAMP K.

Summary

Thermally driven chemical adsorption (chemisorption) systems have recently seen increased research and development for their potential in novel energy applications such as solar-driven refrigeration and cold-climate heat pumping. The sorbentcontaining adsorber is the core of a chemisorption system where the reversible chemical reaction occurs between the sorbent and the refrigerant, generating useful heat and the desired pressure level. Therefore, properly designed adsorbers with enhanced chemical reaction and heat and mass transfer are critical to overcoming the key limitation of chemisorption technology of low power density and energy efficiency.
In this study, a dynamic model using the finite difference method is developed to simulate the heat/mass transfer and chemical reaction in a chemisorption adsorber using stacked heat pipe plates. The model is first used to simulate and analyze the transient desorption and adsorption performance of a baseline design. Then parametric analysis reveals the impact of key design parameters such as the heat pipe spacing and sorbent plate geometry and identifies optimal design for two different expanded graphite composite sorbents.

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  • Original title: Dynamic Modelling and Design Optimization of a Heat-Pipe-Integrated Chemisorption Adsorber.
  • Record ID : 30030036
  • Languages: English
  • Subject: Technology
  • Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Publication date: 2021/08/31

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