Proceedings of Symposium on Energy Engineering in the 21st Century (SEE2000) Volume I-IV

ISBN Print: 1-56700-132-7

APPLICATION OF CHEMICAL HEAT PUMP THECHNOLOGY TO INDUSTRIAL DRYING: A PROPOSAL FOR A NEW CHEMICAL HEAT PUMP DRYER

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DOI: 10.1615/SEE2000.1150
pages 932-938

Hironao Ogura Dept. of Applied Chemistry, Kyushu Institute of Technology Tobata, Kitakyushu 804-8550 JAPAN

Hiroyuki Kage Dept. of Applied Chemistry, Kyushu Institute of Technology Tobata, Kitakyushu 804-8550 JAPAN

Yoshizo Matsuno Dept. of Applied Chemistry, Kyushu Institute of Technology Tobata, Kitakyushu 804-8550 JAPAN

Arun S. Mujumdar Department of Chemical Engineering, McGill University, Montreal, Canada; National University of Singapore 9 Engineering Drive 1 Singapore 117576

Abstrakt

From the viewpoints of energy saving and environmental impact, a Chemical Heat Pump (CHP) system for ecofriendly effective utilization of thermal energy in drying is proposed. The CHP can store thermal energy in the form of chemical energy by an endothermic reaction, and release it at various temperature levels during heat demand by exo/endothermic reactions. As an example, the authors propose a CHP system using the CaO/Ca(OH)2 hydration/dehydration reaction for heat storage and cold/hot heat generation. CHPs have potentials for heat recovery and dehumidification in the drying process by heat storage and high-/low-temperature heat release. In this study, we estimate the potential of the CHP application to drying systems for industrial use. Some combined systems of CHP and dryer are proposed as Chemical heat Pump Dryers (CHPD). The potential of the CHPDs are discussed.

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