Drying Technology · 2005 · 48 citations · 12 references
EngineeringChemical EngineeringMechanical EngineeringHeat TransferProcess ControlReaction EngineeringHeat ControlHeat PumpsHeat Transfer In ReactorsTemperature ControlTemperature Control In ReactorsThermal-hydraulic ControlAir Temperature RegulationDrying Process ControlHeat Pump SystemsHeat Pump TechnologyHeat Storage
ABSTRACT This article presents results of an experimental investigation on the controllability of hot air production using a pair of chemical heat pumps (CHP). The objective of this study is to determine how a CHP-assisted batch dryer can be operated effectively. The CHP uses the well-known CaO/H2O/Ca(OH)2 hydration/dehydration reaction, which is reversible. The hot air temperature can be controlled by adjusting the reactor temperature, and pressure, as well as thermal power supplied to it. It is shown that hot air can be produced in both the heat storage and heat release steps of the CHP.
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