scholarly journals Low-Temperature Heat-Generation by Chemical Heat Pump Using CaO/H2O/Ca(OH)2 Reversible Reaction. Effects of Reactor Design and Heat-Exchange Condition.

1997 ◽  
Vol 23 (3) ◽  
pp. 397-403 ◽  
Author(s):  
Hironao Ogura ◽  
Shinji Fujimoto ◽  
Susumu Sato ◽  
Hiroyuki Kage ◽  
Yoshizo Matsuno
Keyword(s):  
Heat Exchange ◽  
Low Temperature ◽  
Heat Pump ◽  
Heat Generation ◽  
Reactor Design ◽  
Chemical Heat ◽  
Chemical Heat Pump ◽  
Temperature Heat ◽  
Exchange Condition ◽  
Heat Exchange Condition

Combined Thermal Engine-Heat Pump Systems for Low-Temperature Heat Generation

1976 ◽  
Vol 190 (1) ◽  
pp. 255-265 ◽  
Author(s):  
G. Angelino ◽  
P. Ferrari ◽  
G. Giglioli ◽  
E. Macchi
Keyword(s):  
Low Temperature ◽  
Heat Pump ◽  
Heat Generation ◽  
Waste Heat ◽  
Combustion Engine ◽  
Heat Output ◽  
Direct Drive ◽  
Temperature Heat ◽  
Organic Fluids ◽  
External Combustion

SYNOPSIS A system is described for low-temperature heat generation for space heating envisaging the adoption of an organic fluid external combustion engine as the direct drive for a heat pump. Waste heat from the engine condenser contributes a substantial fraction of the overall heat output. Progress in experimental work to ascertain the suitability of organic fluids to operate at comparatively high temperature without appreciable decomposition or corrosive action on materials is reported. Results are given of a computation program predicting the performance of systems of various capacity. For the examples considered yearly fuel consumption was calculated to range between 41 and 48% of that of a conventional plant.

Fundamental Experimental Study on Chemical Heat Pump for Storing Low-Temperature Waste Heat and Releasing Cold-Heat

2009 ◽  
Vol 35 (5) ◽  
pp. 506-510 ◽  
Author(s):  
Hironao Ogura ◽  
Masayuki Kubota ◽  
Hikoshiro Suzuki ◽  
Tatsuya Yamakawa
Keyword(s):  
Experimental Study ◽  
Low Temperature ◽  
Heat Pump ◽  
Waste Heat ◽  
Chemical Heat ◽  
Chemical Heat Pump

Chemical Energy Transportation of Waste Heat for Heating/Drying and Cooling/Dehumidifying

2012 ◽  
Vol 622-623 ◽  
pp. 1586-1590 ◽  
Author(s):  
Hironao Ogura ◽  
Eri Ozawa
Keyword(s):  
Heat Pump ◽  
Heat Supply ◽  
Waste Heat ◽  
Chemical Energy ◽  
Energy Utilization ◽  
Chemical Heat ◽  
Storage Container ◽  
Chemical Heat Pump ◽  
Extra Energy ◽  
Temperature Heat

From the viewpoints of energy and environmental problems, an effective energy utilization system for thermal energy management using chemical heat pump container (CHPC) is proposed. In this system, waste heat etc. is stored as chemical energy in CHPC. The stored heat is transported with almost no heat loss by CHPC transportation using truck, train, ship etc. At heat supply area, the stored heat is upgraded to higher temperature heat for heating/drying or lower temperature heat for cooling/refrigerating/dehumidifying without adding extra energy by the chemical heat pump function. In this study, the simulation on local recycling energy system using CHPC for heating/drying and cooling/dehumidifying was performed. The heat storing/releasing characteristics, the energy efficiencies and the CO2 emissions were shown. As a result, the system using CHPC was found to be much more effective than domestic boiler system and even more effective than similar transportation systems using latent heat storage container etc. Especially, the system using CHPC can supply hot-heat and cold-heat effectively without adding extra energy at heat supply area.

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