Study on solar chemical heat pump system -- Basic experiment on falling film reaction of 2-propanol dehydrogenation
- Electrotechnical Lab., Tsukuba Ibaraki (Japan). Energy Technology Div.
It is not easy to use solar energy because it has low energy density and is interrupted by passing clouds. Furthermore it is difficult to continuously get high-temperature thermal energy from the sun under a poor solar condition such as in Japan. However, it is easy to get low-temperature thermal energy. Therefore, the authors use a chemical heat pump, which uses endothermic and exothermic reactions, in order to upgrade low-temperature thermal energy obtained from the sun. They adopted 2-propanol/acetone/hydrogen system as the chemical reaction. In the endothermic process of this system, improvement of the heat utilization factor was one of the serious subjects to realize this system. In order to solve this problem, they made a new type reactor called a falling-liquid film reactor (FFR) and experimented the dehydrogenation reaction of 2-propanol. The major result was that the FFR provides four times as high heat utilization factor as a conventional liquid-phase suspension reactor (LSR) does. In this paper, the authors describe the detailed results obtained from above experiments.
- OSTI ID:
- 347593
- Report Number(s):
- CONF-970701--
- Country of Publication:
- United States
- Language:
- English
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