Transformation analysis of thermochemical reactor based on thermophysical properties of graphite-MnCl2 complex
SCIE
SCOPUS
- Title
- Transformation analysis of thermochemical reactor based on thermophysical properties of graphite-MnCl2 complex
- Authors
- Han, JH; Lee, KH; Kim, DH; Kim, H
- Date Issued
- 2000-11
- Publisher
- AMER CHEMICAL SOC
- Abstract
- Transformation of the graphite-MnCl2 complex/ammonia system was investigated in a thermochemical reactor through numerical simulation. Thermophysical properties such as effective thermal conductivity and gas permeability were measured for the reactive medium with a bulk density of 100-250 kg m(-3) and the values obtained were in the range of 14.0-25.6 W m(-1) K-1 and (8.0 x 10(-15))-10(-12) m(2) respectively. A model for the thermochemical reactor was developed on a macroscopic scale, and then the measured thermophysical properties were used in the model equations. The results of the simulation showed that, when the operating pressure was <1.0 bar and the bulk density of the reactive media was >200 kg m(-3), the rate of global conversion was significantly impeded by the mass-transfer limitation. The absence of a distinctive heat front in the reactor shows that heat transfer is not a limiting factor with the graphite-MnCl2 complex.
- Keywords
- CHEMICAL HEAT-PUMPS; NUMERICAL SIZING TOOL; SOLID-GAS REACTIONS; MASS-TRANSFER; DYNAMIC BEHAVIOR; PILOT PLANTS; SIMULATION; PERFORMANCE; SORPTION; MODEL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19811
- DOI
- 10.1021/ie9904394
- ISSN
- 0888-5885
- Article Type
- Article
- Citation
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 39, no. 11, page. 4127 - 4139, 2000-11
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