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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Heat transfer on packed bed is considered to be important for the effective designs of chemical reaction equipment, air conditioning system, and storage type heat exchanger, etc. Currently studies are being carried out quite actively in this field in order to increase the heat transfer effeciency.
The effect of heat transfer is closely related to materials, shapes, porosities and packing states of packed bed as well as mutual dimensional relations between particles and the container. Investigation shows that heat transfer results appear to be influenced by such parameters as fluid velocity through packed bed, mass flow, and thermal properties. It is noted that viscosity is also considered to be an important factor in this problem.
In this study, effective thermal conductivities on packed bed, effects of thermal conductivity (Ke) and friciton factor (Fk) according to change of porosity ( ε) and Reynolds number (Reh), and pressure loss of the fluid, are experimentally investigated.
Results show that the effective thennal conductivity increases and the friction factor decreases, as against the increase of Reynolds number. But as the increase of porosity increase them both.
The effect of heat transfer is closely related to materials, shapes, porosities and packing states of packed bed as well as mutual dimensional relations between particles and the container. Investigation shows that heat transfer results appear to be influenced by such parameters as fluid velocity through packed bed, mass flow, and thermal properties. It is noted that viscosity is also considered to be an important factor in this problem.
In this study, effective thermal conductivities on packed bed, effects of thermal conductivity (Ke) and friciton factor (Fk) according to change of porosity ( ε) and Reynolds number (Reh), and pressure loss of the fluid, are experimentally investigated.
Results show that the effective thennal conductivity increases and the friction factor decreases, as against the increase of Reynolds number. But as the increase of porosity increase them both.
목차
Abstract
1.緖論
2.理論解析
3.實驗裝置 및 實驗方法
4.實驗結果 및 考察
5.結論
References
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