2206 高耐圧マイクロチャンネル熱交換器の伝熱流動特性評価  [in Japanese] The heat transfer flow characteristic evaluation of high pressure-resistant micro-channel heat exchanger  [in Japanese]

A micro channel device is a device with many narrow passages. It is expected that the micro channel device is high performance heat exchanger device in various fields. In the present study, a high pressure resistant micro channel device is developed. And the heat exchanger with the micro channel device is newly manufactured. Experiment and numerical analysis are performed to investigate the heat transfer characteristic of the flow through the micro channel heat exchanger. It turns out that the overall heat transfer coefficient becomes high with increasing the Reynolds number of heating gas and a coolant gas. The maximum value of the overall heat transfer coefficient for gases is 180 (W/m^2K) in present experimental range.