博碩士論文 104323053 完整後設資料紀錄

DC 欄位	值	語言
DC.contributor	機械工程學系	zh_TW
DC.creator	廖威凱	zh_TW
DC.creator	Wei-Kai Liao	en_US
dc.date.accessioned	2018-8-21T07:39:07Z
dc.date.available	2018-8-21T07:39:07Z
dc.date.issued	2018
dc.identifier.uri	http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=104323053
dc.contributor.department	機械工程學系	zh_TW
DC.description	國立中央大學	zh_TW
DC.description	National Central University	en_US
dc.description.abstract	本研究利用透明板式熱交換器，以水和空氣為工作流體，模擬冷媒在蒸發器入口時之狀態，利用攝影機拍攝進行可視化，觀察不同條件下的流動分佈現象，實驗參數包括不同雷諾數、不同分佈器。 實驗結果得知入口集管內部的流譜對流動分佈有明顯的影響，隨著雷諾數增加，入口流譜從塊狀流轉為環狀流，空氣可以分佈到較遠的流道。使用水平分佈器可以增加器泡在流道的速度，環狀流中心的空氣會沿著分佈器板片往後流動，後半部流道空氣分佈較無分佈器的多，氣體整體分佈更均勻。	zh_TW
dc.description.abstract	In this study, acrylic plate heat exchanger is used as test section to visualize flow distribution. The purpose is to simulate the refrigerant’s flow distribution inside the evaporator using air-water as working fluid and improve the flow distribution by insert the baffles. The experiment has been test with Reynolds number from 50 to 250, different distributor. The results show that there is significant effect on flow distribution with inlet flow pattern. When the Reynolds number increases, the inlet flow pattern transform from slug flow to annular flow. Air can reach to the rear part of the test section. Using horizontal divider can increase the bubble velocity inside the channel, the air in center of annular flow would flow into rear part through the plate of divider, and the air flow distribution is more uniform.	en_US
DC.subject	板式熱交換器	zh_TW
DC.subject	分佈不均	zh_TW
DC.subject	擋板	zh_TW
DC.subject	可視化	zh_TW
DC.subject	Plate heat exchanger	en_US
DC.subject	mal-distribution	en_US
DC.subject	baffle	en_US
DC.subject	visualization	en_US
DC.title	不同型式分佈器對多流道熱交換器流動分佈之影響	zh_TW
dc.language.iso	zh-TW	zh-TW
DC.type	博碩士論文	zh_TW
DC.type	thesis	en_US
DC.publisher	National Central University	en_US