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Title: | 空調安裝模式於長照住房內溫度分佈之關聯性研究 Association between air-conditioning system and temperature distribution in Nursing Homes |
Authors: | Chun-Wei HUANG 黃俊瑋 |
Advisor: | 陳佳堃(Jia-Kun Chen) 陳佳堃(Jia-Kun Chen | jkchen29@gmail.com | ), |
Keyword: | 長照機構,PMV,計算流體力學,熱舒適,空調排氣系統, long-term care institution,PMV,CFD,thermal comfort,air-conditioning system, |
Publication Year : | 2022 |
Degree: | 碩士 |
Abstract: | 本研究以彰化二林其中一護理之家現場採樣數據尺寸建模並採用計算流體力學 (Computational Fluid Dynamics,CFD)的方式進行模擬。主要挑選出三種空調安裝方式,分別為現場數據測量之模擬模型(Model 1)、移除浴室等空間並調整空調位置之模型(Model 2)與基於Model 2之房間設計並更改空調之模型(Model 3)。調整風速與室內設計來了解長照機構內部的速度及溫度場分布。最後分析三種模型中室內環境與人體的溫度分布的優劣。本研究採用PMV與體感溫度進行室內熱舒適的評估。模擬結果發現三種模型中主要之流場結構均未受到速度改變的影響而改變。體感溫度, PMV熱舒適評估指標(Predicted Mean Vote)與速度分布成正相關。Model 1因室內設計並非規則狀,溫度與速度分布較沒有規律。Model 2與Model 3為了找出適合的分布移除了多餘空間,但仍因空間關係讓兩側住民出現不同的溫度分布。三種模型均無法讓四位住民同時得到相似的熱環境。三種模型中的體感溫度分布與PMV都在流量設置為0.08m3/s時最佳。Model 2的四位住民PMV與體感溫度為三種模型中最低。體感溫度和PMV的結果來說三種模型中結果最好的是Model 1,然而,頭部的溫度分布是現場照護人員考慮是否影響住民熱舒適的主要參數,本研究建議以Model 3之設計為主進行改善。 We analyzed a numerical long-term care model in Erlin, Changhua. This study selected three air-conditioning installation methods and adjusted the wind speed and interior design to investigate the distribution of temperature and velocity fields. PMV and apparent temperature were used to evaluate thermal comfort in the model. The simulation results presented that the flow in the three models was not affected by the velocity variation. Apparent temperature, PMV, and velocity distribution are positively correlated. Since the interior design of Model 1 was not regular, the temperature showed a less stable arrangement. Model 2 and 3 removed excess space to find a suitable distribution but still caused different temperature distributions for residents on both sides due to space size. The PMV and apparent temperature of the four residents in Model 2 were the lowest among the three models. The apparent temperature and PMV of Model 1 were better than those of Model 3. However, the temperature distribution of the head was the main parameter for on-site caregivers to consider whether it affects the thermal comfort of residents. This study still recommended that the design of Model 3 be an immediate improvement. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/85078 |
DOI: | 10.6342/NTU202202098 |
Fulltext Rights: | 同意授權(限校園內公開) |
metadata.dc.date.embargo-lift: | 2022-10-03 |
Appears in Collections: | 環境與職業健康科學研究所 |
Files in This Item:
File | Size | Format | |
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U0001-0508202216221600.pdf Access limited in NTU ip range | 12.48 MB | Adobe PDF | View/Open |
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