建築生活熱水系統耗能改善之研究

The Study of Improvement of Energy Consumption in the Building Hot Water Systems

賴忠毅(Chung-Yi Lai)

指導教授 ： 李孟杰

國立臺中科技大學/設計學院/室內設計系碩士班/碩士(2012年)

https://doi.org/10.6826/NUTC.2012.00044

摘要

建築生活用水中以熱水加熱系統耗能最多，改善熱水系統耗能及節水是本研究的重點。加熱系統依規模可分為中央式與局部式熱水系統，中央式熱水系統可藉由改良為熱泵節省耗能；局部型熱水系統則可加裝迴水系統達到節能目的。
本研究經過設計後建置一20m長的迴水系統，系統內可針對兩種迴水系統與進行13mm與19mm管徑不銹鋼保溫管及六種不同管長耗能與耗水實驗，並與未迴水系統比較。經實驗證實：未迴水系統若改為迴水系統，最高可省電55%、節省瓦斯20%，且不必漏除冷水，效益確能優於未迴水系統。
使用局部式熱水系統之建築若要改為迴水系統，會牽涉室內裝修，故本研究以開放式建築角度探討，建議施作活動式高架地板或以踢腳板整合迴水管路，可作為簡易施工且利於後續維修的方案；此外，在幾乎不裝修的情況下，若以連通迴水管的方式改裝，利用冷水管進行迴水，可以減少迴水管路的設置，對於既有建築之熱水系統改善，亦有所效益。

關鍵字

生活熱水獨立迴水系統 ； 連通迴水系統 ； 開放式工法 ； 省水 ； 節能

並列摘要

The water heating system consumes the most energy of hot water using in a building. This study aims at the energy and water saving of hot water systems. The hot water system is divided into the central hot water systems and the individual hot water systems. The energy consumption of central hot water systems can be saved by changing into to heat pumps, and the energy consumption of individual hot water systems can be reduced by changing into circulation hot water systems.
This study builds a 20m-length circulation hot water system, including 2 different pipe diameters (13mm and 19mm), 6 different pipe lengths (1m, 2m, 4m, 8m, 16m and 20m). Comparing with the non-circulation hot water system, the individual circulation system and bypass circulation system can save up to 55% electric energy and 20% gas consumption, without wasting the cold water. According to the experiment results, the circulation water system saves more energy than the non-circulation system.
The open building concept can be adopted as the circulated piping system installation. In order to achieve the aesthetic and the easy-to-maintenance objectives, the water pipes can be put under the raised floor or the skirt board integrated with the circulation water system. Another piping method is the bypass circulation hot water system which almost consumes the same energy and water saving efficiency as the individual circulation hot water systems.

並列關鍵字

Hot water system ； Individual Circulation water systems ； Bypass circulation water systems ； Open Building, Water saving ； Energy saving

參考文獻

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