相變化材料對南台灣商用貨櫃熱能管理成效之研究

Effect of Phase Change Material in Commercial Shelter for Thermal Management at Southern Taiwan

杜政昀(Jheng-Yun Du)

指導教授 ： 周煥銘

共同指導教授 ： 張育斌(Yuh-Ping Chang)

崑山科技大學/工程學院/機械工程研究所/碩士(2008年)

摘要

有效能與節約的技術，用在大量儲存的熱能或是蓄能管理，在學術的文獻上研究非常深遠，然而相變化材料（PCM）潛熱儲存過程中，具有高能量存儲密度和恆溫控制相變化，在整個過程期間具有非常前瞻性，因此將存儲運用在綠色節能建材其為相當重要，潛能儲存與建造產品之結合非常具有高度幫助，增加大樓熱能儲存容積，可提升人類舒適並減少室內空氣溫度頻率搖擺，讓室內的恆溫並延長時間。在建築過去十年PCMs領域，有幾個大有可為研發加熱和冷卻的建築應用，不同PCMs融化並且在不同範圍相變話材料凝固，在許求應用過程中使它更佳注目，本論文嘗試研究將熱性能管理將無機化合物PCM的熱能管理之熱能儲存儲系統，應用在商業及住宅建築貨櫃。商業HS-207(熔點27.69℃，熔化的焓194.5 kJ/kg) 格林高科技能源有限公司引進，印度同步使PCM[www.ghel.in].，每件PCM模組尺寸41.5 x 21 x 2.5 cm3，重量為2.2公斤，總共40個PCM模組安裝於建築貨櫃天花板，並與參考物之建築貨櫃產生溫度差△T，此△T差值具有幫助建築貨櫃重大影響，另外在低溫環盡下，PCM相變化材料具有阻隔室內溫度熱傳。

關鍵字

太陽能 ； 潛能 ； 相變化材料 ； 能源存儲

並列摘要

Efficient and economical technology that can be used to store large amounts of heat or cold in a definite volume is the subject of research for a long time. Latent heat storage in a phase change material (PCM) is very attractive because of its high-energy storage density and its isothermal behavior during the phase change process. Thermal storage plays a major role in building energy conservation, which is greatly assisted by the incorporation of latent heat storage in building products. Increasing the thermal storage capacity of a building can enhance human comfort by decreasing the frequency of internal air temperature swings so that the indoor air temperature is closer to the desired temperature for a longer period of time. Several promising developments for heating & cooling applications for buildings are taking place in the field of thermal storage using PCMs in buildings within the past decade. There are large numbers of PCMs that melt and solidify at a wide range of temperatures, making them attractive in a number of applications. This paper attempts to study the thermal performance of an inorganic eutectic PCM based thermal storage system for thermal management in a commercial/residential building container. Commercial Grade HS-207 (melting point 27.69°C, latent heat of fusion 194.5 kJ/kg) procured from Green Hi-Tech Energy (P) Ltd., India [www.ghel.in] was used as a PCM. The dimension of the each PVC PCM module was 41.5 x 21 x 2.5 cm3 and it was having 2.2 kg PCM. Twenty PVC PCM modules were installed in the ceiling portion only. The experimental thermal performance of the system has been investigated during the months of September-October, 07.

並列關鍵字

Solar Energy ； Latent Heat ； Phase Change Materials ； Energy Storage

參考文獻

[1]. A. Abhat, “Low temperature latent thermal energy storage system: heat storage materials,” Solar Energy, 1983, pp.313–32.

[2]. Garg HP, Mullick SC, Bhargava AK. “Solar Thermal Energy Storage, D. Reidel Publishing Company,” Dordrecht, 1985.

[3]. Kaygusuz K. “The viability of thermal energy storage,” Energy Sources, 1999, pp.745–56.

[4]. Hasnain SM. Review on sustainable thermal energy storage technologies, Part I: Heat storage materials and techniques. Energy Conversion and Management, Vol. 39, No. 11, 1998, pp.1127–38.

[5]. Zalba B, Marin J, Cabeza LF, Mehling H. (2003) Review on thermal energy storage with phase change: materials, heat transfer analysis and applications, Appl. Thermal Eng. Vol. 23, No. 3, 2003, pp.251-83.