Experimental research on a kind of novel high temperature phase change storage heater

In this paper, a kind of novel high temperature phase change storage heater was developed that can shift electricity from peak periods to off peak periods to provide significant economic benefit. A series of experiments were conducted to test the heat charge and discharge performance of this kind of heater. The results show that: (1) with high heat of fusion and thermal conductivity, AlSi12 is a suitable heat storage medium; (2) the heat storage ratio of the heater is high and increases with increasing heating power; (3) during the phase change process, the heater can provide a stable heat discharge rate and meet the demand for thermal comfort indoors to some extent; and (4) the heater is economical for domestic space heating because of low operating cost. Besides, the experimental results provide the data for further modeling and optimization of such high temperature phase change storage heaters.

[1]  M. Farid,et al.  Performance of direct contact latent heat storage units with two hydrated salts , 1994 .

[2]  Amar M. Khudhair,et al.  A review on phase change energy storage: materials and applications , 2004 .

[3]  S. M. Hasnain.  Review on sustainable thermal energy storage technologies, Part I: heat storage materials and techniques , 1998 .

[4]  Marcel Lacroix,et al.  Study of the thermal performance of a multi-layer PCM storage unit , 1996 .

[5]  Marcel Lacroix,et al.  Thermal performance of a latent heat energy storage ventilated panel for electric load management , 1999 .

[6]  Hazim B. Awbi,et al.  Design considerations for naturally ventilated buildings , 1994 .

[7]  M. Farid,et al.  An electrical storage heater using the phase-change method of heat storage , 1990 .

[8]  D. Buddhi,et al.  Solar cooker with latent heat storage: Design and experimental testing , 1997 .

[9]  Maria Barrio,et al.  Floor radiant system with heat storage by a solid-solid phase transition material , 1992 .

[10]  A. Sari,et al.  Thermal performance of palmitic acid as a phase change energy storage material , 2002 .

[11]  M. Lacroix,et al.  Experimental improvements of heat transfer in a latent heat thermal energy storage unit with embedded heat sources , 1998 .

[12]  G. C. Bakos.  Energy management method for auxiliary energy saving in a passive-solar-heated residence using low-cost off-peak electricity , 2000 .

[13]  Experimental and analytical phase change heat transfer , 1998 .