A Study Regarding the Unsteady Heat Transfer and Phase Change

Abstract:

The paper presents the experimental and theoretical study for temperature distribution around the cooling pipes of an ice rink pad. The heat transfer in the skating rink track is nonstationary and phase changing. In case of skating rinks equipped with pipe registers, the temperature field during the ice formation process can’t be modeled by analytical methods. The experimental research was targeted on finding the temperatures in several points of the pad and also details on ice shape and quality around the pipes. The temperatures measured on the skating ring surface using thermocouples is impossible due to the larger diameter of the thermocouple bulb compared with the air-water surfaces thickness. For this reason we used to measure the temperature by thermography method, thus reducing the errors The experimental results were compared against the numerical modeling using finite elements.

• Periodical: Applied Mechanics and Materials (Volume 659)
• Pages: 353-358
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.659.353
• Online since: October 2014
• Authors: Gelu Coman*, Cristian Iosifescu, Valeriu Damian
• Keywords: Ice, Phase Change, Skating Rink, Solidification, Unsteady Heat Transfer

References

[1] Lewis R.W., Roberts P.M. - Finite element simulation of solidification problems. App. Scientific Research, Vol. 44, pp.61-92 (1987).

DOI: 10.1007/bf00412007

[2] Sasaguchi K., Viskanta R. - Phase-change heat transfer during melting and resolidification of melt around cylindrical heat source(s)/Sinks, Jl. of Energy Resources Technology, vol. 111, (1989).

DOI: 10.1115/1.3231400

[3] K. Uzuneanu, T. Panait, M. Drǎgan, Modeling the heat transfer in the piston head of a spark ignition engine supplied with ethanol- gasoline blend, Termotehnica, ISSN 1222-4057, (2008) 31-34.

[4] ** - FLUENT Inc, Fluent user's guide (2003).

[5] M. Dragan, Termoeconomie, editura Zigotto, (2010).

[6] V. Damian, M. Dragan , Termotehnica, Europlus, Galati, (2006).

[7] ** - Dixell XWEB500, Operator's manual, (2004).

[8] ** - Thermovision A 20, Flir Systems Inc, Operator's manual (2004).