Contactless liquid crystal and radiation thermography by example of boiling heat transfer investigations

• Autorzy: Piasecka M. , Poniewski M. E.
• Konferencja: "Modelling of Multiphase Flows in Thermo-Chemical Systems. Advanced Measurement Techniques" / sympozjum [5th; September 2nd - 4th, 2005; Stawiska near Gdansk, Poland]
• Języki publikacji: EN

Abstrakty

EN

The paper discusses two contactless methods for determining temperature fields in boiling heat transfer investigations in minichannel flow, namely: liquid crystal thermography and thermovision. Liquid crystal thermography was used to identify temperature distribution on the minichannel heating surface, which made it possible to determine boiling incipience. A thermovision camera recorded temperature distribution on the glass (insulation) covering the heating surface, which prevented losses to the environment. Exemplary results obtained with two measurement techniques were included.

Słowa kluczowe

EN

liquid crystal thermography; boiling; heat transfer; minichannel

PL

termografia ciekłokrystaliczna; wrzenie; transport ciepła; minikanał

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Turbulence : international journal
• Rocznik: 2005
• Tom: Vol. 11
• Strony: 35--44
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Piasecka M.

• Kielce University of Technology, Chair of Thermodynamics and Fluid Mechanlcs 1000-lecia PP 7, 25-313 Kielce, Pdand

autor

Poniewski M. E.

• Kielce University of Technology, Chair of Thermodynamics and Fluid Mechanlcs 1000-lecia PP 7, 25-313 Kielce, Pdand

Bibliografia

• [1] Piasecka M., Poniewski M.E., Liquid crystai thermography applied to investigations into heat transfer in minichanels, Metrology and Measurement Systems 2004, 11,3, 259-274.
• [2] Piasecka M., Investigations on flow boiling heat trasfer in minichannels, Turbulence 2004, 10,111-122.
• [3] Piasecka M., Hożejowska S., Poniewski M.E., Expetimental evaluation of flow boiling incipience of subcooled fluid in a narrow channel, International Journal of Heat and Fluid Flow 2004, 25, 159-172.
• [4] Piasecka M., Poniewski M.E., The onset of refrigerant R-123 flow boiling in a narrow vertical channel, Archives of Thermodynamics 2003, 24, 2, 19-35
• [5] Piasecka M., Poniewski M.E., Hysteresis phenomena at the onset of subcooled nucleate flow boiling in microchannels, Heat Transfer Engineering Journal 2004, 25, 3, 44-51.
• [6] Piasecka M., Hożejowska S., Poniewski M.E., Experimental error analysis and heat polynomial method improvement for boiling heat transfer numerical calculations in minichannels, 3rd Int. Conf. on Microchannels and Minichannels, Toronto, Canada, 2005, paper ICMM2005-75142 (pp. 8).
• [7] Piasecka M., Poniewski M.E., Flow boiling incipience in minichannels, 3rd Int. Symp. onTwo-phase Flow Modelling and Experimentation, Pisa, Itaiy, 2004, paper mt-13 (pp. 8).