Analysis of heat transfer coefficient during refrigerant condensation in vertical pipe minichannel

• Autorzy: Bohdal T. , Kruzel M. , Sikora M.
• Języki publikacji: EN

Abstrakty

EN

This article presents the results of experimental research of R404A, R407C and R410A high-pressure refrigerants condensation in vertical pipe minichannels with an internal diameter d below 2,5 mm. The study determined the local and average heat transfer coefficient in the full range of vapor quality, x= 1-0. On the basis of experimental investigations, the dependence of heat transfer coefficient on the vapor quality x, the mass flux density G and the channel internal diameter d was obtained.

Słowa kluczowe

EN

heat transfer coefficient; heat flux density; minichannel; vapor quality

PL

współczynnik przenikania ciepła; gęstość strumienia ciepła; minikanał; jakość pary

• Wydawca: Wydawnictwo Uczelniane Politechniki Koszalińskiej
• Czasopismo: Journal of Mechanical and Energy Engineering
• Rocznik: 2017
• Tom: Vol. 1, No 1
• Strony: 65--70
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Bohdal T.

• Faculty of Mechanical Engineering, Department of Energetics, Koszalin University of Technology, Raclawicka 15-17, 75-620, Koszalin, Poland

autor

Kruzel M.

• Faculty of Mechanical Engineering, Department of Energetics, Koszalin University of Technology, Raclawicka 15-17, 75-620, Koszalin, Poland

autor

Sikora M.

• Faculty of Mechanical Engineering, Department of Energetics, Koszalin University of Technology, Raclawicka 15-17, 75-620, Koszalin, Poland

Bibliografia

• 1. Li Q., Flamant G., Xigang Yuan X., Neveu P., Luo L., 2011. Compact heat exchangers: A review and future applications for a new generation of high temperature solar receivers. Renewable and Sustainable Energy Reviews15: 4855–4875.
• 2. A review and future applications for a new generation of high temperature solar receivers. Renewable and Sustainable Energy Reviews 15: 4855–4875.
• 3. Kruzel M., 2012. Impact of variable facility performance to the production costs formation, Materiały IX Konferencji Studentów i Młodych Pracowników Nauki Wydziału Mechanicznego oraz V Ogólnopolskiej Konferencji Studenckich Kół Naukowych Uczelni Technicznych, Wydawnictwo Uczelniane Politechniki Koszalińskiej, s. 95-104.
• 4. Mudawar I., 2001. Assessment of high-heat-flux thermal management schemes. IEEE Trans Compon Packag Technol 24: 122e41.
• 5. Bohdal T., Charun H., Sikora M., 2015. Empirical study of heterogeneous refrigerant condensation in pipe minichannels. International Journal of Refrigeration 59: 210-223.
• 6. Daisuke J., Norihiro I., Shigeru K., 2016. Condensation of refrigerants in a multiport tube with rectangular minichannels, International Journal of Refrigeration 202-213.
• 7. López-Belchí A., Illán-Gómez F., García Cascales J. R., Vera García F., 2016. R32 and R410A condensation heat transfer coefficient and pressure drop within minichannel multiport tube. Experimental technique and measurements, Applied Thermal Engineering 105: 118-131.
• 8. Bohdal T., Charun H., Sikora M., 2011, Comparative investigations of the condensation of R134a and R404A refrigerants in pipe minichannels, International Journal of Heat and Mass Transfer Volume 54, Issues 9 April 2011, Pages 1963–1974.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).