PREDICTION OF PRESSURE DROP DURING SWIRL FOLW BOILING OF R-134A INSIDE A ORIZONTAL TUBE

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AKHAVAN BEHABADI M.A.; JAMALI ASHTIANI M.; MOHAMMADPOUR AMIR

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Journal: Sharif Journal of Civil Engineering Year:2008 | Volume:24 | Issue:44 Page(s): 93-98

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Title

PREDICTION OF PRESSURE DROP DURING SWIRL FOLW BOILING OF R-134A INSIDE A ORIZONTAL TUBE

Author(s)

AKHAVAN BEHABADI M.A. | JAMALI ASHTIANI M. | MOHAMMADPOUR AMIR | Issue Writer Certificate

Keywords

PRESSURE DROPQ2

TWO PHASE FLOWQ3

TWISTED TAPEQ3

BOILINGQ3

R-134AQ3

Abstract

In the present work, an investigation into PRESSURE DROP during swirl flow BOILING of refrigerant R-134A inside a horizontal tube has been undertaken to do so. TWISTED TAPE inserts, with twist ratios of 6, 9, 12 and 15 were employed inside the evaporator tube. The test set-up used in this investigation was a well instrumented vapor compression refrigeration system. This set-up consisted of three electrically heated evaporators called pre evaporator, test evaporator and after evaporator. First, a correlation was developed to predict the PRESSURE DROP inside the plain tube by using the experimental data. Then based on the collected data for the plain tube and the tubes with TWISTED TAPE inserts, two correlations were developed to predict the PRESSURE DROP inside the TWISTED TAPE inserted tubes. The predicted PRESSURE DROP by these correlations fell with an error band of ± 15% of the experimental PRESSURE DROP data. Generally, the insertion of TWISTED TAPE inside a horizontal tube, increases the PRESSURE DROP. In the worst condition, the flow BOILING PRESSURE DROP increases up to 180% and, as an average, up to 100% relative to plain tube values on a nominal area basis.

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APA: Copy

AKHAVAN BEHABADI, M.A., JAMALI ASHTIANI, M., & MOHAMMADPOUR, AMIR. (2008). PREDICTION OF PRESSURE DROP DURING SWIRL FOLW BOILING OF R-134A INSIDE A ORIZONTAL TUBE. SHARIF: CIVIL ENINEERING, 24(44), 93-98. SID. https://sid.ir/paper/128092/en

Vancouver: Copy

AKHAVAN BEHABADI M.A., JAMALI ASHTIANI M., MOHAMMADPOUR AMIR. PREDICTION OF PRESSURE DROP DURING SWIRL FOLW BOILING OF R-134A INSIDE A ORIZONTAL TUBE. SHARIF: CIVIL ENINEERING[Internet]. 2008;24(44):93-98. Available from: https://sid.ir/paper/128092/en

IEEE: Copy

M.A. AKHAVAN BEHABADI, M. JAMALI ASHTIANI, and AMIR MOHAMMADPOUR, “PREDICTION OF PRESSURE DROP DURING SWIRL FOLW BOILING OF R-134A INSIDE A ORIZONTAL TUBE,” SHARIF: CIVIL ENINEERING, vol. 24, no. 44, pp. 93–98, 2008, [Online]. Available: https://sid.ir/paper/128092/en

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