Experimental investigation on diabatic flow of R-134a through spiral capillary tube

Mohd.K. Khan, R. Kumar, P.K. Sahoo

Research output: Contribution to journalArticle

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Abstract

The present experimental investigation has been carried out to investigate the effects of various geometric parameters on the mass flow rate of R-134a through diabatic spiral capillary tube. In diabatic flow, the capillary tube is bonded with the compressor suction-line to form a counter-flow exchanger. The lateral type of diabatic capillary tube has been investigated in the present experimental study. The major geometric parameters investigated are capillary tube diameter, capillary tube length and coil pitch. In addition, effect of inlet subcooling on the mass flow rate through diabatic spiral capillary tube is also done. A comparison of the performance of diabatic spiral capillary tube has been made with adiabatic spiral capillary tube. Generalized empirical correlation for diabatic spiral capillary tube has also been proposed. It has been found that the predictions of the proposed correlation lie in the error band of ±7%. © 2009 Elsevier Ltd and IIR.
Original languageEnglish
Pages (from-to)261-271
Number of pages11
JournalInternational Journal of Refrigeration
Volume32
Issue number2
DOIs
Publication statusPublished - 2009

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Capillary tubes
Flow rate
Compressors

Cite this

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abstract = "The present experimental investigation has been carried out to investigate the effects of various geometric parameters on the mass flow rate of R-134a through diabatic spiral capillary tube. In diabatic flow, the capillary tube is bonded with the compressor suction-line to form a counter-flow exchanger. The lateral type of diabatic capillary tube has been investigated in the present experimental study. The major geometric parameters investigated are capillary tube diameter, capillary tube length and coil pitch. In addition, effect of inlet subcooling on the mass flow rate through diabatic spiral capillary tube is also done. A comparison of the performance of diabatic spiral capillary tube has been made with adiabatic spiral capillary tube. Generalized empirical correlation for diabatic spiral capillary tube has also been proposed. It has been found that the predictions of the proposed correlation lie in the error band of ±7{\%}. {\circledC} 2009 Elsevier Ltd and IIR.",
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Experimental investigation on diabatic flow of R-134a through spiral capillary tube. / Khan, Mohd.K.; Kumar, R.; Sahoo, P.K.

In: International Journal of Refrigeration, Vol. 32, No. 2, 2009, p. 261-271.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental investigation on diabatic flow of R-134a through spiral capillary tube

AU - Khan, Mohd.K.

AU - Kumar, R.

AU - Sahoo, P.K.

N1 - Cited By :10 Export Date: 19 June 2018

PY - 2009

Y1 - 2009

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AB - The present experimental investigation has been carried out to investigate the effects of various geometric parameters on the mass flow rate of R-134a through diabatic spiral capillary tube. In diabatic flow, the capillary tube is bonded with the compressor suction-line to form a counter-flow exchanger. The lateral type of diabatic capillary tube has been investigated in the present experimental study. The major geometric parameters investigated are capillary tube diameter, capillary tube length and coil pitch. In addition, effect of inlet subcooling on the mass flow rate through diabatic spiral capillary tube is also done. A comparison of the performance of diabatic spiral capillary tube has been made with adiabatic spiral capillary tube. Generalized empirical correlation for diabatic spiral capillary tube has also been proposed. It has been found that the predictions of the proposed correlation lie in the error band of ±7%. © 2009 Elsevier Ltd and IIR.

U2 - 10.1016/j.ijrefrig.2008.05.010

DO - 10.1016/j.ijrefrig.2008.05.010

M3 - Article

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EP - 271

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

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