Effect of superficial velocity on vaporization pressure drop with propane in horizontal circular tube

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Abstract

Due to its friendly effect on the environment, natural refrigerants could be the best alternative refrigerant to replace conventional refrigerants. The present study was devoted to the effect of superficial velocity on vaporization pressure drop with propane in a horizontal circular tube with an inner diameter of 7.6 mm. The experiments were conditioned with 4 to 10 °C for saturation temperature, 9 to 20 kW/m2 for heat flux, and 250 to 380 kg/m2s for mass flux. It is shown here that increased heat flux may result in increasing vapor superficial velocity, and then increasing pressure drop. The present experimental results were evaluated with some existing correlations of pressure drop. The best prediction was evaluated by Lockhart-Martinelli (1949) with MARD 25.7%. In order to observe the experimental flow pattern, the present results were also mapped on the Wang flow pattern map.

Original languageEnglish
Title of host publicationProceedings of the 3rd AUN/SEED-NET Regional Conference on Energy Engineering and the 7th International Conference on Thermofluids, RCEnE/THERMOFLUID 2015
EditorsTetsushi Biwa, Samsul Kamal, Hideaki Ohgaki, Jun Tanimoto, Chaiwat Nuthong, Adhika Widyaparaga, Keiichi N. Ishihara, Harwin Saptoadi, Jayan Sentanuhady, Deendarlianto, Zainal Alimuddin b. Zainal Alauddin, Iman Reksowardojo, Indarto, Yasuyuki Takata, Indro Pranoto
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413917
DOIs
Publication statusPublished - 3 Jun 2016
Event3rd AUN/SEED-NET Regional Conference on Energy Engineering and the 7th International Conference on Thermofluids, RCEnE/THERMOFLUID 2015 - Yogyakarta, Indonesia
Duration: 19 Nov 201520 Nov 2015

Publication series

NameAIP Conference Proceedings
Volume1737
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd AUN/SEED-NET Regional Conference on Energy Engineering and the 7th International Conference on Thermofluids, RCEnE/THERMOFLUID 2015
CountryIndonesia
CityYogyakarta
Period19/11/1520/11/15

Keywords

  • Effect of superficial velocity
  • pressure drop
  • refrigerant
  • two-phase flow

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