News Updates Wednesday 23rd Jan 2019 :
  • Welcome to INPRESSCO, world's leading publishers, We have served more than 10000+ authors
  • Articles are invited in engineering, science, technology, management, industrial engg, biotechnology etc.
  • Paper submission last date of Jan/Feb 2019 is 26 Jan 2019, Submit online or at
  • Our journals are indexed in NAAS, University of Regensburg Germany, Google Scholar, Cross Ref etc.
  • DOI is given to all articles

Experimental Study of Falling Film Heat Transfer on a Horizontal Tube of an Evaporative Tubular Heat Dissipator

Author : Rajneesh and Raj Kumar

Pages : 940-949
Download PDF

The present article deals with the experimental investigation of onset and permanent dry out heat flux and mass transfer coefficient at which dry patch formation just starts and permanent condition of dry patch takes place over the surface of a tube of evaporative tubular heat dissipator. A single horizontal tube of evaporative tubular heat dissipator through which hot fluid is flowing is subjected to simultaneous flows of water from the top and air flow from underneath the test unit, with controlled amount of moisture. The primary objective of the present study is to derive the correlations of onset and permanent dry out heat flux and mass transfer coefficients in terms of dimensionless numbers, using the multiple regression analysis of the experimental observations at a wide range of operating variables. The present empirical results show good agreement with the experimental results. Derived correlations from experimental data show that as the film flow rate increases, heat flux needed to cause a permanent or temporary dry patch formation increases provided that the air flow rate is constant. Mass transfer coefficients pertaining to onset and permanent dry patches are also estimated over a wide range of operating conditions. Correlations derived are helpful in improvement of the design of heat transfer devices and many other engineering applications.

Keywords: Horizontal Tube, Heat Dissipator, Heat Transfer

Article published in International Journal of Current  Engineering  and Technology, Vol.3,No.3(Aug- 2013)



Call for Papers
  1. IJCET- Jan/Feb 2019 Issue

    Submission Last Date
    26 Jan
  2. DOI is given to all articles
  3. Current Issue
  4. IJTT-March-2019
  5. IJAIE-March-2019
  6. IJCSB-March-2019
  • Inpressco Google Scholar
  • Inpressco Science Central
  • Inpressco Global impact factor
  • Inpressco aap

International Press corporation is licensed under a Creative Commons Attribution-Non Commercial NoDerivs 3.0 Unported License
©2010-2018 INPRESSCO® All Rights Reserved