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Comparison of the Effects of Straight and Twisted Heat Trace Installations Based on Three-dimensional Unsteady Heat Transfer
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  • Journal title : Fire Science and Engineering
  • Volume 30, Issue 1,  2016, pp.49-56
  • Publisher : Korea Institute of Fire Science and Engineering
  • DOI : 10.7731/KIFSE.2016.30.1.049
 Title & Authors
Comparison of the Effects of Straight and Twisted Heat Trace Installations Based on Three-dimensional Unsteady Heat Transfer
Choi, Myoung-Young; Jeon, Byoung-Jin; Choi, Hyoung-Gwon;
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This paper numerically examines, straight and twisted electrical heat trace installations for their anti-freezing effects on water inside a pipe. The unsteady incompressible Navier-Stokes equations coupled with an energy equation were solved to compare the two installation methods. The heat conduction of the pipe with a heat source interacts with the natural convection of the water, and the conjugate heat transfer was considered using a commercial code (ANSYS-FLUENT) based on a SIMPLE-type algorithm. Numerical experiments, were done to investigate the isotherms and the vector fields in the water region to extract the evolutions of the minimum and maximum temperatures of the water inside the pipe. There was no substantial difference in the anti-freezing effects between the straight and twisted. Therefore, the straight installation is recommended after considering the damage and short circuit behavior of the electrical heat trace.
Anti-freeze;Heat trace;Twisted installation;Straight installation;Conjugate heat transfer;
 Cited by
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