Journal cover Journal topic
Mechanical Sciences An open-access journal for theoretical and applied mechanics
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.052 IF 1.052
  • IF 5-year value: 1.567 IF 5-year
    1.567
  • CiteScore value: 1.92 CiteScore
    1.92
  • SNIP value: 1.214 SNIP 1.214
  • IPP value: 1.47 IPP 1.47
  • SJR value: 0.367 SJR 0.367
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 18 Scimago H
    index 18
  • h5-index value: 16 h5-index 16
Supported by
Logo Library of Delft University of Technology Logo NWO
Affiliated to
Logo iftomm
Volume 6, issue 2
Mech. Sci., 6, 181-190, 2015
https://doi.org/10.5194/ms-6-181-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Mech. Sci., 6, 181-190, 2015
https://doi.org/10.5194/ms-6-181-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 11 Sep 2015

Research article | 11 Sep 2015

Experimental study on transient behavior of embedded spiral-coil heat exchanger

E. I. Jassim E. I. Jassim
  • Department of Mechanical Engineering, Prince Mohammad Bin Fahd University, PMU, Al-Khobar, Saudi Arabia

Abstract. Spiral coil offers a substantial amount of heat transfer area at a considerably low cost as it does not only have a lower wall resistance but it also achieves a better heat transfer rate in comparison to conventional U-tube arrangement. The general aim of the study is to assess different configurations of spiral coil heat exchangers that can eventually operate in a highly efficient manner.

The paper documents the transient behavior of spiral-shaped tubes when the coil is embedded in a rectangular conducting slab. Different arrangements and number of turns per unit length, with fixed volumes, are considered in order to figure out the optimal configuration that maximizes the performance of the heat transfer. The implementation presented in the study is conducted to demonstrate the viability of the use of a large conducting body as supplemental heat storage.

The system uses flowing water in the coil and stagnant water in the container. The copper-made coils situated in the center of the slab carries the cold fluid while the container fluid acts as a storage-medium. The water temperature at several depths of the container was measured to ensure uniformity in the temperature distribution of the container medium. Results have shown that the coil orientation, the number of loops, and the Reynolds number, substantially influence the rate of the heat transfer. The vertically-embedded spiral coil has a better performance than the horizontally-embedded spiral coil. Doubling the number of loops is shown to enhance the performance of the coil. Increasing Reynolds Number leads to better coil performance.

Publications Copernicus
Download
Short summary
The study addresses the significance of the coil geometry, number of turns, orientation, and mass flow on heat transfer performance. The outcome proves experimentally that such parameters have substantial impact on the rate of heat transfer as well as coil effectiveness. The study outcome is beneficial to wide technical sectors whose have interest in utilizing water pool as a coolant medium such as oil and gas companies, power plants, petrochemicals industries, and other firms.
The study addresses the significance of the coil geometry, number of turns, orientation, and...
Citation
Share