0
Research Papers

Experimental Investigation of the Hydraulic and Thermal Performance of a Phase Change Material Slurry in the Heat Exchangers

[+] Author and Article Information
P. Zhang1

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, Chinazhangp@sjtu.edu.cn

Z. W. Ma, R. Z. Wang

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China

1

Corresponding author.

J. Thermal Sci. Eng. Appl 3(1), 011004 (Apr 01, 2011) (8 pages) doi:10.1115/1.4003666 History: Received September 29, 2010; Revised February 14, 2011; Published April 01, 2011; Online April 01, 2011

The application of phase change material slurry to the refrigeration and air conditioning system opens a new way for energy saving and reduction of the quantity of refrigerant in the system involved because it can serve as both the energy storage and the transportation media in the secondary loop, which is responsible for distributing the cooling power. In the present study, the experimental investigations of the forced flow and heat transfer characteristics of tetrabutylammonium bromide (TBAB) clathrate hydrate slurry (CHS) in both the plate heat exchanger (PHE) and the double-tube heat exchanger (DHE) are carried out. It is found out that the pressure drop in the PHE is about 3.0–50.0 kPa at the flow rate of 2.5–13.0 L/min (0.150.78m3h)and is about 1.0–27.0 kPa at the flow rate of 3.0–14.0 L/min (0.180.84m3h) in the DHE, which is nearly 2 times of that of the chilled water. The overall heat transfer coefficient is in the range of 2500–5000 W/(m2K) for TBAB CHS in the PHE and is about 15003500W/(m2K) in the DHE, which are both higher than that of TBAB aqueous solution flow because of the involvement of the phase change of TBAB CHS.

FIGURES IN THIS ARTICLE
<>
Copyright © 2011 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

The appearance of type B TBAB hydrate crystal (8)

Grahic Jump Location
Figure 2

Phase diagram of TBAB CHS (8)

Grahic Jump Location
Figure 3

Schematics of the experimental setup

Grahic Jump Location
Figure 4

Schematics of the tested heat exchanger: (a) PHE and (b) DHE (all dimensions are in mm)

Grahic Jump Location
Figure 5

Pressure drops of water, TBAB aqueous solution, and TBAB CHS flowing through PHE: (a) without heat exchange and (b) with heat exchange

Grahic Jump Location
Figure 6

Pressure drops of water, TBAB aqueous solution, and TBAB CHS flowing through DHE with heat exchange

Grahic Jump Location
Figure 7

Comparisons of the loads on cold side and hot side: (a) PHE and (b) DHE

Grahic Jump Location
Figure 8

The effective specific heat of TBAB CHS and the corresponding enthalpy change (8)

Grahic Jump Location
Figure 9

Heat transfer rates of TBAB CHS, aqueous solution, and water flowing through (a) PHE and (b) DHE

Grahic Jump Location
Figure 10

Overall heat transfer coefficients in two heat exchangers: (a) PHE and (b) DHE

Grahic Jump Location
Figure 11

Comparison of the heat transfer coefficients obtained from Eqs. 8,9 with the experimental results: (a) PHE and (b) DHE

Grahic Jump Location
Figure 12

Cold side heat transfer coefficients in (a) PHE and (b) DHE

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In