0
TECHNICAL PAPERS

Thermal Analysis of Polymer Heat Exchangers for Solar Water Heating: A Case Study

[+] Author and Article Information
Wei Liu, Jane Davidson, Susan Mantell

Department of Mechanical Engineering, University of Minnesota, 111 Church St., S.E. Minneapolis, MN 55455

J. Sol. Energy Eng 122(2), 84-91 (May 01, 2000) (8 pages) doi:10.1115/1.1288027 History: Received December 01, 1999; Revised May 01, 2000
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

Building Officials & Code Administrators International, Inc. (BOCA), 1993, “National Plumbing Code,” 4051 W. Flossmoor Rd., Country Club Hills, IL 60478.
Southern Building Code Congress International, Inc. (SBCCI), 1994, “Standard Plumbing Code,” 900 Montclair Rd., Birmingham, AL 35213-1206.
“International Plumbing Code,” 1995, Available from Building Officials & Code Administrators International, Inc. (BOCA), International Association of Plumbing and Mechanical Officials (IAPMO), and Southern Building Code Congress International, Inc. (SBCCI).
Solar Rating and Certification Corporation (SRCC), 1995, “Operating Guidelines and Minimum Standards for Certifying Solar Water Heating Systems: An Optional SWH System Certification and Rating Program,” c/o FSEC, 1679 Clearlake Rd., Cocoa, FL.
National Association of Plumbing-Heating-Cooling Contractors (NAPHCC), 1996, “National Standard Plumbing Code,” P.O. Box 6808, Falls Church, VA 22046.
International Association of Plumbing and Mechanical Officials (IAPMO), 1997, “Uniform Plumbing Code,” 20001 Walnut Drive South, Walnut, CA 91789-2825.
Vliet, G., and Baker, D., 1998, “Designing Solar Hot Water Systems for Scaning Environments,” Proceedings, 1998 Annual Conference American Solar Energy Society, Albuquerque, NM, pp. 307–312.
Xu, H., Phelan, P. E., and Wood, B. D., 1999, “Analysis of the Conductive Resistance of Double-Walled Heat Exchangers,” Proceedings, Renewable and Advanced Energy Systems for the 21st Century, RAES99-7680, Maui, Hawaii.
ASTM, 1999, “Standard D638: Test Method for Tensile Properties of Plastics,” American Society of Testing and Materials, Philadelphia.
Raman,  R., Mantell,  S., and Davidson,  J. H., 2000, “A Review of Polymer Materials for Solar Water Heating Systems,” ASME J. Sol. Energy Eng., 122, pp. 92–100.
Raman, R., Mantell, S., and Davidson, J. H., 1999, “Are Plastic Heat Exchangers Feasible for Solar Water Heaters? Part II: Material Choices,” Proceedings, Renewable and Advanced Energy Systems for the 21st Century, RAES99-7683, Maui, Hawaii.
Tacey, C., Technical Consultant, 1998, personal communication, chuck.tacey@usa.dupont.com, DuPont Engineering Polymers, Wilmington, Delaware.
Raman, R., 1999, “Mechanical Design of a Polymer Liquid to Liquid Heat Exchanger,” Master’s Thesis, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN.
ASTM, 1998, “Standard F877-97b: Standard Specification for Crosslinked Polyethylene (PEX) Plastic Hot- and Cold-Water Distribution Systems,” American Society of Testing and Materials, Philadelphia.
Wirsbo, 1997, “Material Properties: Test Data and Approvals for Wirsbo-PEX Tubing,” Wirsbo Company, Minneapolis, MN.
Holman, J. P., 1990, Heat Transfer, 7th ed., McGraw-Hill, pp. 283-297.
Su,  B., and El-Genk,  M. S., 1993, “Forced Convection of Water in Rod-Bundles,” Int. Commun. Heat Mass Transfer, 20, pp. 295–300.
Morgan,  V. T., 1975, “The Overall Convective Heat Transfer from Smooth Circular Cylinders,” Adv. Heat Transfer, 11, pp. 199–264.
Lienhard,  J. H., 1973, “On the Commonality of Equations for Natural Convection from Immersed Bodies,” Int. J. Heat Mass Transf., 16, pp. 2121–2123.
Farrington, R. B., and Bingham, C. E., 1986, “Testing and Analysis of Immersed Heat Exchangers,” Solar Energy Research Institute, SERI/TR-253-2866.
Newton, B. J., Schmid, M., Mitchell, J. W., and Beckman, W. A., 1995, “Storage Tank Models,” Proceedings, 1995 ASME/JSME/JSES International Solar Energy Conference, ASME, New York, NY, USA, Vol. 2 , pp. 1111–1116.

Figures

Grahic Jump Location
Configurations of PEX and nylon tube-in-shell heat exchangers. [(a) Sketch of tube-in-shell heat exchanger; (b) PEX tube-in-shell configurations; (c) nylon tube-in-shell configurations.]
Grahic Jump Location
Configurations of PEX and nylon immersed tube bundles. [(a) Sketch of immersed tube bundle; (b) PEX immersed tube bundle configurations; (c) nylon immersed tube bundle configurations.]
Grahic Jump Location
Required lengths of 3000 W and 6000 W PEX tube-in-shell heat exchangers
Grahic Jump Location
Thermal resistance ratios for the 3000 W PEX tube-in-shell heat exchangers
Grahic Jump Location
Required lengths of 3000 W and 6000 W nylon tube-in-shell heat exchangers
Grahic Jump Location
Thermal resistance ratios for the 3000 W nylon tube-in-shell heat exchangers
Grahic Jump Location
Inside heat transfer surface area required for 3000 W and 6000 W copper and nylon tube-in-shell heat exchangers
Grahic Jump Location
Required lengths of 3000 W and 6000 W PEX immersed tube bundles
Grahic Jump Location
Thermal resistance ratios for the 3000 W PEX immersed tube bundle
Grahic Jump Location
Required lengths of 3000 W and 6000 W nylon immersed tube bundles
Grahic Jump Location
Thermal resistance ratios for the 3000 W nylon immersed tube bundle
Grahic Jump Location
Pressure drop and total tube length versus number of tubes for a 3000 W immersed nylon tube bundle with tube side flow rate of 5.7 L/min
Grahic Jump Location
Comparison of heat transfer surface areas for 3000 W nylon, PEX and copper immersed heat exchangers

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