Research Papers

Semitheoretical Model of an Evaporator to Reduce Design Cycle Time

[+] Author and Article Information
David Zietlow

 Bradley University, Peoria, IL 61625dzietlow@bradley.edu

Dan A. Spurgeon

 Caterpillar, Inc., 100 N.E. Adams, Peoria, IL 61602spurgeon_daniel_a@cat.com

J. Thermal Sci. Eng. Appl 1(3), 031005 (Mar 03, 2010) (6 pages) doi:10.1115/1.3202791 History: Received July 25, 2008; Revised July 16, 2009; Published March 03, 2010; Online March 03, 2010

Original equipment manufacturers are looking for ways to reduce the product development cycle. A tool to reduce this time in the design of air conditioning systems is introduced in this paper. This is done by using a semitheoretical model of each of the components of a system. The semitheoretical model has the advantage of reducing the number of geometrical inputs that need to be specified when compared with a “theoretical” model. This paper focuses on the most complex of the components—the evaporator. A tube and fin evaporator was successfully modeled and validated. The model was tuned using supplier component data (Luvata, 2005, Heatcraft Evaporator—Version B-DHLEX.EVP) for the evaporator. The tuned accuracy of heat transfer rate and pressure drop, both air- and refrigerant-side, was within 5% over the range of conditions representative of air conditioning applications.

Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Figure 3

Schematic illustrating input/output data for predictive model

Grahic Jump Location
Figure 4

Validation in heat transfer rate model after tuning

Grahic Jump Location
Figure 5

Predictive capabilities of the heat transfer model

Grahic Jump Location
Figure 6

Design example showing influence of heat exchanger area on heat transfer rate

Grahic Jump Location
Figure 1

Schematic of tube cross section

Grahic Jump Location
Figure 2

Flow chart of modeling process. See Table 2 to ensure the operating conditions do not exceed that of the model.



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