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Title: Effects of waffle height on the air-side performance of wavy fin-and-tube heat exchangers

Abstract

An experimental study was carried out to examine the effects of the waffle height, including three different values of waffle height--1.18, 1.32, and 1.58 mm--on the heat transfer and friction characteristics of typical fin-and-tube heat exchangers having wavy fins. A total of 13 samples of heat exchangers, nine of them having wavy fins and the other four having plan fin configurations, were tested. The test results indicated that the effect of waffle height on the heat transfer enhancement ratio, compared to the plain-fin counterpart, is pronounced only for smaller fin pitch and larger waffle height, while its effect on the pressure drop is considerably significant throughout the test range.

Authors:
; ;
Publication Date:
Research Org.:
Industrial Technology Research Inst., Hsinchu (TW)
OSTI Identifier:
20001221
Alternate Identifier(s):
OSTI ID: 20001221
Resource Type:
Journal Article
Journal Name:
Heat Transfer Engineering
Additional Journal Information:
Journal Volume: 20; Journal Issue: 3; Other Information: PBD: Jul-Sep 1999; Journal ID: ISSN 0145-7632
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; HEAT EXCHANGERS; HEAT TRANSFER; AUGMENTATION; FINS; PERFORMANCE; ENERGY EFFICIENCY

Citation Formats

Wang, C.C., Chang, J.Y., and Chiou, N.F. Effects of waffle height on the air-side performance of wavy fin-and-tube heat exchangers. United States: N. p., 1999. Web. doi:10.1080/014576399271411.
Wang, C.C., Chang, J.Y., & Chiou, N.F. Effects of waffle height on the air-side performance of wavy fin-and-tube heat exchangers. United States. doi:10.1080/014576399271411.
Wang, C.C., Chang, J.Y., and Chiou, N.F. Wed . "Effects of waffle height on the air-side performance of wavy fin-and-tube heat exchangers". United States. doi:10.1080/014576399271411.
@article{osti_20001221,
title = {Effects of waffle height on the air-side performance of wavy fin-and-tube heat exchangers},
author = {Wang, C.C. and Chang, J.Y. and Chiou, N.F.},
abstractNote = {An experimental study was carried out to examine the effects of the waffle height, including three different values of waffle height--1.18, 1.32, and 1.58 mm--on the heat transfer and friction characteristics of typical fin-and-tube heat exchangers having wavy fins. A total of 13 samples of heat exchangers, nine of them having wavy fins and the other four having plan fin configurations, were tested. The test results indicated that the effect of waffle height on the heat transfer enhancement ratio, compared to the plain-fin counterpart, is pronounced only for smaller fin pitch and larger waffle height, while its effect on the pressure drop is considerably significant throughout the test range.},
doi = {10.1080/014576399271411},
journal = {Heat Transfer Engineering},
issn = {0145-7632},
number = 3,
volume = 20,
place = {United States},
year = {1999},
month = {9}
}