Passive heat transfer enhancement techniques applied to compact bubble absorber design

T. L. Merrill, T. Setoguchi, H. Perez-Blanco

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This paper presents performance results and analysis for three compact bubble absorbers developed for generator-absorber heat exchange absorption cycles (GAX). The absorbers employ passive heat transfer enhancement techniques, namely repeated roughness, spiral flutes, and internal spacers. The selection of enhancement techniques was done after a controlling heat transfer resistance analysis of a baseline absorber was completed. Experimental results showed that the enhancement increased the GAX load, increased the vapor flow rate, and decreased the approach temperature difference when compared to the baseline values. However, the performance of each enhanced absorber remained below design goals. Both the vapor injection process and the interior heat transfer coefficient calculation methodology need further improvement to reach design goals.

Original languageEnglish (US)
Pages (from-to)199-208
Number of pages10
JournalJournal of Enhanced Heat Transfer
Volume2
Issue number3
DOIs
StatePublished - Jan 1 1995

Fingerprint

absorbers
bubbles
heat transfer
Vapors
Heat transfer
augmentation
Heat transfer coefficients
Surface roughness
Flow rate
vapors
heat transfer coefficients
spacers
temperature gradients
roughness
generators
Temperature
flow velocity
methodology
injection
heat

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

@article{58fad00c508442da977ea748830fa87a,
title = "Passive heat transfer enhancement techniques applied to compact bubble absorber design",
abstract = "This paper presents performance results and analysis for three compact bubble absorbers developed for generator-absorber heat exchange absorption cycles (GAX). The absorbers employ passive heat transfer enhancement techniques, namely repeated roughness, spiral flutes, and internal spacers. The selection of enhancement techniques was done after a controlling heat transfer resistance analysis of a baseline absorber was completed. Experimental results showed that the enhancement increased the GAX load, increased the vapor flow rate, and decreased the approach temperature difference when compared to the baseline values. However, the performance of each enhanced absorber remained below design goals. Both the vapor injection process and the interior heat transfer coefficient calculation methodology need further improvement to reach design goals.",
author = "Merrill, {T. L.} and T. Setoguchi and H. Perez-Blanco",
year = "1995",
month = "1",
day = "1",
doi = "10.1615/JEnhHeatTransf.v2.i3.30",
language = "English (US)",
volume = "2",
pages = "199--208",
journal = "Journal of Enhanced Heat Transfer",
issn = "1065-5131",
publisher = "Begell House Inc.",
number = "3",

}

Passive heat transfer enhancement techniques applied to compact bubble absorber design. / Merrill, T. L.; Setoguchi, T.; Perez-Blanco, H.

In: Journal of Enhanced Heat Transfer, Vol. 2, No. 3, 01.01.1995, p. 199-208.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Passive heat transfer enhancement techniques applied to compact bubble absorber design

AU - Merrill, T. L.

AU - Setoguchi, T.

AU - Perez-Blanco, H.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - This paper presents performance results and analysis for three compact bubble absorbers developed for generator-absorber heat exchange absorption cycles (GAX). The absorbers employ passive heat transfer enhancement techniques, namely repeated roughness, spiral flutes, and internal spacers. The selection of enhancement techniques was done after a controlling heat transfer resistance analysis of a baseline absorber was completed. Experimental results showed that the enhancement increased the GAX load, increased the vapor flow rate, and decreased the approach temperature difference when compared to the baseline values. However, the performance of each enhanced absorber remained below design goals. Both the vapor injection process and the interior heat transfer coefficient calculation methodology need further improvement to reach design goals.

AB - This paper presents performance results and analysis for three compact bubble absorbers developed for generator-absorber heat exchange absorption cycles (GAX). The absorbers employ passive heat transfer enhancement techniques, namely repeated roughness, spiral flutes, and internal spacers. The selection of enhancement techniques was done after a controlling heat transfer resistance analysis of a baseline absorber was completed. Experimental results showed that the enhancement increased the GAX load, increased the vapor flow rate, and decreased the approach temperature difference when compared to the baseline values. However, the performance of each enhanced absorber remained below design goals. Both the vapor injection process and the interior heat transfer coefficient calculation methodology need further improvement to reach design goals.

UR - http://www.scopus.com/inward/record.url?scp=0029191332&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029191332&partnerID=8YFLogxK

U2 - 10.1615/JEnhHeatTransf.v2.i3.30

DO - 10.1615/JEnhHeatTransf.v2.i3.30

M3 - Article

AN - SCOPUS:0029191332

VL - 2

SP - 199

EP - 208

JO - Journal of Enhanced Heat Transfer

JF - Journal of Enhanced Heat Transfer

SN - 1065-5131

IS - 3

ER -