Liquid-liquid direct contact heat exchange using a perfluorocarbon liquid for waste heat recovery: (Heat transfer characteristics obtained with perfluorocarbon droplets descending in a hot water medium)

Hideo Inaba; Akihiko Horibe; Koichi Ozaki; Naoki Yokoyama

doi:10.1299/jsmeb.43.52

Liquid-liquid direct contact heat exchange using a perfluorocarbon liquid for waste heat recovery: (Heat transfer characteristics obtained with perfluorocarbon droplets descending in a hot water medium)

Hideo Inaba, Akihiko Horibe, Koichi Ozaki, Naoki Yokoyama

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

This paper has dealt with the heat transfer characteristics of a liquid-liquid direct contact operation in which a Perfluorocarbon (PFC) liquid was released in a hot water stream, which was a low-grade heat source such as urban sewage, for the purpose of heat recovery from it. The paper reported on a set of experiments in which a PFC liquid (1 800 kg/m³ at 20°C) was continuously injected from a downward-facing single nozzle into a slow and upward flow of hot water and it was disintegrated into a lot of droplets and then they were heated from the ascending hot water. The experimental results revealed that the size distribution and flow behavior of the droplet ensembles exerted an influence on the coefficient of overall heat transfer between the droplet ensembles and hot water and also the temperature effectiveness for the droplet ensembles.

Original language	English
Pages (from-to)	52-61
Number of pages	10
Journal	JSME International Journal, Series B
Volume	43
Issue number	1
DOIs	https://doi.org/10.1299/jsmeb.43.52
Publication status	Published - Feb 2000

Keywords

Coefficient of overall heat transfer
Direct contact heat transfer
Natural convection
Perfluorocarbon liquid droplet
Temperature effectiveness

ASJC Scopus subject areas

Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

Access to Document

10.1299/jsmeb.43.52

Cite this

Liquid-liquid direct contact heat exchange using a perfluorocarbon liquid for waste heat recovery: (Heat transfer characteristics obtained with perfluorocarbon droplets descending in a hot water medium). / Inaba, Hideo; Horibe, Akihiko; Ozaki, Koichi et al.
In: JSME International Journal, Series B, Vol. 43, No. 1, 02.2000, p. 52-61.

Research output: Contribution to journal › Article › peer-review

@article{e1a3724a815d4fd789e4ce5434fbe10b,

title = "Liquid-liquid direct contact heat exchange using a perfluorocarbon liquid for waste heat recovery: (Heat transfer characteristics obtained with perfluorocarbon droplets descending in a hot water medium)",

abstract = "This paper has dealt with the heat transfer characteristics of a liquid-liquid direct contact operation in which a Perfluorocarbon (PFC) liquid was released in a hot water stream, which was a low-grade heat source such as urban sewage, for the purpose of heat recovery from it. The paper reported on a set of experiments in which a PFC liquid (1 800 kg/m3 at 20°C) was continuously injected from a downward-facing single nozzle into a slow and upward flow of hot water and it was disintegrated into a lot of droplets and then they were heated from the ascending hot water. The experimental results revealed that the size distribution and flow behavior of the droplet ensembles exerted an influence on the coefficient of overall heat transfer between the droplet ensembles and hot water and also the temperature effectiveness for the droplet ensembles.",

keywords = "Coefficient of overall heat transfer, Direct contact heat transfer, Natural convection, Perfluorocarbon liquid droplet, Temperature effectiveness",

author = "Hideo Inaba and Akihiko Horibe and Koichi Ozaki and Naoki Yokoyama",

year = "2000",

month = feb,

doi = "10.1299/jsmeb.43.52",

language = "English",

volume = "43",

pages = "52--61",

journal = "JSME International Journal, Series B",

issn = "1340-8054",

number = "1",

}

TY - JOUR

T1 - Liquid-liquid direct contact heat exchange using a perfluorocarbon liquid for waste heat recovery

T2 - (Heat transfer characteristics obtained with perfluorocarbon droplets descending in a hot water medium)

AU - Inaba, Hideo

AU - Horibe, Akihiko

AU - Ozaki, Koichi

AU - Yokoyama, Naoki

PY - 2000/2

Y1 - 2000/2

N2 - This paper has dealt with the heat transfer characteristics of a liquid-liquid direct contact operation in which a Perfluorocarbon (PFC) liquid was released in a hot water stream, which was a low-grade heat source such as urban sewage, for the purpose of heat recovery from it. The paper reported on a set of experiments in which a PFC liquid (1 800 kg/m3 at 20°C) was continuously injected from a downward-facing single nozzle into a slow and upward flow of hot water and it was disintegrated into a lot of droplets and then they were heated from the ascending hot water. The experimental results revealed that the size distribution and flow behavior of the droplet ensembles exerted an influence on the coefficient of overall heat transfer between the droplet ensembles and hot water and also the temperature effectiveness for the droplet ensembles.

AB - This paper has dealt with the heat transfer characteristics of a liquid-liquid direct contact operation in which a Perfluorocarbon (PFC) liquid was released in a hot water stream, which was a low-grade heat source such as urban sewage, for the purpose of heat recovery from it. The paper reported on a set of experiments in which a PFC liquid (1 800 kg/m3 at 20°C) was continuously injected from a downward-facing single nozzle into a slow and upward flow of hot water and it was disintegrated into a lot of droplets and then they were heated from the ascending hot water. The experimental results revealed that the size distribution and flow behavior of the droplet ensembles exerted an influence on the coefficient of overall heat transfer between the droplet ensembles and hot water and also the temperature effectiveness for the droplet ensembles.

KW - Coefficient of overall heat transfer

KW - Direct contact heat transfer

KW - Natural convection

KW - Perfluorocarbon liquid droplet

KW - Temperature effectiveness

UR - http://www.scopus.com/inward/record.url?scp=0034462810&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034462810&partnerID=8YFLogxK

U2 - 10.1299/jsmeb.43.52

DO - 10.1299/jsmeb.43.52

M3 - Article

AN - SCOPUS:0034462810

SN - 1340-8054

VL - 43

SP - 52

EP - 61

JO - JSME International Journal, Series B

JF - JSME International Journal, Series B

IS - 1

ER -

Liquid-liquid direct contact heat exchange using a perfluorocarbon liquid for waste heat recovery: (Heat transfer characteristics obtained with perfluorocarbon droplets descending in a hot water medium)

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this