Performance enhancement on gas fired water heater using titanium heat exchanger for latent heat recovery

Kyudae Hwang; Sunggun Hyun; Kiyoshi Saito; Sunao Kawai; Katsuyuki Inagaki; Ryuji Ozawa

doi:10.3775/jie.84.62

Performance enhancement on gas fired water heater using titanium heat exchanger for latent heat recovery

Kyudae Hwang^*, Sunggun Hyun, Kiyoshi Saito, Sunao Kawai, Katsuyuki Inagaki, Ryuji Ozawa

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

Abstract

The performance of natural gas (13A) fired water heater with titanium heat exchanger for latent heat recovery was evaluated. In the terms of thermal efficiency, the performance of the water heater was evaluated based on the net calorific value at maximum rated output. The thermal efficiency of gas fired water heater with latent heat recovery heat exchanger was ≈ 10% higher than that of the conventional instantaneous water heater. The overall heat conductance of the heat exchanger with staggered tube rows was more efficient than that of the inline tube rows.

Original language	English
Pages (from-to)	62-67
Number of pages	6
Journal	Journal of the Japan Institute of Energy
Volume	84
Issue number	1
DOIs	https://doi.org/10.3775/jie.84.62
Publication status	Published - 2005 Jan

Keywords

Gas fired water heater
Latent heat recovery
Thermal efficiency
Titanium heat exchanger

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3775/jie.84.62

Cite this

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abstract = "The performance of natural gas (13A) fired water heater with titanium heat exchanger for latent heat recovery was evaluated. In the terms of thermal efficiency, the performance of the water heater was evaluated based on the net calorific value at maximum rated output. The thermal efficiency of gas fired water heater with latent heat recovery heat exchanger was ≈ 10% higher than that of the conventional instantaneous water heater. The overall heat conductance of the heat exchanger with staggered tube rows was more efficient than that of the inline tube rows.",

keywords = "Gas fired water heater, Latent heat recovery, Thermal efficiency, Titanium heat exchanger",

author = "Kyudae Hwang and Sunggun Hyun and Kiyoshi Saito and Sunao Kawai and Katsuyuki Inagaki and Ryuji Ozawa",

year = "2005",

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AU - Hwang, Kyudae

AU - Hyun, Sunggun

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AU - Kawai, Sunao

AU - Inagaki, Katsuyuki

AU - Ozawa, Ryuji

PY - 2005/1

Y1 - 2005/1

N2 - The performance of natural gas (13A) fired water heater with titanium heat exchanger for latent heat recovery was evaluated. In the terms of thermal efficiency, the performance of the water heater was evaluated based on the net calorific value at maximum rated output. The thermal efficiency of gas fired water heater with latent heat recovery heat exchanger was ≈ 10% higher than that of the conventional instantaneous water heater. The overall heat conductance of the heat exchanger with staggered tube rows was more efficient than that of the inline tube rows.

AB - The performance of natural gas (13A) fired water heater with titanium heat exchanger for latent heat recovery was evaluated. In the terms of thermal efficiency, the performance of the water heater was evaluated based on the net calorific value at maximum rated output. The thermal efficiency of gas fired water heater with latent heat recovery heat exchanger was ≈ 10% higher than that of the conventional instantaneous water heater. The overall heat conductance of the heat exchanger with staggered tube rows was more efficient than that of the inline tube rows.

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KW - Latent heat recovery

KW - Thermal efficiency

KW - Titanium heat exchanger

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Performance enhancement on gas fired water heater using titanium heat exchanger for latent heat recovery

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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