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저 NOx용 2단 열교환기가 장착된 가정용 보일러 연소실의 열전달 및 유동 수치해석Numerical Simulation on the Flow and Heat Transfer in the Combustion Chamber of Domestic Gas Boiler with 2-stage Heat Exchanger
- Other Titles
- Numerical Simulation on the Flow and Heat Transfer in the Combustion Chamber of Domestic Gas Boiler with 2-stage Heat Exchanger
- Issue Date
- Dec-2008
- Publisher
- 한국유체기계학회
- Keywords
- Domestic Gas Boiler(가정용 가스보일러); #2-stage Heat Exchanger(2단 열교환기); Simulation of Flow and Heat Transfer(열유동해석)
- Citation
- 유체기계 연구개발 발표회 논문집, pp 607 - 613
- Pages
- 7
- Indexed
- OTHER
- Journal Title
- 유체기계 연구개발 발표회 논문집
- Start Page
- 607
- End Page
- 613
- Abstract
- In this work, a numerical investigation is performed for the combustion chamber of domestic gas boiler with 1-stage and 2-stage heat exchanger. The fluid flow and heat transfer performance is provided with a structure change of heat exchanger. The numerical solution shows that, compared to the 1-stage heat exchanger, the increase in the heat transfer in the 2-stage heat exchanger is higher than that of the pressure loss, which proves the excellent performance of this 2-stage heat exchanger. The temperature of combustion chamber with 2-stage heat exchanger is lower than that of 1-stage. This effect reduces thermal NOx with decrease of high temperature staying time of the combustion gas.
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Related Researcher
- YOON, JOON YONG
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)