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직선 이중관식 소형 온수히터 개발을 위한열유동 특성 해석Analysis on Characteristics of Thermal Flow for Developing Small-sizedHot Water Heater with Straight Double Tube-type

Other Titles
Analysis on Characteristics of Thermal Flow for Developing Small-sizedHot Water Heater with Straight Double Tube-type
Authors
양영준
Issue Date
2021
Publisher
한국기계기술학회
Keywords
소형온수히터; 직선이중관식; 온수; 열유동; 틈새; Small-sized hot water heater; Straight double tube-type; Hot water; Thermal flow; Clearance
Citation
한국기계기술학회지, v.23, no.5, pp 754 - 759
Pages
6
Indexed
KCI
Journal Title
한국기계기술학회지
Volume
23
Number
5
Start Page
754
End Page
759
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/4900
DOI
10.17958/ksmt.23.5.202110.754
ISSN
1229-604X
2508-3805
Abstract
Small-sized heater is usually used to make the hot water in resting place, factory, household affairs and so on. One of methods to obtain hot water in short time is known as using instantaneous electric water heater. In this study, numerical analysis for small-sized hot water heater with straight double tube-type was tried to achieve the basic design data. This study aims to investigate the characteristics of thermal flow, for instance, such as pressure difference, outlet mean temperature and velocity, due to clearance. As the clearance is decreased, outlet mean temperature and pressure difference(Pmax.-Pmin.) are increased. Therefore appropriate relations between area of heat source and pressure difference should be set up. Further small-sized hot water heater in this study must be equipped with electric device capable of heating over 90℃.
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Yang, Young Joon
공과대학 (미래자동차공학과)
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