Performance Study of Structure Improvement Design for Storage-type Domestic Electrical Water-Heaters based on the CFD Simulation
(0) The 3D physical model with two different structure of the electrical water heater was built. The performance of water heater was studied by computer fluid dynamics simulation (CFD). The heater performance is characterized the discharge efficiency, extraction efficiency and fraction of heat recoverable. It was 73.7％, 45％ and 49.8％ respectively with conventional structure, and it was 81.1％, 54.1％ and 59.6％ respectively of improved structure with discharge rate was 5L/min when all initial hot water temperature was 90 ℃. The temperature distribution of different discharged stage was also disclosure. The water inner the water tank of improved structure has the better thermal stratification than traditional structure. It was also agreed with the water heat performance.
Electric Water heater utility efficiency Structure improvement CFD Simulation
Zhijun Zhang Shiwei Zhang Chenghai Xu
School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110004,China
国际会议
2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)
重庆
英文
602-606
2010-09-17（万方平台首次上网日期，不代表论文的发表时间）