Experimental Study on the Effect of Initial Temperature to CHF in a Rectangular Narrow Channel with Bilateral-Heated
Study to reach the understanding of the complexities of boiling in the narrow channel which was occurred in a severe accident on nuclear power plant has been carried out experimentally in order to achieve the safety management ability, CHF is one important parameter to control heat during transient accident. The methodology of research is an experiment using HeaTiNG-02 test section with modifications in plate using stainless steel material as the reactor vessel wall simulation. Experiments were conducted by heating the heated plate as a simulation of debris until the desired initial temperature by bilateral heated. Then water with a saturation temperature in atmospheric was flowed into the rectangular narrow channel. Data acquisition system recorded temperature changes in transient during the cooling process. The transient temperature profile in double heating surface and rewetting point (rewet fronts) was characterized. Experiment was conducted at three initial temperature variations i.e. 500°C, 550°C and 600°C and using channel width 1 mm. Experiment data was used to calculate heat flux then to fitting CHF form boiling curve. The results showed that CHF in the heated-plate inside is higher than heatedplate outsude; these conditions explain that more heat is released through the outer plate, so that the heat control can be done from outside the system to reduce the temperature quickly. In respectively base on initial temperature increase. The average value of highest CHF for 660 mm vertical position are around 800 kW/m2, 715 kW/m2, and 675 kW/m2 for the heated-plate inside and for 440 mm vertical position in the heated-plate outside are around 500 kW/m2, 415 kW/m2, and 390 kW/m2. There is the effect of CCFL in this experiment.
temperature boiling curve bilateral rectangular plate
Mulya Juarsa Raldi Artono Koestoer Nandy Putra Anhar Riza Antariksawan Indarto IGN. Bagus Catrawerdana
Department of Mechanical Engineering, Faculty of Engineering, Indonesia University Kampus UI, Depok- Department of Mechanical Engineering, Faculty of Engineering, Indonesia University Kampus UI, Depok- Thermal Hydraulics Laboratory, PTRKN, National Nuclear Energy Agency (BATAN), Kawasan PUSPIPTEK, Ban Department of Mechanical Engineering and Industry, Faculty of Engineering, Gadjah Mada University, K
国际会议
The 7th International Conference on Fluid and Thermal Energy Conversion(第七届流动技术与热能转化国际会议 FTEC 2011)
郑州
英文
327-337
2011-09-24（万方平台首次上网日期，不代表论文的发表时间）