The Experts below are selected from a list of 66 Experts worldwide ranked by ideXlab platform
Kyoung-ho Kang - One of the best experts on this subject based on the ideXlab platform.
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Experimental investigation on condensation heat transfer for Bundle Tube heat exchanger of the PCCS (Passive Containment Cooling System)
Annals of Nuclear Energy, 2020Co-Authors: Yu-sun Park, Kyoung-ho KangAbstract:Abstract To provide a passive cooling system for the reactor containment, Passive Containment Cooling System (PCCS) was adopted in the design of i-POWER nuclear power plant. This study focused on validation tests for condensation heat transfer of the PCCS heat exchanger using the CLASSIC facility. The tests include investigation of the condensation heat transfer in prototypic single Tube and Bundle Tubes. From the single Tube experiments, condensation heat transfer model was proposed to reflect the PCCS heat exchanger Tube geometry. Experimental results in the Bundle Tube show consistent trend compared to the proposed heat transfer model from the single Tube test. The local condensation heat transfer coefficient of inside Tubes was smaller than the average value due to a shadow effect by a larger mass fraction of non-condensable gas, so that design of the PCCS should take into account degradation of the condensation heat removal in the Bundle geometry.
Xiaobo Zhang - One of the best experts on this subject based on the ideXlab platform.
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Application of Thermocouple Thermometry and Bundle Tube Monitoring in Fire Prevention and Extinguishing in Coal Mine
2009 2nd International Congress on Image and Signal Processing, 2009Co-Authors: Xiyu Pi, Yinghua Zhang, Yuhuai Wang, Zhian Huang, Xiaobo ZhangAbstract:Spontaneous combustion occurred many times in the goaf of E12606 Fully Mechanized Working Face of Cuijiazai Coal Mine. For reinforcing fire prevention and extinguishing management, thermocouple thermometry and Bundle Tube monitoring system had been laid in the goaf of E12606 working face. Through analyzing the measurement result (temperature and oxygen change rule), distribution regularities of three zones of spontaneous combustion and working-face propulsion speed had been determined for the goaf. This research provides technical support for Cuijiazai Coal Mine to prevent spontaneous combustion and arrange production rationally.
M. W. Larinoff - One of the best experts on this subject based on the ideXlab platform.
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Inquiry specs can improve air-cooled condenser design
Power Engineering, 1990Co-Authors: M. W. LarinoffAbstract:Air-cooled steam condensers, commonly used in the process industry, have found acceptance in power plants. Reasons that they may be installed include a plant's lack of makeup water, high water costs, or a need to eliminate water vapor plumes or chemical blowdown. Although they once were thought to have size limitations, such condensers are in use at several 650-MW power plant units. Now used in large power plants, air-cooled steam condensers can minimize Bundle Tube freezing problems through good design specification and operating practice
Tian Haifeng - One of the best experts on this subject based on the ideXlab platform.
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Monitor methods of preventing combustion in goaf at working face
Journal of Liaoning Technical University, 2020Co-Authors: Tian HaifengAbstract:For the coal in goaf self-ignites very easily,the Bundle Tube monitor system and temperature sensors are applied in the goaf of Liujia coal mine of Pingzhuang Coal Industry Group.The distribution regular of spontaneous combustion "three zones" in goaf of top-coal caving work face can be analyzed by the methods.And it is very important for preventing spontaneous combustion in goaf.
Edwin Slamet Gunadarma - One of the best experts on this subject based on the ideXlab platform.
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SHELL AND Tube HEAT EXCHANGER DESIGN SOFTWARE VALIDATION AND VERIFICATION WITH SHELL AND Tube TYPE HEAT EXCHANGER
2012Co-Authors: Edwin Slamet GunadarmaAbstract:This research conducted to get the quick calculation method for designing a shell and Tube heat exchanger with a software called shell and Tube heat exchanger design.The objectives of this research are to get the result from validating the software with RSG-GAS heat exchanger with 16200 kW estimated power capacity and to get the resultfrom verifying the software with AP1000 steam generator and shell and Tube heat exchanger with 1 kW heat load that located in mechanical engineering department’s laboratory at Tarumanagara University. Input process is carried out by inserting the fluid parameter like temperature, flow rate, physical properties, and the geometrical dimension of heat exchanger to the shell and Tube heat exchanger design software. The data for comparison can be obtained from experiment data or calculated design. The validation comparison result from the software with RSG-GAS heat exchanger showed that the highest difference occur at number of Tube calculation by 7,4% higher compared to designed data. This is caused by the difference in Tube height of U Tube construction that has the highest and lowest Tube height. The verification of software with AP1000 steam generator showed the highest difference occur in shell side pressure drop with 14% lower than the designed data. This difference caused by the gap between Bundle Tube and shell diameter that can be adjusted if needed. The second highest difference occur in number of Tubes that 7,2% lower than designed data. This may be caused by the different calculation method between the designed data and software. The verification of software with shell and Tube heat exchanger with 1 kW heat load show that more power is needed to reach the designed temperature approximately 20% more than designed data. There is no difference in geometrical parameter. The experiment occurs to get heat transfer coefficient value for dirt factor calculation and that showed that the heat exchanger is still in good condition.