Development of Passive In-Core Cooling System for Nuclear Safety Using Hybrid Heat Pipe

2016 ◽  
Vol 196 (3) ◽  
pp. 598-613 ◽  
Author(s):  
Kyung Mo Kim ◽  
Yeong Shin Jeong ◽  
In Guk Kim ◽  
In Cheol Bang
Keyword(s):  
Heat Pipe ◽  
Cooling System ◽  
Nuclear Safety ◽  
Core Cooling

Hybrid heat pipe based passive in-core cooling system for advanced nuclear power plant

2015 ◽  
Vol 90 ◽  
pp. 609-618 ◽  
Author(s):  
Yeong Shin Jeong ◽  
Kyung Mo Kim ◽  
In Guk Kim ◽  
In Cheol Bang
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Heat Pipe ◽  
Nuclear Power ◽  
Cooling System ◽  
Core Cooling

Heat pipe based passive emergency core cooling system for safe shutdown of nuclear power reactor

2014 ◽  
Vol 73 (1) ◽  
pp. 699-706 ◽  
Author(s):  
Masataka Mochizuki ◽  
Randeep Singh ◽  
Thang Nguyen ◽  
Tien Nguyen
Keyword(s):  
Heat Pipe ◽  
Nuclear Power ◽  
Power Reactor ◽  
Cooling System ◽  
Nuclear Power Reactor ◽  
Core Cooling

H212 Heat Pipe Based Emergency Core Cooling System for Nuclear Reactor

2011 ◽  
Vol 2011 (0) ◽  
pp. 363-364
Author(s):  
Randeep Singh ◽  
Masataka Mochizuki ◽  
Thang Nguyen ◽  
Tien Nguyen ◽  
Koichi Mashiko ◽  
...  
Keyword(s):  
Heat Pipe ◽  
Nuclear Reactor ◽  
Cooling System ◽  
Core Cooling

scholarly journals An Emergency Core Cooling System (ECCS) for Nuclear Power Reactor Using Passive Loop Heat Pipe

2012 ◽  
Vol 15 (3) ◽  
pp. 180-184
Author(s):  
Masataka Mochizuki ◽  
Randeep Singh ◽  
Thang Nguyen ◽  
Yuji Saito ◽  
Tien Nguyen
Keyword(s):  
Heat Pipe ◽  
Nuclear Power ◽  
Power Reactor ◽  
Cooling System ◽  
Loop Heat Pipe ◽  
Nuclear Power Reactor ◽  
Core Cooling

scholarly journals PCM assisted heat pipe cooling system for the thermal management of an LTO cell for high-current profiles

2021 ◽  
pp. 100920
Author(s):  
Hamidreza Behi ◽  
Danial Karimi ◽  
Foad Heidari Gandoman ◽  
Mohsen Akbarzadeh ◽  
Sahar Khaleghi ◽  
...  
Keyword(s):  
Heat Pipe ◽  
Thermal Management ◽  
Cooling System ◽  
High Current

scholarly journals Evaluation of passive autocatalytic recombiners operation efficiency by means of the lumped parameter approach

Nukleonika ◽  
2015 ◽  
Vol 60 (2) ◽  
pp. 339-345 ◽  
Author(s):  
Tomasz Bury
Keyword(s):  
Hydrogen Generation ◽  
Cooling System ◽  
Component Mixture ◽  
Pressurized Water ◽  
Water Reactor ◽  
Safety Issues ◽  
Loss Of Coolant Accident ◽  
Lumped Parameter ◽  
Core Cooling ◽  
Parameter Approach

Abstract The problem of hydrogen behavior in containment buildings of nuclear reactors belongs to thermal-hydraulic area. Taking into account the size of systems under consideration and, first of all, safety issues, such type of analyses cannot be done by means of full-scale experiments. Therefore, mathematical modeling and numerical simulations are widely used for these purposes. A lumped parameter approach based code HEPCAL has been elaborated in the Institute of Thermal Technology of the Silesian University of Technology for simulations of pressurized water reactor containment transient response. The VVER-440/213 and European pressurised water reactor (EPR) reactors containments are the subjects of analysis within the framework of this paper. Simulations have been realized for the loss-of-coolant accident scenarios with emergency core cooling system failure. These scenarios include core overheating and hydrogen generation. Passive autocatalytic recombiners installed for removal of hydrogen has been taken into account. The operational efficiency of the hydrogen removal system has been evaluated by comparing with an actual hydrogen concentration and flammability limit. This limit has been determined for the three-component mixture of air, steam and hydrogen. Some problems related to the lumped parameter approach application have been also identified.

Remote Heat Pipe Based Heat Exchanger Performance in Notebook Cooling

2005 ◽  
Author(s):  
Seyyed Khandani ◽  
Himanshu Pokharna ◽  
Sridhar Machiroutu ◽  
Eric DiStefano
Keyword(s):  
Heat Exchanger ◽  
Thermal Resistance ◽  
Heat Pipe ◽  
Cooling System ◽  
Temperature Drop ◽  
Operating Conditions ◽  
Cooling Systems ◽  
Temperature Variations ◽  
Non Linear ◽  
Condenser Temperature

Remote heat pipe based heat exchanger cooling systems are becoming increasingly popular in cooling of notebook computers. In such cooling systems, one or more heat pipes transfer the heat from the more populated area to a location with sufficient space allowing the use of a heat exchanger for removal of the heat from the system. In analsysis of such systems, the temperature drop in the condenser section of the heat pipe is assumed negligible due to the nature of the condensation process. However, in testing of various systems, non linear longitudinal temperature drops in the heat pipe in the range of 2 to 15 °C, for different processor power and heat exchanger airflow, have been measured. Such temperature drops could cause higher condenser thermal resistance and result in lower overall heat exchanger performance. In fact the application of the conventional method of estimating the thermal performance, which does not consider such a nonlinear temperature variations, results in inaccurate design of the cooling system and requires unnecessarily higher safety factors to compensate for this inaccuracy. To address the problem, this paper offers a new analytical approach for modeling the heat pipe based heat exchanger performance under various operating conditions. The method can be used with any arbitrary condenser temperature variations. The results of the model show significant increase in heat exchanger thermal resistance when considering a non linear condenser temperature drop. The experimental data also verifies the result of the model with sufficient accuracy and therefore validates the application of this model in estimating the performance of these systems.   This paper was also originally published as part of the Proceedings of the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems.

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