CFD Simulation of a Natural Circulation Helium Loop

Knížat, Branislav; Hlbocan, Peter; Mlkvik, Marek

doi:10.1515/stu-2015-0006

Cited by 7 publications

(5 citation statements)

References 6 publications

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“…In order to compare the results from the smoke test and the measurement of velocities with an anemometer, we created a simulation of the experimental device in its current state, where a laminar chamber with a slot outlet was used [12][13][14][15][16][17]. Chamber Inlet -…”

Section: Comparison Of Measured Values By Cfd Simulationmentioning

confidence: 99%

Laminar Air Curtains as Protection against Respiratory Infections

Chovanec¹,

Bursíková²

2022

ATPET

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The article focuses on the design, optimization and implementation of a device for creating a laminar air curtain. Its purpose is to separate two spaces filled with air of different parameters, while these air masses do not mix. The function of the device is to prevent the transmission of respiratory pathogens that can be transmitted through the air. The premises can also be disinfected with a volatile inhalant. In the experimental device, air flow speeds are measured in two parts, namely in the part at the entrance of the air curtain to the chamber and in the part at the exit from it. Based on these measurements, velocity profiles are compiled, which are compared with verified simulations of the experimental device in CFD. The results indicate whether the device needs to be optimized, especially with regard to a more suitable geometry of the outlet and the laminar chamber. The new design is verified again in CFD simulation and finally implemented, so that it meets the requirements arising from the purpose of the device and is additionally verified by new measurements.

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Section: Comparison Of Measured Values By Cfd Simulationmentioning

confidence: 99%

Laminar Air Curtains as Protection against Respiratory Infections

Chovanec¹,

Bursíková²

2022

ATPET

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“…1) is an experimental device that allows testing of the decay heat removal (DHR) from the model of the gas-cooled fast reactor (GFR). The cooling loop consists of four main components: the model of the gas-cooled fast reactor (1), the model of the heat exchanger for the decay heat removal (2), hot piping branch (3) and cold piping branch (4). In terms of the thermal processes, the GFR model and the DHR heat exchanger model are important.…”

Section: The Description Of the Operation And The Configuration Of Himentioning

confidence: 99%

“…For this reason, the research of the helium cooling loop systems is very topical. The research activities in the given area from several aspects are documented in the various publications, as for example [1,2,3,4,5,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Thermal Characteristics of High Temperature Naturally Circulating Helium Cooling Loop

Dzianik

Gužela

Puškášová

2018

Strojnícky Časopis - Journal of Mechanical Engineering

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The paper deals with the process properties in terms of the heat transfer, i.e. the thermal performance of the thermal-process units within a helium loop intended for the testing of the decay heat removal (DHR) from the model of the gas-cooled fast reactor (GFR). The system is characterised by a natural circulation of helium, as a coolant, and assume the steady operating conditions of the circulation. The helium loop consists of four main components: the model of the gas-cooled fast reactor, the model of the heat exchanger for the decay heat removal, hot piping branch and cold piping branch. Using the thermal calculations, the thermal performance of the heat exchanger model and the thermal performance of the gas-cooled fast reactor model are determined. The calculations have been done for several defined operating conditions which correspond to the different helium flow rates within the system.

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“…For this reason, the research of helium cooling loop systems is very topical. The research activities in the given area from several aspects are documented in the various publications, as for example [1,2,3,4,5,6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Suitability Assessment of Two Types of Heat Exchangers for High Temperature, Naturally Circulating Helium Cooling Loop

Dzianik

Gužela

Puškášová

2019

Strojnícky Časopis - Journal of Mechanical Engineering

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The paper presents a comparison of the process properties of two types of the heat exchangers designed for the heat removal from a high temperature helium cooling loop with steady natural circulation of helium. The first considered heat exchanger is a shell and tube heat exchanger with U-tubes and the other one is a helical coil heat exchanger. Using the thermal and hydrodynamic process calculations, the thermal performance of the two alternative heat exchangers are determined, as well as the pressure drops of flowing fluids in their workspaces. The calculations have been done for several defined operating conditions of two considered types of heat exchangers. The operating conditions of heat exchangers correspond to the certain helium flow rates.

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CFD Simulation of a Natural Circulation Helium Loop

Cited by 7 publications

References 6 publications

Laminar Air Curtains as Protection against Respiratory Infections

Laminar Air Curtains as Protection against Respiratory Infections

Thermal Characteristics of High Temperature Naturally Circulating Helium Cooling Loop

Suitability Assessment of Two Types of Heat Exchangers for High Temperature, Naturally Circulating Helium Cooling Loop

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