Nuclear Reactor Must Need Heat Pipe for Cooling

Mochizuki, Masahito; Singh, Randeep; Nguyen, Thang; Nguyen, Tien Dat; Sugihara, Shinichi; Mashiko, Koichi; Saito, Yuji; Wuttijumnong, Vijit

doi:10.5098/fhp.v2.3.3001

Cited by 10 publications

(8 citation statements)

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“…This helps to explain the decrease of k eff of the Li-Ta combination in section 4.1. For the working fluids in the heat pipes, 7 Li, Cs, and Hg are relatively more important to Na. It is clearly found that all of these nuclides have negative importance to the reactor, which means that an increase in the macroscopic cross section will decrease the value of k eff .…”

Section: Figure 16mentioning

confidence: 99%

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Neutron physics of the liquid‐fuel heat‐pipe reactor concept with molten salt fuel—Static calculations

et al. 2019

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Summary A liquid‐fuel heat‐pipe reactor (LFHPR) is a novel fast heterogeneous reactor developed by Harbin Engineering University, China, on the basis of liquid‐fuel reactor designs and the heat‐pipe reactor concept. In the concept, the reactor abandons the graphite moderator and keeps neither fuel tubes arranged in the graphite nor fuel rings around the heat pipe. Instead, the reactor applies molten salt fuels, molten metallic eutectic fuels, or other fuels in liquid form. The heat generated in the reactor is removed by the heat pipes driven by liquid metals. With this change, an LFHPR is much more flexible in design and application and able to achieve several advanced features compared with conventional heat‐pipe reactors. In this paper, we describe the general reactor design of an LFHPR, discuss its potential advantages, and give a preliminary verification of the neutron physical feasibility for the reference case, which uses molten salt as the fuel, by using both Monte Carlo and deterministic methods. Results show that the LFHPR yields a hard neutron spectrum that brings a very good neutron economy and is a promising application for breeding. From our approach, we conclude that the proposed LFHPR has a very high power density and high negative temperature feedback coefficient.

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Section: Figure 16mentioning

confidence: 99%

“…[4][5][6] It is believed that use of heat pipes in reactors enhances the reliability of the safety systems. 7 Furthermore, heat pipes are used in many nonreactor applications. In ITER, a sodium heat pipe is used to cool the first wall.…”

Section: Introductionmentioning

confidence: 99%

Neutron physics of the liquid‐fuel heat‐pipe reactor concept with molten salt fuel—Static calculations

et al. 2019

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“…Sabharwall and Gunnerson (2009) designed a two-phase thermosyphon for the purpose of transferring thermal energy of next generation nuclear plants to a hydrogen plant. Mochizuki et al (2012) planned a completely passive cooling system using loop heat pipe for cooling the residual heat of nuclear reactor in case of an emergency involving a loss of power, and the design is focused on the Fukushima No.1 plant. Laubscher and Dobson (2013) proposed a heat pipe heat exchanger for high temperature nuclear reactor technology.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a long term passive cooling system using two-phase thermosyphon loops for the nuclear reactor spent fuel pool

et al. 2015

Annals of Nuclear Energy

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“…The work proposed by Grover [2] includes theoretical analysis and presents results of experiments carried out on stainless steel heat pipes with a wire mesh wick and sodium, lithium and silver as working fluids. As a result, these devices began to be used in applications such as in rotary heat exchanger [3], waste heat recovery systems in automobiles [4] and in hospitals [5], latent heat storage systems [6][7][8][9], energy storage in wind power systems [10], aeroponic system [11], nuclear reactor [12,13], thermionic converters [14,15], and electronics cooling applications [16]. As a result, these devices began to be used in applications such as in rotary heat exchanger [3], waste heat recovery systems in automobiles [4] and in hospitals [5], latent heat storage systems [6][7][8][9], energy storage in wind power systems [10], aeroponic system [11], nuclear reactor [12,13], thermionic converters [14,15], and electronics cooling applications [16].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic performance evaluation of an air-air heat pipe heat exchanger

2014

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In this paper, heat transfer analysis for an air-air heat exchanger was experimentally carried out to find its thermal performance and effectiveness. Air-air heat exchanger equipped with finned heat pipes was considered for the experimentation. Mass flow rate of air was considered in between 0.24 to 0.53 kg/s. The temperature at the condenser side of the heat pipe heat exchanger was kept constant at around 23°C and at the evaporator part it was varied from 88 to 147°C. The performance of heat pipe heat exchanger was evaluated at different mass flow rate of air, in terms of effectiveness and compared with its corresponding value found by theoretical analysis.

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Nuclear Reactor Must Need Heat Pipe for Cooling

Cited by 10 publications

References 0 publications

Neutron physics of the liquid‐fuel heat‐pipe reactor concept with molten salt fuel—Static calculations

Neutron physics of the liquid‐fuel heat‐pipe reactor concept with molten salt fuel—Static calculations

Investigation of a long term passive cooling system using two-phase thermosyphon loops for the nuclear reactor spent fuel pool

Thermodynamic performance evaluation of an air-air heat pipe heat exchanger

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