Experimental study on heat pipe heat removal capacity for passive cooling of spent fuel pool

Xiong, Zhenqin; Wang, Minglu; Gu, Hanyang; Cheng, Yonghua

doi:10.1016/j.anucene.2015.03.045

Cited by 39 publications

(13 citation statements)

References 12 publications

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“…Sehingga kerapatannya menjadi turun dan air akan mengalir ke atas menuju WCT. Selanjutnya WCT berfungsi mengambil kalor pada air sehingga temperatur air menurun dan berakibat kerapatan air naik, sehingga air akan mengalir ke bawah menuju ke WHT [6][7][8].…”

Section: Pendahuluanunclassified

Analisis Kekuatan Mekanik Water Cooling Tank Pada Fasilitas Uji Untai Passif-02 Menggunakan Catia

Haryanto

2018

Jurnal Ilmiah Teknik Mesin

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Strand Test Facility has been constructed and will be used for passive reactor core cooling simulation research without using a pump or outside force, so that the movement of water flow occurs naturally. One important component of the FASSIP-02 is the water cooling tank (WCT), in addition to piping, expansion tanks (ET) and water heating tanks (WHT). WCT containing water such as a pond that functions to take heat in the water from the FASSIP-02 piping system with a position at an altitude of 11 meters. The total load of water and tank is 10 tons and for safety and security factors during operation it is necessary to analyze the mechanical strength of the WCT. Analysis is done by simulating mechanical stress conditions and translational displacement to determine the safety of WCT when operating. The stages of analysis include making a 3-dimensional model equipped with the mechanical properties of the material used, giving a load on the 3-dimensional WCT model, giving restrain to simulate the stable condition of the 3-dimensional model and testing it in simulation. The results of the analysis show that the mechanical stress on the WCT is still in the elastic area of the Carbon Steel AISI 1040 material if the temperature of the secondary water in WCT is less than 90 ° C. The primary water operating temperature is a maximum of 90 ° C and the secondary water temperature does not reach 90 ° C due to heat transfer from primary to secondary. Translational displacement that occurs is very small when compared to the WCT dimension so that it does not result in a change in shape in the WCT. Thus the design of the WCT can be continued to be constructed and safely operated.

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Section: Pendahuluanunclassified

Analisis Kekuatan Mekanik Water Cooling Tank Pada Fasilitas Uji Untai Passif-02 Menggunakan Catia

Haryanto

2018

Jurnal Ilmiah Teknik Mesin

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“…Based on the Fukushima Dai-ichi NPP accident, any kind of heat pipe has been investigated as PCS, especially if the active cooling system fails to work due to a long-term SBO condition that was caused by the tsunami. To keep the reactor remains in a safe condition, many researchers were proposed the loop heat pipe [10][11][12][13] and thermosyphon [14,15]. It can be concluded from their investigations that heat pipes could be considered as PCS for nuclear installations if accidents occur due to their thermal performance.…”

Section: Introductionmentioning

confidence: 99%

Study on Thermal Characteristics of U-Shaped Heat Pipe

et al. 2021

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The latest accident in Japan's nuclear power station became a valuable experience to start engaging passive cooling systems (PCS) more aggressively to improve safety aspects in nuclear power reactors being studied in Indonesia. This investigation is related to the U-shaped heat pipe (UHP) research as PCS of water in the cooling tank (CT). The objective of this research is to study the thermal characteristics of UHP as PCS in the CT. The experiment on small-scale UHP and simulation with RELAP5 code has been conducted to understand the performance of UHP. The experiment results of the small-scale UHP model will be used as a basic understanding of simulating and designing a UHP with big scaling. The study result showed the highest thermal performance of UHP was obtained when it operated on the higher temperature of heat load and higher air cooling velocity. The more UHPs inserted into the cooling pool, the more heat that can be discharged into the environment. This result also shows promising use of UHP for CT PCS. The use of UHP as PCS can enhance the safety aspect of the nuclear reactor, especially in station blackout event.

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“…In the nuclear field, the heat pipe is considered and proposed to be used as a passive cooling system, such as loop heat pipe [9][10][11][12]; two-phase closed thermosyphon loop [12,13]; hybrid heat pipe [14][15][16][17]; variable conductance heat pipe [18]; heat pipe radiator [19]; sodium heat pipe [20]; and vertical straight wickless-heat pipe [21][22][23][24]. The results of heat pipe investigation showed that heat pipe with demineralized water working fluid has good thermal performance to remove the heat generation and it could be proposed to be used as passive cooling system in nuclear installation when accident occurred.…”

Section: Introduction mentioning

confidence: 99%

Investigation on the Performance of a Wickless-Heat Pipe Using Graphene Nanofluid for Passive Cooling System

et al. 2019

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To enhance the thermal safety in case of station blackout, a wickless-heat pipe is proposed as an alternative passive cooling system technology to remove decay heat generation in the nuclear spent fuel storage pool. The objectives of this research are to investigate the heat transfer phenomena in vertical straight wicklessheat pipe using Graphene nanofluid working fluid and to study the effect of Graphene nanofluid on the vertical straight wickless-heat pipe thermal performance. The investigation was conducted in 6 meters height and 0.1016 m inside diameter of vertical straight wickless-heat pipe. In this research, the Graphene nanofluid with 1 % of weight concentration was used as working fluid. The effect of working fluid filling ratio, evaporator heat load, and coolant volumetric flow rate on the water jacket were studied. The results showed that the heat transfer phenomena, which were indicated by an overshoot, zigzag, and stable state, were observed. Based on thermal resistance obtained, it was shown that the vertical straight wickless-heat pipe charged with the Graphene nanofluid has a lower thermal resistance compared to one with demineralized water. The thermal resistance of vertical straight wickless-heat pipe using Graphene nanofluid and demineralized water were 0.015 °C/W and 0.016 °C/W, respectively. While the best thermal performance was achieved at a filing ratio of 80 %, higher heat load, and higher coolant volumetric flow rate. It can be concluded that Graphene nanofluid could enhance the thermal performance of vertical straight wickless-heat pipe.

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Experimental study on heat pipe heat removal capacity for passive cooling of spent fuel pool

Cited by 39 publications

References 12 publications

Analisis Kekuatan Mekanik Water Cooling Tank Pada Fasilitas Uji Untai Passif-02 Menggunakan Catia

Analisis Kekuatan Mekanik Water Cooling Tank Pada Fasilitas Uji Untai Passif-02 Menggunakan Catia

Study on Thermal Characteristics of U-Shaped Heat Pipe

Investigation on the Performance of a Wickless-Heat Pipe Using Graphene Nanofluid for Passive Cooling System

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