TY - GEN
T1 - Study of heat transfer in a water cooling tank with c-shaped heat exchanger and straight heat pipe under natural circulation
AU - Antariksawan, Anhar R.
AU - Juarsa, Mulya
AU - Sundari, Titik
AU - Ismarwanti, Sri
AU - Widodo, Surip
AU - Kusuma, Mukhsinun Hadi
AU - Subekti, M.
AU - Putra, Nandy Setiadi Djaya
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/1/25
Y1 - 2019/1/25
N2 - In order to cope with the absence of the external electricity source condition, such as the accident occurred in Fukushima Dai-ichi nuclear power plant, several designs of nuclear reactor incorporate a natural circulation based emergency cooling system (ECS). To understand the phenomena and assess the reliability of the natural circulation in the ECS, one experimental facility named FASSIP-02 is being constructed. The facility consists of a water heater tank (WHT), a water cooling tank (WCT), which contains a C-shaped heat exchanger (CHX) and a straight wickless heat pipe (SHP), and a piping system. The current work focuses on numerical simulation of the thermal-hydraulic characteristics in the WCT. The study uses RELAP5 code as a numerical simulating tool. The objective is to assess the applicability of the numerical model, to study the characteristics of the heat transferred to the cooling water from the CHX submerged in the water cooling tank, and the SHP performance to remove heat from WCT by numerical simulation methodology. Two conditions in the WTC are simulated, i.e. with and without SHP. With the given hot source condition in CHX, the simulation results show that without any SHP, the water temperature in the WCT increases continuously reaching saturation temperature in about 130,000 s due to the heat transferred from the CHX. However, using five SHPs with a defined geometry of 1 inch diameter, 2 m total length and water filling ratio of 80% and inside temperature of 25°C, the WCT's water coolant temperature could be maintained about 40°C. It is concluded that the RELAP's model provides a good results showing the general thermal-hydraulic characteristics of the WCT and that the given SHP could transfer the heat from the WCT to the a heat sink preventing continuous increase of WCT's water temperature.
AB - In order to cope with the absence of the external electricity source condition, such as the accident occurred in Fukushima Dai-ichi nuclear power plant, several designs of nuclear reactor incorporate a natural circulation based emergency cooling system (ECS). To understand the phenomena and assess the reliability of the natural circulation in the ECS, one experimental facility named FASSIP-02 is being constructed. The facility consists of a water heater tank (WHT), a water cooling tank (WCT), which contains a C-shaped heat exchanger (CHX) and a straight wickless heat pipe (SHP), and a piping system. The current work focuses on numerical simulation of the thermal-hydraulic characteristics in the WCT. The study uses RELAP5 code as a numerical simulating tool. The objective is to assess the applicability of the numerical model, to study the characteristics of the heat transferred to the cooling water from the CHX submerged in the water cooling tank, and the SHP performance to remove heat from WCT by numerical simulation methodology. Two conditions in the WTC are simulated, i.e. with and without SHP. With the given hot source condition in CHX, the simulation results show that without any SHP, the water temperature in the WCT increases continuously reaching saturation temperature in about 130,000 s due to the heat transferred from the CHX. However, using five SHPs with a defined geometry of 1 inch diameter, 2 m total length and water filling ratio of 80% and inside temperature of 25°C, the WCT's water coolant temperature could be maintained about 40°C. It is concluded that the RELAP's model provides a good results showing the general thermal-hydraulic characteristics of the WCT and that the given SHP could transfer the heat from the WCT to the a heat sink preventing continuous increase of WCT's water temperature.
UR - http://www.scopus.com/inward/record.url?scp=85061113744&partnerID=8YFLogxK
U2 - 10.1063/1.5086554
DO - 10.1063/1.5086554
M3 - Conference contribution
AN - SCOPUS:85061113744
T3 - AIP Conference Proceedings
BT - 10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
A2 - Yatim, Ardiyansyah
A2 - Nasruddin, null
A2 - Budiyanto, Muhammad Arif
A2 - Aisyah, Nyayu
A2 - Alhamid, Muhamad Idrus
PB - American Institute of Physics Inc.
T2 - 10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Y2 - 16 November 2018 through 17 November 2018
ER -