# Thermalhydraulic calculation for boiling water reactor and its natural circulation component

## Abstract

Thermalhydraulic of reactor core is the thermal study on fluids within the core reactor, i.e. analysis of the thermal energy transfer process produced by fission reaction from fuel to the reactor coolant. This study include of coolant temperature and reactor power density distribution. The purposes of this analysis in the design of nuclear power plant are to calculate the coolant temperature distribution and the chimney height so natural circulation could be occurred. This study was used boiling water reactor (BWR) with cylinder type reactor core. Several reactor core properties such as linear power density, mass flow rate, coolant density and inlet temperature has been took into account to obtain distribution of coolant density, flow rate and pressure drop. The results of calculation are as follows. Thermal hydraulic calculations provide the uniform pressure drop of 1.1 bar for each channels. The optimum mass flow rate to obtain the uniform pressure drop is 217g/s. Furthermore, from the calculation it could be known that outlet temperature is 288°C which is the saturated fluid’s temperature within the system. The optimum chimney height for natural circulation within the system is 14.88 m.

- Authors:

- Nuclear Physics and Biophysics Research Division Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesha 10, Bandung (Indonesia)

- Publication Date:

- OSTI Identifier:
- 22488954

- Resource Type:
- Journal Article

- Journal Name:
- AIP Conference Proceedings

- Additional Journal Information:
- Journal Volume: 1677; Journal Issue: 1; Conference: 5. international conference on mathematics and natural sciences, Bandung (Indonesia), 2-3 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 22 GENERAL STUDIES OF NUCLEAR REACTORS; BWR TYPE REACTORS; COOLANTS; DENSITY; FLOW RATE; NATURAL CONVECTION; NUCLEAR POWER PLANTS; POWER DENSITY; PRESSURE DROP; REACTOR CORES; REACTOR FUELING; TEMPERATURE DISTRIBUTION; THERMAL HYDRAULICS

### Citation Formats

```
Trianti, Nuri, E-mail: nuri.trianti@gmail.com, Nurjanah,, Su’ud, Zaki, Arif, Idam, and Permana, Sidik.
```*Thermalhydraulic calculation for boiling water reactor and its natural circulation component*. United States: N. p., 2015.
Web. doi:10.1063/1.4930786.

```
Trianti, Nuri, E-mail: nuri.trianti@gmail.com, Nurjanah,, Su’ud, Zaki, Arif, Idam, & Permana, Sidik.
```*Thermalhydraulic calculation for boiling water reactor and its natural circulation component*. United States. doi:10.1063/1.4930786.

```
Trianti, Nuri, E-mail: nuri.trianti@gmail.com, Nurjanah,, Su’ud, Zaki, Arif, Idam, and Permana, Sidik. Wed .
"Thermalhydraulic calculation for boiling water reactor and its natural circulation component". United States. doi:10.1063/1.4930786.
```

```
@article{osti_22488954,
```

title = {Thermalhydraulic calculation for boiling water reactor and its natural circulation component},

author = {Trianti, Nuri, E-mail: nuri.trianti@gmail.com and Nurjanah, and Su’ud, Zaki and Arif, Idam and Permana, Sidik},

abstractNote = {Thermalhydraulic of reactor core is the thermal study on fluids within the core reactor, i.e. analysis of the thermal energy transfer process produced by fission reaction from fuel to the reactor coolant. This study include of coolant temperature and reactor power density distribution. The purposes of this analysis in the design of nuclear power plant are to calculate the coolant temperature distribution and the chimney height so natural circulation could be occurred. This study was used boiling water reactor (BWR) with cylinder type reactor core. Several reactor core properties such as linear power density, mass flow rate, coolant density and inlet temperature has been took into account to obtain distribution of coolant density, flow rate and pressure drop. The results of calculation are as follows. Thermal hydraulic calculations provide the uniform pressure drop of 1.1 bar for each channels. The optimum mass flow rate to obtain the uniform pressure drop is 217g/s. Furthermore, from the calculation it could be known that outlet temperature is 288°C which is the saturated fluid’s temperature within the system. The optimum chimney height for natural circulation within the system is 14.88 m.},

doi = {10.1063/1.4930786},

journal = {AIP Conference Proceedings},

issn = {0094-243X},

number = 1,

volume = 1677,

place = {United States},

year = {2015},

month = {9}

}