Natural Circulation Flow Rate Comparison Using Water and Al2O3 as Working Fluids Based on Power Control in Medium-Scale Passive Cooling Experimental Facility

EasyChair Preprint no. 11392

Abstract

The use of natural ciulation as a passive cooling safety system in reactors has been applied by nuclear power plants around the world, including the AP1000 reactor from Westinghouse and SMART from KAERI with a passive cooling system, namely, Passive Residual Heat Removal System (PRHRS) to prevent overpressure from overheating in the reactor cooling system during an accident. The type of working fluid used affects the natural circulation flow rate. This research compared the mass flow rate of natural circulation based on water and Al2O3-nanofluid working fluids to changes in heater power used for steady-state conditions. The experiment was conducted by varying heater power in the heating tank from 1400 W, 2800 W, and 4200 W. Data collection was carried out experimentally and analyzed calculations to obtain the mass flow rate value in water and nanofluids as working fluids that will be used. The results indicate that using nanofluids can increase the value of the mass flow rate compared to ordinary water because there is a difference in density values that affect the mass flow rate. Where the high mass flow rate value is at 4200 powers with a value of Al2O3-nanofluids mass flow rate is 0.0456 kg/s and water mass flow rate is 0.0454kg/s.

Keyphrases: Al2O3, mass flow rate, Nanofluids, natural circulation, passive cooling, power

@Booklet{EasyChair:11392,
  author = {Ryan Oktaviandi and Muhamad Rafel and Dwi Yuliaji and Roy Waluyo and Sunandi Kharisma and Putut Hery Setiawan and Deendarlianto Deendarlianto and Mulya Juarsa},
  title = {Natural Circulation Flow Rate Comparison Using Water and Al2O3 as Working Fluids Based on Power Control in Medium-Scale Passive Cooling Experimental Facility},
  howpublished = {EasyChair Preprint no. 11392},

  year = {EasyChair, 2023}}