In order to investigate the coolability of a tight lattice core in BWR (boiling water reactors), an experiment of CHF (critical heat flux) was conducted using a single heater pin flow channel with and without a wi...In order to investigate the coolability of a tight lattice core in BWR (boiling water reactors), an experiment of CHF (critical heat flux) was conducted using a single heater pin flow channel with and without a wire spacer with the mass flux ranged from 200 kg/(m2.s) to 600 kg/(m2·s), the inlet temperature from 50 ℃ to 90 ℃ at the pressure of 0.1 MPa. The results of CHF values were compared between two different types of heater pin with and without the wire spacer. The heat removability of flow channel was improved by the wire spacer in comparison with the heater pin flow channel without the wire spacer. The CHF value was higher in the heater pin channel with the wire spacer than in that without the wire spacer.展开更多
文摘In order to investigate the coolability of a tight lattice core in BWR (boiling water reactors), an experiment of CHF (critical heat flux) was conducted using a single heater pin flow channel with and without a wire spacer with the mass flux ranged from 200 kg/(m2.s) to 600 kg/(m2·s), the inlet temperature from 50 ℃ to 90 ℃ at the pressure of 0.1 MPa. The results of CHF values were compared between two different types of heater pin with and without the wire spacer. The heat removability of flow channel was improved by the wire spacer in comparison with the heater pin flow channel without the wire spacer. The CHF value was higher in the heater pin channel with the wire spacer than in that without the wire spacer.