ABSTRACT
CSF is set up near Hall-7 in BARC, for studying various, containment related thermal hydraulic and other processes during simulated accident conditions in Nuclear Power Plants (NPPs). The facility consists of a reactor Containment Model (CM) with a Primary Heat Transport system Model (PHTM). The CM is a scaled-down model of the containment of Indian Pressurized Heavy Water Reactor (IPHWR), with volume scaling ratio of 200:1. It is cylindrical with approximate diameter being 6m, and a height of being 9m. It has three internal floors and multiple compartments on each floor. The instrumentation comprises sensors for the measurement of about 250 process parameters such as temperatures, pressures, levels, flows, humidity, strains, etc. of which about 150 are temperature sensors.
During the cold and hot commissioning of the PHTM, several key aspects of process instrumentation were handled. They involved, the Steam Generator (SG) level monitoring prior to the initiation of the blow down, the mechanism of initiating the blow down, the instrumentation grounding problems and the condensation at the humidity probes. This paper describes these commissioning experiences in respect of process instrumentation.
