Performance characteristics of HENDEL M1 loop

The helium engineering demonstration loop (HENDEL) at JAERI is designed as a large-scale model test facility for demonstrative operation of high-temperature components, such as a fuel stack, an in-core structure, an intermidiate heat exchanger, high-temperature pipings and valves of the experimental very high-temperature gas cooled reactor (VHTR). The HENDEL is supposed to be operated under the simulated conditions of the VHTR. The HENDEL consists of the first and second helium gas loops (M1 and M2 loops) and six test sections, the first of which was completed and the others are being designed. This report describes operational data of components (heater, blower and cooler) and overall performance of the first loop (M1 loop), during the test operations until March, 1983. M1 loop is to provide helium gas of 450 0C, 0.4 kg/s and 4.0 MPa to a fuel stack test section (T1). (author)