Test device for the investigation of the heat conduction in fluids

摘要

Test device for the investigation of the heat conduction in fluids, comprising:• a metallic core,• an electrical heating device, which is thermally conductively connected with the core, in order to heat the core,• a connected to the electrical heating device, electrical power supply,• a the heating capacity of the electric heating device power measurer detecting,• a metallic outer shell around the core is arranged between the core and the outer jacket a around the core circumferential gap is present,• a cooling device, which is connected heat-conductingly to the outer jacket, in order to cool the outer jacket,• at least one passage for admitting of the fluid in the gap and discharge of the fluid from the gap,• at least a first temperature sensor, which detects the temperature of the core,• at least one second temperature sensor, which detects the temperature of the outer jacket,characterized in that• the core at least one bore which extend in the longitudinal direction and to reduce the mass of the core to be heated has.