Heat loss measuring device of system thermal engineering experimental equipment and method thereof

Abstract

The invention discloses a heat loss measuring device of system thermal engineering experimental equipment and a method thereof. The method includes: step 1, determining a device of the system thermalengineering experimental equipment and covering the outer side of the device with thermal insulation cotton; step 2, injecting one or more components-containing working media into the device, and recording mass mf of an individual component and specific heat capacity cp of fluid; step 3, turning off an upper isolation valve and a lower isolation valve, and conducting loop isolation on the device to form an area to be measured; step 4, heating the device in the area to be measured, stopping heating when the temperature of the device reaches a preset temperature, and then timing; step 5, conducting real-time measurement, storing a temperature Tso at an outer wall temperature measurement point, a temperature Tsi at an inner wall temperature measurement point and a temperature Tf of the fluidin the device, and stopping the measurement when the temperature of the device is reduced to the lower limit temperature; step 6: using a data processing system to obtain solid wall mass ms, solid wall specific heat capacity cps, a temperature Tsi at the outer wall temperature measurement point, and a temperature Tso at an inner wall temperature measurement point from the area to be measured.

Description

technical field [0001] The invention relates to a measurement method, in particular to a heat loss measurement device of a system thermal experiment device and a method thereof. Background technique [0002] The large-scale system thermal experimental device is the hardware basis for engineering verification experiments in the field of reactor thermal engineering, and the obtained experimental data has important guiding significance for verifying the design of nuclear energy systems. Due to the large volume of equipment in this experimental device, complex piping connections, and various working fluids in the equipment, it is difficult to directly evaluate the heat dissipation of the device to the environment. The uncertainty of the thermal conditions at the boundary of this equipment makes the analysis of the physical laws and Verification evaluation of calculation programs becomes extremely difficult. Therefore, how to determine the heat loss of large-scale system thermal...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a basis for the experimental data analysis ...

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