Guarded Flat Plate Cryogenic Test Apparatus and Calorimeter (C-600)

Fesmire, James E [Inventor]Johnson, Wesley L [Inventor]

关键词: CRYOGENICS;    FLAT PLATES;    TEST CHAMBERS;    CALORIMETERS;    THERMAL ENERGY;    PATENTS;   

RP-ID  :  US-Patent-10,024,812, US-Patent-Appl-SN-15/592,356

学科分类：工程和技术（综合）

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A test apparatus for thermal energy measurement of disk-shaped test specimens has a cold mass assembly locatable within a sealable chamber with a guard vessel having a guard chamber to receive a liquid fluid and a bottom surface to contact a cold side of a test specimen, and a test vessel having a test chamber to receive a liquid fluid and encompassed on one side by a center portion of the bottom surface shared with the guard vessel. A lateral wall assembly of the test vessel is closed by a vessel top, the lateral wall assembly comprising an outer wall and an inner wall having opposing surfaces that define a thermal break including a condensable vapor pocket to inhibit heat transfer through the lateral wall from the guard vessel to the test vessel. A warm boundary temperature surface is in thermal communication with a lower surface of the test specimen.