Heating and cooling system
Abstract
A heating and cooling apparatus capable of cyclic heating and cooling of a test specimen undergoing fatigue testing is discussed. Cryogenic fluid is passed through a block clamped to the speciment to cool the block and the specimen. Heating cartridges penetrate the block to heat the block and the specimen to very hot temperaures. Control apparatus is provided to alternatively activate the cooling and heating modes to effect cyclic heating and cooling between very hot and very cold temperatures. The block is constructed of minimal mass to facilitate the rapid temperature changes.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- August 1982
- Bibcode:
- 1982nasa.rept.....I
- Keywords:
-
- Cooling;
- Fatigue Tests;
- Heating;
- High Temperature Tests;
- Low Temperature Tests;
- Temperature Control;
- Cryogenic Fluids;
- Environment Simulation;
- Patents;
- Fluid Mechanics and Heat Transfer