Heat transfer in pressurized liquid hydrogen at low values of film Delta T
Abstract
Experimental tests to verify heat transfer effectiveness from heated plates to pressurized liquid hydrogen were conducted. These tests were intended to model a high-purity aluminum inductor coil designed to be cooled by flowing liquid hydrogen over the coil's conductor surfaces. A flow test apparatus was constructed to simulate the surface cooling of the coil. Liquid hydrogen at 7 to 10 atm pressure was directed through flow channels. Variables within the experiment included plate surface heat flux, liquid hydrogen velocity, flow channel thickness, and supply tank pressure. Values of film Delta T as a function of plate surface heat flux for different flow rates are compared to analytical calculations.
- Publication:
-
Advances in Cryogenic Engineering. Vol. 35B - Proceedings of the 1989 Cryogenic Engineering Conference
- Pub Date:
- 1990
- Bibcode:
- 1990ACGE...35..413D
- Keywords:
-
- Channel Flow;
- Cryogenic Equipment;
- Heat Transfer;
- Liquid Hydrogen;
- Temperature Gradients;
- Analog Simulation;
- Flow Velocity;
- Heat Flux;
- Thin Films;
- Engineering (General)