Coal fired prototype high temperature continuous flow heat exchanger. AF-684 research project 545-1
Abstract
The material investigated was siliconized silicon carbide. The results achieved included: identification of system performance requirements, combustor/heat exchanger module dimensions and layout, and the required critical component research; fabrication of U-bend tubes, tube-to-header joints, tube-to-tube joints and a ten-tube heat exchanger module that was tested at temperature; proved helium containment at 2250 F and 500 psia; performed crack propagation, thermal cycling and mechanical torsion tests with ceramic samples, proving that no erosion or corrosion occurred when ceramic tubes were subjected to molten coal slag and that coal slag could be removed by melt-off; and completion of a conceptual design of a combustor/heat exchanger for test with a small engine.
- Publication:
-
Final Report
- Pub Date:
- February 1978
- Bibcode:
- 1978amc..reptS.....
- Keywords:
-
- Coal Utilization;
- Continuum Flow;
- Heat Exchangers;
- Ceramics;
- High Temperature;
- Mechanical Properties;
- Prototypes;
- Research Projects;
- Silicon Carbides;
- Systems Analysis;
- Fluid Mechanics and Heat Transfer