Direct condensation by humid air
Abstract
The practicability of direct condensation with humid air (DKFL) for waste heat removal from thermal power plants was investigated with regard to technical, economical and environmental aspects. The adjustment of a uniform trickling-water film was examined. A vertical test tube was erected to study the phenomenon of a trickling-water film. A pilot plant with a vertical tube-bundle was installed to evaluate the main process parameters. The applicability of the cooling system is judged. A theoretical model was derived for the design of a DKFL apparatus. A vertical geometry for the test tube has essential operational and economical advantages in comparison with a horizontal one.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1980
- Bibcode:
- 1980STIN...8133445S
- Keywords:
-
- Air Cooling;
- Electric Power Plants;
- Film Condensation;
- Tube Heat Exchangers;
- Economic Factors;
- Laminar Heat Transfer;
- Turbulent Heat Transfer;
- Fluid Mechanics and Heat Transfer