Heat exchanger performance calculations for enhanced-tube condenser applications
The lack of a prediction method is sometimes used for the rejection of enhanced tubes for some condenser applications even though there is ample data from single-tube condensing experiments. Three methods are discussed that can be used to rate and/or size these multitube units based on the single-tube experimental results. The Kern vertical-number correction appears to be quite adequate for most operating conditions, the exceptions being large sizes and/or deep vacuum operation. The bundle-factor method is preferred for these applications; however, field test results are required to obtain this factor. If performance data are not available, pointwise or numerical methods are required but special care must be taken to insure that the adverse effects of noncondensable gas pockets and the saturation-temperature depression are properly addressed.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5097545
- Report Number(s):
- ANL/CP-75985; CONF-920804-17; ON: DE92016603
- Resource Relation:
- Conference: American Society of Mechanical Engineers national heat transfer conference and exposition, San Diego, CA (United States), 9-12 Aug 1992
- Country of Publication:
- United States
- Language:
- English
Similar Records
Reflux condensation of pure vapors with and without a noncondensable gas inside plain and enhanced tubes
Local and overall condensation heat transfer behavior in horizontal tube bundles