Heat transfer data were taken for methanol and Freon-12 condensing inside a horizontal tube over considerable ranges of pressure, temperature driving force, liquid loading, and vapor velocity.
A single mechanism for heat transfer could not explain the behavior of this and other data over the entire range of the variables. For condensation in a horizontal tube, three primary regions of flow are postulated: (1) semi-stratified flow (annular condensation and run-down superimposed on stratified flow), (2) laminar annular flow, and (3) turbulent annular flow.
A semi-theoretical equation, NuPr-1/3=0.388 M1/6DGvm r/rv 1/21/4 is developed and shown to be applicable to both semi-stratified and laminar annular flow. Other equations must be used for turbulent annular flow.
| Identifer | oai:union.ndltd.org:RICE/oai:scholarship.rice.edu:1911/18428 |
| Date | January 1957 |
| Creators | Rosson, Harold F. |
| Source Sets | Rice University |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | application/pdf |
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