Natural convection from opened- and closed-sided vertical parallel plates from fin-tube configurations
Abstract
Experiments were performed to study the heat (mass) transfer characteristics for natural convection at the face-to-face surfaces of the parallel, square vertical plates. The experiments encompassed conditions where all the sides of the system were open to the ambient as well as conditions where one or both of the sides were closed. In addition, by the insertion of a horizational tube between the plates the experiments were extended to a natural convection fin and tube heat exchanger. The fin and tube heat exchanger configuration experiments showed that the heat transfer rates are independent of the exposed surface area of the plate and that the transfer occurs exclusively at the peripheral regions of the plate surfaces. These findings strongly suggest that, contrary to common belief, the transfer rates are proportional to the perimeter of the plate rather than to its surface area.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- December 1979
- Bibcode:
- 1979PhDT.......113B
- Keywords:
-
- Convective Heat Transfer;
- Fins;
- Flat Plates;
- Flow Distribution;
- Heat Exchangers;
- Rayleigh Number;
- Fluid Mechanics and Heat Transfer