The effect of the transverse nonisothermality of a heat-exchange surface on its thermal characteristics
Abstract
Nusselt numbers have been obtained experimentally for heat-exchange surfaces with straight ducts of triangular cross section for the case of laminar flow of the heat transfer agent. It is found that the experimentally determined thermal performance of a surface having high heat conductivity is 25-45% better than that of a low-conductivity surface. It is concluded that the transverse heat conductivity of materials must be taken into account when designing plate-type and finned heat exchangers.
- Publication:
-
Promyshlennaia Teplotekhnika
- Pub Date:
- October 1982
- Bibcode:
- 1982ProTe...4...38M
- Keywords:
-
- Gas Turbine Engines;
- Heat Exchangers;
- Laminar Heat Transfer;
- Nonisothermal Processes;
- Thermal Conductivity;
- Engine Design;
- Heat Transfer Coefficients;
- Nusselt Number;
- Regenerators;
- Surface Properties;
- Fluid Mechanics and Heat Transfer