1973-02-01

Airflow Phenomena in the Louvered-Fin Heat Exchanger 730237

Experiments were performed with a 5:1 scale model of a portion of a typical louvered-fin heat-exchanger core in a controlled turbulence wind tunnel to determine whether full-scale heat-exchanger characteristics could be obtained from large-scale data. The air-pressure drop and heat-transfer rate of the model core were measured and compared with the full-scale data in terms of drag coefficient and Nusselt number as a function of Reynolds number based on the face velocity. These data showed a close correlation between the model and full-scale cores. It is concluded that the airflow phenomena are similar for the full-scale and model cores.
In addition to the pressure drop and heat-transfer measurements, distributions of airspeed and air temperature at selected locations in the wake were taken with hot wire and thermocouple probes. These distributions provided a detailed description of local airflow phenomena in the core.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X