Document Type
Thesis
Date of Award
1980
Abstract
A preliminary investigation revealed that a significant amount of heat transfer does occur when gas bubbles form and translate through a relatively warm liquid. Therefore, a more detailed experiment was conducted to investigate this heat-transfer phenomenon.A heat exchanger was constructed which used warm tap water as the liquid and cool compressed air to form the bubbles. The compressed air was injected through small orifices at rates varying from 100 to 600 cubic feet per hour. The temperature difference between the incoming and outgoing liquid and gas varied from zero to 10° Fahrenheit for the water and from zero to 60° Fahrenheit for the air.The effects of heat-transfer upon the formation and translation of the bubbles through the liquid were isolated by performing experiments with and without heat transfer. It was determined that the heat-transfer rate depends primarily upon the mass flow rate of the air entering the bubbles and the surface area of the bubbles.An analytical investigation was performed using the conservation equations. The experimental data were applied to the energy equation to obtain quantitative heat-transfer rates that varied from 35 BTU per hour to 340 BTU per hour.This analysis provides a means for (1) predicting the effect of varying the inlet water temperature and air flow rates on the heat transfer process during bubble formation and (2) obtaining an approximation to the "true" coefficient of heat transfer.
Recommended Citation
Rogers, Charles P., "Heat Transfer From a Liquid to Gas Bubbles During Formation and Translation of the Bubbles Through the Liquid." (1980). All ETDs from UAB. 7009.
https://digitalcommons.library.uab.edu/etd-collection/7009
Comments
MS - Master of Science/Master of Surgery; ProQuest publication number 31751929