Abstract
A transfer function believed to describe the dynamics of pool boiling heat transfer was developed analytically. A feedback system for control of the heater surface temperature was then designed and very successfully operated. It thus became possible to experimentally test the validity of the analytical transfer function. Tests on the controlled heat-transfer process indicated that agreement between predicted and experimental results was good only in the film boiling region. It was concluded that a time delay was involved in the bubble-formation process during nucleate boiling. Taking this time delay into account, a better agreement between predicted and experimental results was obtained.
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