Calculation of quench pressures in pool boiling magnets

Certain situations such as a quench and/or a loss of vacuum can produce sufficient heating to the liquid helium in a pool boiling magnet to cause a significant pressure rise. In support of the LCP magnet design effort at General Dynamics Convair Division, a computer program was developed to assist in the design of the vent system. This paper presents the development of the thermal model, the assumption made, and a logical flow diagram for the computational procedure. The heat transfer to the liquid helium during the fault condition is the most significant assumption affecting the vent system design. 2 refs