Measurements of energy distribution and wall temperature in flowing hydrogen microwave plasma systemsAn electrothermal propulsion concept utilizing a microwave plasma system as the mechanism to convert electromagnetic energy into translational energy of the flowing gas is being investigated. A calorimetric experimental system has been designed and built enclosing the microwave plasma system to accurately determine the net energy transferred to the flowing gas. For a flow rate of 8900 micromoles/sec, a pressure of 7.4 torr, and an absorbed power level of 80 W, an energy transfer efficiency of 50 percent has been measured. A heat transfer model that characterizes the energy transfer processes in the plasma is developed. A wall temperature for the plasma system is calculated.
Document ID
19860026263
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chapman, R. (Michigan State Univ. East Lansing, MI, United States)
Finzel, M. (Michigan State Univ. East Lansing, MI, United States)
Hawley, M. C. (Michigan State University East Lansing, United States)