A new linearized theory of laminar film condensation of two phase annular flow in a capillary pumped loopFuture large space based facilities, such as Space Station, will require energy management systems capable of transporting tens of kilowatts of heat over a hundred meters or more. This represents better than an order of magnitude improvement over current technology. Two-phase thermal systems are currently being developed to meet this challenge. Condensation heat transfer plays a very important role in this system. The present study attempts an analytic solution to the set of linearized partial differential equations. The axial velocity and temperature functions were found to be Bessel functions which have oscillatory behavior. This result agrees qualitatively with the experimental evidence from tests at both NASA Goddard Space Flight Center and elsewhere.
Document ID
19880056488
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hsu, Y. K. (Maine, University Orono, United States)
Swanson, T. (Maine Univ. Orono, ME, United States)
Mcintosh, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)