Prediction of two-phase thermosyphon throughput by self developed cae program

Abstract

Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.Computer Aided Engineering (CAE) program for prediction of two-phase closed thermosyphon throughput is developed. Thermosyphon working fluids under consideration are modern refrigerants (R404A, R407C, R134A etc.). Program is cross-platform - written in Java language. Solution process of temperatures and heat flux is done by iterative scheme. It is also a tool facilitating experimental process - automating documentation of measurements and providing fast validation. Throughput and mean temperatures computed are compared with experimental data. Empirical coefficients are matched expressing influence of different filling volumes (ratios) on heat transfer. Various modes of heat transfer are included for cooling and heating of condenser/evaporator section.