TWO-DIMENSIONAL MODELLING OF POROUS HEAT PIPES
A numerical tool has been developed to investigate the performance of simple homogeneous, or composite, porous heat pipes. It allows a transient, two-dimensional analysis of the whole device, including the condenser and evaporator sections. Off-limits operating conditions can be described, where conduction-dominated regions are formed, fully saturated with subcooled liquid or superheated steam. The model describes the transport of mass and energy by single or two-phase flow, driven by capillarity and gravity. Specific numerical techniques are used to solve the resulting set of highly non-linear partial differential equations. An illustrative example is presented, simulating a composite sodium-filled porous heat pipe, subject to various boundary conditions.
Bibliographic Reference: SIXTH INTERNATIONAL HEAT PIPE CONFERENCE, GRENOBLE (FRANCE), MAY 25-29, 1987 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 33348 ORA
Availability: Can be ordered online
Record Number: 1989126015000 / Last updated on: 1989-03-01
Available languages: en