Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL ANALYSIS OF A BIPHASIC CIRCUIT WITH PUMPING EFFECTS BY CAPILLARITY USIGN TWO EVAPORATORS IN PARALLEL
Submission Author:
Jefferson Gomes do Nascimento , MG , Brazil
Co-Authors:
Jefferson Gomes do Nascimento, Alisson Figueiredo, Eduardo Peixoto de Oliveira
Presenter: Eduardo Peixoto de Oliveira
doi://10.26678/ABCM.ENCIT2018.CIT18-0293
Abstract
The biphasic pumping circuits by capillarity effects (BFDPT) are passive heat transfer systems, widely used in the aerospace industry (thermal satellite control). Unlike classical cooling circuits, the fluid of a BFDPT does not circulate in the circuit due to a pump, but through the capillarity forces created in the porous medium of the evaporator that put the fluid in motion, transforming it in a totally autonomous and passive system. In addition, the fluid exchanges phase between the hot source (evaporator) and the cold source (condenser). This phenomenon considerably increases the heat transfer capacity of biphasic circuits in relation to classical cooling. Biphasic circuit work have been and is still conducted in laboratories, including parallel evaporators and parallel condensers to the system to adapt or improve the thermal control capability of the system in focus.
Keywords
space industry, capillary forces, evaporator, condenser
