@Article{Vlassov:2008:AnHeSp,
               author = "Vlassov, Valeri V.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Analysis of heat spreading performance of acetone-filled heat pipe 
                         at low temperatures for using in satellite honeycomb panels",
              journal = "Journal of Aerospace Engineering, Sciences and Applications",
                 year = "2008",
               volume = "1",
               number = "1",
             keywords = "heat pipe, mathematical model, honeycomb panel, operation limit.",
             abstract = "the heat pipe (HP) performance under low temperatures is 
                         theoretically studied. The developed mathematical model describes 
                         the HP behavior under conditions when locations of the evaporator 
                         and condenser sections are not defined a priori and can eventually 
                         be changed during the HP operation. Typical application of such a 
                         HP configuration is the thermo-stabilized structural honeycomb 
                         panel of satellites. Usually the ammonia is used in these HP 
                         applications; however the acetone is investigated as a low 
                         hazardous alternative of the working fluid. This paper aims to 
                         examine how the acetone HP will perform under cold conditions 
                         close to the viscous and sonic limits. Once the limit is violated, 
                         the spots of local dry-out occur. The numerical algorithm used in 
                         the model is based on the control volumes approach. Energy balance 
                         on the equipment-panel level is solved in conjunction with the 
                         working fluid momentum and mass conservation along HP axial 
                         direction. Dynamic variations of wetting angle and groove flooding 
                         are taken into account. The scenarios of normal operation, 
                         start-up, local dry-out and warming up are investigated.",
                 issn = "2236-577X",
             language = "en",
           targetfile = "1-Vlassov.pdf",
        urlaccessdate = "12 maio 2024"
}