variavel0=<b>VALERI V. VLASSOV</b> - vlassov@dem.inpe.br INPE
<b>Abstract.</b> A mathematical model of a hybrid capillary pumped loop (CPL) with two reservoirs (attached to and separated from evaporator) was developed. Selected configuration includes features of a generic CPL with controlled reservoir and of a loop heat pipe with compensation chamber. In the developed model the momentum and mass balance equations are coupled at microscopic and macroscopic (system) levels. Correspondingly, there are two hierarchic parts of model with inter-level interfacing. Such kind of models is introduced as imitation ones, due to potential capability to simulate various operational modes of the device including switching to some failure modes. The main assumption is the shape of interface surfaces can be predicted a priory as a function of given geometry of voids and its rate of flooding with liquid. It allows the performing of tracking of interfaces motion at system level. All mechanisms causing an interface to move were considered: evaporationcondensation, flooding-recession and thermal expansion-contraction. At system level, an equivalent hydraulic network of dynamic structure was established. Interaction between these two levels was accomplished the boundary conditions of microscopic model. The main purpose of the paper is to introduce a new type of the CPL model; therefore no closed numerical algorithm was developed. Nevertheless, some discrete analogous and recommendations for shifting up the variables to the higher time layer were presented.
<b>Keywords.</b> CAPILLARY PUMPED LOOP, LOOP HEAT PIPE, INTERFACE TRACKING, MATHEMATICAL MODEL.