METHOD OF DETERMINING VOLUME OF FREE GAS INCLUSIONS IN WORK BODY OF HYDRAULIC SYSTEM OF SPACE OBJECT THERMAL CONTROL WITH HYDROPNEUMATIC COMPENSATOR

摘要

FIELD: transport.;SUBSTANCE: invention relates to development and operation of manned spacecraft thermal control systems. Proposed method comprises repeated measurement of the volume of hydropneumatic compensator (HPC) gas volume with the help of reference vessel. Note here that one and the same initial, primarily, static operating pressure is maintained in HPC gas chamber. Initial pressures are maintained in reference vessel that lie in the range of tolerable operating pressure but differs from each other and from initial HPC pressure. Said pressures differs by at least summed magnitude corresponding to HPC media separator rigidity and tolerable error on pressure gages. Target volume of free gas inclusions is defined proceeding from reference vessel volume, initial pressures in HPC gas chambers and reference vessel, as well as steady-state air pressure in integrated volumes of HPC gas chamber and reference vessel in first and second measurements.;EFFECT: high-accuracy method of determining of volume of free gas inclusions irrespective of current volume of HPC gas chamber.;4 dwg