SHUTTLE ACTIVE THERMAL CONTROL SYSTEM DEVELOPMENT TESTING VOLUME II MODULAR RADIATOR SYSTEM TESTS

摘要

A three-week test of a Modular Radiator System (MRS) was conducted in the Space Environment Simulation Laboratory (SESL) at the Johnson Space Center (JSC) during the time period March 5 through 23, 1973. The tests were designed to Investigate the validity of the ''modular" approach to space radiator system design for Space Shuttle and future applications by gathering performance data on various systems comprised of different numbers of identical panels, subject to nominal and extreme heat loads and environments. Both one-sided and two-sided radiation was tested, and engineering data was gathered on simulated low a/e coatings and system response to changes in outlet temp¬erature control point.nThe results of the testing showed system stability throughout nominal orbital transients, unrealistically skewed environments, freeze-thaw transients, and rapid changes in outlet temperature control point. Various alternative panel plumbing arrangements were tested with no significant changes in performance being observed.