Atmospheric Cloud Physics Laboratory thermal controlThe paper presents the development background and the present status of the Atmospheric Cloud Physics Laboratory (ACPL) thermal control capability. The ACPL, a Spacelab payload, is currently in the initial flight hardware development phase for a first flight scheduled in June 1981. The ACPL is intended as a facility for conducting a wide variety of cloud microphysics experimentation under zero gravity conditions. The cloud chambers, which are key elements of the ACPL, have stringent thermal requirements. Thus the expansion chamber inner walls must be uniform to within + or - 0.1 C during both steady-state and transient operation over a temperature range of +30 to -25 C. Design progression of the expansion chamber, from early in-house NASA-MSFC concepts (including test results of a prototype chamber) to a thermal control concept currently under development, is discussed.
Document ID
19790028545
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Moses, J. L. (NASA Marshall Space Flight Center Engineering Analysis Div., Huntsville, Ala., United States)
Fogal, G. L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Scollon, T. R., Jr. (General Electric Co., Missiles and Space Div., Valley Forge Pa., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Subject Category
Ground Support Systems And Facilities (Space)
Report/Patent Number
ASME PAPER 78-ENAS-9
Meeting Information
Meeting: American Society of Mechanical Engineers, Intersociety Conference on Environmental Systems