Accession Number : AD0893928

Title :   Experimental Investigation of Venting Water into a Vacuum.

Descriptive Note : Final rept. 9 Aug-20 Oct 71,

Corporate Author : ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN

Personal Author(s) : Busby, M. R.

Report Date : MAY 1972

Pagination or Media Count : 53

Abstract : A study was undertaken to investigate the improvement of the venting characteristics for the Skylab environmental control system (ECS) condensate dump system. The appropriate test apparatus was assembled, and a systematic investigation was undertaken. Water venting experiments were conducted in the 4- by 6-ft Research Vacuum Chamber of the von Karman Gas Dynamics Facility. Nineteen nozzle configurations were tested, and a design which reduces the icing problem was found. A nozzle constructed from a 1/4-in.-diam tube with two 0.05-in.-diam orifices is compatible with the presently designed Skylab venting system, and icing during venting has been significantly reduced at pressures that would be encountered in spacecraft operation. (Author)

Descriptors :   *WASTES(SANITARY ENGINEERING)), (*SPACE STATIONS, WATER, VACUUM, VENTING, SPACE ENVIRONMENTS, CLOSED ECOLOGICAL SYSTEMS, EXPERIMENTAL DATA.

Subject Categories : Manned Spacecraft
      Life Support Systems
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE