[Beowulf] ammonite
Many of your questions may have already been answered in earlier discussions or in the FAQ. The search results page will indicate current discussions as well as past list serves, articles, and papers.
Jim Lux James.P.Lux at jpl.nasa.govMon Oct 4 16:11:30 PDT 2004
- Previous message: [Beowulf] ammonite
- Next message: [Beowulf] ammonite
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
At 03:19 PM 10/4/2004 -0700, Jack Wathey wrote: >http://jessen.ch/ammonite/ Very nice.. particularly the efforts you put into the cooling air. The comment about flow against a pressure drop is very sound. I realize it's a time thing, but had you considered removing the fans from the power supplies? What's a rough order of magnitude cost on the blower/VFD? Does this VFD have a "servo" input that could be used to automatically change blower speed in response to temperature? (some VFDs have an analog input that can be used to set up a speed = linear function of input voltage, and by cleverly setting the gain and offset, you can do quite nicely) James Lux, P.E. Spacecraft Radio Frequency Subsystems Flight Telecommunications Systems Jet Propulsion Laboratory, Mail Stop 161-213 4800 Oak Grove Drive Pasadena CA 91109 tel: (818)354-2075 fax: (818)393-6875
- Previous message: [Beowulf] ammonite
- Next message: [Beowulf] ammonite
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
More information about the Beowulf mailing list