Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: JEFF1
  • Content: Threads
  • Order by date
  1. JEFF1

    Unsteady Flow in Chilled Water Piping

    Has anyone witnessed unstable (unsteady) flow in a chilled water system, where GPM surges are observed?  I know of two situations where flowmeters indicate a cyclic change in flow of large magnitude in a period of seconds.  For one of the two locations, the cyclic nature of...
  2. JEFF1

    Magnetic Refrigeration

    Mechanical Engineering magazine had an interesting article in December '94 r.e. the future of magnetic refrigeration. I'm interested in knowing whether this is moving anywhere with respect to conventional HVAC equipment. There was some speculation at the time that it might be applicable to...
  3. JEFF1

    Pressurized Water Reactors

    I do not work in the nuclear industry. However, I work with a district heating system that uses pressurized hot water. I would like to know if there is a similar experience base in the two industries. Specifically, in a typical district heating system, one might be dealing with 380 F...
  4. JEFF1

    Chilled Water Systems for Building HVAC - Achieving High Temp. Rise

    I work at an airport with a large chilled water system, 2.2 million gallons of chilled water storage, 5 chillers @1150 tons, and a design water temperature rise of 18 F (starting with 42 F water). We've learned some valuable things about achieving a high water temperature rise. I'm interested...
  5. JEFF1

    Leaking head gaskets in a large heat exchanger with high delta-T's

    The heat exchanger is about 14 feet long, has "high temperature water" (primary side) entering at 380 F, approximately 32" head gasket diameter, 4 pass, and secondary water entering at approximately 150 F. High water temperature drop on the primary (say 200 F) and minimal temperature rise on...

Part and Inventory Search

Back
Top