Recent content by oosullivan

  1. O

    Graduate Time needed to freeze an insulated pipe

    Thats great thanks for your help Chester!
  2. O

    Graduate Time needed to freeze an insulated pipe

    Interesting thank you Chester, the handbook is the SI unit version (see below snippet)
  3. O

    Graduate Time needed to freeze an insulated pipe

    It was the equation given from the ASHRAE handbook, chapter 23
  4. O

    Graduate Time needed to freeze an insulated pipe

    This is my tidied excel sheet with the formulas given below, I feel my value should be closer to ~10hours
  5. O

    Graduate Time needed to freeze an insulated pipe

    Hi - I'm using the ASHRAE guide equation to determine the time to freeze an insulated pipe and im comparing the values they used to their published table as a guide and I seem to be off by the same value as the Rt value, and I dont think they have neglected the thermal resistance of the...