Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] Heat transfer lab



I suspect any 'boiler system' has to have a way to equalize to atm pressure when the heat is off.
It's designed for pressure - but couldn't handle the vacuum that would result upon cool down?

At 9:17 AM -0800 11/19/10, Bernard Cleyet wrote:
bc, still puzzled by from where the air comes. (Gets in the system.) Since it's a closed system, I'd think any initially dissolved air would soon be expelled. In domestic water systems such air is necessary to prevent water hammer.