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Re: [Phys-l] Heat transfer lab

Air in a closed system? (Valve only opens when the p(in) > p(out). On cooling is partial vacuumed.

bc thinks a leaky system would result in sickness (mold)


On 2010, Nov 17, , at 20:25, LaMontagne, Bob wrote:

That is basically what I said in my original posting. Sometimes the relief valve get stuck. That radiator remains cold while all the rest in the house operate normally. If the valve is replaced, the radiator works again. Some release is necessary for the radiator to work.

Bob at PC

________________________________________
From: phys-l-bounces@carnot.physics.buffalo.edu [phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Michael Edmiston [edmiston@bluffton.edu]
Sent: Wednesday, November 17, 2010 9:37 PM
To: betwys1@sbcglobal.net; Forum for Physics Educators
Subject: Re: [Phys-l] Heat transfer lab

One set of my grandparents had a one-pipe steam system. It was explained to
me that the vent was to let the air out. This makes sense. When the system
starts up, there is air at atmospheric pressure in the radiator.