The Naked Scientists

The Naked Scientists Forum

Author Topic: Does steam temperature change with air pressure?  (Read 1192 times)

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • Posts: 511
  • Thanked: 12 times
    • View Profile
Does steam temperature change with air pressure?
« on: 14/07/2012 00:30:01 »
Dipesh S Shah  asked the Naked Scientists:
   
Dear Mr Chris,

Greetings to you.

I am writing a mail first time to you seeking your help.

In our plant, we have a Kettle into which we provide steam and raise the temperature to cook a product. The final temp we require is 85 deg C. There is also a vacuum pump attached to it. My question is will there be any variation in temperature if there is a change in vacuum.

Looing forward to your reply soon.

Regards

Dipesh Shah

What do you think?
« Last Edit: 14/07/2012 00:30:01 by _system »


 

Offline Geezer

  • Neilep Level Member
  • ******
  • Posts: 8328
  • "Vive la résistance!"
    • View Profile
Re: Does steam temperature change with air pressure?
« Reply #1 on: 14/07/2012 00:45:23 »
Yes; if you evacuate the kettle and maintain it below atmospheric pressure, the water will boil at a lower temperature, so you could maintain a constant temperature in the kettle with a vacuum pump. However, it might be simpler (and a lot more economical) to control the device that is heating the kettle with a thermostat of some sort to maintain the water temperature at 85 deg C.
 

The Naked Scientists Forum

Re: Does steam temperature change with air pressure?
« Reply #1 on: 14/07/2012 00:45:23 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums
 
Login
Login with username, password and session length