×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Heat Gain - semi hermetic Comp

Heat Gain - semi hermetic Comp

Heat Gain - semi hermetic Comp

(OP)
Does anyone know how to calculate heat gain from a semi hermetic compressor motor?  

RE: Heat Gain - semi hermetic Comp

(OP)
From the motor to the surrounding room.  Doesnt a semi hermetic or hermetic motor partially abosorb some of the heat into internal gases within the vessel?  

RE: Heat Gain - semi hermetic Comp

It's the compressor power input minus the refrigerant mass flow x difference in refrigerant enthalpy from suction to discharge.

If your discharge line is also in the space it will be greater.

RE: Heat Gain - semi hermetic Comp

The heat of compression is what is being created when the refrigerant is compressed from the low pressure side to the high pressure side of the refrigeration cycle.  Additional heat is creted by friction, and with hermatic compressor, from the motor electrical winding.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources