×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*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.

# Working out the Heat Pump Capacity using Flow and Return Values

 Forum Search FAQs Links MVPs

## Working out the Heat Pump Capacity using Flow and Return Values

(OP)
Hi,

This is the first time I am working with Heat Pumps.

How do I work out the Heat Pump Capacity using given Flow IN/OUT values? Is there a standard equation I can improvise with?

thanks

### RE: Working out the Heat Pump Capacity using Flow and Return Values

Homework?
You could look at the nameplate......

### RE: Working out the Heat Pump Capacity using Flow and Return Values

Rejected heat = cooling capacity + compressor input. Work out the formula for each in Btu/hr or similar unit.

Q=m*cp*ΔT

### RE: Working out the Heat Pump Capacity using Flow and Return Values

EnergyProfessional's response is the best way to find rated capacity. After you find the unit model no. go to the manufacturer's web site and find table of capacity based on cfm, gpm and entering water temperature. Note that rejected heat = cooling load + compressor input. Measuring flows and temperature rise would only give you cooling load at the particular instance, not rated capacity.

#### 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.

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

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

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!