×
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

Energy Recovery

Energy Recovery

Energy Recovery

(OP)
I have a energy recovery question here. In a farm, they have their own biomass boilers to generate power, but the energy waste is high. They use a lot of cooling fan to cool down the saturated steam after the turbine generator. A lot of the steam is injected into the atmosphere too. No chillers were installed.

In the summer season, they can still use the excess heat to dry up corps. But, So of the time, the after process steam is hard to deal with.

They are now planning to recover the wasted energy. Preferably using the excess energy for either industrial refrigiration (like cold storage for food) or even air-conditioning (cooling office space). If not, at least they can stop using so many cooling fan or inject the after process steam out of the system.

My questions are:
1. How can they do that?
2. What are chillers?
3. Is there such a thing as a compressor (in refrigeration cycle -- compressor, condensor, expension valve blah blah blah, not the same as steam compressor that add pressure to the steam) that can run from the superheated steam like the turbine generator?
4. It will be very much appreciated else can you direct me to the sources where I can find the solutions to the problem?

Thank you very much.

RE: Energy Recovery

Depending on the steams pressure and temperature and available mass flow, absorption chillers could be used to produce refrigeration or cooling.

For low temperatures; ammonia/water absorption chillers could be used.

For high temperature (comfort cooling) with circulating fluids cooled to about 40F, lithium bromide/water absorption units are available from most major manufacturers: Trane, carrier, York, McQuay and many japanese and korean manufacturers.

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