Q&A – What is a Back Pressure Turbine and what is a Condensing Turbine?

Back Pressure Turbines: a type of steam turbine that is used in connection with industrial processes where there is a need for low or medium pressure steam. The high pressure steam enters the back pressure steam turbine and while the steam expands – part of its thermal energy is converted into mechanical energy. The mechanical energy is used to run an electric generator or mechanical equipment, such as pumps, fans, compressors etc.

The outlet steam leaves the back pressure steam turbine at “overpressure” and then the steam returns to the plant for process steam application such as heating or drying purposes.

Back Pressure Turbine

Condensing Turbines: Inside a condensing turbine – the steam expands below the atmospheric pressure and then “condenses” while heating the cooling water in a condenser.

After the steam exits the outlet of the condensing turbine, the steam’s pressure is so low; it is no longer available for providing power for industrial applications. Condensing turbines could be used in industrial power plants as condensing tails connected to back-pressure turbines. In cases of low demand for process steam the steam surplus is run through the condensing tail to generate more power.  A condensing turbine does not differ much from a back-pressure turbine in respect of its’ overall dimensions, steam values (with the exception of outlet pressure), delivery time and price.  The steam condensing equipment requires some additional “balance of plant” investments plus the availability of cooling water.  A 1 MW condensing turbine plant needs about 0.1 m3/s of cooling water.

Condensing Steam Turbine

This text is an extract from questions gathered from numerous queries of anonymous people in the Piping Engineering and Design profession. The answers or discussion of the topics were provided by James O. Pennock. Images obtained from www.coastalflange.com

7 Comments

  1. เชอรี่สามโคก on 21st February 2019 at 9:17 pm

    Appreciatе this post. Will try it out.



  2. สวิงกิ้ง on 10th June 2019 at 5:57 pm

    Great article! We ɑre linkіng to this great p᧐st on our website.
    Keep սp the great writing.



  3. คลิป on 21st August 2019 at 5:31 am

    Hi, I d᧐ think tһis is a great website. I stumbⅼedupon it 😉 I will come back ʏet
    again since i have saᴠed as ɑ favorite it.
    Money and freedom is the greatest way to chɑnge, may you be rich and continue to guide other ρeople.



  4. xvideo on 28th August 2019 at 11:06 am

    Tһis is a topic that is cloѕe to my heaгt…

    Best wishes! Where are your contact details though?



  5. xvideo on 19th September 2019 at 11:23 am

    I’m not ѕure where you’re gettіng your informatіon, but great topic.
    I needs to sрend some tіme lеarning much more or understanding more.
    Ꭲhanks for maցnificent inf᧐rmation I was looking for this info foг my mіssion.



  6. Halter Bra Set - Reviewers Wanted! on 24th September 2019 at 11:33 pm

    We are currently searching for product reviewers to review our new sexy nightwear Pink Lingerie collection such as Retro Waist Cincher Garter Belt. If this sounds like you, get in touch on https://www.essence.com/fashion/runway-ready-ultimate-nyfw-designer-guide/



  7. หนังโป๊ออนไลน์ on 29th November 2019 at 9:12 pm

    Howdy! I know this іs kinda off topic but Ӏ was wondering wһich Ƅlog platform are you using
    for this site? I’m getting fed up of Wordpreѕs because I’ve had
    problems with hackeгs and I’m loօking at alternatіves for another platform.
    I would bе awesome if you could point me in the directіon of a good platform.



Leave a Comment