Passive heat removal system installed at unit 2 of Rooppur nuke plant | The Business Standard
Skip to main content
  • Latest
  • Economy
    • Banking
    • Stocks
    • Industry
    • Analysis
    • Bazaar
    • RMG
    • Corporates
    • Aviation
  • Videos
    • TBS Today
    • TBS Stories
    • TBS World
    • News of the day
    • TBS Programs
    • Podcast
    • Editor's Pick
  • World+Biz
  • Features
    • Panorama
    • The Big Picture
    • Pursuit
    • Habitat
    • Thoughts
    • Splash
    • Mode
    • Tech
    • Explorer
    • Brands
    • In Focus
    • Book Review
    • Earth
    • Food
    • Luxury
    • Wheels
  • Subscribe
    • Get the Paper
    • Epaper
    • GOVT. Ad
  • More
    • Sports
    • TBS Graduates
    • Bangladesh
    • Supplement
    • Infograph
    • Archive
    • Gallery
    • Long Read
    • Interviews
    • Offbeat
    • Magazine
    • Climate Change
    • Health
    • Cartoons
  • বাংলা
The Business Standard

Wednesday
July 23, 2025

Sign In
Subscribe
  • Latest
  • Economy
    • Banking
    • Stocks
    • Industry
    • Analysis
    • Bazaar
    • RMG
    • Corporates
    • Aviation
  • Videos
    • TBS Today
    • TBS Stories
    • TBS World
    • News of the day
    • TBS Programs
    • Podcast
    • Editor's Pick
  • World+Biz
  • Features
    • Panorama
    • The Big Picture
    • Pursuit
    • Habitat
    • Thoughts
    • Splash
    • Mode
    • Tech
    • Explorer
    • Brands
    • In Focus
    • Book Review
    • Earth
    • Food
    • Luxury
    • Wheels
  • Subscribe
    • Get the Paper
    • Epaper
    • GOVT. Ad
  • More
    • Sports
    • TBS Graduates
    • Bangladesh
    • Supplement
    • Infograph
    • Archive
    • Gallery
    • Long Read
    • Interviews
    • Offbeat
    • Magazine
    • Climate Change
    • Health
    • Cartoons
  • বাংলা
WEDNESDAY, JULY 23, 2025
Passive heat removal system installed at unit 2 of Rooppur nuke plant

Energy

TBS Report
27 January, 2024, 04:00 pm
Last modified: 27 January, 2024, 04:37 pm

Related News

  • Loan tenure for Rooppur plant extended 
  • First unit of Rooppur Nuclear Power Plant likely to be launched by end of this year: Russian ambassador
  • Rooppur Nuclear Power to join national grid by December: Adviser Asif
  • 18 engineers of Rooppur Nuclear Power Plant dismissed following week-long unrest
  • PDB to sign power purchase deal with Rooppur nuclear plant 

Passive heat removal system installed at unit 2 of Rooppur nuke plant

The PHRS deflector is an aerodynamic structure designed to augment thrust in the ventilation channel and to increase the efficiency of the ventilation system.

TBS Report
27 January, 2024, 04:00 pm
Last modified: 27 January, 2024, 04:37 pm
Two lead geodetic engineers, a team of five highly qualified welders, and 42 installers of steel structures were engaged in the installation of the Passive Heat Removal System. Photo: Courtesy
Two lead geodetic engineers, a team of five highly qualified welders, and 42 installers of steel structures were engaged in the installation of the Passive Heat Removal System. Photo: Courtesy

The inner and outer parts of the steel structure of the Passive Heat Removal System (PHRS) Deflector were installed in the design position of unit 2 of the Rooppur Nuclear Power Project.

The system, which operates without human interference and any power supply source, was installed in just two days, setting a record for such operation, reads a Rosatom press release issued today (27 January). 

"Installing two parts of PHRS Deflector in the design position in two days is a record. The next step is the installation of steel structures of PHRS deflector service platforms and installation of air ducts of the passive heat removal system", said Alexey Deriy, ASE Vice President and Director of Rooppur NPP construction project.

The Deflector is a metal cylinder made of stainless steel, which weighs 215 tonnes and has a diameter of about 25.5 meters. Installation of the PHRS Deflector takes place in two stages and is a complex job. The maximum allowable deviation during the installation of heavy steel structures weighing 135 and 80 tonnes on the spherical surface of the reactor building dome is 10 mm. The inner and outer parts of the deflector were installed in the design position at an elevation of +64.5 meters. Now the reactor building is 74.85 meters high.

The Business Standard Google News Keep updated, follow The Business Standard's Google news channel

Two lead geodetic engineers, a team of five highly qualified welders, and 42 installers of steel structures were engaged in the works.

The PHRS deflector is an aerodynamic structure designed to augment thrust in the ventilation channel and to increase the efficiency of the ventilation system. Operation of the entire system is based on natural circulation rules: the atmospheric air comes into heat exchangers, is heated up, then rises through air ducts to the outlet header located on top of the dome and returns to the atmosphere, thus cooling down the reactor compartment.

Rooppur NPP has two units of Generation 3+ VVER-1200 reactors with a total capacity of 2,400MWe and is being constructed under the Russian design that fully complies with all the international safety requirements. The life cycle of the reactors is 60 years with the possibility of extension of the service life for another 20 years. The project is implemented by the Rosatom Engineering Division.

Bangladesh / Top News

Rooppur Nuclear Power Plant / Bangladesh energy sector

Comments

While most comments will be posted if they are on-topic and not abusive, moderation decisions are subjective. Published comments are readers’ own views and The Business Standard does not endorse any of the readers’ comments.

Top Stories

  • Photo: CA Press Wing
    Stronger stance needed on maintaining law and order: Political parties to CA
  • Volunteers collect and gather parts of the wrecked plane from the Milestone School and College grounds on Tuesday, a day after the devastating aircraft crash. Photo: Mehedi Hasan/TBS
    Grief, angst and anger: The unbearable toll of Milestone crash
  • Photo: Syed Zakir Hossain/TBS
    Secretariat protest: 75 injured in police-protester clash over edu adviser's resignation for delaying HSC rescheduling

MOST VIEWED

  • Screengrab/Video collected from Facebook
    CCTV footage shows how Air Force jet nosedived after technical malfunction
  • ISPR clarifies crashed plane was battle aircraft, not training jet
    ISPR clarifies crashed plane was battle aircraft, not training jet
  • The jet plane charred after crash on 21 July at the Milestone school premises. Photo: Mehedi Hasan/TBS
    Milestone plane crash: Death toll rises to 31 as nine more succumb to injuries
  • Students and police clash at Milestone School and College on 22 July 2025. Photo: TBS
    Protesting Milestone students clash with police, besiege law and education advisers
  • Photo: Syed Zakir Hossain/TBS
    Secretariat protest: 75 injured in police-protester clash over edu adviser's resignation for delaying HSC rescheduling
  • Aerial view of the Milestone school premises where the crash took place on 21 July. Photo: Olid Ebna Shah/ TBS
    ‘Why here?’: Concerns expressed over airbase inside city

Related News

  • Loan tenure for Rooppur plant extended 
  • First unit of Rooppur Nuclear Power Plant likely to be launched by end of this year: Russian ambassador
  • Rooppur Nuclear Power to join national grid by December: Adviser Asif
  • 18 engineers of Rooppur Nuclear Power Plant dismissed following week-long unrest
  • PDB to sign power purchase deal with Rooppur nuclear plant 

Features

Photo: Mehedi Hasan/TBS

Aggrieved nation left with questions as citizens rally to help at burn institute

9h | Panorama
Photo: TBS

Mourning turns into outrage as Milestone students seek truth and justice

3h | Panorama
Illustration: TBS

Uttara, Jatrabari, Savar and more: The killing fields that ran red with July martyrs’ blood

1d | Panorama
Despite all the adversities, girls from the hill districts are consistently pushing the boundaries to earn repute and make the nation proud. Photos: TBS

Ghagra: Where dreams rise from dust for Bangladesh women's football

2d | Panorama

More Videos from TBS

What information did the director of the NBPSI give about the admitted patients?

What information did the director of the NBPSI give about the admitted patients?

2h | TBS Today
What is discussed at the Chief Advisor's meeting?

What is discussed at the Chief Advisor's meeting?

2h | TBS Today
Two advisors and press secretary were blocked at Milestone for 8 hours

Two advisors and press secretary were blocked at Milestone for 8 hours

2h | TBS Today
Chief advisor's meeting with 4 parties; what was discussed?

Chief advisor's meeting with 4 parties; what was discussed?

3h | TBS Today
EMAIL US
contact@tbsnews.net
FOLLOW US
WHATSAPP
+880 1847416158
The Business Standard
  • About Us
  • Contact us
  • Sitemap
  • Advertisement
  • Privacy Policy
  • Comment Policy
Copyright © 2025
The Business Standard All rights reserved
Technical Partner: RSI Lab

Contact Us

The Business Standard

Main Office -4/A, Eskaton Garden, Dhaka- 1000

Phone: +8801847 416158 - 59

Send Opinion articles to - oped.tbs@gmail.com

For advertisement- sales@tbsnews.net