10
CASE STUDY
Nuclear
SELLAFIELD
Magnox East River
Heater Refurbishment
Our Spec
Heat exchangers
designed to specific
requirements
Compromising copper
tubes in each section
Mechanically jointed
tubes into heavy duty
steel headers
Background
Sellafield Ltd (Cumbria) is the company responsible
for safely delivering decommissioning, reprocessing
and nuclear waste management activities on behalf
of the Nuclear Decommissioning Authority.
Project
Sellafield Ltd required a solution to replace the existing coils
for the Magnox East River Heater. The solution would need
to take into account the specific requirements of the project
(the temperatures and air supply) into the planning stages.
Solution
Turnbull & Scott visited the site to measure the existing coils
and to ensure that the required design airflows and
temperatures were achievable. The design was revised to
include heat recovery coils and new structural steel support
framework. Turnbull & Scott designed heat exchangers to
suit engineers’ needs to ensure fit and function.
The heat exchangers were designed to incorporate the
original requirements of the project, such as:

Raise 50m3/hr air from -4°c to 18°c using steam at 1.9
bar

Heat recovery coils designed to cool 0.512kg/sec
condensate to 30°c using air at 14.3°c
As a project, the Magnox East River Heater was additionally
challenging due to its specific requirements.

The heat exchangers were designed to be
manufactured in eight sections to allow for ease of
handling during on site installation

Each section compromises copper tubes with copper
fins (electro tinned after manufacture)
Unit 1a, Burnfoot Industrial Estate, Hawick TD9 8SL www.turnbull-scott.co.uk
HEAT: GENERATION, TRANSFER & RECOVERY
10

CASE STUDY
Nuclear
The tubes are mechanically jointed into heavy duty
steel headers via the Turnbull & Scott patented “Taper
Ferrule” method
 As no brazed joints are employed, this reduces the risk
of failure due to frost damage
Finally, when the structure was complete it was transported
for delivery to the site in Cumbria where Turnbull & Scott
crews installed the exchangers, commissioning work in a
matter of days.
Benefit to the client
The bespoke heat exchanger solution offered a reliable and
robust product which was designed and built to the specification
of the client. Full installation services were offered and carried
out by our very own skilled engineers. With over 80 years
experience in the generation, transfer and recovery of heat,
Turnbull & Scott ensured the project was delivered on time and
on budget.
Heat Exchangers from Turnbull & Scott
Turnbull & Scott manufacture and install a range of high end,
heavy duty, reliable heating or cooling batteries and coils to
efficiently transfer heat between a variety of liquids and gasses.
The robust nature of our products makes them particularly
suitable for harsh environments or inaccessible locations where
an extended plant life and minimal maintenance is essential.
As a result Turnbull & Scott have supplied products to many
extreme environments including oil platforms in the Bering Sea,
food processing in Russia, UK Nuclear power plants as well as
this project with Sellafield.
 Manufactured off site
 Installation service
available
 Robust, high quality
materials
 ISO accredited
company
 80 years experience
 Suitable with steam,
water and thermal
fluids
Unit 1a, Burnfoot Industrial Estate, Hawick TD9 8SL www.turnbull-scott.co.uk
HEAT: GENERATION, TRANSFER & RECOVERY