Large Gasket Free Heat Exchangers -

Savings and Considerations

April 28, 2015

Pär Björkman, SWEP International AB

Segment Manager District Energy

23 46 70 100 118 150192

246302

492

B50 B427 B439 B439 B633 B649 B649 B649 B649 2XB649

1 2 3 4 5 6 8 10 12 20

m2

Development and current reach

Header Stations Pressure BreakersGlycol Breakers /

Intermidiary HEX District Cooling

M

W

LMTD 5K

120/90 85/115

From Small to XXL

E5TDimensions:

72 x 187 mm

2.84 x 7.45 in

E8TDimensions:

73 x 315 mm

2.84 x 7.45 in

B10TDimensions:

117/119 x 287/289

mm, 4.61/4.68 x

11.31/11.37 in

B12Dimensions:

117 x 287 mm

4.61 x 11.31 in

B15Dimensions:

72 x 465 mm

2.84 x 18.32 in

B16Dimensions:

119 x 376 mm

4.69 x 14.8 in

B25TDimensions:

117/119 x 524/526

mm

4.61/4.68 x

20.65/20.71 in

B28Dimensions:

119 x 526 mm

4.69 x 20.72 in

B35Dimensions:

243 x 393 mm

9.57 x 15.48 in

B56Dimensions:

243 x 525 mm

9.57 x 20.69 in

B57Dimensions:

243 x 693 mm

9.57 x 27.30 in

B60Dimensions:

364 x 374 mm

14.34 x 14.74 in

B120TDimensions:

243 x 525 mm

9.50 x 20.65 in

B427Dimensions:

304 x 694 mm

11.97 x 27.32 in

B80Dimensions:

119 x 526 mm

4.69 x 20.72 in

B649Dimensions:

1232 mm x 537 mm

48.5 x 21.14

B439Dimensions:

304 X 979 mm

38.57 x 11.98 in

B50Dimensions:

243 x 525 mm

9.50 x 20.65 in

B633Dimensions:

830 X 537 mm

32.68 x 21.14 in

Gasket Free BPHE vs PHEBPHE advantage

Size - Large BPHE Units occupies less than half the footprint of corresponding PHEs.- A PHE weights at least twice as much

Operational reliability

- Elimination of gaskets ensures unparalleled up-time and maintenance costs. - Fixed plate package means stable performance

Maintenance need and LCC

No gaskets or studbolt mean no maintanance for tightening plate package or servicing gaskets

Every unit is factory assembled and helium tested

At least 50% reduced weight and footprint

Installation in China, corresponding units

Savings compared PHE

0

1

2

3

4

5

6

7

8

9

60 80 100 120 140 160

5 bar 10 bar 15 bar 20 bar

Temp

Years

• District Heating PHE 1800 kW

• Price for exchange of gaskets:

€ 7500 (Pending)

• District Heating BPHE 1800 kW

• Price for a new BPHE: €5800

MODULAR CONCEPTS OFFERINGS WITH BPHE

Redundancy

• N + 1 is simply one more module rather than an additional

separate PHE

• Saves space, investment cost and less risk of total failures

B649 makes increased redundancy possible to a lower cost and footoprint!

Example 540 TR

• Traditional Design:

– 540+540 = 1080 TR

– If one unit fails: 540 TR is available

– If 2 units fail: System down!

• N+1 Design:

– 270+270+270 = 810 TR

– If 1 unit fails: 540 TR is available

– If 2 units fails: 270 TR available

Capacity extension to 3000 kW – B65Lx196 to B65Lx218

In an ideal world...

In some markets..

CIP Cleaning of BPHE

No suitable valves:- Dismounted- Cleaned

CIP Cleaning Results

B16x50

B56x100

Stadtwerke Dresden GmbH

• 5xB649 a 9 MW + 1xB649

a 4 MW, PN25

• „The main advantage of a

BPHE is the compact

design..

13MW - Installation

1200 kW RIVER FREE COOLING – B649Mx350

QUICK INSTALLATION THROUGH STANDARD DOORS

STANDARD HAND TRUCK INSTALLATIONS

Gothenburg Opera

Lomma Harbour

Globen

Stockholm

SWEP BPHEs are used in all capacity ranges covering small flat stations to substations to large DC installations

Hammarby Sjöstad

Stockholm

Eriksberg

Göteborg

Ekparken, Lidingö

StockholmKista, Stockholm

People’s Hall of China, Beijing:

- District Heating installation since late

90’s

- 6 BPHEs connected in parallell

supplying spce heating to the building

complex

Genyuan International Center, China

• The Genyuan International Center is

situated in east China.

• SWEP's BPHEs are used for:

– Centralized heating & tap water

– District Cooling

– Free cooling

– Pressure breaker

Karolinska Hospital, Stockholm

• The design and construction of Nya Karolinska

Sjukhuset (NKS) started 2010 and the first

phases were equipped with the traditional

Gasketed Plate Heat Exchanger (PHEs)

• Operational dependability and low Life Cycle cost

was a determining factor to go for BPHEs

• In phase 4 & 5 at total of 150 SWEP BPHEs have

been supplied so far.

Thank You!