EMbaffle presentation - NLAHX(june2007).pdf
description
Transcript of EMbaffle presentation - NLAHX(june2007).pdf
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
EMbaffle® TechnologyNLAHX, The Hague, June 29, 2007
By Stuart Oakley, Eric van der Zijden
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
Introduction to EMbaffle® Technology
� A Shell developed technology initially for shell & tube heat exchangers
to reduce fouling mechanisms
� Tubes supported by expanded metal baffles
� The fluid flows parallel to the tubes, through the grid openings
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
Characteristics of EMbaffle® Technology
All heat exchangers
� Uniform longitudinal flow shell-side
� 3-Dimensional shape of expanded
metal enhances the heat transfer
� Countercurrent flow
� Increased heat transfer (OHTC)
� Available in commercially available
software (HTRI)
� Utilises TEMA tolerances and applicable recommendations
� Physically identical to segmental Shell&Tube heat exchanger, no
pressure part modification
Fouling services
� No stagnant zones, no (solid) fouling build-up
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
Expanded Metal & Material Options
Expanded metal
� Widely applied (low end applications)
� Easy to produce with excellent dimensional repeatability
� No waste material during production
� Relatively stiff
� Large variations in dimensions possible
Typical materials available (but not limited):
� Stainless Steel – 304, 316, 321 + more
� Duplex SS (SAF2205), Super Duplex (SAF 2507),
� Copper, Copper Alloys, CuNi, Bronze, Brass
� Aluminum, Titanium
� Hastelloy, Inconel, Incoloy, Monel,
� Carbon Steel
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
EMbaffle® Bundle Cage Under Fabrication
Photo courtesy of Bronswerk Heat Transfer BV
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
EMbaffle® Field Test
Goals of the Field test:
� Fouling reduction
� Show initial high performance
� Replacement bundle (old bundle out /new in)
� Show reliability of the technology
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
EMbaffle® bundle being hydro-jet cleaned
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
EMbaffle® bundle after being hydro-jet cleaned
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
Inspection of the EMbaffle® bundle
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
Results EMbaffle® field test
� Gross Energy saving of EMbaffle HE: 60 TeraJoule per year (113 k€/yr)
� Gross CO2
reduction of EMbaffle HE: 4 kt CO2 per year (86 k€/yr)
� OHTC: Initial: 8% higher than segmental
After 14 months: 36% higher than segmental
� Duty: Initial: same duty (with 18 % less surface area)
After 14 months: 32 % higher duty
� Pressure drop: 20 % lower
� Rate of fouling: Halved
� Optimum operation time without cleaning: Doubled
� Condition assessment after 17 month: no defects
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
EMbaffle® Application Status
Fabrication, Operation:
� 8 EMbaffle® HEX bundles - Refining Crude Units
� 7 EMbaffle® Gas/Gas HEX’s - Exploration Gas Separation Unit
� 2 EMbaffle® HEX - Platformate coolers
� 1 Hybrid EMbaffle® HEX bundle - Chemicals Ovhd Condenser
Under design:
� 8 EMbaffle® HEX bundles - Refining Crude Units
� 1 EMbaffle® HEX - Ovhd Condenser
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.
Contacts
� Stuart Oakley - CEO
� Eric van der Zijden - Senior Project Engineer
� George Anderson - Business Development Manager
EMbaffle B.V.
Coengebouw, 7th Floor, Kabelweg 37,
1014 BA Amsterdam, The Netherlands
Tel. +31 20 586 0020
Fax. +31 20 586 0039
Email: [email protected]
Web: www.EMbaffle.com
Cop
yrig
ht 2
00
7
EMba
ffle
B.V
.