Alfa Laval
Group Presentation
The company
Alfa Laval is a leading
global provider of
specialized products and
engineered solutions.
www.alfalaval.com
Activities
We help customers to
heat, cool, separate
and transport products
such as oil, water,
chemicals, beverages,
foodstuff, starch and
pharmaceuticals.
www.alfalaval.com
We serve most industries
Beverage
Biochemical
Brewery
Chemical
Engineering
Oil and gas
Pharmaceutical
Power generation
Refrigeration
Steelworks
Fish and meat processing
Starch
Food processing
Sugar
Heating and ventilation
Marine
Mining
Vegetable oil
Water and waste water
treatment
www.alfalaval.com
A global company
• 20 Production units*
• 70 Service centres
• Sales companies in 50 countries
• Other sales representation in
45 countries
* Plus a number of minor production and assembling units
www.alfalaval.com
Gustaf de Laval (1845-1913)
“The Man of High Speeds”
•
200 projects and
inventions
•
92 patents, including
the milk separator
(1878) and the steam
turbine (1883)
•
Started 37 companies
www.alfalaval.com
Key technologies
Heat Transfer
Energy saving solutions for
heating, cooling, ventilation,
evaporation and condensation
Products
• Plate heat exchangers
• Purpose built systems
• Tubular heat exchangers
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Key technologies
Separation
Efficient separation of liquids
from liquids, of particles from
liquids and of fluids and solids
from gases
Centrifugal separation products
• Disc stack centrifuges
• Decanter centrifuges
Filtration products
• Membranes
• Filters and strainers
www.alfalaval.com
Key technologies
Fluid handling
Safe transport and control
of fluids
Products
• Pumps
• Valves
• Tank equipment
• Installation material
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Focus on R&D
•
•
•
•
18m / 59.06ft
Constant improvements of existing products
New capacities, materials and functions
New products and technologies
Cooperation with customers and partners
www.alfalaval.com
Focus on customer segments
Marine & Diesel
Comfort & Refrigeration
A ski slope in Dubai’s desert climate has become
a reality. Alfa Laval has supplied glycol coolers
which maintain Ski Dubai’s natural snow at the
right consistency.
Queen Mary 2, the world’s largest
ocean liner, has equipment from
Alfa Laval to clean oil and oily
water and to produce fresh water.
www.alfalaval.com
Thermodynamics
Thermal balance
Q-given = Q-taken
Q-given
=
T2, out
T1, out
m1 . cp1 . (T1 - T2)
T2, in
Surface
Q-taken
Q
m
cp
T1, in
=
=
=
=
m2 . cp2 . (T4 - T3)
capacity [W]
massflow [kg/s]
specific heat [J/kg°C]
given
taken
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Q= k . A . LMTD
Q
= capacity (W)
k
= heat transfer coëfficient (W/m²°C)
A
= heat transfer surface (m²)
LMTD
= Logaritmic Mean Temperature Difference
1
2
1   2
LMTD 
 1 
 
 2 
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Heat Exchangers
A. Gasketed PHE : construction
carrying bar
frame plate
pressure
plate
tightening bolts
plate with gasket
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A. Gasketed PHE : units
Model
Flow max. (kg/s)
Dimensions (cmxcm)
Surface max. (m²)
M6
M10
M15
T20
MX25
M30
T50
16
50
80
180
250
490
975
100x30
110x50
190x65
215x80
290x95
300x120
400x155
38
90
390
425
940
1400
2900
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B. The COMPABLOC
... as a reboiler
Vapour/liquid
mixture
Steam
Liquid
Condensate
Distillation column
Condenser
Reboiler
C. Alfa(e)Vap(orator)
• Plate tailormade for evaporation
• Optimised connections
• Optimised plate pattern
Steam
Condensate
Feed
Vapour
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D. The Spiral Heat Exchanger
... as a reboiler
Vapour/liquid
mixture
Steam
Condensate
Liquid
Steam regulation
Steam heater – liquid level control
TIC
Steam
Steam
trap
Condensate
Process
liquid
Control
valve
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Steam heater – bypass control
Control
valve
TIC
Steam
Steam
trap
Process
liquid
Condensate
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