kuettner heat recovery

8/3/2019 Kuettner Heat Recovery

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HEAT RECOVERY

from industrial processes

Use of waste heat

Savings in primary energy

Environmental protection

Cost reduction


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The worlds largest energysource is waste gas from indu-strial processes.

Determined exploitation of this up to now lostenergy can save valuable primary energy anddramatically prolong the availability of theearths energy resources.

The use of residual heat makes a two-fold contri-bution to environmental protection: It not onlysaves energy but is also free of emissions

existing plants, the modular design and the longservice life of the components make for lowinvestment and operating costs. A large numberof the systems installed have paid back in lessthan two years.

KTTNER systems also generate power fromwaste heat. The cogeneration technology, whichproduces power from industrial waste gas bymeans of steam turbines, is a profitable optionalready in the 2 to 20 MW power range.

Also power generation from waste heat from

USE OF RESIDUAL HEAT IS PRACTICAL

ENVIRONMENTAL PROTECTION

VebaMnchsmnster

Waste gas from

dustrial furna-

es is an econo-

ic method to

atisfy the energy

emand of other

lant units.


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HEAT RECOVERY SAVES

PRIMARY ENERGY

In multiple industries

Construction materials

Chemistry

Foundries

Glass industryFood industry

Dairies

Oil mills

Pulp and paper

Refineries

Steel works

Cement works

Sugar industry

In heat recovery applications

Cupola furnaces

Electric crucible furnaces

Induction furnaces

Tunnel furnaces

Copper melting furnaces

Coal defrosting facilities

Boiler plants

Dryers

Kilns

Power plants

Cogeneration plants

In heat removal applications

Cooling towers

Cooling plants

Dry cooling systems

Wet cooling systems

Air-cooled water recooling plants

ilkingtonalmstad

he modular

esign of the heat

xchanger facilita-s assembly and

aintenance

ttenwerkerupp -

Mannesmann

eat recovery at

e blast furnace


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ECOFLOW:

HEAT AT ZERO COST

Already about 35 years ago KTTNER developed theECOFLOW heat shunting and distribution system for theeconomic use of recovered energy. Since then the effi-ciency of the system has been constantly improved.

ECOFLOW distributes the recovered heat at a high tem-perature level to various consumers. If required, it transmitsthe heat over very long distances virtually free of loss.

The heat exchangers for the ECOFLOW system are usual-ly made up of modularly designed heat exchanger ele-ments. This enables convenient retrofitting of the systemeven in existing plants with extremely limited space. Themodular arrangement makes for low invest-ment and maintenance costs andhence high economic effi-ciency. The amount ofenergy recoverablethrough the exergetic useof waste gas can beused extremely efficiently

if it is distributed amongvarious consumers.

Manifold

Hot oil system

Steam

Manifold

Bypass

Air preheating Heating/District heating Feedwater

Using the waste gasheat released by amelting furnacecovers the totalheat demand of afoundry:

Sand drying

Steam generation

Heating

Air conditioning

Hot water production

Waste gas


5/6Blast furnace Hot blast

Hot blast stoveBlast furnace gas

Waste gas

Combustion air

Stack

Combustiongas

The core of many KTTNER systems is theECOSTAT heat exchanger system. It uses heatpipes - the safest method for exchanging the hea-ting or cooling energy of two bypassing media.

Heat pipes work on the principle of isothermalevaporation and condensation of the working

media in the pipe, the wall temperature ofwhich can be objectively varied. This securelyprevents the temperature from falling below thedew point. This feature is of decisive importancewhen recovering heat from waste gas or com-bustion media as it avoids corrosion.

Each individual pipe of the heat pipe exchangerconstitutes a closed circuit complete with an eva-porator and condenser but without any driveunit. The pipes are series-arranged in the directi-on of flow. This ensures optimal operation of

each pipe under the specific temperatu-re/pressure conditions prevailing at its position.

Heat pipes are safe: Mixing of the two mediaflows is prevented under all circumstances.Efficient operation of the system continueseven if some of the pipes fail.

ECOSTAT: EFFICIENCY AND SAFETY

WITH HEAT PIPES

Ecostat uses furna

waste heat to pre

heat combustion

gas and supply a


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Established in 1949 by Dr. Kttner, this engi-

neering company has evolved into a globally

active group of companies supplying turnkey

plants for process, melting and conveying tech-

nology to the metals producing and processing

industries.

The Energy and Thermal Engineering divisi-

on designs, builds and supplies components

and complete plants for the recovery of heat.

The company has references from virtually all

industries.

The service offer comprises the design, con-

struction, delivery, assembly and commissio-

ning of the plants complete with control and

data processing systems.

KTTNER ENERGY GMBH

A subsidiary of Kttner GmbH & Co. KG

6316

[email protected]

www.kuettner.de

Kttner Energy GmbH

Bismarckstr. 67 45128 Essen

Phone +49 (0) 201 7293 310

Fax +49 (0) 201 7293 314

kuettner heat recovery

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