Waste Heat Recovery Solutions

8/13/2019 Waste Heat Recovery Solutions

1/18

Energy efficien

recovery:Siemens innovati

Good reasons for in

Technical concept a

Siemens portfolio for

References

Scope of supply and

Siemens AG 2012. All Rights Reserved.

Industry Sector

cy thanks to waste heat

ve concept for the glass industry

est in waste heat recovery

d typical system configuration

WHR plants

financing offer


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Good reasons for invest in waste heat recover

Savings Heating in winter and cooling in summer

Increase of productivity

Reduction of energy consumption costs

Fast amortization within a few years

(4 to 6 years based on electricity tariff)

No additional personal required in control room

Safety of investment Less dependency on external sources of energy

Less dependency on constant rising energy costs

Installation without influence on the production process

Installation during line operation possible if bypass is avail

Use of standard components

SIEMENS with strong experience in power plants

Environmental protection Improvement of environmental protection

Prevention of CO2 restrictions

Gain in green image Siemens AG 2012. All Rights Reserved.Industry Sector

y

lable


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Waste heat to electr ical power

Technical concept

Furnace

Waste h

power pl

Waste heat flow. Nm/h


Industry Sector

Glass Plant

at recovery

ant

Electricity supply. KWh


4/18

Working principle of an industrial waste heat r


Industry Sector

ecovery plant

Plant electrical network


5/18

Typical technical concept and scope

Flue Gas FlowWater FlowSteam Flow

Boiler Feed Water

System

Siemens Scop

Superheater

Superheater

Civil

Boiler HP Flue GasCleaning

System

(Natural Gas)

Heating/Cooling Power

Waste Heat Flow

from furnace(s)


Industry Sector

GMVC

abinet

MVC

abinet

MVC

abinet

MVC

abinet

ondenser

LVCabinet

LVCabinet

LVCabinet

LVCabinet

ooling System

e existing

oiler LP ID Fans

(optional)

Chimney

Electrical Power


6/18


7/18

Example of a multi-line concept:

2 glass lines with one turbo generator

Cooling towersCon

2 Boiler trains

glass facilities


Industry Sector

ensor

Turbo generatorand control room


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Example for a conventional float glass furnac

waste heat flow: 80.000 Nm/h

temperature: 450C

electrical power output: 2 MW

Industrial waste heat recovery solut ion

Electrical power output for glass plants

Example for two hollow glass furnaces

(combination of the 2 waste gas flow on 1 boiler, see next slide / 2 lines conc

waste heat flow: 48.000 Nm/h + 60.00

temperature: 400

C

electrical power output: 2 MW


Industry Sector

e:

ept, alternative 3)

Nm/h


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Estimated electrical output depends mainly o

Waste heat f low and furnace exit temperature

0

20000

40000

60000

80000

100000

120000

140000

300 350 400 450 500 550 600 650 700 750 80

T exit furnace (C)

wasteheatflo

w(Nm3/h)

Assumption: minimum T at basis


Industry Sector

850 900

of stack = 180C

0,5 MW

1 MW

1,5 MW

2 MW

2,5 MW

3 MW

3,5 MW

4 MW

4,5 MW

5 MW

Inquiry data sheet for Waste Heat

Recovery in the Glass industry

Feasibility study


10/18

WHR as integrated part of a glass p lant

FurnaceBatch Tin bath

Batch Warm area

Preparing andmixing raw material

Melting process1560oC

Forming process

Utilities

Energy distr

Compresse

WHR

Waste heat recovery

with water steam cycle Siemens AG 2012. All Rights Reserved.

Industry Sector

Annealing lehr Cutt ing l ine

Cold End

CuttingCooling process

ibution,

air, water, ...

Further processing

Bending, grinding, .


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Siemens portfol io for the glass manufacturing

APC: Advanced Process

ControlSPC: Statistical ProcessControl

Batch Furnace Waste

heat

recovery

MES-solution

Plant WideAutomation solution

Local operating /

Monitoring

Automation

Field instrumentation

Drives, Motion

Control

Medium and Low

voltage distribution

incl. MCC

Turbine and

generator system

Process

Appl icat ion


Industry Sector

Forming Cooling Cold end further

processing

Utilities


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Automation archi tecture and energy distributi

Low voand Mo

with

Automation Sys temSIMATIC PCS 7 AS (redundant)

Distributed I/OET 200M

Operating SystemSIMATIC PCS 7 OS Client

Variable speeddrive system

SINAMICS

Measurement:pressure, temperature,

flow, ...

FP

Cooling

tower

T

Water pump,

Condensate pump

electro-pneumaticposition controllers

energ

SITRANS P, -T, -F

Valve control

1LA*


SINAMICS

1LA*


Industry Sector

n

ltage distributionor Control Center

SIVACON 8P*

kW

y distribution

Turbine and generatorautomation sy stem

Steam turbine

Generator

3000 kW

energy distribution

and synchronization

MV/LV


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Automation archi tecture and energy distributi

Loand

Autom ation Syst emSIMATIC PCS 7 AS (redundant)

Distributed I/OET 200M

Operating SystemSIMATIC PCS 7 OS Client


SINAMICS

Measurement:pressure, temperature,

flow, ...

FP

Coolingtower

T

Water pump,Condensate pump

electro-pneumatic

position controllers

e

SITRANS P, -T, -F

Valve control

1LA*


SINAMICS

1LA*


Industry Sector

n

voltage distributionMotor Control Center

with SIVACON 8P*

kW

ergy distribution

Turbine and generatorautomation sy stem

Steam turbine

Generator

3000 kW

energy distributionand synchronization

MV/LV

WHR appli cation fu ll integrated in Simatic PCS 7!


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Modular Equipment

Steam turbine with generator

TWIN-TURBINE

Condensations-system

Live Steam

Extraction

pressure

regulated

HP Turbine

LP Turbine


Industry Sector

Project: Glass Factory Magdeburg

Steam Turbine Type: SST-110

(former TWIN CA 56)

Start-up : 2009

Live Steam Pressure: 40.00 bar

Live steam temperature: 380 - 424CIntermediate Pressure: 1.21 8.00 bar

Exhaust Steam Pressure: 0.20 0.35 bar

Electrical Output: 3170 kWe


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Waste Heat Recovery Boiler


Industry Sector

Total length (L) : Approx. 10mTotal width (W) : Approx. 3,5m

Total Height (H) : Approx. 3,5m


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WHR plants in operation with SIEMENS produ

Germany

Float Glass: Euroglas in Osterweddi

3 MW electrical power

Float Glass: F-Glass in Osterweddin

2.5 MW electrical power

Belarus

Float Glass: Gomel,

3 MW electrical power


Industry Sector

ts

ngen,

gen,


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Waste heat recovery plant with 2.5 MW electri

f|Glass, Germany, Float glass 700 t/day

60 % of electricity produced by furnace


Industry Sector

al power output

aste heat flow !

* CEO Dr. Ing. Wol fgang Rbiger in Glassfocus 2010

*


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Thank you for your attention !

Mail to :

[email protected]

Internet: http://siemens.com/glass-

solar-industry


Industry Sector

Waste Heat Recovery Solutions

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