Steam Turbines -Turbotech

7/31/2019 Steam Turbines -Turbotech

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Turbine CogenerationTurbine CogenerationTechnology for EnergyTechnology for Energy

TurboTech Precision Engineering Private LimitedTurboTech Precision Engineering Private Limited


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e ro em

ELECTRICITY COSTS AREELECTRICITY COSTS ARE,,

S UEEZING OPERATINGS UEEZING OPERATING

MARGINSMARGINS

TurboTech Precision Engineering Private Limited28/29 Second Main, Rajajinagar Industrial Town, Bangalore 560 044.


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e o u on

MAKE THE PLANT ASMAKE THE PLANT AS

POSSIBLEPOSSIBLE

PREFERABLY USINGPREFERABLY USING



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Cogeneration: Best Option

or rocess n us r es

power

os s eam users can now ene rom

cogeneration, regardless of sizePromoted by all national and

international agencies involved in

energy efficiency



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e en esource

required pressure Usa e ressure is enerall much lower than

generation pressure due to constraints in

steam generation n a yp ca case g pressure sa ura e

steam is obtained at 16 bar and is used at 3.5bar Saturated for rocess

Steam is let-down in a Pressure ReducingDesuperheting Station (PRDS)from HP


ea er ressure to t e sage ressure


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The Hidden Resource

con

is converted to useless Turbulence &

This Pressure Energy can be convertedo se u ec r ca ower y pass ngthe steam through a Back Pressure

eam ur ne ur ne



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Current Scenario

3.5 kg/cmg Header3.5 kg/cmg Header16 Kg/cmg/Sat16 Kg/cmg/Sat PRDSPRDS

NO POWER GENERATEDNO POWER GENERATED



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3.5 kg/cmg Header3.5 kg/cmg Header16 Kg/cmg/Sat16 Kg/cmg/Sat PRVPRV12 TPH12 TPH

~~300 KWe Generator300 KWe Generator



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ur o ec o u on

Install back pressure steam turbine for incidental powerInstall back pressure steam turbine for incidental power

Steam from 16 k /cm /Saturated is brou ht down to 3.5Steam from 16 k /cm /Saturated is brou ht down to 3.5kg/cmg @ 12 TPH for Processkg/cmg @ 12 TPH for Process

In the process generate Incidental Power of 300 KweIn the process generate Incidental Power of 300 Kwe . .. .cost of power of Rs. 5 per unit)cost of power of Rs. 5 per unit)



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TurboTechSolution



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Operating Principles of a

mp e eam ur ne

converted to high velocity in the nozzle

The high-velocity steam is impinged onh l n h r in wh l whi hare thus given a kick (impulse)

Th turbin wh l r tat th n rat rto produce electricity



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What Happens to the

eam

controlled usage pressure, and then



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Desirable Features for a

rocess eam ur ne

High efficiency for min. payback period

Light-weight and compact for ease of

installation in cramped spacePrecisely controlled back pressure to

lant



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ECT Steam Turbines



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eam ur nes



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The ECT: Precisely

es gne or n us ry

available(Minimizes investment)

es e c ency n s s ze c ass

20% better)Less than 3 tonnes weight and very

compact (W x L x H : 5 x 10 x 6)

Precise Plant Steam Control



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escr p on o,

coupled to Step-Down Gearbox, driving anGenerator

Power Rating: 75 to 500 kW

All steam-wetted parts are Stainless Steel forong corros on- ree e

Turbine is machined from a solid Hardened

any Steam service

Precision CNC milled aerod namic bladin



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escr p on con .

Gears for long-life, low noise and highefficienc

Unitary Skid for all equipment, single compact

unit, factor assembled, ali ned and tested,ready for hook-up to steam and electricalservices at site

No civil work foundations required, as skid ismounted on Anti-Vibration Rubber Mounts



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Description (contd.)



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escr p on con .

,

pressure control within +/- 0.1 kg/cm2

on ro s or max mum ease o use

Redundant in-built safety featuresMulti-sensor Fail-safe trip system

,required



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ay ac e a s

ECT system

Electrical hookup

,

80% Depreciation allowed in First Year

Payback : 9 Months 2 Years



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.300 Kwe Installation

Turbine basic cost 39E.D(16.32%) 6.36

Supervision of Erection 3

Freight 0.2

Expansion Bellows 0.6Turbine Erection 1

Electric Cabling 1

Steam Piping etc. 2

v .

Miscellaneous 1

Less modvat 6.36


.


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ay ac na ys s

. .

No.0f hours per year 7200 hrs.

Savings in power per year 108 Rs.(lakhs)

os o mac ne + ns a a on . s. a s

Payback 6 months



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Why 300 KW ECT Now And

o a er

Rs. 5.0 + cr.

24 months approx.

During this time ECT would generate Rs.1.5 cr.Approx. after paying itself back

ECT could be then used to generate atleast

PRV saving another Rs. 50 lakhs p.a.



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Why Sat. Steam Turbine and

no uper ea e ur ne

superheater in the boiler. Hence Cost SH turbine re uires a desu erheater down

stream as all processes use sat steam.

Involves investment and running cost o er requ res e-m n wa er. ga n

investment and running cost

CONSUMPTION in SH steam boiler ( approx.15-22% increase)



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Comparison of power generation with

Parameters Units Su erheated steam Saturated steam

COST COMPARISION FOR SATURATED V/S SUPERHEATED STEAM

1 Inlet pressure into turbine kg/cm2g 42 422 Inlet temp. into turbine Deg.C 440 sat(238.3)

. .

4 Inlet enthalpy of steam KJ/kg 3305 2800

kcal/kg 789.5365504 668.8963211

5 Enthalpy of feed water kcal/kg 50 50ea a e n o er ca g . .

7 Fuel used bagasse

8 Calorific value of fuel kcal/kg 2200 2200

9 Efficiency of boiler % 68 68

10 Nett energy required in boiler kcal/kg 1087.553751 910.141648611 Amount of steam generated from a kg of fuel kg 2.022888523 2.41720616

12 Cost of fuel per kg Rs./ton 1000 1000

Rs./k 1 1



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Comparison of power generation with

13 Cost of steam Rs./kg 0.494342614 0.413700749

14 Water treatment costs Rs./kg 0.2 0.1

15 Total steam cost Rs./kg 0.694342614 0.55837038

16 Exhaust Enthalpy of steam KJ/kg 2972

kcal/kg 709.985666517 Amount of heat lost in desuperheating kcal/kg 41.08934544

18 Total heat in desuperheating kcal 410893.4544

19 Nett steam generated in desuperheating kg./hr 614.2857143

20 Boiler capacity TPH 10 10

21 Nett steam generated TPH 10.61428571 9.2

23 Loss of steam generation 0.8

24 Amount of fuel required for amount of steam prod kg./hr 4943.426139 4137.007494

25 Amount of steam per unit of power kg/kw-hr 12.48739496 15.20661157

. . .

27 Power generated KW 850 60528 Cost of power Rs./unit 1.599673343 0.738340998

29 Extra Power due to superheated steam KW 245


ost o xtra ower ue to super eate steam s. un t .


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c now e gemen

nation-wide and 20 more in execution.

encouragement and support of our.



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onc us on

exciting opportunities for energy cost.

TurboTech is committed to servicing theneeds of the Industry, with innovative

and cost-effective products.


Date post:	04-Apr-2018
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Steam Turbines -Turbotech

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