Jamshoro Power Company Limited (JPCL) is located in Jamshoro, Sindh Pakistan. It has four units with a total capacity of 850MW. Unit 1 was commissioned by Fuji Electric in 1990 and runs on furnace oil. Units 2-4 were installed by Chinese firm Harbin and can run on gas or furnace oil. JPCL has key mechanical components like boilers, steam turbines, condensers, feed pumps, cooling towers, and flue gas stacks. A new 1320MW project is also under construction to increase JPCL's total capacity to 2170MW.

1. U.S-Pakistan Center for Advanced Studies in Water
Mehran University of Engineering & Technology, Jamshoro
By:
Ihsan Ali Wassan
MS (Environmental Engineering)
USPCAS-W Mehran UET, Jamshoro, Sindh Pakistan

2. Contents
• Introduction
• Plant location
• Power plant layout
• Installed capacity
• Mechanical Components of JPCL
• References
2
Figure . 1 Jamshoro Power Plant Company Limited

3. Introduction
• Jamshoro Power Company limited (JPCL) is situated in District Jamshoro, comprises of four
units having total rated capacity of 850MW to the national grid of Pakistan
3
Heat Energy Mechanical Power Electrical power
First unit was
commissioned by
Fuji in Electric
Company, Japan that
only works on
Furnace oil
Other three units
were installed by the
Chinese firm Harbin
Power Electric
Engineering that can
operate on Gas and
Furnace oil
Another new
project is also
under construction
of about 1320MW
(2 units)

4. Plant Location
• JPCL located is situated in District Jamshoro ,Sindh Pakistan
• 5km North-West of Village of Jamshoro on Indus Highway at
the right bank of River Indus Mohra Jabal
• It is about 18km from Hyderabad.
4
Figure . 2 Jamshoro Power Plant Company plant location
Source, Google Map

5. Power Plant Layout 5
Figure . 3 Jamshoro power plant layout

6. Installed capacity
 Power station comprises of 4 units having total capacity 850MW.
6
Unit No. Origin Rated capacity
(MW)
Dependable
Capacity
(MW)
Commissioning
Date
Fuel Type
ST1 Japan 250 194 27-01-1990 Furnace oil
ST2 China 200 130 13-12-1989 Gas + F.O
ST3 China 200 130 27-06-1990 Gas + F.O
ST4 China 200 130 21-01-1991 Gas + F.O
Total 850MW 584MW

7. Mechanical components 7
Boiler
Steam turbine
Condenser
Feed Water Pump
Cooling Tower
FD and ID Fans
Fuel gas stack (chimney)

8. Boiler
• Boiler is major component of steam turbine power plant
• It is also called steam generator
• It is the component which generates the steam from water by
transferring heat of combustion (of fuel) to water
• This plant contains four boilers as it has only four units
• The type of boiler is water tube boiler (water circulates inside
the tubes and furnace is below these tubes)
8
Figure. 4. Showing Boiler fittings

9. 9Boiler
Specifications:
• Type = vertical, balanced draught furnace,
corner fired
• Capacity = 680t/hr
• Max evaporation = 795,600kg/hr
• Steam max temp = 540 ◦C
• Air flow = 583250Nm3/hr
• Fuel = oil, gas and both (dual)
Figure. 5. Showing water in tube type boiler

10. Steam Turbine
• Steam turbine is the heart of a power station
• High T & P steam is provided to the turbine
• Turbine absorbs energy from the steam, its T & P drops toward the outlet
• The rotor blades of steam turbine are having Aerofoil shape for converting maximum amount of
thermal energy of steam into mechanical energy of turbine rotor
Different steam turbines are installed like
a) High Pressure (H.P) Turbine
b) Intermediate Pressure (I.P) Turbine
c) Low Pressure (L.P) Turbine
10

11. • The steam first enters at the inlet of HP Turbine with a T= 540 𝑜C & P=132 kg/cm2
• At the outlet of HP Turbine, the temp. drops to 350 𝑜C
• For increasing efficiency of power plant, more heat added to the steam through Re-Heaters
situated in Boiler
• After Re-heating, the temp. of steam is recovered to the initial position
• Now the reheated steam is sent to the IP Turbine then from IP Turbine, the steam goes to LP
turbine for final turbine processing
• At the outlet of LP Turbine, the T= 50 𝑜C and P= 0.2 kg/cm2
• A condenser is set below the LP Turbine, where the low pressure and low temperature steam is
transferred
• The rotor of Steam Turbine will rotate at a speed of 3000 rpm
11Steam Turbine

12. Steam Turbine 12
Figure . 6(a). showing HP, LP and LP Turbine along with Generator Figure . 6(b). Steam Turbine at JPCL

13. 13
Reheater
HP Turbine
Steam From
Boiler
T= 540 𝑜C
P=132 kg/cm2
T= 350 𝑜C
80kg/cm2
IP Turbine
T= 540 𝑜C
Additional Heat
LP Turbine
T= 50 𝑜C
P=0.2 kg/cm2
Steam Turbine

14. Condenser
• Condenser condenses the steam from the exhaust of the LP turbine into liquid to allow it to be
recycled.
• A surface condenser (shell and tube heat exchanger) in which cooling water is circulated through
the tubes is used at Jamshoro power plant
• The pressure inside the condenser is maintained at 0.2kg/cm2
• The condenser generally uses circulating cooling water from a cooling tower to reject waste
heat to the atmosphere.
14

15. • Condensate is stored in a hot Well from where, it is pumped to the LP (Low Pressure) Heaters
through condensate pump
• 4 LP heaters are used at JPCL to pre-heat the condensate at low pressure than atmospheric
pressure and raise the temperature from 50 ◦C to 150 ◦C
• After pre-heating of condensate at low pressure, it is sent to the Deaerator
• Deaerator is a device used for the removal of oxygen and other dissolved gases from the feed
water to steam-generating boilers
15Condenser

16. Condenser 16
Figure . 7(a) showing Deaerator Figure. 7(b) A surface condenser

17. • Used to provide feed water coming from condenser
into boiler drum at a certain height and required flow
rate
• The plant contains four feed water pumps
• Centrifugal type are installed with power of 3800 kw,
capacity of 485ton/hr and 1485rpm speed
• Cooling system for pump such as lubrication or water
is also available to cool bearings and rotating parts
17Feed Water Pump
Figure . 8. Feed water pump

18. Cooling Tower
• Heat exchangers mainly used to cool the hot water coming from condenser with help of
air and pump
• Water is circulated around the condenser and cooling tower
• Cooling towers contain number of fans that are used to suck air and that air is passed around the
tubes that contain the hot water
• Total 2 cooling towers are used at JPCL
1. Japanese (6 fans)
2. Chinese (12 fans)
18

19. 19
Figure . 9 (a) showing cooling towers JPCL Figure . 9 (b) showing cooling tower mechanism JPCL
Cooling Tower

20. FD and ID Fans
These are electrically operated fans, used to force air (gases)
• FD (Forced draft) fan is used to force incoming air into the boiler to provide more air for
combustion
• ID (Induced Draught) fan draws flue gases from the system out into the atmosphere
• In this power plant unit 1 contains only ID fan and other units contain both ID and FD fans
20

21. 21
Figure . 10 . Showing FD and ID fans
FD and ID Fans

22. Flue Gas Stack (Chimney)
• Flue gases, Nitrogen along with combustion products carbon dioxide, sulphur dioxide, and
nitrogen oxides
• Total 2 Flue Stacks are present at JPCL and each of them are 500 ft. high
• The ID (Induced Draught) fans are used to take the flue gases out from the boiler and up in
the atmosphere through flue stack
22

23. 23
Figure . 11(b) showing flue gas stack at JPCLFigure . 11(a) showing stack effect at JPCL
Flue Gas Stack (Chimney)

24. Conclusion
• Jamshoro Power Company limited produce 850MW electricity having total rated capacity of
850MW to the national grid of Pakistan .
• By the completion of 1350Mw coal power plants, Jamshoro power plant will be able to
produce 2170MW at the end of 2019.
• In Feb 2014 project funding was approved but project is facing delay because of the slow
construction at site.
24

25. 25

26. References
• JPCL Jamshoro, Winter internship report Dec16-Jan17 (2018) submitted by Meer Muhammad.
• http://www.slideshare.net/mobile/Umes_ali/internship-report-at-jpcl
• Jamshoro Power Company Limited by Aamir Ali Seelro
• http://www.slideshare.net/mobile/KabeerAhmedSeelro/internship-report-of-jpcl-by-15ch31
26