1 Power Plant Design for Sagay, Camiguin ACKNOWLEDGEMENT First of all, we would like to say thank you for giving us the
Views 301 Downloads 85 File size 1MB
1 Power Plant Design for Sagay, Camiguin ACKNOWLEDGEMENT
First of all, we would like to say thank you for giving us the strength and health to
do this project work until it done not forgotten to my our family for providing everything
such as money to buy anything that are related to this work and their advised, which is
the most needed for this project. Internet, books, computers and all that as my source to
complete this project they also supported us and encouraged us to complete this task
so that we will not procrastinate in doing it. Then we would like to thank our professor
for guiding us and our friends throughout this project. We had some difficulties in doing
this task, but he taught us patiently until we knew what to do, he tried and tried to teach
us until we understand what we supposed to do with the project work. Last but not the
least, our friends who were doing this project with us and sharing our ideas they were
helpful that when we combined and discussed together we had this task done.
Power Plant Design / MEP544D2
2 Power Plant Design for Sagay, Camiguin
INTRODUCTION
In a diesel power station, diesel engine is used as the prime mover. The diesel burns
inside the engine and the products of this combustion act as the working fluid to
produce mechanical energy. The diesel engine drives alternator which converts
mechanical energy into electrical energy. As the generation cost is considerable due to
high price of diesel, therefore, such power stations are only used to produce small
power.
Although steam power stations and hydro-electric plants are invariably used to generate
bulk power at cheaper costs, yet diesel power stations are finding favour at places
where demand of power is less, sufficient quantity of coal and water is not available and
the transportation facilities are inadequate. This plants are also standby sets for
continuity of supply to important points such as hospitals, radio stations, cinema houses
and telephone exchanges. Power Plant Design / MEP544D2
3 Power Plant Design for Sagay, Camiguin
The diesel engine is recognized as the most promising powertrain in the foreseeable
future due to its superior thermal efficiency and reliability. The diesel engine has been widely used in commercial vehicles, industrial applications and today’s passenger cars
and light-duty trucks.
A diesel engine is a type of compression-ignition engine using diesel fuel. Diesel
engines can be classified into various categories. Understanding the differences and the
unique characteristics of each category of diesel engines is important for diesel engine
system design.
HISTORY The first man, who had invented the engine with ignition from compression, was E. Steward. He was interested in engines, what can work without spark plugs. In Steward’s
engine the air was compressed and compressed air was blown into the combustion
Power Plant Design / MEP544D2
4 Power Plant Design for Sagay, Camiguin chamber. Unfortunately, Steward had not come into mind to test the efficiency of that
type of engines.
Developing the concept of “economy-type heat-engine”, Rudolph Diesel in 1890
invented the engine much more efficient due to high compression ratio. In his book he suggested to use the powdered coal, but it was difficult in real life – the coal dust has an
abrasive properties and it should be found the way to put it somehow in combustion
chamber. So it was suggested to use the tailing that remains after oil refining in such
engines. So in 1897 Diesel had patented the engine design, later named Diesel engine.
Rudolf Diesel was born in Paris in 1858. His parents were Bavarian immigrants. Rudolf
Diesel was educated at Munich Polytechnic. After graduation he was employed as a
refrigerator engineer. However, he true love lay in engine design. Rudolf Diesel
designed many heat engines, including a solar-powered air engine. In 1893, he
published a paper describing an engine with combustion within a cylinder, the internal
Power Plant Design / MEP544D2
5 Power Plant Design for Sagay, Camiguin combustion engine. In 1894, he filed for a patent for his new invention, dubbed the
diesel engine. Rudolf Diesel was almost killed by his engine when it exploded. However,
his engine was the first that proved that fuel could be ignited without a spark. He
operated his first successful engine in 1897.
POWER PLANT DESIGN FOR SAGAY Diesel Power Plant for Sagay, Camiguin produces power in the range of 6.4 MW.
And they are used standby sets for continuity of supply such as hospitals, cinema
theatres and industries.
ADVANTAGES OF A DIESEL ENGINE More efficient and economical to use. Fuel vapor is not explosive. Exhaust gases are less poisonous – less carbon monoxide. Greater lugging power and torque. Power Plant Design / MEP544D2
6 Power Plant Design for Sagay, Camiguin Engines are durable and if properly cared for will maintain their economy. Fuel is less volatile – no vapor lock problems Can use a variety of fuels and mixtures.
DISADVANTAGES OF DIESEL ENGINE The fuel in diesel engine is ignited by the heat of the compressed air. HPFP of diesel engine is extremely unreliable unit. The exhaust filter is warming up in the flow of exhaust gas. it is expensive Noise and vibration till the latest times could not be separated from the words “Diesel engine”.
Power Plant Design / MEP544D2
7 Power Plant Design for Sagay, Camiguin
ADVANTAGES OF DIESEL POWER PLANT The design and layout of the plant are quite simple. It occupies less space as the number and size of the auxiliaries is small. It can be located at any place. It can be started quickly and it can pickup load in a short time. There are no standby losses.
DISADVANTAGES OF DIESEL POWER PLANT The plant has high running charges as the fuel (diesel) used is costly. The plant doesn’t work satisfactorily under overload conditions for a longer
period. The plant can only generate small power. The cost of lubrication is generally high. The maintenances charges are generally high.
Power Plant Design / MEP544D2
8 Power Plant Design for Sagay, Camiguin
WHY WE CHOOSE DIESEL POWER PLANT
Purpose
Diesel power plants produce energy though the combustion of chemical fuel, in
most cases diesel derived from petroleum, into mechanical energy. This energy
is then used to power an alternator which in turn generates electricity. Diesel is
preferred to other fuel types as these engines have a higher thermal efficiency
than other commercial generators of equivalent size.
Process
Most modern generators harness mechanical energy through the process of
electromagnetic induction. In this system, the mechanical energy produced by
the diesel engine moves an electrical conductor, such as a magnetically charged
wire, in a magnetic field. The movement of the conductor creates a difference in
voltage between the two ends of the charged wire, creating a flow of electric
charges and thereby generating electricity.
Power Plant Design / MEP544D2
9 Power Plant Design for Sagay, Camiguin
LAYOUT OF DEISEL POWER PLANT
Power Plant Design / MEP544D2
10 Power Plant Design for Sagay, Camiguin
ESSENTIAL ELEMENTS OF DIESEL POWER PLANT
I.
DIESEL ENGINE
Diesel engine is a compressor ignition (CI) engine. The two – stroke cycle engine is more favored for diesel power plants. The air required for the diesel engine is drawn through the air filter form the
atmosphere and compressed inside the cylinder. The fuel (diesel) from the diesel engine is drawn though a filter from the all-day
tank and injected into the cylinder through fuel injector. Because of the high temperature and pressure of the compressed air, the fuel
burns and the burn gases expand to do work on the moving part inside the
cylinder called piston. This movement of the piston rotates a flywheel and the engine is directly couple
to electric generator. The gases after expansion inside the cylinder are exhaust into the atmosphere
and passes through a silencer in order to reduce the noise.
Power Plant Design / MEP544D2
11 Power Plant Design for Sagay, Camiguin
II.
STARTING SYSTEM
The starting motor will crank the engine. The starting motor will spin the engine at a high enough rpm to allow the engine’s compression to ignite the fuel and start
the engine running. The engine will then accelerate to idle speed. When the starter motor is
overdriven by the running motor it will disengage the flywheel.
III.
FUEL SUPPLY SYSTEM
It consists of storage tank, strainers, fuel transfer pump and all day fuel tank. The
fuel oil is supplied at the plant site by rail or road. The oil is stored in the storage
tank. From the storage tank, oil is pumped to smaller all day tank at daily or short
intervals. From this tank, fuel oil is passed through strainers to remove
suspended impurities. The clean oil is injected into the engine by fuel injection
pump.
Power Plant Design / MEP544D2
12 Power Plant Design for Sagay, Camiguin
IV.
AIR INTAKE SYSTEM
This system supplies necessary air to the engine for fuel combustion. It consists
of pipes for the supply of fresh air to the engine manifold. Filters are provided to
remove dust particles from air which may act as abrasive in the engine cylinder.
V.
EXHAUST SYSTEM
This system leads the engine exhaust gas outside the building and discharges it
into atmosphere. A silencer is usually incorporated in the system to reduce the
noise level.
VI.
COOLING SYSTEM
The temperature of the burning fuel inside the engine cylinder is in the order of 15000 0C to 20000 0C. In order to lower this temperature water is circulated
around the engine.
Power Plant Design / MEP544D2
13 Power Plant Design for Sagay, Camiguin The water envelopes (water jacket) the engine. The heat from the cylinder,
piston, combustion chamber etc., is carried by the circulating water. The hot water leaving the jacket is passed through the heat exchanger. The heat from the heat exchanger is carried away by the raw water circulated
through the heat exchanger and is cooled in the cooling tower.
VII.
LUBRICATING SYSTEM
The system minimises the wear of rubbing surfaces of the engine. It comprises of
lubricating oil tank, pump, filter and oil cooler. The lubrication oil is drawn from
the lubricating oil tank by the pump and is passed through filter to remove
impurities.
Power Plant Design / MEP544D2
14 Power Plant Design for Sagay, Camiguin LOCATION MAP
Power Plant Design / MEP544D2
15 Power Plant Design for Sagay, Camiguin
LOCATION
Sagay, Camiguin
Sagay is a Philippine municipality. It is located in the province Camiguin in Region
X Northern Mindanao which is a part of the Mindanao group of islands. The municipality
Sagay is seated about 16 km south of province capital Mambajao and about 732 km
south-south-east of Philippine main capital Manila. The geographic coordinates of
Sagay are 9° 6' 21'' N, 124° 43' 29'' E.
Administratively the Municipality of Sagay is subdivided into 9 barangays. One forms
the center of the city wheras the other 8 are in the outlying areas. Some of them are
even several kilometers away from the center of the Municipality.
According to the 2007 census, Sagay has a population of 11,198 residents and is part
of the big group of 1073 cities and municipalities in the Philippines which have more
than 10.000 residents but did not reach 50.000 population yet. Based on the number of
its inhabitants Sagay is number 1483 of the most populous cities of the Philippines and
Power Plant Design / MEP544D2
16 Power Plant Design for Sagay, Camiguin at 424 in Mindanao group of islands and at 4 of the most populous cities of province
Camiguin. With an area of 44.13 km² Sagay occupies a relatively small urban area.
Accordingly, there is a high population density. In Sagay, by average, 253.75 people
live in one square kilometer. With this value, Sagay is only number 105 in Mindanao
and is nationally ranked 728th of the most densely populated cities in the Philippines.
According to the Philippine income classification for provinces, cities and municipalities
Sagay is a 5th class municipality. The urbanization status of Sagay is classified as
partly urban.
Among the bigger cities and municipalities in the neighborhood of Sagay there
areCagayan De Oro City (Misamis Oriental) 69 km south, Gingoog City (Misamis
Oriental) 55 km south-east, Manolo Fortich (Bukidnon) 83 km south, City Of
Cabadbaran (Agusan Del Norte) 88 km east, Butuan City (Agusan Del Norte) 90 km
east, Balingasag (Misamis Oriental) 40 km south, Tagoloan (Misamis Oriental) 63 km
Power Plant Design / MEP544D2
17 Power Plant Design for Sagay, Camiguin south, Buenavista (Agusan Del Norte) 76 km east, Talakag (Bukidnon) 98 km south as
well as 50 km south of Sagay the municipality Jasaan (Misamis Oriental).
Municipalities
Total Population
Camiguin
74,232
100
37,847
Catarman
15,368
20.7
7,864 7,522
Guinsiliban
5,092
Mahinog
12,592
17.0
6,368 6,224
Mambajao (Capital) 30,806
41.5
15,657
Sagay
14.0
5,338 5,018
10,356
Percentage Male Female
6.9
36,385
2,620 2,472
15,149
Guinsiliban is 6.9% of total population of Camiguin therefore we can assume that out of
14,735 Occupied Housing Unit there are 1002 single houses which represents the
majority of the building structure on Guinsiliban and a household population of 1023.
Power Plant Design / MEP544D2
18 Power Plant Design for Sagay, Camiguin Demographic Data:
Total No. of Population: 5,092
Household Population: 1023
Structures:
Group A
Group B
Single House: 1002
Multi- Unit Residential: 3
Duplex: 6
Commercial/Industrial/Agricultural: 1
Power Plant Design / MEP544D2
19 Power Plant Design for Sagay, Camiguin GROUP A
GROUP B
Power Plant Design / MEP544D2
20 Power Plant Design for Sagay, Camiguin Total Power Consumption Table
Time
GROUP A
No. of Consumer
Power Consumption
GROUP B
No. of Consumer
Power Consumption
Total Load (whr)
1
1632960
2016
810
16000
8
2000
1648960
2
1632960
2016
810
24000
8
3000
1648960
3
1632960
2016
810
24000
8
3000
1648960
4
2237760
2016
1110
16000
8
2000
2253760
5
2136960
2016
1060
24000
8
3000
2160960
6
2136960
2016
1060
91200
8
11400
2228160
7
1532160
2016
760
94000
8
11750
1626160
8
2056320
2016
1020
102000
8
12750
2158320
9
2056320
2016
1020
110000
8
13750
2166320
10
2378880
2016
1180
32000
8
4000
2419880
11
1854720
2016
920
28000
8
3500
1882720
12
1854720
2016
920
61200
8
7650
1915920
13
1854720
2016
920
48000
8
6000
1902720
14
1310400
2016
650
16000
8
2000
1326400
15
1310400
2016
650
24000
8
3000
1334400
16
1310400
2016
650
29200
8
3650
1339600
17
1532160
2016
760
29200
8
3650
1561360
18
2136960
2016
1060
37200
8
4650
2174160
19
4354560
2016
2160
53200
8
6650
4407760
20
4677120
2016
2320
37200
8
4650
4714320
21
2459520
2016
1220
53200
8
6650
2512720
22
2459520
2016
1220
37200
8
4650
2496720
23
1632960
2016
810
64000
8
8000
1696960
24
1632960
2016
810
32000
8
4000
1664960
Total Load (w-hr / 24hrs.)
49815360 w-hr
1082800 w-hr Total Load (w-hr / 24hrs.)
50898160 w-hr
Power Plant Design / MEP544D2
21 Power Plant Design for Sagay, Camiguin Design Overview
Peak Load = 2357.16 kW, 2.35mW
Plant Capacity: 3200 kW, 3.2mW
No. of Engines: 5
Engine Capacity
Number of Hours of Operation/day
Unit 1 --- 800 kW
18hours/day
Unit 2 --- 800 kW
18hours/day
Unit 3 --- 800 kW
18hours/day
Unit 4 --- 800 kW
18hours/day
Unit 5 --- 800 kW
Reserve
Schedule of Engine Operation
Time of Operation
Engine Operating
Time Interval
12AM-6AM
Unit 1,2 and 3
6 hours Power Plant Design / MEP544D2
22 Power Plant Design for Sagay, Camiguin 6AM-12NN
Unit 2,3 and 4
6 hours
12NN-6PM
Unit 1,4 and 2
6 hours
6PM-12AM
Unit 3,4 and 1
6 hours
Each Unit has a 6 straight hours break
DESIGN FOR MACHINE FOUNDATION
For 800 kW Generator Set (Per Unit 1,2,3,4 and 5)
Mixture for Concrete Foundation: Power Plant Design / MEP544D2
23 Power Plant Design for Sagay, Camiguin Use 1:3:5 concrete mixture ratio (from PPE by F.T. Morse, Table 4-1 p.90)
Soil Bearing Pressure:
Use 50-98 tones / m2 for common brick masonry
(from PPE by F.T. Morse, Table 4-4 p. 105)
Soil Bearing Pressure (Sb) =
= 50,000 kg/m2
Weight of Foundation
Wf = e x W e x √
Where:
Wf = weight of the foundation, kgs
We = weight of the engine, kgs
N = engine speed, RPM
Use e = 0.11 (from PSME code, Table 2.4.2.3 (4), p.11)
Power Plant Design / MEP544D2
24 Power Plant Design for Sagay, Camiguin Wf = 0.11 x 7897 kg x √
= 36, 859.21 kg
Volume of Foundation
Vf =
Where:
Vf = Volume of foundation [m3]
c = density of concrete = 2406 kg/m3
Vf =
= 15.32 m3
Depth of Foundation
h=
Where:
Power Plant Design / MEP544D2
25 Power Plant Design for Sagay, Camiguin Hf = depth of foundation [m]
Lf = length of foundation [m]
Wf = width of the foundation [m]
Length of the Foundation
Lf = Lb + 10% Lb
Where:
Lb = length of bedplate [m]
Le = length of engine [m]
Lb = Lb + 6 in x
= 4,267 mm + 6 in x
5,047.4 mm
Lf = 4,419.4 mm + (0.10)(4,419.4 mm) = 4,861.34 mm
Lf = 4,861.34 mm x
= 4.86 = 5 m
Power Plant Design / MEP544D2
26 Power Plant Design for Sagay, Camiguin
Width of the Foundation
Wf = W b + 10%W b
Where:
Wb = Width of bedplate
We = width of the engine [m]
Wb = W b + 6 in x
= 2, 083 mm + 6 in x
= 2, 235.4 mm
Wb = 2,235.4 mm + (0.10)(2,235.4 mm) = 2,458.94 mm
Wf = 2,458.94 mm x
h=
= 2.46 m = 2.5 m
= 1.22 = 1.25 m
Soil Stress
Power Plant Design / MEP544D2
27 Power Plant Design for Sagay, Camiguin Soil Stress =
Soil Stress =
= 3,580.50 kg/m2
Foundation Materials:
Concrete Mixture Ratio = 1 : 3 : 5
X + 3x + 5x = 15.32 m3
9x = 15.32 m3
X = 15.32 m3 / 9
X = 1.70 m3
Absolute Volume Material = Specific Weight of Material / (Bulk S.G.)(Sp. Weight of
Water)
For Cement:
Power Plant Design / MEP544D2
28 Power Plant Design for Sagay, Camiguin 1 x 6.2 x 1.70 m3 = 10.54 m3
= 0.48 ft3/bag x
Absolute Volume Material =
No. of bags =
= 0.014 m3/bag
= 753 bags
3 x 0.52 x 1.70 m3 = 2.65 m3
= 2 ft3/bag x
Absolute Volume Material =
= 0.057 m3/bag
For Gravel:
5 x 0.86 x 1.70m3 = 7.31m3
= 2.89 ft3/bag x
Absolute Volume Material =
No. of Bags =
= 0.082 m3/bag
89 bags
For Reinforcing Bar:
Using 14 mm diam. Rebars
Power Plant Design / MEP544D2
29 Power Plant Design for Sagay, Camiguin WRB = 1%Wf = (0.01)(36.859.21 kg) = 368.59 kg
Weight of Rebar/pc = density of steel x VRB
Weight of Rebar/pc – 7800 kg/m3 x (π/4)(14 mm/1000m)2 (6.1m) – 29.3 kg
No. of Reinforcing Bars =
=
12.58 = 13 pcs
Flexure formula
Fb =
Eccentricity from mid-base
Y1 = 1/2h = ½ (1.25m) = 0.625m
Y2 = 1/3h = 1/3 (1.25m) = 0.42m
A1 = Lf = h = (5m) (1.25m) = 6.25m2
A2 = ½ Lf x b
Where:
Power Plant Design / MEP544D2
30 Power Plant Design for Sagay, Camiguin B=
=
= 0.36m
If b < W f, then W f = b; used b = W f = 2.5 m
A2 = ½ Lf x b = ½ (5m)(2.5m) = 6.25m2
∑A = A1 + A2 = (6.25 + 6.25) m2 = 12.5m2
∑AY = A1Y1 = A2Y2 = [(6.25) (0.625) + (6.25) (0.42)] m3 = 6.53 m3
C=
=
= 0.52 m
For Bolts:
Diameter = 1/8 x (bore) = 1/8 x (150mm) = 18.75 mm
Length = 7/8 x (stroke) = 7/8 x (160mm) = 140 mm
Use L = 30D (from ASME code)
Power Plant Design / MEP544D2
31 Power Plant Design for Sagay, Camiguin L = 30 (18.75 mm) = 562.5 mm
No. of bolts =
Where:
Tbolts =
From Table AT 7 – DME by V.M. Faires
Material: AISI 8630 (for connecting rods, bolts, shapes)
Sy = 100ksi = 100,000psi; Fy = 7 (max. for Shock)
Sy =
= 7,142.86 psi x
Tbolts =
No. of Bolts =
= 49,234.69 kpa
= 20.28 N.m
= 662.13 = 663 bolts
Design for Fuel Tank Power Plant Design / MEP544D2
32 Power Plant Design for Sagay, Camiguin For 800 kW Generator Set (Per Unit 1, 2, 3, 4, and 5)
Type of oil: Diesel Fuel Oil
Specific Gravity = 0.917 @ 600F
(From Power Plant Theory and design by P.J. Potter, Table 5-4, and p.186)
SGf =
;
= SGf x
= 0.917 x
= 917 kg/m3
Generator Output (EP) =
Where:
BP =
ηg = 97.8% (For 1800 rpm & 494.73 kW Ave. Load)
(From Power Plant Theory and Design by P.J. Potter, figure 9-27, p.445)
BP =
= 818 kW
Power Plant Design / MEP544D2
33 Power Plant Design for Sagay, Camiguin
Specific Fuel Consumption
=
= 0.25 kg / kW hr
Plant Operation = 24 hrs/day
Engine Operation Hrs/Day = 18 hrs/day
Expected Fuel Delivery Schedule = Every 15 days
% Rated Capacity
=
x 100% =
x 100% = 75%
From PPE by F.T. Morse, Fig. 6-15, p.164
Max. Fuel Consumption = 0.25 kg/kW-hr
Power Plant Design / MEP544D2
34 Power Plant Design for Sagay, Camiguin Min. Fuel Consumption = 0.21 kg/kW-hr
Volume of Day Tank
VDT =
Where:
mF = daily fuel consumption [kg/day],
= density of fuel = 917 kg/m3
mF = max. fuel consumption x BP x engine operating hrs/day
= (0.25 kg/kW-hr) (181kW) (18hrs/day)
= 3681 kg/day
VDT =
4.01 m3/day
Dimension of Day Tank
VDT =
DDT - √
DDT2 H
(From the above equation) - √
= 1.37m
Power Plant Design / MEP544D2
35 Power Plant Design for Sagay, Camiguin Assume:
HDT = 2DDT = 2(1.37m) = 2.74m
Thickness of fuel Tank
TDT =
Where:
PT = Pressure inside tank = HDT x YFuel
YFuel = 8.996 kN/m3
PT = 2.74m x 8.996 kN/m3 = 24.65 kN/m3 or kPa
Sy = Tensile Yield = 35,000 psi (from DME by V.M. Faires, Table AT 4, p. 568)
F.S.y = Design factor of Safety
F.S.y = 3(for stainless steel from DME by V.M. Faires Table 1.1, p.20)
N = 75%
Power Plant Design / MEP544D2
36 Power Plant Design for Sagay, Camiguin TDT =
= 0.3 mm; use 1 mm thickness
Storage Tank for 30 days operation
VST = VDT = x 30 days/month = 4.01 m3/day x 30 days/month = 120.3 m3/month
Dimension of storage tank
VST =
DST2 H
DST = √
(From the above equation) - √
= 4.25m
Assume:
HST = 2DST = 2(4.25 m) = 8.5m
Material for fuel tank: AISI No. 321 (Stainless steel)
Thickness of fuel storage tank
TST = Power Plant Design / MEP544D2
37 Power Plant Design for Sagay, Camiguin Where:
PT = pressure inside tank = HST x YFuel
YFuel = 8.996 kN/m3
PT = 8.5m x 8.996 kN/m3 = 76.46 kN/m2 or kpa
SY = Tensile Yield = 48,000 psi (from DME by V.M. Faires, Table AT 7, p.576)
F.S.y = 2(for stainless steel from DME by V.M. Faires Table 1.1, p.20)
n = 75%
TST =
= 1.31 mm
Transfer Pump from Fuel Storage Pump to Day tank
Assumption:
Desired operating time for fuel pump = 1 hr/day
ηP = 72%
Power Plant Design / MEP544D2
38 Power Plant Design for Sagay, Camiguin Power input for unit 1, 2, 3, 4, and 5
EPi =
Where:
EPi = electrical power input [kW] or [hp]
Yfuel = 8.996 kN/m3
THD = total dynamic head [m]
TDH = Z2 – Z1 +
+
TDH = (2.74)-(-8.5)m = 11.24 m
Q = volume flow rate [m3/s]
Q --
Where:
VDT = volume of fuel at day tank [m3/s]
Power Plant Design / MEP544D2
39 Power Plant Design for Sagay, Camiguin t = time of pump operation [sec]
Q --
0.00111 m3/s
EPi =
= 0.16 kW x
= 0.21 hp
1 hp is used for unit 1 transfer pump
VARIABLE LOAD CALCULATIONS
Plant Capacity = Peak Load + Peak Load (20)
= 2357.16kW + 471.432 kW = 2828.592 kW
(we use 3200kW from catalog 800kW x 4 genset)
Reserve over peak = plant capacity – peak load
= (3200kW – 2357.16kW) = 842.84kW
Average Load =
=
= 1060.378333kW
Power Plant Design / MEP544D2
40 Power Plant Design for Sagay, Camiguin Capacity Factory -
-
Annual capacity factor =
Load Factor -
Demand Factor –
= 33.14%
=
= 33.14%
– 44.99%
-
-
Plant Factor =
– 73.66%
=
= 33.14%
ENGINE APPLICATION DATA
Engine Specifications
Manufacturer
Mitsubishi Power Plant Design / MEP544D2
41 Power Plant Design for Sagay, Camiguin Engine Model #
S12A2 – Y2PTAW-2
Engine Type
4 Cycle, 12 Cylinder
Induction System
Turbochanged, Inter Cooler
Displacement, L (in3)
33.9 (2071)
EPA Emission Level
Tier 2
HP at Rated Speed BHP (KW)
1207 (900)
Rated RPM
1800
Bore and Stroke in (mm)
5.19 x 6.30 (150 x 160)
Compressor Ratio
15.3:1
Air Filter Type
Dry
Govermor Type/Model
Proact2
Govermor Manufacturer
Woodward
Freq Reg NL to FL
Isochronous Power Plant Design / MEP544D2
42 Power Plant Design for Sagay, Camiguin Freq Reg Steady State
+/- 0.25%
Engine Lubrication System
Oil Pan Capacity gal (L)
Oil Pan w/ Filter
Oil Filter Quantity
Oil Cooler
26.4 (100.0)
31.7 (120.0)
4
Water Cooled
Recommended Oil
15W – 40
Oil Press Psi (kPa)
57 (393)
Engine Cooling System
Genset Max Ambient Temperature
113 (45)
Engine Coolant Cap qt (L)
105.7 (100.0) Power Plant Design / MEP544D2
43 Power Plant Design for Sagay, Camiguin Engine + Radiant System Cap qt (L)
402.0 (380.4)
Water Pump Type
Centrifugal
Coolant Flow gpm (Lpm)
291 (1101.4)
Charge Cooler Flow gpm (Lpm)
124 (469.3)
Heat Rejected to Cooling Water
@ Rated kW: BTU/min (kW)
20418 (358.9)
Heat Rejected to Charge Cooler
@ Rated kW: BTU/min (kW)
16043 (282.0)
Heat Rejected to Ambient Air
@ Rated kW: BTU/min (kW)
4375 (76.9)
Max. Restriction of Cooling Air in
H20 (kPa)
0.5 (0.124)
Power Plant Design / MEP544D2
44 Power Plant Design for Sagay, Camiguin
Engine Exhaust System
Exhaust Manifold Type
Dry
Exhaust flow @ Rated kW cfm (c-mm)
8192 (232)
Exhaust Temp. (Dry manifold) 0F (0C)
953 (497)
Max. Back Pressure InH20 (kPa)
23.6 (5.9)
Exhaust Outlet Diameter in (mm)
8.35 (212)
Exhaust Outlet Type
JIS200A (approx. 8”)
Engine Electrical System
Changing Alternator Volts dc
Changing Alternator Amps
Grounding Polarity
24
25
Negative Power Plant Design / MEP544D2
45 Power Plant Design for Sagay, Camiguin Started Motor Volts dc
24
Battery Recommendations
Battery Volts dc
24
Min Cold Cranking Amps
1100
Quantity Required
2
Ventilation Requirements
Cooling Airflow scfm (cmm)
40042 (1134)
Combustion Airflow cfm (cmm)
3107 (88)
Heat Rejected to Ambient
From Engine BTU/min (kW)
4375 (77)
From Alternator BTU/min (kW)
2275 (40)
Recommended Free Area Intake Power Plant Design / MEP544D2
46 Power Plant Design for Sagay, Camiguin Louver Size ft2 (m2)
87.0 (8.09)
Engine Fuel System
Recommended Fuel
# 2 Diesel
Fuel Line at Engine
Supply Line Min ID in (mm)
0.75 (19)
Return Line Min ID in (mm)
0.75 (19)
Fuel Pump type
Engine Driven
Fuel Pump Max Lift ft (m)
3 (1)
Fuel Flow to Pump gpm (Lph)
148 (560.2)
Fuel Filter
Secondary Filter
2 µm
Secondary Water Separator
Not Included Power Plant Design / MEP544D2
47 Power Plant Design for Sagay, Camiguin Primary Filter
Optional
Primary Water Separator
Optional
Fuel Consumption – Standby Rating
100% Load gph (Lph)
65.2 (246.5)
75% Load gph (Lph)
46.8 (177.1)
50% Load gph (Lph)
32.2 (121.9)
25% Load gph (Lph)
19.3 (73.1)
Fuel Consumption – Prime Rating Power Plant Design / MEP544D2
48 Power Plant Design for Sagay, Camiguin 100% Load gph (Lph)
59.3 (224.5)
75% Load gph (Lph)
42.6 (161.2)
50% Load gph (Lph)
29.3 (110.9)
25% Load gph (Lph)
17.6 (66.6)
Engine Output Deratings – Standby
Rated Temp
400C
Rated Altitude
1500 m
Max Altitude
5000 m
Temperature Derate
Altitude Derate
-5% / 100C
-1% / 100 m
Power Plant Design / MEP544D2
49 Power Plant Design for Sagay, Camiguin
Alternator Specifications
Alternator Type
4-Pole Rotating Field
Exciter Type
Brushless
Excitation
PMG
Insulation
per NEMA MG1
Material
Class H
Standby Temp Rise
150 0C
Prime Temp Rise
125 0C
Lead Connection
12 Lead, Reconnect able
Stator Pitch
2/3 Power Plant Design / MEP544D2
50 Power Plant Design for Sagay, Camiguin Amortisseur Winding
Full
Bearing
Single Double Shielded
Drive Coupling
Flexible Disk
Unbalance Load
20% of Standby Rating
Automatic Voltage Regulator
PMG
Std MX321
Voltage Regulation
No Load to Full Load
PMG Regulator
+/- 0.5%
Load Acceptance
100% of Rating
Subtransient Reactance
480V, Per Unit
18%
TIF (1960 Weighting)