Cooling water temp. at air cooler inlet 25�?/DIV>
The output and fuel oil consumption rate are to be corrected according to relevant technical documents of the diesel engine manufacturer when the service condition on site does not conform to the standard conditions specified in ISO3046-1995.
HT water and injector cooling water
Normal condition |
Clear |
PH |
6.8--8 |
Total hardness (CaCO3 in ppm) |
mg/l |
max |
100 |
Chlorinity |
mg/kg |
max |
60 |
Total salinity |
mg/kg |
max |
250 |
Density of acid ion ( SO2-4) |
mg/kg |
max |
60 |
Fe |
mg/kg |
max |
0.3 |
Silicon dioxide |
mg/kg |
max |
50 |
Residue on evaporation |
mg/kg |
max |
400 |
Viscosity, min. |
cSt at 40�?/DIV> |
2.8 |
Viscosity, max. |
cSt at 40�?/DIV> |
14.0 |
Density, max. (at 15 °C) |
g/ml |
0.92 |
Conradson carbon res. max. |
% mass |
3.0 |
Sulphur, max. |
% mass |
2 |
Vanadium, max. |
ppm |
100 |
Sodium, max. |
|
0 |
Ash, max. |
% mass |
0.05 |
Water, max. |
% Vol |
0.30 |
Water before engine, max. |
% Vol |
0.2 |
Flash point, closed Pensky-Martens, min. |
�?/DIV> |
60 |
Pour point, upper max. |
�?/DIV> |
6 |
Aluminium + silicon, max. |
mg/kg |
25 |
Total sediment potential, max. |
% mass |
0.1 |
Lube oil for engine lubrication and rockerarm lubrication:
Viscosity: SAE40
Total base number (TBN): �?0
Please consult recommended lube oil specifications of the engine manufacturer for specific lube oil to be used.
Lube oil for governor and turbocharger:
HU45(GB2537-81)
The plant will be designed and manufactured according the following codes and standards.
Mechanical system: Relevant ISO and GB standards
Electrical system: IEC standards.
This 8 x 4.1MW diesel power generating plant will occupy an area dividing into four sections i.e. main DG building, cooling water station, tank area and heavy fuel treatment station.
The main DG building consists of three rooms i.e. switching room, DG room and auxiliary room.
The elevation of the DG room is approx. 16m equipped with a 7 ton bridge crane for maintenance and lifting of components. 8 DG sets are laid out in parallel transversally.
The auxiliary room is on the engine side of the DG room . Auxiliary equipment such as oil pumps, water pumps, heat exchangers, air compressors, air bottles and some pipes will be installed in the room and the air intake and gas exhaust pipes as well as HT water expansion tank will be installed at the top of the room.
Switching room is located at the generator side of the DG room. There are specific rooms for high voltage, central control, switching gear and transformer.
A fresh water pond will be build in the Plant. Low temperature water circulating pump, central plate heat exchanger and LT water circulating pump. Plant water treatment facilities are located in the water treatment room. There is a water pump room for distinguish pump and pumps for daily life and production.
Fuel oil storage tanks in the tank area will be built together comprising two or three 1,000m3 fuel oil storage tanks and eight 40m3 light diesel oil service tank. The capacity of the fuel oil tanks can enable the operating of 8 DG sets for15 days.
Position for slag oil is reserved in the tank area. Transfer pumps for light diesel oil and heavy fuel oil will be installed inside the tank area.
�?/FONT>. Diesel generating set
CLF4100/11000 DG set consists of one set of MAN 9L32/40 diesel engine as prime mover, one generator, excitation system and AVR, control and monitoring system, protection system and various auxiliary equipment. The diesel engine and the generator will be installed on separate foundation block and connected through flexible coupling. The DG set features reliable running, prolonged TBO and easy maintenance.
Type CLF4100/11000
Rated power 4100 kW
Rated voltage 11kV
Rated current 268.8 A
Number of pole pairs 5
Power factor 0.8 (lagging)
Rated frequency 60 Hz
Rated speed 720 r/min
Phase 3 phase
Excitation brushless excitation
Dry Weight 84 ton
※External dimension(L×W×H) 11,640 x 2,710 x 5,120 mm
�?The dimensions and weight may vary depending on the generator make and type.
9L32/40 engine is a four stroke, single action, direct injection, gas turbocharging, intercooler medium speed high power diesel engine.
Type |
9L32/40 |
Model |
4 stroke, V-type, direct injection, gas turbocharging, air intercooled
|
N0. of cylinders |
9 |
Rotating direction |
clockwise (view from PTO) |
Cylinder bore
|
320 mm |
Stroke |
400 mm |
Swept volume
|
32.17 dm3 |
Compression ratio |
14.5/1 |
Type of combustion chamber |
direct injection |
Injection method |
mechanical drive, single body injection pump |
Starting method |
compressed air starting |
Max. continuous rating (MCR) |
4500kW |
Continuous service rating (CSR) |
4050kW |
Overload power (1h out of 12 h) |
4950kW |
Rated speed |
720 r/min |
Mean effective pressure |
2.49MPa |
Max. explosion pressure |
19.0±0.29MPa |
Min. stable speed |
250 r/min |
Firing speed |
80 r/min |
Exhaust temp. at cyl. outlet |
510±50�?(difference between any two cylinders �?0�? |
Fuel oil consumption |
185+5�?nbsp; g/kw.h (Lev= 42700kj/kg�?/DIV> |
Lube oil consumption |
�?.0 g/kw.h |
External dimension |
7800 x 2695 x 4385 mm(L×W×H�?/DIV> |
Weight (dry) |
51 ton |
Type TFW4000-8
Rated power 4000kW
Rated voltage 11kV
Rated speed 720 r/min
Rated frequency 60Hz
Power factor 0.8 (lagging)
Efficiency 96%
Insulation Class F
Protection IP23
Cooling method Air cooling
Excitation Brushless excitation
Lubricating method Complex lubricating
Bearing lube oil N46 (GB443-89)
Weight
External dimension
Steady state voltage deviation ±2.5%
Transient voltage regulation within +20%�?-15%
Voltage recovery time �?.5 second
Voltage fluctuation �?%
No-load voltage setting range 95% --105% rated voltage
The distortion rate of sinusoidal waveform
of line voltage at no-load rated voltage. �?%
Steady state frequency deviation 5%
Transient frequency deviation ±10%
Frequency recovery time 7 second
Frequency fluctuation �?%
�?/FONT> Mechanical auxiliary system
The proper function of the DG-set is dependent on the mechanical auxiliary systems. The proposed systems have been optimized for the this particular plant. The function of the systems are to provide the engine with fuel, lubricating oil, starting air, cooling water and charge air at required quantity and quality as well as to dispose of exhaust gases in a proper manner.
The main function of the fuel oil system is to supply the Diesel engine with fuel oil of the necessary amount, pressure, temperature, viscosity and quality during all loads and environmental conditions.. The power plant is using Light Fuel Oil as the main fuel.
1. Fuel oil storage system
Diesel oil transfer pumps are to be equipped to facilitate unloading of fuel oils. The diesel oil transfer pump is for delivering diesel oil to the diesel oil daily tank for starting ,running and stop operations of the DG sets.
Main facilities in the fuel oil storage system are
Strainer 8 sets
LFO transfer pump 4 sets
LFO delivery pump 2 sets
LFO daily tank 8 set
LFO storage tank 2 sets
Light fuel oil daily tanks are all equipped with level indicator and level switches for alarm and control.
2. LFO feeding unit 4 sets
The function of the feeding pump unit is to pump fuel oil from the storage tank to the day tank. It provides the engine with filtered fuel of correct quantity and pressure. It consists of feeding pump, fine filter, flow meter, booster pump, and control system. Its function is to supply fuel oil to diesel engine at an appropriate viscosity, pressure, flow and cleanness. Transfer pumps and other components are built on a steel frame, which forms one compact unit. Every two DG sets share one unit
Main facilities are as follows:
Electric feeding pump 2 sets
Electric booster pump 2 sets
Duplex strainer 2 sets
Duplex fine filter 1 set
Pressure drop indication and alarm 1 set
Control panel 1 set
Connecting pipe, valve, flanges 1 set
Steel base frame 1 set