1. General

1.1   Design input

 

1.2   Project brief

This power plant is designed as continuous main electrical source in Macedonia.

The power plant consists of 1 set of diesel generator, with capacity of 2000KW per set.

 

1.3    DG set configuration

The specification outlines the scope of supply for each DG set;

The DG set is driven by diesel engine model GN8320ZD8 manufactured by ND, which is the largest middle speed engine manufacturer in China;

The engine will use diesel oil/heavy fuel oil as fuel. The fuel treatment equipments are designed according to the requirements of using heavy fuel oil.

 

1.4    Standard & code

The design is according to the Chinese standard & code, in line with ISO/IEC standard. The project is designed under the merit of "advanced technology, highly efficiency, safety, economy and practicality".

The installation and the commissioning should be in line with the above standard & code.

 

1.5   Project scope

The scope of the Seller:

Engineering design of the power plant, including power system, fuel system, lubricating oil system, starting air system, cooling water system, air intake & exhaust, compressed air system, control & measuring system, electrical system, etc;

Supplying equipments and materials according to the scope of delivery list;

Installation supervision and commissioning of the power plant;

Operation training

 

2.    Design Fundamentals

2.1 Civil work:

The civil works of the power station are NOT in Supply Scope. The Seller will provide the following drawings and technical information, which will assist civil consultant in designing the foundation and powerhouse.

-      General assembly drawing

-      Powerhouse layout

-      Foundation plan.

-      Schematic piping diagram.

 

The Buyer shall provide the following data for information and use:

.      Soil bearing capacity

.      Dynamic characteristics of soil

 

2.2 Soft water:

Water for exhaust boiler shall be softened according to the international standard and the Chinese standard (GB). Water for DG need not to be softened.

 

2.3 Fuel:

HFO (Heavy Fuel Oil) and diesel oil are the main fuel. The HFO need to be treated before entering the generating sets. The fuel treatment equipments for this power plant are designed according to heavy fuel oil.

 

2.4 Cooling water:

Adopt open cooling tower system.

 

2.5 Electricity:

The generator will supply 400V electricity.

 

3. General arrangement:

3.1 Main building

The main building will be arranged in 2 lines:

The first line (Control room) is for the electrical control room, switchgear room, water soften treatment room and air compressor, air receiver. The second floor is for steam exhaust gas boilers and silencers, boiler is hypaethral layout. The distance of the columniation is 6 m; the span is 8 m, length is 18M and height is 4 m;

The second line (Generator hall) is for DG, lube oil tank, booster, etc, the span is 18m, length is 18m; there is a traveling double girder crane (10t) in the room.

a.     Control room

The total area of control room is 144 square meters with length of 18m, width of 8m and height of 4 m. The roof of the control room is of reinforced concrete construction, and is flat roof that is convenient for installing equipments on it. One silencer and its bracket with weight of 0.8 ton are arranged for each generator. An exhaust gas boiler with weight of 5 tons is arranged for generator, total is 2 boilers.

All cables will be connected to switchgears or control panels through cable channels in the control room.

Double deck sound insulation glazing with length of 1800 mm, width of 1500 mm, and thickness of 8 mm is installed on the control room wall facing to the alternator end of the generator. The bottom of glazing shall be 800 mm above the ground.

Ventilation for the control room adopts air conditioner.

b.    Generator hall

The total area of steel construction main building is 324 square meters with length of 18 m, width of 18m. The distance of the columniation is 6 m. A 10 tons double girder bridge crane with span of 16.5 m is installed in the generator hall. The installing height of columniation for crane railway is 7 m, and its total height is 9.6m. The maximum height of the main building is 12.8 m.

Main equipments in generator hall:

a.     1 set of 2MW generator

Model: 2000GF1-2; Rated power: 2000kW; Rated speed: 600r/min; Weight for each generator: 44 tons including diesel engine 25 tons, alternator 16 tons and engine frame base 2.8 tons.

b.    One set of fuel booster module

c.     One set of HFO separator module

 

3.2 Water pond

One water pond is arranged besides the main building. The water pond is of reinforced concrete construction with length of 4 m, width of 4 m, and height of 3 m. The wall thickness of the water pond is 0.3 m.

One cooling tower is installed on the water pond.

Cooling tower specifications:

Model: GBL-100; Fan diameter: 1800mm, Fan motor: 5kW, Dry weight: 1800kg, Wet weight: 2000kg.

 

4. System specifications:

4.1.  Diesel generating set:

According to the power capacity 2MW, the project plan configures 1 unit of diesel generator.

Rating of the D.G. set

Under above mentioned site conditions

-----------------------------------------------------------------------------------------------

       Rating at       Alternator       Rating at

       engine         efficiency       alternator

       crankshaft                     terminal(MCR)

       KWm             ( % )        KWe         KVA(0.8 pf)

-----------------------------------------------------------------------------------------------

Nominal        2206             94.5          2000       2500

Running   

-----------------------------------------------------------------------------------------------

Note : COP rating will be 90 % of MCR

 

4.1.1.    2MW diesel engine:

Technical particulars for the diesel engine are as follows:

Number of cylinders               8

Arrangement of cylinders           In Line

Bore (mm) X Stroke (mm)          320 X 380

Type                                            4-stroke, direct injection, turbocharger, after cooler

Rotational speed                        600 RPM

Mean effective pressure            18 Bar

at rated power & speed

Mean piston speed                  7.6 m/sec.

Rotation seen from flywheel        Clockwise.

Swept volume per cylinder         30.578 litres

Combustion chamber volume         2.352 litres

Compression ratio                    13:1

Max. combustion pressure         125 bar

(at rated power/speed)

Power rating

Rated power under ISO Conditions

Maximum continuous rating (MCR)    3000 HP

at engine crankshaft

Corresponding rotational speed        600  RPM

 

Under the following limiting ambient conditions :

Air temp. at turbocharger inlet               45 deg. C

Water temp. at charge air cooler inlet    32 deg. C

Deration to power applicable for engine        0 %(nil)

Beyond the abovementioned limiting conditions, deration to power as per ISO 3046 will be applicable.

Rated Power under site conditions mentioned above:                                         

Maximum continuous rating (MCR)     3000 HP

at engine crankshaft

The engine should be capable of accepting a sudden load as per the guidelines in ISO-8528-5-1993(e). As per this standard, the maximum sudden load increase stages are

 

         Baseload %     Sudden load   increase to %

--------------------------------------------------------------------------------

1st Stage          0%          40                40%

2nd Stage             40%         30                  70%

3rd Stage      70%          20                  90%

4th Stage      90%          10                  100%

--------------------------------------------------------------------------------

During each of the above-mentioned stages of sudden loading, the transient speed drop will be restricted to a maximum value of 10% of the rated speed. 

 

4.1.2      Alternator

The Alternator is self-excited, brush-less type in two bearing construction with single shaft extension and IP 23 enclosure. The alternator is fitted with bearing temperature detectors.

- Rated output kVA                                           2500 KVA

- Power factor                                             0.8 lag

- Max. Alternator output at site                   2000 KW

- Duty                                                         Continuous

- Rated speed                                               600 RPM

- Rated voltage                                          400 V

- Rated Current                               3608A

- Efficiency at 100% load and 0.8 PF             94.5 %

- Direction of rotation                                 clockwise

- Number of poles                                             10

- Rated frequency                                             50 Hz

- Over-speed                                                    20% for 2 minutes

- Overload capacity and duration                10%, for max. 1 hr in every 12 hrs

- Insulation class                                         F

- Enclosure                                                IP 23

- Temp. rise class                                       F

- Excitation and AVR type                           Brush-less, AVR

- Connection                                              3w4p

 

4.2 Governor system for DG

Adopt hydraulic governor.

 

4.3  Oil storage

Fuel storages and fuel unloading station are arranged near the main building and considered by customers themselves. The fireproof wall must be built around the fuel storages.

There are one 100m3 HFO storage, one 20m3 buffer HFO tank, one 20m3 DO storage, one 5m3 daily HFO tank, one 5m3 daily DO tank and one 5m3 sludge oil tank.

Heavy fuel oil transported by oil truck will be pumped to HFO storage and buffer HFO tank through HFO unloading pump station.

Diesel oil transported by fuel truck (about 30 ton) will be pumped to DO storage and daily DO tank through DO unloading pump station.

For all HFO storage and tanks and sludge tank, steam coil pipes are installed inside and thermal insulations are provided outside.

Fuel temperature in HFO storage is recommended to be 50-60 centigrade degree, fuel temperature in buffer HFO tank to be 70-80 centigrade degree. The buffer HFO tank is used for pre-separation of sludge and water contained in HFO and providing a suitable constant HFO temperature. Gravitational settling of water and sediment in HFO is an extremely slow process due to small density difference between HFO and the sediment. A large fuel oil surface area and a low viscosity are needed for the settling process. The volume of buffer HFO tank is 20m3, which is enough for 24 hours continuous operation at rated load.

HFO in buffer HFO tank will be pumped to the separator modules. The separating capacity for each separator unit is 1000 kilogram one hour. One works, one for standby. For whole power plant, the maximum HFO consumption one hour is about 500 kilograms. The clean HFO will be pumped to daily HFO tank, and the sludge oil will be pumped to sludge oil tank through the sludge oil pump installed on separator module. Overflow pipe is provided between HFO daily tank and HFO buffer tank.

Heavy fuel oil in daily HFO tank and diesel oil in daily DO tank will be pumped to booster module in generator main building.

 

4.4. Fuel Circuit system

4.4.1 Type of fuel:

The engines are suitable for operation on HFO (Heavy Fuel Oil) with maximum viscosity 380 cSt at 50 deg. C.

While starting or stopping the engine, diesel oil is used as fuel. When the water temperature at inlet to engine is more than 60 deg.C and the HFO (Heavy Fuel Oil) is heated to the required temperature, the fuel can be changed from DO to HFO through a 3-way fuel valve.

Equipment fitted on the engine:

-      Individual fuel injection pump for each cylinder with fuel rack & linkages.

-      Individual injector fitted on each cylinder head.

-      High-pressure injection pipes

-      Main fuel rails for feeding and return.

-      High-pressure pipe connection for each cylinder

Equipment delivered loose:

1)            One HFO separator set

2)            One fuel viscosity control unit (booster) consisting of:

Two electric motor driven fuel feed pump (one for working, one for standby);

Two electric motor driven fuel booster pump (one for working, one for standby);

One duplex type coarse filter;

One pressure-regulating valve;

One steam heater for HFO;

One flow meter for HFO;

One 3 way fuel changeover valve;

One viscometer & temp controller;

One emergency pressure safety valve;

One duplex type fine filter;

One mixing vessel with safety valve;

One pressure-regulating valve in fuel return;

3)   Complete interconnecting piping with flanges, fasteners, valves, non-return valves, bosses,        supports, etc as necessary up to Day Tank.

Fuel consumption:

The hourly rate of fuel consumption per kilowatt Power delivered at the crankshaft flange at rated power & speed (after running in of the engine & for engine with driven raw water, fresh water & lube oil pumps) is 198.00 gms, when engine operates at Maximum Continuous Rating (MCR).

FUEL CONSUMPTION (with 3 driven pumps)

====================================================

         GN8320ZD8          Consumption at  

                            (600 RPM)             engine Cr.shaft

                                                      gm/kWh

====================================================

                100% Load              198.00

SITE      -----------------------------------------------------------------------------

          75% Load                205.00

CONDITION-------------------------------------------------------------------------

             50% Load                215.00

====================================================

The values are subject to a 3% tolerance and apply when burning fuel with a net calorific value of 10,200 KCal/Kg minimum.

 

4.5  Lube oil circuit system

Oil sump capacity (ltr)

The engine is equipped with a dry sump attached to the bottom of the crankcase. The lube oil for the engine is stored in a separate tank positioned away from the engine. This arrangement offers much more reliability than the wet sump arrangement & also increases the time between oil changes.

The total oil capacity of this lube oil tank is 1500 ltrs.

Lube oil consumption

The average lube oil consumption is 1.2 gm/kwh (+/- 0.2 gm/kwh) at MCR at crankshaft for a well-run engine.

Equipment fitted on the Engine:

-      One engine driven lube oil supply pump

-      One engine driven lube oil transfer pump

-      One pressure-regulating valve

-   One lube oil thermostatic valve (option)

-      Complete interconnecting piping with flanges, fasteners, valves, non-return valves, bosses, supports, etc as necessary.

Equipment delivered loose:

-      One tank for lube oil (1500 ltrs capacity) with interconnections to the engine

-      One electric motor driven lube oil-priming pump (option)

-      One manual lube oil-priming pump

-      One lube oil cooler

-          One centrifugal lube oil filter (FLL75 bypass type)

 

4.6 Starting air circuit system

The DG is started by the compressed air.

Equipment fitted on the engine:

Compressed air starting equipment including:

-      One rotary distributor

-      One air-starting valve in each cylinder head

-      Connecting air piping on the engine

Equipment delivered loose:

-          One electric motor air compressor

-   One air receiver of 500 ltrs (30 bar) capacity. This capacity is enough to start the engine 7 times without intermediate refilling of the receiver.

-          Complete interconnecting piping with flanges, fasteners, valves, non-return valves, bosses, supports, etc as necessary.

 

4.7 Cooling water circuit system

The engine cooling is achieved by open cooling water circuit.

Drawn by the water pump from the reservoir, the cooling water flows to the air cooler, and to the injector cooling oil cooler if provided and to the lube oil cooler, and then enters the inlet water main pipe and the turbocharger. The cooling water is discharged out through the outlet water main pipe. Between the inlet water main pipe and the outlet water main pipe there is a thermostatic valve with a sensor at the engine outlet water main pipe, which by-passes part of the outlet water to the inlet of the water pump to keep the water temperature to be not too low. Finally the water is cooled in a cooling tower.

 

Equipment fitted on the engine:

-          One engine driven fresh water pump

-          One water-cooled charge air cooler

-          One fresh water cooler

Equipment delivered loose:

-   One cooling tower (civil construction provided by customer)

-          One dosing arrangement for water system (for each D.G. Set).

-          Complete interconnecting piping with flanges, fasteners, valves, non-return valves, bosses,    supports, etc as necessary.

 

4.8 Intake air and ventilation system

The air intake system is equipped with air filtration (ABB type installed on the engine) to clean air.

Axial-flow explosion-proof fans opposite to generator shall be arranged for the main building on the engine side. Airflow capacity for each fan is about 20000m3/h.

The axial-flow fans are used for supplying air for the generator and reducing temperature in the engine room through convection. The quantity of heat dissipated from the generator is about 420 MJ/h. The air will be discharged through natural ventilation on the upper side of the main building.

 

4.9 Exhaust gas and environmental impact mitigatory system

Air pollution prevent

All diesel engines for the power plant are acquired international air pollution prevent certificate according to the provisions of Annex �?of the international Convention for the Prevention of Pollution, 1973, as modified by the Protocols of 1978 and 1997 relating thereto and of the Technical Code on Control of Emission of Nitrogen Oxides From Marine Diesel Engines.

Emission data as follows:

Applicable Nox emission limit (regulation 13 of Annex �?: 12.5g/kWh

Engine’s actual Nox Emission Value: 9.69g/kWh

Noise

The mechanical noise beside the diesel engine at a distance of 1 m is 112 dBA. The mechanical noise will be proofed and reduced by the main building.

The exhaust gas noise is reduced through a residential type silencer to 70dBA at a distance of 1 m.

The exhaust gas from diesel generator flows to exhaust gas pipe (DN400), pass a tee joint, and then divides two ways. One flows to silencer through a butterfly valve, another flows to exhaust gas boiler. When the exhaust gas boiler works, the butterfly valve for silencer will close and the butterfly valve for exhaust gas boiler will open, and then exhaust gas will vent from the chimney on the boiler. When the boiler cannot work normally or the boiler need to be stopped, the butterfly for boiler will close and the butterfly valve for silencer will open, and then exhaust gas will vent from the chimney on the silencer.

One steam exhaust gas boiler is arranged for the power plant. One exhaust silencer (Residential type) is fitted to the generator.

Equipment fitted on the engine:

-      Lagged set of exhaust manifold with expansion bellows

-      One ABB turbocharger.

-      Exhaust outlet connection with expansion bellow.

Equipment delivered loose:

-          One exhaust silencer

-          One exhaust gas boiler

-          Insulation /lagging/cladding for exhaust ducting

-          Complete interconnecting piping with flanges, fasteners, t-joints, butterfly valves, bosses, supports, etc as necessary.

 

4.10 Steam system

One exhaust gas boiler is arranged on the roof of control room. Heat exchange area for the boiler is 67 m2, steam capacity for the boiler is 700kg one hour at 170 degree centigrade and 0.7 Mpa. Steam from boilers will flow to steam main pipe and divide to separator and pump room, oil storage and main building through main steam distributor and steam distributors. The main steam distributor is located on the roof of HFO equipment room, and other steam distributors are located beside the equipments need to be heated.

Drain trap is arranged on the end of steam pipe for equipment need to be heated, condensation water will be not recycled.

Equipments for steam system:

-          One exhaust gas boiler

-          Two water feed pumps

-          Two Steam distributors

-          Insulation /lagging/cladding for steam pipes

Complete interconnecting piping with flanges, fasteners, t-joints, valves, bosses, supports, etc as necessary.

 

4.11 Water soften system for exhaust gas boiler

One water soften equipments are arranged for the power plant, water treatment capacity is 2000kg one hour.

The water soften equipment adopts resin exchanger treatment system.

Equipments for water soften system:

-          1 water soften equipment

-          2 water feed pump

-          One water tank

Complete interconnecting piping with flanges, fasteners, valves, bosses, supports, etc as necessary.

 

4.12 Electrical system

The scope of electrical system consists of the electrical equipments inside of main building. The Buyer takes responsibility to transmit power from the feed-out panel to user position.

4.12.1 Generator switchgear

The generator switchgear is used to deliver electricity from alternator to busbar.

1)            3 pole electrically operated Air Circuit Breaker (ACB)

2)            Metering / Protection CT and PT

3)            Meters, indicators

4)            Ammeter for every phase

5)            Voltmeter with selector switch

6)            ACB ON

7)            ACB OFF

8)            ACB spring energized

9)            Manual ACB ON/OFF

DMR-301P digital common relay is adopted for gen-set protection, which is used for alternator protection, switch control, monitoring, measuring, display and electrical failure record.

The following functions and protection can be carried out on the relay:

-          Voltage locked over current

-          Reverse power

-          Over current

-          Over voltage

-          Low voltage

-          Low frequency

-          Over frequency

-          Over load

-          Accurate measuring of all operation parameters such as power, voltage, current, frequency, power factor and others

-          Display the conditions of all switches

-          Running record and failure storage

10)         Control and operation functions

The generator switchgear provides necessary Monitoring, Control and Protection functions for the DG set.

Main functions for control and operation:

-          Starting engine

-          Speed control

-          Voltage adjustment

-          Load sharing mode select

-          Voltage measuring changeover

-          Current measuring

-          Frequency indication

-          Power indication

-          Excitation current indication

-          Speed indication

-          Alarm

 

4.12.2   LV auxiliary panel

A LV auxiliary panel is supplied for all auxiliary equipments including air compressors, cooling towers, fuel unloading stations (provided by customer), HFO treatment equipment and others.

The L.V. electrical systems consist of auxiliary electrical system for generator, auxiliary electrical system for power plant.

The auxiliary equipments for generator include 1 cooling tower motor (5KW), 1 air compressor motors (5.5kW) and 1 booster motor (11kWx1).

The auxiliary equipments for power plant include 1 HFO unloading pump station (11KWx2), 1 DO unloading pump station (11KWx2), 1 HFO separator module (7.5kW), 2 boiler water feed pump motors (2.2kWx2) and one soft water pump motor (3kW).

Notes: customer provides fuel unloading pump stations and all fuel storages.

 

4.12.3   Control system

4.12.3.1  DG

For each one generator, one control and operation panel and one local control desk are supplied.

Gen-set control and operation panel

The control and operation panel in the control room provides necessary Monitoring, Control and Protection functions for the DG set. It controls the Gen-set running according to the program set in PLC. All Gen-set’s running parameters such as voltage, current, power, power factor, frequency, and speed can be displayed on it.

Major Component in console

1)    Control PLC

2)    Speed Governor controller

3)    Automatic Voltage Regulator

4)    Engine Frequency Monitoring Unit

5)    Meters

Ammeters (3 nos.)

Voltmeter with selector switch

Power meter

Frequency meter

PF meter

Analog Excitation fundamental ammeter

Analog Excitation harmonics ammeter

Counter for running hours

6) Operation and indicators

Push buttons, change over switches

VCB engaged indication,

Engine start permission indication

Excitation change over switch

DG VCB ON/OFF

DG VCB Trip and alarm indication

Engine Idling/Rating

Engine start

Engine normal and emergency stop

7) AVR

The integral TWL-ND AVR is designed for the TFW generator specially. It configures with stability adjusting, voltage adjusting, and gen-set paralleling reactive power sharing adjusting.

Input capacity         AC 230V

Compare voltage      AC 100V from PT AC

Current signal         CT 5A from CT B

Max. Output           DC.100V, 10A

Trigger Type          Alternator exciter Remanence

Accuracy             ±1%

Am. Temp            -40~+60°C

Reactive sharing      Auto regulating

1)            T4500 auto synchronizer

SELCO T4500 auto synchronizer is designed for automatic synchronization between generator and bus-bar in a minimum of time by controlling the speed via the electric servomotor on the governor.

The T4500 measures the voltage across two phases on either side of the circuit breaker in order to obtain data on voltage, frequency and phase difference for closing the circuit breaker at exact phase accordance.

The synchronization function will become active when the difference between the bus voltage and the generator voltage is within limits. The voltage difference is selectable between 2% to 10%.

When the synchronization function is active, the T4500 will automatically adjust the speed of the generator through the governor in order to match the frequency to the bus-bar.

The T4500 will continuously adjust the generator speed until the frequency difference is within limits. When the voltage and frequency difference are within limits, the closing signal will be activated just before the next phase accordance, anticipating the circuit breaker make time. The T4500 compensates for this make time so that the circuit breaker will close exactly at zero phase.

Specifications for the T4500:

Circuit breaker operating time               20~200mS

Frequency difference                       0.1~1Hz

Voltage difference                  &nbs, p;      10%

Reference voltage                         110/100V with voltage matching

Operating Temp                           -20~+70°C

Contact rating                              AC: 380V, 2A, 250VA; DC: 110V, 2A, 100W

Auto synchronization system is adopted between generators and network and among generators. Manual synchronization system is supplied for standby.

Main functions on the control and operation panel:

-          Starting engine

-          Speedup

-          Speed-down

-          Generator switch ON/OFF

-          Voltage adjustment

-          Reactive power share

-          Synchronization

-          Voltage measuring changeover

-          Lube oil pressure

-          Water pressure

-          Voltage

-          Current

-          Frequency

-          Power

-          Excitation current

-          Speed

-          Alarm

 

Local Control Desk

Local Control Desk is provided for monitoring pressure and thermal parameters of the running engine. Also starting, stopping and speed control of engine is possible in local control operation mode. It is located near the engine.

Major Components in Local Control Desk

1)    Pressure gauges, switches

Lube oil filter inlet pressure

Lube oil filter outlet pressure

Lube oil in cylinder head inlet pressure

Cooling water pressure

2)    Temperature indication

Cylinders cooling water temperature scanner

   Cylinder cooling water outlet temperature measurement system with Cu50 thermo resistor for each cylinder and scanned by a multi-channel meter.

Engine exhaust temperatures scanner

   Pyrometric exhaust gas system with thermocouple for each cylinder and turbocharger, and scanned by a multi- channel meter.

Lube oil engine inlet /outlet temperature

Water engine inlet/outlet temperature

3)    Engine RPM indicator with cranking and over speed protection.

4)    Push buttons, indicating lamps, selector switches

- Common engine alarm

- Engine start permission

- Local / remote mode select

- Engine start / stop

- Flasher off

- Engine speed raise / low

- Emergency stop

 

4.12.4   Protection system

4.12.4.1  Diesel engine

The diesel engine will stop automatically in case of the following failures:

-          Very low lube oil pressure

-          Very high water engine outlet temperature

-          Engine over speed

The diesel engine will alarm automatically in case of the following failures:

-          Low lube oil pressure

-          Low water pressure

-          High lube oil temperature

-          High water temperature engine inlet

-          Alternator bearing temperature high

 

4.12.4.2   DG electricity system

The generator adopts digital integrated relay protection system for monitoring and protection.

A DMR362 digital integrated relay is installed on generator switchgear, which is used for alternator protection, switch control, monitoring, measuring, display and SOE record.

The following functions are configured on the relay:

-          Differential current

-          Reverse power

-          Instant trip current

-          Voltage locked over current:

-          Over current

-          Over load

-          Earth failure

-          Over voltage

-          Under voltage

-          Low frequency

-          Over frequency

Model	GN8320ZD8
Type	Inline, four-stroke, direct injection, turbocharged, and after cooled
Quantity	1 set
Rated power	2206kw
Rated speed	600r/min
Bore/stroke	300/380mm
Starting method	Compressed air
Cooling system	Open water cooling
Dimension	5620X1620X2760mm
Weight	25000kg
Manufacturer	ND Power

Model	TFW-900
Type	Brush-less synchronous alternator
Quantity	1 set
Rated power	2500KVA
Rated speed	600r/min
Rated voltage	400V
Frequency	50HZ
Power factor	0.8 lagging
Insulation class	B/F
Excitation	AVR
Dimension	3480×2150×2150mm
Weight	16000kg
Manufacturer	ND Power

Model	KYDH204CD-23 module
Quantity	1 set
Rating treatment L/h	1000
Centrifuge Temperature	90-98°C
Light phase output pressure: MPa	0.2MPa
Separator motor	7.5kW
Sludge pump	1.5kW
Power source	3P/400V/50Hz
Material medium	HFO (380CST)
Manufacturer	ND Power

Model	CRGD-1.0
Fuel feed capacity	1 m3/h
Fuel circulating capacity	1.6m3/h
Fuel supply pressure	0.2Mpa
Fuel feed pressure	0.4Mpa
Max. fuel temperature	135°C
Rated fuel temperature rise	4-5°C/min
Viscosity before engine inlet	9-13 cSt
Viscosity deviation	±1.5cSt
Viscosity steady time	Max. 3.5 mins
Viscosity control accuracy	Max. 3%
Primary filter	80 mesh/inch2
Fine filter	Max. 10-30µ
Power source	3P 380V 50HZ
Power	7.5kW
Load	5kW
Manufacturer	ND Power

Model	LFL67-0.7
Rate steam capacity:	700kg/hr
Quantity	1 set
Steam pressure:	7Bar
Steam temperature	170°C
Safe pressure	0.75Mpa
Heating area	67m2
Boiler back pressue	Max. 220pa
Waste gas inlet temperature	350°C
Waste gas outlet temperature	200°C
Overall dimensions LxWxH	Ø1316x3430mm
Weight	3000kg
Manufacturer	ND Power

Model	CZ-20/30F
Type	Single row vertical, differential piston two-stage compression, air cooled
Exhaust capacity	Min. 20m3/h
Quantity	1 set
Rating pressure	3MPa
Cylinder bore	1st stage: 102mm, 2nd stage: 90mm
Piston stroke	65mm
Exhaust temperature	Max. 85°C
Rotary speed	1000r/min
Shaft power	<5kW
Motor	Y132S-6/5.5kW
Overall dimensions	970x440x700mm
Weight	155kg
Manufacturer	ND Power

Model	B500/3.24
Quantity	1 set
Air inlet & outlet	�?33
Design pressure	3.24MPa
Working pressure	2.94Mpa
Max working temperature	‘≤80°C
Volume	500L
Manufacturer	ND Power

Model	GBL-100
Quantity	1 set
Cooling capacity	100M3/H
Inlet water pressure	34 kpa
Temperature reduce	5~10°C
Fan power	5Kw
Net weight	1800kg
Manufacturer	ZJ., Ltd.