Upload
bastech
View
235
Download
0
Embed Size (px)
Citation preview
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 1/9
SECTION 1 : EXECUTIVE SUMMARY
This proposal describes the supply of 2 off MAN B&W Diesel Ltd, 18VP185 industrial generator drive engines for FGWilsons, BBC Phase 2 Project
The 18VP185 is the most recent development of the VP185 engine range and incorporates state of the art technologywith proven reliability. There are over 295 VP185 engines in service or on order, examples having run 24,000 hours of operation to major overhaul. The VP185 has amassed over 1,000,000 hours experience, including a high proportion of operational hours at low power and/or idling and offers the following major benefits :-
High availability (typically in excess of 95%).Low fuel consumption.High output power at 1500 and 1800 rpm.Highly competitive through life costs.
Customer support is a major concern for engine operators and the VP185 package is supported by a comprehensiveworldwide service network. This enables MAN B&W Diesel Ltd to provide our customers with support 24 hours, 365days a year in many regions of the world.
In addition to representing excellent capital value, the VP185 offers competitive fuel consumption and through lifecosting. If required this can be supplied based upon the engines expected operating profile.
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 2/9
SECTION 2 : PERFORMANCE SPECIFICATION
Engine Data
MAN B&W Diesel Ltd 18VP185:
No. of Cylinders 18
Configuration 90° Vee
Operating Cycle 4 Stroke
Bore 185 mm
Stroke 196 mm
Swept Volume per cylinder 5.27 litres
Compression Ratio 13.1:1
Combustion System Direct Injection
Charge Air System 2 stage intercooled andaftercooled
Rotation (looking on flywheel) Anti-clockwise
Thread System SI Metric and BSP
Approximate Engine Dimensions :
Length 3,999 mm
Width 1,490 mm
Height 2,245 mm
Dry Weight 10,210 kg
Sump Capacity Min/Max 328/388 litres
Primary Coolant Capacity 300 litres
Secondary Coolant Capacity 125 litres
This offer is for a 18VP185 running at a constant speed of 1500rpm, at site conditions of :
Air Intake temperature Max 40 ºC Altitude Sea LevelSecondary water return temperature 60 ºCVoltage for Auxiliaries 380 / 440 Volts, 3 phase at 50 / 60 Hz.
SITE POWER OUTPUT
Based on the above site conditions the rating for the engines offered would be:
Continous Power Output (COP): 3250 kWb + 10% Overload for 1 hour in 12
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 3/9
NOISE SPECIFICATION
A typical noise spectrum for the basic engine can be provided if required.
STARTING TIMES & LOAD ACCEPTANCE
Start times and load acceptance capabilities are dependent on the inertia of the alternator.Typically based on an alternator inertia of 140 kgm², the engine would be firing and accelerating after 5 seconds and atrated speed after 12 – 15 seconds.
Note: this is based on the assumption that engine is conditioned i.e. engine jacket water heaters are on and up totemperature (45°) and oil is primed.
Once the engine has reached synchronous speed the engine can be loaded in stages.
Based on a typical alternator inertia of 140 kgm², the engine will accept a 40% load step (from zero).
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 4/9
SECTION 3 : PRICE SCHEDULE
The following prices relate to the scope of supply defined in section 4 of this document and are offered in pounds
sterling, net of all taxes, ex-works in accordance with INCOTERMS 2000.
2 off MAN B&W Diesel Ltd, 18VP185 Industrial diesel engine as detailed herein:
PROJECT PRICE SCHEDULE AND OPTIONS (Per Engine)
18VP185 Industrial diesel engine
• Triplex Lub Oil Filter
• Crankcase breather stub pipe without flexible pipe
• Simplex fuel oil filter (standard)
• Electrically operated shutdown flaps (standard)
• Standard crankcase doors
• Electric LO priming pump
The following additional options are included in the total contract price:
• Air Driven starter motor with regulating valves
• Additional air start motor (fitted) with regulating valve
• Primary water heater module
• Air valve lubricating oil system (AVLOS)
• Set of exhaust flexible bellows and joints
• 3 into 1 exhaust adaptor
• Standard aluminium panel type air filter
• Woodward with load share in lieu of standard Woodward system
• Set of temperature/pressure transducers• Single exhaust thermocouple
• Flexible coupling
Manual barring gear
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 5/9
SECTION 4 : 18VP185 SCOPE OF SUPPLY
ITEM 4.1 INDUSTRIAL 18VP185 ENGINE EQUIPMENT
Note: Unless otherwise stated, items are to standard MAN B&W Diesel Ltd specifications.
All auxiliary items are rated at 380 / 440 Volts, 3 phase at 50 / 60 Hz.
4.1.1 BASE ENGINE
Flywheel
Engine flywheel SAE21 with starter ring.Engine flywheel housing SAE “00”.Barring gear to manually turn the engine to facilitate maintenance.
Engine Mounting
One set of engine feet.
Torsional Vibration
Torsional vibration damper fitted at the crankshaft free end.
4.1.2 STARTING SYSTEM
Pneumatic Starting Systems
Two turbine type Air start motor 1 x 10 bar with governor boost unit (Duty & Standby). Air pressure reducing valves supplied loose allowing the stored air pressure (max 40 Bar) to be reduced to the correctworking level. Complete with safety and shut off valves.
STARTING AIDS
Primary Water Pre Heating
Primary water heater unit rated at 9 kWe. Includes heating elements and circulating pump mounted on frame andwired.
Lub Oil Pre Heating
Lub Oil preheating not included.
4.1.3 COOLING SYSTEM
PRIMARY CIRCUIT (FRESH WATER)
Fresh water coolant is circulated through the crankcase jacket, cylinder heads, turbocharger and exhaust housings andthe high pressure charge air aftercooler by a free end mounted gear driven circulating pump. The system is fitted with athermostatic valve for temperature control. Primary circuit coolant header tank by others.
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 6/9
SECONDARY CIRCUIT
Secondary water is circulated through an engine mounted plate type lubricating oil cooler, high pressure charge air aftercooler and the three low pressure charge air intercoolers by a gear driven pump mounted at the free end of the
engine. Thermostatic valve. Secondary circuit coolant header tank by others.
4.1.4 LUB OIL SYSTEM
Wet sumpExternally mounted gear type pumpPressure relief valveLubricating oil thermostatic bypass control valvePlate type lubricating oil cooler (secondary water cooled)Filler and strainer DipstickTriplex lub oil filter mounted on engine.
Crankcase breather stub pipe. Air Valve Lubricating Oil System (AVLOS).
Mechanically driven lubrication pump to provide lubrication to valve rockers. Fitted to engine. Required for continuousoperating power applications running for 1000 hours or more per year.
PRIMING PUMP & PIPING
Electric motor driven lub oil priming pump, off engine unwired suitable for continuous or intermittent priming.Rated at 2.2 kW, complete with starter. Flexible connections not included.
Pump control to be via start sequence logic in engine control panel.
4.1.5 FUEL OIL SYSTEM
Combined fuel pumps and injectorsFuel reservoir Fuel oil cut-off valveFeed pump - suction lift 2000 mm from crankshaft centre lineSimplex Fuel Oil Filter.
4.1.6 EXHAUST SYSTEM
The exhaust system is of pulsed design, feeding a 2-stage turbocharging system with three exhaust outlets. The
exhaust system is enclosed in fresh water-cooled, gas tight casings.
Set of Flexible bellows and joints for connection between engine and exhaust ducting. A “three into one” adapter for combining the three exhaust outlets into a single duct, complete with joints.
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 7/9
4.1.7 ASPIRATION AIR SYSTEM
AIR INLET SYSTEM
6 low-pressure turbochargers deliver first stage air to the intercooler. 3 high-pressure turbochargers delivers secondstage charge air to the aftercooler.
Electrically operated Shutdown flaps, which are designed to starve the engine of aspiration air in case of emergency.(Designed energised to shutdown).
AIR FILTERS
Single stage panel type air inlet filters, having corrugated, washable elements of dry polyester media backed by wiremesh, bracket mounted to each bank of the engine.
4.1.8 GOVERNING SYSTEM
Woodward UG Actuator with Woodward 2301A Speed Controller with Load Share.2301A has load sharing ability and self contained load sensor. Variable droop or isochronous load share operation.Start fuel limit and failed speed sensor detector.Graduated output lever.Governor boost unit (With Air start Engines only).
4.1.9 SAFETY SWITCHES & TRANSDUCERS
Note: All switches and transducers are supplied fitted and unwired.
2 stage switches and brackets 24V D.C. unwired as follows;
High primary water temperature.High secondary water temperature.Low lub oil pressure.High lub oil temperature.Fail to prime (single stage).Low Start Air Pressure (if applicable)
1 Speed sensing switch 24V D.C. (loose) complete with engine mounted electronic magnetic pick up (unwired).Functions are:
Disengage starter motors.Engine running signal.
Engine ready to load.Overspeed.
Note: As standard the speed sensing switch is suitable for 0–1 mA output, representing zero to full speed.
Single exhaust thermocouple supplied loose for fitting by client into exhaust ducting to give a general indication of overall exhaust temperature.
Set of temperature transducers (4 – 20 mA) for monitoring
Charge air temperaturePrimary water temperature
Secondary water temperatureLub oil temperature
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 8/9
Set of pressure transducers (4 –20 mA) for monitoring
Charge air pressureLub oil pressure (Before & After filter)
Fuel oil pressurePrimary water pressureSecondary water pressure
4.1.10 FLEXIBLE COUPLING
Suitable flexible coupling supplied loose, bored for alternator shaft.
Note: coupling selection can be confirmed once full details of your alternator/rotor inertia has been advised.
ITEM 4.2 TERMINATION POINTS
4.2.1 ENGINE RELATED TERMINATION POINTS
See General Arrangement drawing:- 80-798-00235-000 - Available on request.
ITEM 4.3 SPARE PARTS AND TOOLS
4.3.1 SPARE PARTS
No spare parts have been included.
4.3.2 TOOLS
No running tools have been included.No Fuel Injection tools have been included.
4.3.3 ENGINE LIFTING
No Lifting Equipment will be supplied.
ITEM 4.4 GENERAL SERVICES
4.4.1 WORKSHOP TESTS AND ACCEPTANCE
After preliminary shop tests, each engine will be given an acceptance test to MBDL standard industrial drive testschedule. During the tests, pressures temperatures etc. will be measured and recorded on an engine test sheet.Copies of the test sheet are provided with the contract.Witness of MBDL’s standard engine test by customer. (option)
4.4.2 PAINTING
Paint finish to MAN B&W Diesel Ltd standard.
7/28/2019 MAN&BW
http://slidepdf.com/reader/full/manbw 9/9
4.4.3 PRESERVATION
Standard preservation included as follows:
- Engine run on Shell Oil R3325 combined running-in and temporary corrosion prevention oil.
- Engines run on Shell calibration fluid ‘C’ prior to final shutdown, fuel system sealed.
- Coolant systems drained.
- Sump drained.
- Inside of engine sprayed with Shell Ensis Oil ‘N’.
- External bright or machined surfaces protected with Shell Ensis ‘V’.
- Labels attached - “engine treated with rust preventative and should not be turned over”.
The above preservation is suitable where the engines are being delivered to site immediately after test or if the storageis not going to exceed 12 months after test under dry, indoor storage conditions.
4.4.4 WOODEN TRANSIT CRADLE
The engine will be fixed to a purpose made wooden transit cradle and covered with a polythene sheet.
4.4.5 QUALITY AND INSPECTION
MAN B&W Diesel Ltd engines are designed and manufactured to the highest quality standards meeting the stringent
demands of ISO 9001, BS 5750 and Lloyds Quality Assurance Scheme for Machinery.
All equipment will be inspected to MAN B&W Diesel Ltd own procedures before despatch. Expediting inspections maybe undertaken at various build stages by a Customer Representative.