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Wärtsilä 32 product guide - 208 Pages

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Catalogue excerpts

WÄRTSILÄ 32 – PRODUCT GUIDE WÄRTSILÄ 32 PRODUCT GUIDE

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Wärtsilä 32 - Product Guide Introduction Introduction This Product Guide provides data and system proposals for the early design phase of marine engine installations. For contracted projects specific instructions for planning the installation are always delivered. Any data and information herein is subject to revision without notice. This 1/2013 issue replaces all previous issues of the Wärtsilä 32 Project Guides. Issue Product Guide Attachments updated (InfoBoard version). Other minor updates. Product Guide Attachments updated (InfoBoard version). Chapters Compressed Air System and Exhaust Gas...

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Wärtsilä 32 - Product Guide Table of Contents

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Wärtsilä 32 - Product Guide Table of Contents 9.3

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Wärtsilä 32 - Product Guide Table of Contents 21.2

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Wärtsilä 32 - Product Guide 1. Main Data and Outputs Maximum continuous output Table 1.1 Rating table for Wärtsilä 32 Cylinder configuration Main engines Generating sets The mean effective pressure Pe can be calculated as follows: where: Pe = mean effective pressure [bar] P = output per cylinder [kW] n = engine speed [r/min] D = cylinder diameter [mm] L = length of piston stroke [mm] c = operating cycle (4)

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Wärtsilä 32 - Product Guide 1. Main Data and Outputs Reference conditions The output is available up to a charge air coolant temperature of max. 38°C and an air temperature of max. 45°C. For higher temperatures, the output has to be reduced according to the formula stated in ISO 30461:2002 (E). The specific fuel oil consumption is stated in the chapter Technical data. The stated specific fuel oil consumption applies to engines without engine driven pumps, operating in ambient conditions according to ISO 15550:2002 (E). The ISO standard reference conditions are: total barometric pressure relative...

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Wärtsilä 32 - Product Guide 1. Main Data and Outputs 1.4.1 Main engines Figure 1.1 In-line engines (DAAE030112) * Turbocharger at flywheel end. All dimensions in mm. Weight in metric tons with liquids (wet sump) but without flywheel.

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Wärtsilä 32 - Product Guide 1. Main Data and Outputs * Turbocharger at flywheel end. All dimensions in mm. Weight in metric tons with liquids (wet sump) but without flywheel.

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Wärtsilä 32 - Product Guide 1. Main Data and Outputs 1.4.2 Generating sets Figure 1.3 In-line engines (DAAE030093) * Actual dimensions might vary based on power output and turbocharger maker. Figure 1.4 V-engines (DAAE039700) * Actual dimensions might vary based on power output and turbocharger maker. Engine ** Dependent on generator and flexible coupling. All dimensions in mm. Weight in metric tons with liquids.

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Wärtsilä 32 - Product Guide 2. Operating Ranges Operating Ranges Engine operating range Below nominal speed the load must be limited according to the diagrams in this chapter in order to maintain engine operating parameters within acceptable limits. Operation in the shaded area is permitted only temporarily during transients. Minimum speed is indicated in the diagram, but project specific limitations may apply. 2.1.1 Controllable pitch propellers An automatic load control system is required to protect the engine from overload. The load control reduces the propeller pitch automatically, when a...

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Wärtsilä 32 - Product Guide 2. Operating Ranges Figure 2.2 Operating field for CP Propeller, 580 kW/cyl, 750 rpm 2.1.2 Fixed pitch propellers The thrust and power absorption of a given fixed pitch propeller is determined by the relation between ship speed and propeller revolution speed. The power absorption during acceleration, manoeuvring or towing is considerably higher than during free sailing for the same revolution speed. Increased ship resistance, for reason or another, reduces the ship speed, which increases the power absorption of the propeller over the whole operating range. Loading conditions,...

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Wärtsilä 32 - Product Guide 2. Operating Ranges Figure 2.3 Operating field for FP Propeller, 500 kW/cyl), 750 rpm 2.1.3 Dredgers Mechanically driven dredging pumps typically require a capability to operate with full torque down to 70% or 80% of nominal engine speed. This requirement results in significant de-rating of the engine. Loading capacity Controlled load increase is essential for highly supercharged diesel engines, because the turbocharger needs time to accelerate before it can deliver the required amount of air. A slower loading ramp than the maximum capability of the engine permits a...

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Wärtsilä 32 - Product Guide 2. Operating Ranges 2.2.1 Mechanical propulsion Figure 2.4 Maximum recommended load increase rates for variable speed engines The propulsion control must include automatic limitation of the load increase rate. If the control system has only one load increase ramp, then the ramp for a preheated engine should be used. In tug applications the engines have usually reached normal operating temperature before the tug starts assisting. The “emergency” curve is close to the maximum capability of the engine. If minimum smoke during load increase is a major priority, slower loading...

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Wärtsilä 32 - Product Guide 2. Operating Ranges In diesel electric installations loading ramps are implemented both in the propulsion control and in the power management system, or in the engine speed control in case isochronous load sharing is applied. If a ramp without knee-point is used, it should not achieve 100% load in shorter time than the ramp in the figure. When the load sharing is based on speed droop, the load increase rate of a recently connected generator is the sum of the load transfer performed by the power management system and the load increase performed by the propulsion control....

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Wärtsilä 32 - Product Guide 2. Operating Ranges Operation below 20 % load on HFO or below 10 % load on MDF • Maximum 100 hours continuous operation. At intervals of 100 operating hours the engine must be loaded to minimum 70 % of the rated output. Operation above 20 % load on HFO or above 10 % load on MDF • Low air temperature In cold conditions the following minimum inlet air temperatures apply: • If the engine is equipped with a two-stage charge air cooler, sustained operation between 0 and 40% load can require special provisions in cold conditions to prevent too low engine temperature. For...

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