Wärtsilä Vasa is an engine series built by Finnish diesel engine manufacturer Wärtsilä. It was released in 1977 and remained in production until 2010. These medium speed diesels were produced in and named after Vasa, Finland. The lead designer of the first engine was Wilmer Wahlstedt.[1] The series comprises three models, the Vasa 22, 32, and 46, with the number denoting the bore size of the engine.[1]
Wärtsilä discontinued production of the series in 2010 to focus on newer technology. The Vasa series acted as a precursor to the newer 32 D and E series which have a higher power output.
The engines were designed for both shipboard and power plant applications. The engine could be ordered with a 220, 320, and 460 mm bore in both V and inline configurations. The inline style was available with up to 9 cylinders and V could support up to 18. The VASA32LN engine was redesigned with a longer stroke to increase horsepower.
Vasa engines are turbocharged, non-reversible, and utilize a direct fuel injection system. They were designed to continuously run on heavy fuel oil (HFO), provided that the fuel is pre-heated and at the correct viscosity at the time of injection.[1]
Model
375 kW/cyl
bhp
410 kW/cyl
bhp
4R32LN
1500
2040
1640
2230
6R32LN
2250
3060
2460
3340
8R32LN
3000
4080
3280
4460
9R32LN
3375
4590
3690
5020
12V32LN
4500
6120
4920
6690
16V32LN
6000
8160
6560
8920
18V32LN
6750
9170
7380
10030
This is the power rating table generated for the Vasa 32LN engine. Engine power ratings are determined by how the engine is being used. The Vasa engines offer 375 kW/cyl and 410 kW/cyl. As the number of cylinders increase, the power increases. The size of the engine depends on the application it is being used for.[1]
Lubricationedit
Vasa engines utilize a circulating oil system for lubrication, complete with a main, pre-lubricating pump, and an oil cooler. Smaller Vasa engines use gear type pumps for lubrication where the larger engines use wheel type pumps.[3]
Starting mechanismedit
Air is utilized to start the engines.[4] Each cylinder head is equipped with a start air valve that delivers high-pressure air to the cylinder upon startup. This provides the engine the initial rotation force needed to achieve combustion.
Fresh water coolingedit
Treated fresh water is used for cooling of the cylinder, charge air, turbocharger, and oil. Freshwater cooling is divided into two systems the HT (High Temperature) cooling the cylinders and turbocharger and the LT (Low Temperature) cooling the oil and charge air. The freshwater temperature is closely regulated with a thermostatic valve to achieve optimum efficiency. At low engine loads, the charge can be too cold, which can cause incomplete combustion. To counteract this heat rejected to the lubrication oil can be used to heat the freshwater, which in turn heats the charge air enough to ensure complete combustion.[4][clarification needed]
Control systemsedit
Vasa engines can start remotely away from the engine or manually by manipulating the valves on the start air system. Upon startup engine speed is controlled by a governor, which mechanically adjusts fuel delivery to match the load demanded of the engine.[4]
Conditions are also in place to protect the engine. During operation, an engine will automatically cease injection if all preset conditions are not met.[3]
Applicationsedit
These engines are primarily used for power generation and diesel-electric propulsion plants. Since they are non-reversible, they are not widely used as propulsion engines. The engines were used to provide electrical power for both propulsion and auxiliary services. Due to their ability to run on heavy fuel oil (HFO) or MDO (Marine Diesel Oil), many ships were equipped with the Vasa series engines.
In the power generation industry, these engines are used as auxiliary generators or as backup power generators.[5]
^ abcDescription of Engine, Technical Data. (2010). In Wärtsilä Engines: 32 product guide (2nd ed., Vol. 1, pp. 40 - 46). Vaasa: Wärtsilä.
^"Mistral-photo16" by Jean-Michel Roche - [1]. Licensed under CC BY-SA 3.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:Mistral-photo16.jpg#/media/File:Mistral-photo16.jpg
^ abKapulainen, M., Ronkainen, H., Hokkanen, A., Stuns, I., Varjus, S., Nyyssönen, S., . . . Halme, J. (2014). Fibre Optic Sensors for Long-Term Monitoring of Oil Film Pressure in Diesel Engine Main Bearing. Tribology Letters, 56(1), 47-54.
wärtsilä, vasa, engine, series, built, finnish, diesel, engine, manufacturer, wärtsilä, released, 1977, remained, production, until, 2010, these, medium, speed, diesels, were, produced, named, after, vasa, finland, lead, designer, first, engine, wilmer, wahlst. Wartsila Vasa is an engine series built by Finnish diesel engine manufacturer Wartsila It was released in 1977 and remained in production until 2010 These medium speed diesels were produced in and named after Vasa Finland The lead designer of the first engine was Wilmer Wahlstedt 1 The series comprises three models the Vasa 22 32 and 46 with the number denoting the bore size of the engine 1 Wartsila discontinued production of the series in 2010 to focus on newer technology The Vasa series acted as a precursor to the newer 32 D and E series which have a higher power output Two Vasa 32 engines used in a ship s engine room 2 Contents 1 Models 1 1 Technical data 1 1 1 Lubrication 1 1 2 Starting mechanism 1 1 3 Fresh water cooling 1 1 4 Control systems 1 2 Applications 2 See also 3 ReferencesModels editVasa 14 W16 Wartsila Vasa 20 Wartsila Vasa 22 Vasa 24 Wartsila Vasa 26 Wartsila Vasa 32 Wartsila Vasa 46 Technical data edit The engines were designed for both shipboard and power plant applications The engine could be ordered with a 220 320 and 460 mm bore in both V and inline configurations The inline style was available with up to 9 cylinders and V could support up to 18 The VASA32LN engine was redesigned with a longer stroke to increase horsepower Vasa engines are turbocharged non reversible and utilize a direct fuel injection system They were designed to continuously run on heavy fuel oil HFO provided that the fuel is pre heated and at the correct viscosity at the time of injection 1 Model 375 kW cyl bhp 410 kW cyl bhp 4R32LN 1500 2040 1640 2230 6R32LN 2250 3060 2460 3340 8R32LN 3000 4080 3280 4460 9R32LN 3375 4590 3690 5020 12V32LN 4500 6120 4920 6690 16V32LN 6000 8160 6560 8920 18V32LN 6750 9170 7380 10030This is the power rating table generated for the Vasa 32LN engine Engine power ratings are determined by how the engine is being used The Vasa engines offer 375 kW cyl and 410 kW cyl As the number of cylinders increase the power increases The size of the engine depends on the application it is being used for 1 Lubrication edit Vasa engines utilize a circulating oil system for lubrication complete with a main pre lubricating pump and an oil cooler Smaller Vasa engines use gear type pumps for lubrication where the larger engines use wheel type pumps 3 Starting mechanism edit Air is utilized to start the engines 4 Each cylinder head is equipped with a start air valve that delivers high pressure air to the cylinder upon startup This provides the engine the initial rotation force needed to achieve combustion Fresh water cooling edit Treated fresh water is used for cooling of the cylinder charge air turbocharger and oil Freshwater cooling is divided into two systems the HT High Temperature cooling the cylinders and turbocharger and the LT Low Temperature cooling the oil and charge air The freshwater temperature is closely regulated with a thermostatic valve to achieve optimum efficiency At low engine loads the charge can be too cold which can cause incomplete combustion To counteract this heat rejected to the lubrication oil can be used to heat the freshwater which in turn heats the charge air enough to ensure complete combustion 4 clarification needed Control systems edit Vasa engines can start remotely away from the engine or manually by manipulating the valves on the start air system Upon startup engine speed is controlled by a governor which mechanically adjusts fuel delivery to match the load demanded of the engine 4 Conditions are also in place to protect the engine During operation an engine will automatically cease injection if all preset conditions are not met 3 Applications edit These engines are primarily used for power generation and diesel electric propulsion plants Since they are non reversible they are not widely used as propulsion engines The engines were used to provide electrical power for both propulsion and auxiliary services Due to their ability to run on heavy fuel oil HFO or MDO Marine Diesel Oil many ships were equipped with the Vasa series engines In the power generation industry these engines are used as auxiliary generators or as backup power generators 5 See also editWickstromReferences edit a b c Description of Engine Technical Data 2010 In Wartsila Engines 32 product guide 2nd ed Vol 1 pp 40 46 Vaasa Wartsila Mistral photo16 by Jean Michel Roche 1 Licensed under CC BY SA 3 0 via Wikimedia Commons https commons wikimedia org wiki File Mistral photo16 jpg media File Mistral photo16 jpg a b Kapulainen M Ronkainen H Hokkanen A Stuns I Varjus S Nyyssonen S Halme J 2014 Fibre Optic Sensors for Long Term Monitoring of Oil Film Pressure in Diesel Engine Main Bearing Tribology Letters 56 1 47 54 a b c Wartsila Vasa 32 Project guide for marine applications 2nd ed Vol 1997 1989 Vaasa Diesel McNeely M 2003 Reliable Island Power from Wartsila Diesel and Gas Turbine Worldwide 35 8 10 12 nbsp This article related to shipbuilding is a stub You can help Wikipedia by expanding it vte nbsp This Finland related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Wartsila Vasa amp oldid 1199678957, wikipedia, wiki, book, books, library,