Engine tests for prediction method: Single and dual fuel tests with the medium speed engine

Research output: Book/ReportReport

Abstract

Single and dual fuels were tested with VTT's medium speed engine. There were various engine configurations during these tests. With some single fuels, the found challenges were in filtering / pre-treatment of the product, wear of fuel injection components, and engine performance at low loads. Viscosity of certain products caused problems. Also, bad odour and low flash point of some products caused some difficulties on handling. For dual fuel tests, Wärtsilä GD injection system was build and modified to accept liquid fuels as main fuel. Several different configurations / modifications were tested to enhance the performance on injection system with different fuels. For example, five modified GD injector nozzle tips were manufactured. The selected fuels for dual fuel tests have, for example, poor self ignition characteristics, high vapour pressure, low viscosity, and poor lubricity. Therefore, these fuels cannot be used with conventional diesel fuel injection system. Injected via modified GD injection system, some fuels proved to be very promising fuel for medium speed engine.
Original languageEnglish
PublisherCLEEN Cluster for Energy and Environment
Number of pages22
ISBN (Print)978-952-5947-50-2
Publication statusPublished - 2014
MoE publication typeD4 Published development or research report or study

Fingerprint

Engines
Fuel injection
Viscosity
Fuel systems
Liquid fuels
Odors
Diesel fuels
Vapor pressure
Ignition
Nozzles
Wear of materials

Keywords

  • medium speed engine
  • alternative fuel
  • biofuel

Cite this

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title = "Engine tests for prediction method: Single and dual fuel tests with the medium speed engine",
abstract = "Single and dual fuels were tested with VTT's medium speed engine. There were various engine configurations during these tests. With some single fuels, the found challenges were in filtering / pre-treatment of the product, wear of fuel injection components, and engine performance at low loads. Viscosity of certain products caused problems. Also, bad odour and low flash point of some products caused some difficulties on handling. For dual fuel tests, W{\"a}rtsil{\"a} GD injection system was build and modified to accept liquid fuels as main fuel. Several different configurations / modifications were tested to enhance the performance on injection system with different fuels. For example, five modified GD injector nozzle tips were manufactured. The selected fuels for dual fuel tests have, for example, poor self ignition characteristics, high vapour pressure, low viscosity, and poor lubricity. Therefore, these fuels cannot be used with conventional diesel fuel injection system. Injected via modified GD injection system, some fuels proved to be very promising fuel for medium speed engine.",
keywords = "medium speed engine, alternative fuel, biofuel",
author = "Sami Nyyss{\"o}nen",
note = "Project code: 41979",
year = "2014",
language = "English",
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publisher = "CLEEN Cluster for Energy and Environment",

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Engine tests for prediction method : Single and dual fuel tests with the medium speed engine. / Nyyssönen, Sami.

CLEEN Cluster for Energy and Environment, 2014. 22 p.

Research output: Book/ReportReport

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T2 - Single and dual fuel tests with the medium speed engine

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AB - Single and dual fuels were tested with VTT's medium speed engine. There were various engine configurations during these tests. With some single fuels, the found challenges were in filtering / pre-treatment of the product, wear of fuel injection components, and engine performance at low loads. Viscosity of certain products caused problems. Also, bad odour and low flash point of some products caused some difficulties on handling. For dual fuel tests, Wärtsilä GD injection system was build and modified to accept liquid fuels as main fuel. Several different configurations / modifications were tested to enhance the performance on injection system with different fuels. For example, five modified GD injector nozzle tips were manufactured. The selected fuels for dual fuel tests have, for example, poor self ignition characteristics, high vapour pressure, low viscosity, and poor lubricity. Therefore, these fuels cannot be used with conventional diesel fuel injection system. Injected via modified GD injection system, some fuels proved to be very promising fuel for medium speed engine.

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KW - biofuel

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