Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Ultrasonic atomisers for reducing pollution from petrol engines

Tools
- Tools
+ Tools

Almås, Terje (1975) Ultrasonic atomisers for reducing pollution from petrol engines. PhD thesis, University of Warwick.

[img]
Preview
PDF
WRAP_Theses_Almås_1975.pdf - Unspecified Version - Requires a PDF viewer.

Download (12Mb) | Preview
Official URL: http://webcat.warwick.ac.uk/record=b1747153~S15

Request Changes to record.

Abstract

This thesis opens with a review of present knowledge about pollution from internal combustion engine exhaust, covering the formation of pollutants in the engine, some of the effects of emission on man, and the influence of various engine parameters on exhaust emission. The thesis describes the development and application of ultrasonic atomisers operating at approximately 100 kHz, the investigation of the formation of droplets in a liquid layer on a vibrating surface and the measurement of droplet size using liquid wax and microphotography.

Chapter 4.3 presents the results of calculations of eigenvalues and vibration amplitudes in an ultrasonic atomiser, using a three dimensional finite element programme.

Chapter 6.2 and 6.3 describes experiments on a two-stroke and a four-stroke engine which demonstrate the improvement in engine emissions which can be achieved using ultrasonic atomisers, particularly at low load.

Experiments were carried out with ultrasonic atomisers mounted in a novel carburettor unit, and the result were compared with the engine performance using a normal carburettor. A special manifold intended to achieve the best possible utilisation of the atomiser was designed and tested.

Item Type: Thesis or Dissertation (PhD)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TL Motor vehicles. Aeronautics. Astronautics
T Technology > TP Chemical technology
Library of Congress Subject Headings (LCSH): Atomizers, Ultrasonic equipment, Pollution control equipment, Automobiles -- Motors -- Pollution control devices, Petroleum products -- Environmental aspects
Official Date: November 1975
Dates:
DateEvent
November 1975Submitted
Institution: University of Warwick
Theses Department: Department of Engineering
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Johnson, P. W. M. ; Alty, C. J. N.
Sponsors: Norges teknisk-naturvitenskapelige forskningsråd ; British Council
Extent: xii, 194 leaves : illustrations, charts
Language: eng

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us