Naval Postgraduate School
Dudley Knox Library
NPS Dudley Knox Library
View Item 
  •   Calhoun Home
  • Theses and Dissertations
  • 1. Thesis and Dissertation Collection, all items
  • View Item
  •   Calhoun Home
  • Theses and Dissertations
  • 1. Thesis and Dissertation Collection, all items
  • View Item
  • How to search in Calhoun
  • My Accounts
  • Ask a Librarian
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse

All of CalhounCollectionsThis Collection

My Account

LoginRegister

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

Surface ignition in a steady-flow apparatus

Thumbnail
Download
Iconsurfaceignitioni00kemp.pdf (3.454Mb)
Download Record
Download to EndNote/RefMan (RIS)
Download to BibTex
Author
Kempf, Cecil J.
Wosser, Joseph L.
Date
1957-06
Metadata
Show full item record
Abstract
An experimental study is made of the temperature of a hot surface required to ignite ethanol-air mixtures of different fuel-air ratios in steady flow. The mixture at a controlled free-stream velocity, density and temperature flows over a four-inch heated surface in the test section. Temperature of the surface is increased slowly until ignition occurs. The effect on ignition temperature of varying fuelair ratio is determined at velocities of 35 and 50 ft per sec. The free-stream density and temperature were held constant at 0.0575 lhs per cu ft. and 634°R respectively. In addition,the variation of ignition temperature with the parameter V/poL was investigated for the stoichiometric fuel-air ratio. The results reveal that, at a mixture density of 0.0575 lbs per cu ft., the minimum temperature required for ignition remains essentially constant at fuel-air ratios near the stoich-iometric value. For a free- stream velocity of 35 ft per sec,the temperature required is approximately 2l|25°R from 0.73 to 1.65 times the stoichiometric fuel-air ratio. When operating at 50 ft per sec, the temperature required is approximately 2470°R over a smaller range of 0.77 to 1.32 times the stoichiometric fuel-air ratio. In both cases the temperature increases sharply as fuel-air ratios fall below the lower end of the constant range, and gradually increase as they go above the higher end. It is verified that surface temperature required for ignition plotted versus V/poL is a concave downward curve of positive slope. Lower temperatures than previously reported at the same values of V/poL were obtained. The results of these previous studies, where nozzle temperature was maintained at approximately 580°R, were reproduced.
URI
http://hdl.handle.net/10945/36000
Collections
  • 1. Thesis and Dissertation Collection, all items

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Reactive shear layer mixing and growth rate effects on afterburning properties for axisymetric rocket engine plumes 

    Hartsfield, Carl Rex. (Monterey, California.: Naval Postgraduate School, 2006., 2006-09);
    A semi-empirical model was developed for predicting the after burning ignition location of film cooled rocket engines. The model is based on two characteristic distances, the distance required for turbulent mixing to ...
  • Thumbnail

    Ignition characteristics for transient plasma ignition of ethylene/air and JP-10/air mixtures in a Pulse Detonation Engine 

    Hackard, Charles N. (Monterey California. Naval Postgraduate School, 2007-12);
    The inlet mass flow, fuel injection profile, igniter characteristics, ignition delay, and operational frequency all dictate the success of a Pulse Detonation Engine (PDE). An optical sensor was developed and utilized for ...
  • Thumbnail

    The ignition transient in small solid propellant rocket motors of practical configuration 

    Lukenas, Leo Allen (Princeton, New Jersey; Princeton University, 1967);
    An understanding of the ignition transient of a solid propellant rocket motor becomes increasingly more important as larger and more sophisticated solid propellant rocket motors are developed. Cost considerations alone ...
NPS Dudley Knox LibraryDUDLEY KNOX LIBRARY
Feedback

411 Dyer Rd. Bldg. 339
Monterey, CA 93943
circdesk@nps.edu
(831) 656-2947
DSN 756-2947

    Federal Depository Library      


Start Your Research

Research Guides
Academic Writing
Ask a Librarian
Copyright at NPS
Graduate Writing Center
How to Cite
Library Liaisons
Research Tools
Thesis Processing Office

Find & Download

Databases List
Articles, Books & More
NPS Theses
NPS Faculty Publications: Calhoun
Journal Titles
Course Reserves

Use the Library

My Accounts
Request Article or Book
Borrow, Renew, Return
Tech Help
Remote Access
Workshops & Tours

For Faculty & Researchers
For International Students
For Alumni

Print, Copy, Scan, Fax
Rooms & Study Spaces
Floor Map
Computers & Software
Adapters, Lockers & More

Collections

NPS Archive: Calhoun
Restricted Resources
Special Collections & Archives
Federal Depository
Homeland Security Digital Library

About

Hours
Library Staff
About Us
Special Exhibits
Policies
Our Affiliates
Visit Us

NPS-Licensed Resources—Terms & Conditions
Copyright Notice

Naval Postgraduate School

Naval Postgraduate School
1 University Circle, Monterey, CA 93943
Driving Directions | Campus Map

This is an official U.S. Navy Website |  Please read our Privacy Policy Notice  |  FOIA |  Section 508 |  No FEAR Act |  Whistleblower Protection |  Copyright and Accessibility |  Contact Webmaster

Export search results

The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

A logged-in user can export up to 15000 items. If you're not logged in, you can export no more than 500 items.

To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.