NDLI: A pulsed magnetohydrodynamic generator for electric launcher

Content Provider	IEEE Xplore Digital Library
Author	Wang Ying Duan Xiaojun Yan Ping Xue Haizhong Li Qiang
Copyright Year	1965
Abstract	An invention scheme of pulsed magnetohydrodynamic generator (PMHDG) in milliseconds order of magnitude that can be used directly in electric launchers is presented for the first time. It is either different from ordinary small power dc MHD generators for power plants, or different from explosive MHD generators where its pulsed current width is in the microseconds order of magnitude. Operating principle of the PMHDG is as follows: fuels or oxidizing agents within two storage vessels are injected into a combustion chamber to combust by a pump and a valve, after waiting for the pressure (or density) of generated conductive electric MHD ascends some threshold value, a self-controlled valve in combustion chamber throat is opened automatically. As a result, conductive electric MHD passes into a generating channel in pulse to generate electric current. Obviously, by controlling the amount of the working substance entering into the combustion chamber with the injector valve, and adapting the spring pressure of the self-controlled valve, we can control the pulsewidth and obtain different values of high power to be used directly by the electric launcher. Besides, this paper gives a theory-mathematical model in which some characteristics of the generator were expressed. This helps us to understand the relationship between various physical quantities about the generator, and provides a basis to research their mutual influences. In addition, in physical design of the circuit, we adopted a proper high energy density capacitor as auxiliary energy storage. On one hand, the generator can realize the self-excited generation by using the capacitor; on the other hand, the high energy capacitor is charged directly by the generator and energy stored within the capacitor is realized, so as to form a generator-capacitor combined high power pulsed power supply that can be used by high energy electric launchers.
Sponsorship	IEEE Magnetics Society
Starting Page	334
Ending Page	337
Page Count	4
File Size	119375
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetohydrodynamic power generation Pulse generation Power generation Valves Capacitors Combustion Space vector pulse width modulation Automatic control Pressure control Pulsed power supplies self-excitation Combined power supply of the MHDG-capacitor controlling valve PMHDG
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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