NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.63 [2004] >
JSIR Vol.63(03) [March 2004] >


Title: Microprocessor based dynamic pressure neutralization system for control of fire in sealed-off area in underground coal mines
Authors: Ray, S K
Bandopadhyay, L K
Sahay, N
Singh, R P
Ahamad, I
Bhowmick, B C
Keywords: Mine fires
Sealed-off area
Pressure balancing technique
Differential pressure sensor
Stepper motor
Issue Date: Mar-2004
Publisher: CSIR
IPC CodeInt Cl.7: E 21 F 5/00
Abstract:  The technique of pressure balancing to combat/control underground coal mine fires is universally accepted. The technique is used in many coal mines in India and results are encouraging. However, presently adopted manual pressure balancing technique is a tedious process and sometimes calls for expert attention over a long period. To overcome these difficulties a microprocessor based automatic pressure neutralization device eliminating the need for continuous human attention is proposed. The detailed functions of the proposed device, control logic, and its flow chart are highlighted. The theory of pressure balancing technique and limitations of the manual system of pressure balancing technique are also dealt with. The salient features of the device and its placement in the mine are illustrated with suitable schematic diagram. Advantages of the system and necessary precautions to be taken while fabricating the same are also outlined. The program logic of the proposed device is illustrated in the form of a flow chart.
Page(s): 297-304
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.63(03) [March 2004]

Files in This Item:

File Description SizeFormat
JSIR 63(3) 297-304.pdf186.04 kBAdobe PDFView/Open
 Current Page Visits: 716 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 603378 since 06-Feb-2009  Last updated on 21-Oct-2014Webmaster: nopr@niscair.res.in