Selection of Main Mechanical Ventilators for Underground Coal Mines

A Case Study
 
 
Springer (Verlag)
  • erschienen am 13. Mai 2017
  • |
  • XI, 88 Seiten
 
E-Book | PDF mit Wasserzeichen-DRM | Systemvoraussetzungen
978-3-319-56859-1 (ISBN)
 
This book provides information on proper underground mine ventilation in order to detail its importance in maintaining safe, productive, healthy and effective underground environments at all times for employees. The text covers correct design, implementation and maintenance of mine ventilation through suitable fan installation, and keeps in mind the economic requirements of undertaking safe procedures and implementations to ensure that ventilation is optimal.
Through three main goals, the book addresses the need for proper fan ventilation in the potentially hazardous conditions of an underground mine. The first goal is to summarize and update the technical information on the strategic importance of selecting suitable techno-commercial main mechanical ventilators for a coal mine. The second goal is to provide a user friendly computer program to help any practicing engineers, mine operators, regulators and researchers in choosing the main mechanical ventilators. Factors in this selection process include environmental requirements, regulatory conditions, occupational health related issues, and cost. The third goal is to provide applications for computer programs meant to determine proper selection and implementation of the main mechanical ventilators. The text is geared towards teachers, researchers, policy makers, environmental organizations and mine operators who wish to teach about or implement the best possible ventilation systems for the health and safety of mine workers.
1st ed. 2017
  • Englisch
  • Cham
  • |
  • Schweiz
Springer International Publishing
21 farbige Abbildungen
  • 2,12 MB
978-3-319-56859-1 (9783319568591)
10.1007/978-3-319-56859-1
weitere Ausgaben werden ermittelt

Ajay Kumar Jha is working as Vice President and Head of International Centre of Excellence, Mining Technology, EMIL, Aditya Birla group. He also serves as member of commission on rock dynamics, International Society of Rock Mechanics. He has previously worked in Coal India Limited for twenty three years and worked in Indian institute of Technology, Kharagpur for more than one year in Department of Mining Engineering.

His research interest is primarily in Rock Fragmentation, Ventilation, Blasting & Explosive Engineering, Demolition, Implementation of Numerical modeling and Artificial Intelligence Techniques in Mining.

He has published 40 papers, 5 applied research projects funded by Government of India as Project leader and completed work on two books. He serves as an editor for Vistotak journal. He has also been awarded Coal India Technical Excellence in 2012 for his valued contribution to company. He has two patents on his name as key patenter.

  • Intro
  • Preface
  • Acknowledgements
  • Contents
  • Chapter 1: Importance and Characteristics of Main Mechanical Ventilator
  • 1.1 Introduction
  • 1.2 Characteristics of Main Mechanical Ventilator
  • 1.3 Prime Factors for Selection of Main Mechanical Ventilator
  • 1.4 Complexities in Selection of Main Mechanical Ventilator
  • 1.5 Summary of the Chapter
  • References
  • Chapter 2: Ventilation Network Analysis
  • 2.1 Introduction
  • 2.2 Analytical Method
  • 2.3 Numerical Method
  • 2.4 Hardy Cross Method
  • 2.5 Monte Carlo Method
  • 2.6 Ventilation Modeling
  • 2.7 Summary of the Chapter
  • References
  • Chapter 3: Method of Selection of Main Mechanical Ventilator
  • 3.1 Introduction
  • 3.2 An Overview of Technical Considerations
  • 3.3 Precautions to Be Taken During Technical Considerations
  • 3.4 Economic Considerations
  • 3.5 Summary of the Chapter
  • References
  • Chapter 4: Possible Ways for Reducing the Ventilation Cost
  • 4.1 Introduction
  • 4.2 Methods of Reducing the Ventilation Cost
  • 4.2.1 Reducing the Pressure/Head Loss due to Mine Resistance
  • 4.2.2 Selecting a Fan with the Highest Possible Efficiency
  • 4.2.3 Reducing the Gas Amount Using Methane Drainage in Very Gassy Mines
  • 4.2.4 Reducing All Air Leakages to a Minimum
  • 4.2.5 Reducing the Resistance of Mine Shaft
  • 4.3 Flow Control and Energy Saving
  • 4.3.1 Constant Speed of Drive and Fan with Capacity Control by Devices Which Modify the Fan or the System Characteristics
  • 4.3.2 Constant Speed Drive with Provision for Variation of Fan Speed by Auxiliary Intermediate Devices Between the Fan and the Drive
  • 4.3.3 Variable Speed Drive Directly Coupled to the Fan
  • 4.3.4 Deblading
  • 4.3.5 Variable Volume or Variable Geometry Mechanisms
  • 4.3.5.1 Variable Geometry Mechanism
  • 4.3.5.2 Variable Volume Mechanism
  • 4.4 Facilities to Regulate Ventilation in Mechanical Ventilator in Axial Flow Fan
  • 4.4.1 Airfoils
  • 4.4.2 Casing
  • 4.4.3 Collector
  • 4.4.4 Cowl
  • 4.4.5 Diffuser
  • 4.4.6 Blades
  • 4.5 Summary of the Chapter
  • References
  • Chapter 5: Computer Program for Fan Selection
  • 5.1 Introduction
  • 5.2 Algorithm
  • 5.3 User's Guide and Data Handling
  • 5.3.1 Data Files Used by the FAN.EXE Program
  • 5.3.2 Preparing Cost Parameters Data File
  • 5.3.3 Preparing Fan Characteristics Data File
  • 5.3.4 Preparing Efficiency Data File
  • 5.3.5 Preparing Power Data File
  • 5.3.6 Important Note
  • 5.4 Running the Program and Compiling the Program
  • 5.4.1 Compiling the Source
  • 5.5 Limitation of the Program
  • 5.6 Summary of the Chapter
  • References
  • Chapter 6: Application of the Computer Program: An Indian Case Study
  • 6.1 Introduction
  • 6.2 Particulars of Data Files
  • 6.3 Program Output Including Graphical Output
  • 6.4 Interpretation Drawn from Program Output
  • 6.4.1 Discussion on FAN-1
  • 6.4.2 Discussion on FAN-2
  • 6.4.3 Discussion of FAN-3
  • 6.4.4 Discussion of FAN-4
  • 6.4.5 Discussion on FAN-5
  • 6.4.6 Discussion of FAN-6
  • 6.4.7 Discussion on FAN-7
  • 6.4.8 Discussion on FAN-8
  • 6.4.9 Discussion of FAN-9
  • 6.5 Conclusions Drawn from Program Output
  • 6.6 Summary of the Chapter
  • Annexure-I

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