Training/Presentation

A Scientific Review of Dust Collection – The Real Dirt on Dust (Third Edition)

This publication is widely regarded as one of the most comprehensive freely available books dedicated solely to industrial dust collection engineering. LEVCentral Expert Commentary Dust collection is far more than selecting a filter or installing a fan. Effective systems require …

Basic LEV Maths – Fan Laws

A Simple Introduction to One of the Most Important Mathematical Principles in LEV   LEVCentral Expert Commentary One subject that many new LEV engineers find intimidating is fan laws. Yet they are amongst the simplest—and most useful—mathematical relationships used in …

Fletcher’s Nomogram for LEV Design

The Slide Rule of LEV Engineering Before Computers, Apps and Spreadsheets   LEVCentral Expert Commentary Before spreadsheets, mobile apps and computer-based duct design software became commonplace, LEV engineers relied on a remarkable graphical calculation tool known simply as Fletcher’s Nomogram. …

The Moody Diagram

An Important Chart in Fluid Mechanics and LEV Design   LEVCentral Expert Commentary If Fletcher’s Nomogram was the traditional graphical calculator for duct pressure losses, then the Moody Diagram is the chart that makes those calculations possible. The Moody Diagram …

USA-EPA – LESSON 6 – Electrostatic Precipitators (ESP) – Operation and Maintenance

LEVCentral Expert Commentary Electrostatic Precipitators (ESPs) are widely used throughout industry for the collection of fine particulate, smoke, fumes and oil mist. Unlike mechanical filtration systems, ESPs use high-voltage electrical fields to charge airborne particles before collecting them on grounded …

USA-EPA – LESSON 5 Industrial Applications of Electrostatic Precipitators (ESP)

LEVCentral Expert Commentary Electrostatic Precipitators (ESPs) are among the most versatile particulate control technologies used in heavy industry. Their ability to remove extremely fine dust, smoke, fumes and mists with very high efficiency and minimal pressure loss has resulted in …

Videos – Dust Explosions in Filters (collection)

Real-World Demonstrations of Dust Collector Explosions and Explosion Protection   LEVCentral Expert Commentary There is no better way to appreciate the destructive force of a combustible dust explosion than by seeing one occur. This collection of four short videos brings …

USA-EPA – LESSON 4 Fabric Filter Material

LEVCentral Expert Commentary The performance of a fabric filter depends not only on the baghouse design, but also on the characteristics of the filter media itself. Selecting the correct fabric requires consideration of operating temperature, dust characteristics, chemical resistance, abrasion, …

BOHS M505 Student Manual – Control of Hazardous Substances

LEVCentral Expert Commentary The BOHS M505 – Control of Hazardous Substances module is one of the core qualifications within the BOHS Certificate of Operational Competence in Occupational Hygiene (CertOH). It introduces the principles of controlling occupational exposure to hazardous substances …

USA-EPA – LESSON 3 ESP Design Parameters and Their Effects on Collection Efficiency

LEVCentral Expert Commentary Electrostatic Precipitators (ESPs) are capable of achieving collection efficiencies in excess of 99%, but this level of performance is only possible when the precipitator has been correctly designed for its specific application. This EPA training lesson examines …