Considerations in the Selection of
Vapor Delivery Sub-Systems
THOMAS A. KARLICEK & DAVID H. LEE
This article examines the three most common types of vapor delivery sub-systems
and explains their basic theory of operation and typical hardware configuration..
Monitoring Methane in Landfills
As methane is generated from a landfill to power five engine-driven generators from
generate electricity, “electronic canaries” monitor the engines and control room.
Miniature Proportional Solenoid Valves: A “Hot” Topic
An overview of valve choices regarding orifice sizes and flow capability, how to
evaluate and determine valve flow, and design features that promote consistent flow
TDL Technology Promises Improved Process Control
in Gas Plants
Ultra-fast and highly accurate, a new Tunable Diode Laser analyzer technology is
replacing conventional sensors at refineries and gas processors, saving on mainte-
nance while providing enhanced control over process integrity
Executive Views: Vacuum Pumps and Their Application
An exclusive interview with James Pumfrey in a discussion of the wide array of
vacuum pump technology and their application
On the Cover: Cover photo courtesy Sensor Electronics:
A sensitive sensor stands guard in the
blower/filter cooler room processing methane
vacuumed from landfill wells a block away.
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