 Evaporative
gas conditioning (EGC) is a process for modifying gas temperature
and humidity. In EGC systems, highly atomized water is introduced
directly into the gas stream.
Benefits
of an EGC System
EGC systems
have proven to be effective in:
- Reducing
gas volume and temperature.
- Reducing
energy cost.
- Reducing
environmental impact.
- Reducing
emissions by reducing dust resistivity.
- Reducing
emissions by increasing dust size (agglomeration).
- Reducing
filter bag costs.
- Increasing
plant flexibility.
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Single
Fluid Systems: VaporfectTM
100 |
In single
fluid systems, water is injected at high pressure inside the EGC
tower. BHA provides high quality lances, nozzles, and controls
for single fluid systems. The characteristics and benefits of
a single fluid system include:
-
Hydraulic
System.
-
Lower
initial cost.
-
No
compressed air required.
-
Adequate
turn-down ratio.
-
Lower
operational cost.
-
No
"wet bottom" with proper tower height and diameter.
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Dual
Fluid Systems: VaporfectTM
200 200 |
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In
dual fluid systems, the water is atomized with compressed air. Atomization
can be accomplished in a tower or in a straight ductwork section.
BHA provides high quality lances, nozzles, and controls for dual
fluid systems.
Some
characteristics and benefits of a dual fluid system include:
- Smaller tower
required.
- No "wet
bottom" or walls.
- Low operating
and maintenance costs.
- Long service
life.
- High efficiency.
- Wide turndown
ratio.
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In-Duct
Humidification System |
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 In
many cases, an EGC System can be installed in a straight section
of duct, thereby eliminating the need for a tower.
The result is an effective dual fluid gas conditioning system in
a compact space. BHA provides the components necessary to create
effective in-duct humidification.
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 This
diagram shows the arrangement of multiple lances, each with several
nozzles can install inside an existing duct section.
Gas stream modification
by an EGC system can benefit particulate collection downstream of
the system.
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