Appropriately enough, a good variable airflow design accommodates and refines a number of design variables. Particle monitoring strategies, minimum supply air calculation, HVAC sequencing, and space pressurization are just a few stops on the way to spotless performance.
motor-driven vapor compression chillers are much more energy
efficient than absorption chillers, then why are we even having this
conversation? In a hunt for LEED® points or in applications with
certain demands, absorption could be just the ticket to
sustainability and/or economy.
OK, so “easy” may not be a word that comes to mind for designing such
sensitive environments. However, that doesn’t mean you can’t produce a
solid cleanroom design by tackling issues in a logical sequence. This
article covers each key step, down to handy application-specific tips
for adjusting load calculations, planning exfiltration paths, and
angling for adequate mechanical room space relative to the cleanroom’s
In addition to serving as a handy reference on the various
dehumidification technologies and their profiles, this article uses a
manufacturing scenario to explore load-related questions and other design
pitfalls. Will human occupancy make much of a difference? What valves does your
humidifier have? And exactly what’s in that room, anyway?
A few circumstances in a data center make it ripe for a CHP design to boost efficiency. Let’s get into the options within both relevant chiller types, why payback may be shorter than expected, and the assorted potential benefits from lower costs to higher reliability. Some tips from an array of manufacturers’ reps round out this useful investigation.