PNEUDRI - Air Energy Management

Modular aluminium designThe award winning PNEUDRI design first introducedby Parker domnick hunter in 1985, replaces thetraditional, large, heavy carbon steel twin toweradsorption dryer and it’s complex valving andinterconnecting piping, with a smaller, more compactand lightweight design.Aluminium extrusions are used throughout for dryingchambers and distribution manifolds. This designallows the desiccant material to be retained within thedrying chambers and when used in conjunction withthe unique snowstorm filling technique, preventsmovement of the desiccant material during operationand all but eliminates desiccant attrition andbreakdown which leads to loss of pressure dewpoint.PNEUDRI MX DryersAdsorbent fill method -snowstorm fillingUnique to Parker domnick hunter modular dryers isthe snowstorm filling technique used to charge thedrying chambers with adsorbent desiccant material.The benefits of the snowstorm filling techniqueinclude:Maximum Packing Density• Achieves maximum packing density for thedesiccant material, fully utilising all of theavailable space envelopeLoose filled bedSnowstorm filled bed• Prevents channelling of air through thedesiccant as seen on traditional twin towerdesigns. Due to channelling, twin towerdesigns require more desiccant to achievean identical dewpoint, increasing physicalsize, operational and maintenance costs• Prevents desiccant attrition which canlead to dusting, blocked filters and lossof dewpointInconsistent drying anddesiccant attritionConsistent drying withno desiccant attrition• Allows 100% of the available desiccantmaterial to be used for drying, thereforereducing the amount of desiccant requiredand maintenance costs• 100% of the desiccant is regeneratedensuring consistent dewpoint• Provides a low, equal resistance to air flowallowing multiple drying chambers andmultiple dryer banks to be used, a featureonly available with PNEUDRIInconsistent RegenerationConsistent Regeneration• Ensures continuous dewpoint performance6