Technical Information - Petropoulos

1 Technical InformationFull Load PerformanceFull Load SelectorThe chart to the left represents the full load flowfor a nirvana compressoracross the full pressure spectrum ExampleIn this example, the peakdemand side usage is m3/min. Reading barg line up the chartuntil it crosses m3/minshows that a 75 kW Nirvanais needed to achieve peakdemand Load ScenarioThe chart to the right represents an estimatedpercent of capacity at partial loads for any of theNirvana compressorsselected continue the example above:The average demand sideload is only 70% for a 75 kW nirvana . Reading70% load up to the intersection shows thatNirvana would be at 70%capacity and 71% of itsavailable kW vs. 80% for astandard rotary Load Turndown DataPart Load Capacity ConfiguratorAverage % LoadAverage % Capacity / kWAverage % CapacityAverage % kW10 0908070605040302010001020304050607080901 00 nirvana Full Load Performance1412161086445 67 Pressure (barg)Flow (m3/min)891075 kW55 kW45 kW37 kW37 kWNirvana45 kWNirvana55 kWNirvana75 kWNirvana5101520253035kW Saved404550556065(kW Saved) x (Hours of Operation)(cost/kW - hr)System Efficiencycost/Year=Performance EfficiencyEnergy Savings EstimatorThe bar graph to the leftrepresents the kilowattssaved across the full operational range of aNirvana compressor whencompared to a rotaryscrew air compressoroperating in finish the example:The green bar illustrates a75 kW nirvana .

2 At 70%load, the nirvana will save30 kW. Use the formula at the top of the graph to calculate the yearlyenergy kWL(cm)H(cm)W(cm)Weight(kg)Cooling Air Flow (m3/min)Discharge (BSP) and DimensionsMore than air. SOLUTIONS: SolutionsIngersoll-Rand European Sales LimitedSwan LaneHindley GreenWigan WN2 4EZ, UKTel:+44 (0) 1942 257171 Fax:+44 (0) 1942 254162 Ingersoll-Rand compressors are not designed, intended, or approved for breathing air applications. Ingersoll-Rand does not approvespecialised equipment for breathing air applications and assumes no responsibility or liability for compressors used for breathing airservice. Nothing contained on these pages is intended to extend any warranty or representation, expressed or implied, regarding theproduct described herein. Any such warranties or other terms and conditions of sale of products shall be in accordance withIngersoll-Rand s standard terms and conditions of sale for such products, which are available upon request.

3 Product improvement isa continuing goal at Ingersoll-Rand. Designs and specifications are subject to change without notice or : 22263362 Printed in the UK 2003 Ingersoll-Ra