GEA Ultra-Denco ® - Deltagci.com

Close Climate Control for IT EnvironmentsGEA Ultra-Denco ®Reliability with low power consumpstionGEA Heat Exchangers / HVAC Systems

Numerical Flow simulationhighlow■ Velocity field at the heat exchangerNumerical Flow simulation –0.5 s0 s■ Evenly distributed airflow over the heatexchanger as a result of air-guide vanesand condensate drains

New fan configuration brings optimised operating costsUp to 61 % reduction in power consumptionBenefits from new unit configuration and component optimisationRepositioning the fan into the raised floor reduces static regain losses andsave up to 61 % of power consumption when compared to a conventionalchilled water system. Larger filter surface areas with reduced pressure dropspermit longer maintenance intervals. A large, high performance 6-rowcooling coil, manufactured by GEA, has been optimised by our engineersto give minimal pressure drops. The design gives the choice of very highduties at standard water temperatures or even greater efficiencies atelevated water temperatures. All components within the water circuit, suchas cooling coil, valves and pipework have been specifically designed andselected for the minimum possible waterside pressure drops. Because thefans in this configuration only pull air over the unit the main cabinet isnot under pressure. This leads to increased air tightness and reducedpossibility of air leakage. Service access exclusively from the front of theunit ensures simple maintenance procedures.Saving potential by optimised operation costsPower consumption(kWh/a)100,00090,00080,00070,00060,00050,00040,00030,00020,00010,0000Standard unit Ultra Denco ®■ Power consumption for fans■ Additional refrigeration requirementCost savings by GEA Ultra-Denco ®(Operation Costs in € )Current AdditionalYear Std. 1) duty 2) Ultra-Denco ®1 9,093 1,643 4,1632 18,186 3,286 8,3263 27,279 4,928 12,4884 36,372 6,571 16,6515 45,464 8,214 20,8146 54,557 9,857 24,9777 63,650 11,500 29,1398 72,743 13,142 33,3029 81,836 14,785 37,46510 90,929 16,428 41,628107,357 41,628Savings overconventional unit: 61.23%1)Fan duty2)For cooling, as a result of higher fan power (EER CHILLER: 3,0)09/2010 – PR-2010-0041-GB · Subject to modification

Filter■ High-quality EU4 Z-Line filter■ Differential pressure switch in themicroprocessor control system provides analarm when filter change is necessary.Heat exchanger■ Six-tube-row high-performanceheat exchanger developed by GEA■ Designed for optimal pressure dropson the air and water sidesRe-heater■ Electrical heating elements withstainless-steel fins (clad with Incoloy ® )■ Low surface temperature ‘black heat’operationFans■ EC plug fans made of synthetic materialwith backward curved, 3-dimensionalblades in separate fan section■ Minimisation of air-redirection losses■ Energy-saving operation09/2010 – PR-2010-0041-GB · Subject to modification

Microprocessor control■ C3-05 Controller as standard■ T3-04 control as sensor touch monitor,free for options such as programming forthe automatic pressurisation system (APS)Control Valve■ Continuously modulating chilled water valve■ Selection between 2 and 3 port versionsHumidifier■ Proportional electrode steam humidifier■ Microprocessor control with alarmand diagnosis unit

Greater operating cost savings using integrated free coolingOver 30 % reduction in power consumptionComparison of power consumption betweenan air-cooled chiller and a unit with a free-cooling functionPower consumption(kWh/a)Outdoor-temperature plot throughout the year(h/°C)50.00040.00030.00020.00010.0000-11 -9 – -7 -5 – -3 -1 – 1 3 – 5 7 – 9 11 – 13 15 – 17 19 – 21 23 – 25 27 – 29 31■ GLAC 1204 BD2■ GLFC 1204 BD2These data are based on the following conditions:Cooling duty: 350 kW; water temperature: inlet = 15 °C / outlet = 10 °C; operation throughout the entire year; location: Munich, GermanyWhy choose a GEA Chiller with free cooling?Whenever cooling is required year round chillers with a free coolingcapability are the ideal solution. With the ever increasing load demands inbuildings, even in comfort applications, a free cooling chiller can be a mosteffective choice. Depending on the local climate conditions, the use of a freecooling, as opposed to a standard chiller can lead to very short paybacktimes.Chillers with free-cooling functionCooling duty from 30 to 380 kW for systemswith up to 4 scroll compressors, and from 300to 1,250 kW for machines with screw compressors.A master/slave control system from GEA enablescommunications among up to 5 units, whichallows retrofitting to achieve greater requiredcooling duties.The higher the water temperatures the more energy efficient the operationof the chiller. Using higher water temperatures also allows the changeoverto free cooling to be made earlier and remove the need for compressoroperation. Common flow and return water temperatures for chillers are6 °C and 12 °C. But if these temperatures are increased to 10 °C and 15 °Cthen the chiller will operate much more efficiently than at the lowertemperatures. In addition when using higher water temperatures, becausefree cooling will already have started at an outdoor temperature of 14 °Cand not at 11 °C as is the case with standard chiller operation, additionalenergy saving benefits can be enjoyed.09/2010 – PR-2010-0041-GB · Subject to modification

Climate control: automatic pressurisation system (APS)Fan speed = 50 – 70 %20 Pa (constant)20 Pa (constant)■ Constant pressure in thepressurised floor plenum, upto the performance limit ofthe installed equipment■ Prevention of heat accumulationand hotspots■ Great energy-saving potential■ EC fans always featured with APSOptions and accessories■ Support Frames■ Ceiling return ducts■ Horizontal air intake■ Electric Heating■ Filter Grade EU4 / G4■ Chilled Water connection kit■ Building Management System Interfaces– LON– BACNET– MODBUS– ETHERNET– Etc.■ Audible Alarm■ Water Detection System■ Smoke Detection System■ Condensate pump■ Filter Alarm■ Many more featuresGEA Lplus softwareDesigned to your requirementsPlan quickly and reliablyGEA Close Control HVAC systems have the advantage that all theseproducts can be designed in accordance with individual requirements.GEA Lplus design software helps you here to implement your desiredsystem at the turn of a hand. Lplus provides configuration suggestions.Lplus instantly calculates and outputs system subdivisions, arrangementof the modules, and dimensions and weights. You can’t really plan fasterthan that, and at the same time more reliably! This means that you gainvaluable time for other tasks.With its integrated energy-calculation tool,Lplus software determines operationalcosts. It also calculates forecast lifecycle costs –simply and conveniently.Image brochureApplication brochuresProduct brochuresData & Facts and operation manuals(available only as PDF)You are on this level of our documentation structure. You can order printedcopies at no charge from the top 3 levels, from info@gea-airtreatment.com.You can download all brochures as PDF files from the following Internet site:www.gea-airtreatment.com09/2010 – PR-2010-0041-GB · Subject to modification

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