Successfully reported this slideshow.

Uponor radiant cooling gv


Published on

Published in: Technology
  • Be the first to comment

Uponor radiant cooling gv

  1. 1. Radiant Cooling:Principle and systemsDipl. Eng. / MSc Georgios VagiannisProject Manager Engineering and Special ProjectsEngineering and Design,Business Group Indoor Climate
  2. 2. ©Uponor 211 June 2013Solutions:Indoor climateUponor’s solutions create thebasis for a healthy and pleasantindoor climate• Suitable for various applications• Trouble-free and reliable• Energy efficient• Tailored for individual needs• Technologically advanced• Enable architectural freedomUnique thermal comfortexperience
  3. 3. ©Uponor 3Uponor sustainable solutions forresidential buildings
  4. 4. ©Uponor 4Uponor sustainable solutions forcommercial buildings
  5. 5. 11 June 2013 ©Uponor 5evalPE-Xa pipes9,9 x 1,1mm 25 x 2,3mm14 x 2,0mm 32 x 2,9mm16 x 2,0mmpePEX Q&E pipes17 x 2,0mm20 x 2,0mmMLC pipes14 x 2,0mm 25 x 2,5mm16 x 2,0mm 32 x 3,0mm18 x 2,0mm … 110x10mm20 x 2,25mm Riser SystemRadiant heating/cooling – pipe material
  6. 6. ©Uponor 6Low Exergy in practiceInnovative building technology solutions:• Low temperature under floor heating andhigh temperature under floor cooling• Radiant Floors for Heating & Cooling• Thermally Active Building SystemsMatch the quality of supplied energy tothe quality needs of the demand sideLow temperature heating and hightemperature cooling!
  7. 7. Thermal comfort
  8. 8. 11 June 2013 ©Uponor 8General Thermal ComfortThermalcomfortThermalcomfortAirtemperatureAirtemperatureMean radianttemperatureMean radianttemperatureAir velocityAir velocityHumidityHumidityMetabolicrate/activityMetabolicrate/activityClothingClothingAdaptationAdaptationExpectationExpectationExposuretimeExposuretimeEnvironmentalfactorsPersonalfactors
  9. 9. 11 June 2013 ©Uponor 9Thermal comfortPeople feel an averagetemperature of room airtemperature and temperatureof surrounding surfaces:cool air + warm surfacesfeels similar likewarm air + cool surfacesWith radiant cooling surfacesthe room temperature can beincreased with same thermalcomfort.
  10. 10. 11 June 2013 ©Uponor 10Thermal comfortTemperature we feel(operative temperature)The temperature we feel is theaverage between the radiationtemperature and the(convective) air temperature.Air temperature: 26°CRadiant temperature: 20°COperative temperature: 23°C20°C23°C26°C
  11. 11. 11 June 2013 ©Uponor 11Thermal comfortA/C has a temperature profilefrom cold close to A/C towarm in distance from A/C.An A/C system also producesdraught.This causes thermaldiscomfort for people.Radiant cooling has anequal temperature profileall over the room surfacearea without draught.
  12. 12. 11 June 2013 ©Uponor 12Reducing cooling demandThe cooling load ismainly defined by- Internal load Qint- Load from sunradiation Qsun- Convective load QconvThe convective load isproportional to thetemperature differenceTout – TroomQsunQintWith radiant cooling the roomtemperature can be increasedwhich reduces the convectivecooling load.
  13. 13. 11 June 2013 ©Uponor 13Reducing cooling demandq = U x (33-22)U [W/m² K]22 °C26 °C q = U x (33-26)33 °CReduced convectivecooling load by 36%
  14. 14. 11 June 2013 ©Uponor 14Thermal comfort zone (high ceilings)An A/C systemchanges all airvolume in a room.For people it isimportant to createa comforttemperature in azone up to ~ 2,5 mabove the floor.With a floorcooling systemthis can berealised withouthigh air changerates.~ 2,5 m
  15. 15. 11 June 2013 ©Uponor 15Special: sun radiation on floorA special benefit ofradiant floor cooling is toremove heat from sunradiation onto the floorby very efficient way.With radiant floorcooling the floortemperature is keptlow and the heattransfer to the room isdecreased.
  16. 16. 11 June 2013 ©Uponor 16107129148153555759511513515525 20 15W/2mCALCULATED CAPACITY IN AN ATRIUMWITH DIRECT SUNSHINE ON THE FLOORSupply water temperature, oCUnderfloor cooling in open areas
  17. 17. 11 June 2013 ©Uponor 171 l of water can transfer the sameamount of energy than 3,5 m,³ ofair ora ¾” pipe can transfer as muchenergy as a 14” round duct.Pumping fluids as opposed tomoving air can reduce the point-to-point transfer costs by as muchas 95% on a BTU-to-BTU basis.1 l water3,5 m³ airEnergy transfer capability by water and air
  18. 18. 11 June 2013 ©Uponor 18Radiant systems vs. air systemsNo cooling - decreasedperformanceLow energy costsLow operation costsConstant temperatureDraughtNoiseHigh energy costsHigh operation costsTemperature ramps in thermalcomfort rangeReasonable energy costsLow operation costs,high electricity savings,minimal maintenance costs
  19. 19. 11 June 2013 ©Uponor 19BehaglichesRaumklima12 14 16 18 20 22 24 26 28 301416182022242628Air temperature [°C]Meansurfacetemperature[°C] ComforttemperatureareaThermal comfortaccording to P.O.FangerEffect of the operative temperature on thermalcomfortWith radiant coolingWith radiant heating
  20. 20. Uponor cooling systems –overview and Standardclassification
  21. 21. 11 June 2013 ©Uponor 21Uponor TAB-SystemContec, since 1997Uponor TAB-SystemContec ON, since 2005Comfort Panel, since 2007(OEM-Product from SWE)Uponor cooling systems – pioneeringUponor underfloorcooling, since 1990sPlaster ceiling coolingsystem
  22. 22. 11 June 2013 ©Uponor 22Classification of systems, ISO 11855 & EN 1264Pipes isolated from main buildingstructureA - System with pipes embedded inthe screed or concreteB - System with pipes embeddedoutside of the screedC - System with pipes embeddedin the screedD – Plane section systemsType A Type BType BType D
  23. 23. 11 June 2013 ©Uponor 23Different systemsfor eachrequirementUponor systems for floor cooling
  24. 24. 11 June 2013 ©Uponor 24Classification of systems, ISO 11855 & EN 15377Pipes isolated from main building structureG - System with pipes embedded in awooden constructionPipe under subfloor:Pipe in subfloor:
  25. 25. 11 June 2013 ©Uponor 25Uponor systems for wall cooling
  26. 26. 11 June 2013 ©Uponor 26Thin pipe system for plasteredceilingsUponor Comfort Panel forsuspended ceilingsUponor systems for ceiling coolingUponor Gypsum Panel forsuspended ceilings
  27. 27. 11 June 2013 ©Uponor 27Uponor Gypsum Panel - designEPS 200 insulation, 27 mmFibre reinforced plasterboard, 15 mmUponor PE-Xa pipe 9.9 x 1.1 mmWith Oxygen diffusion barrierPipe distance = 50 mm
  28. 28. 11 June 2013 ©Uponor 28• Active panel dimensions2000 x 1200 mm1000 x 1200 mm500 x 1200 mmUponor Gypsum Panel - dimensions• Blind panel dimensions2000 x 1200 mm
  29. 29. 11 June 2013 ©Uponor 29Classification of systems, ISO 11855 & EN 15377Thermally-Active BuildingSystems (TABS)E - System with pipesembedded in the massiveconcrete slabs
  30. 30. 11 June 2013 ©Uponor 30Uponor TAB SystemVariable solutionsStandard Thermal socketSurface close Surface close, High performance module
  31. 31. Uponorradiant cooling/heatingreferences
  32. 32. 11 June 2013 ©Uponor 32• Uponor radiant cooling applications or projects ( ) areapplied in all climatic regions incl. hot and humidUponor cooling projects worldwideWorld climatic zones according to Neef.Source:
  33. 33. 11 June 2013 ©Uponor 33References in Hamburg
  34. 34. 11 June 2013 ©Uponor 34Hamburg HafenCityChosen reference projects2Elbphilharmonie3Unilever headquarter45SKAI1EricusspitzeMarco-Polo-Tower
  35. 35. 11 June 2013 ©Uponor 35National Library,Prague Czech RepublicThe KrankhausBuildings, Cologne,GermanyCalifornia Academy of Science,San Francisco, USAOpera House Oslo,NorwayCOOPER Union,New York, USAKLIMAHAUS science centerBremerhaven, GermanyDOLCE VITA TEJO shoppingcentre, Lisbon, PortugalBangkok InternationalAirport, ThailandGlenelly Wine Estate,Stellenbosch South AfricaGardens By the Bay,SingaporeHamburg InternationalAirport, GermanyBayer Lighthouse,Qingdao, ChinaSheikh Zayed DesertLearning Centre,Al Ain, UAEBMW Welt, Munich, GermanyAmerican University ofBeirut, LebanonZero Energy OfficeBuilding, Bangi, MalaysiaUponor radiant cooling projects in all climates
  36. 36. ©Uponor 36Study on energy saving ofRadiant System in a commercial buildingPrimary energy use for heating, cooling and ventilation,resulting from an EnergyPlus simulation of a typicaloffice building (511m2), operated in different Europeanlocations. The building design fulfill national energyregulations.All systems works with condensing gas boilers and aircooled chillers.The radiant ceiling system has in addition thepossibility of free cooling through groundwater (18°C)Source: Site energy, source energy and CO2 emissions: savings potential with radiant systems –2010 - Politecnico of Torino – Corgnati, Fabrizio