Uponor Solutions for Radiant Cooling

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Uponor solutions

for radiant cooling

Uponor International SalesDietmar Hennig

October 2009



Radiant cooling

Principles and thermal comfort



05 November 2009 ©Uponor 3

Operative temperature

The temperature people feel isan average of the airtemperature in a room and theradiant temperature from thesurrounding surfaces.

I f the floor temperature is e.g.18°C and the roomtemperature 26°C people will

feel it as 22-24°

C.

With a radiant cooling systemthe room temperature can beincreased compared to an air

conditioning system.1 deg. higher room air temperatureresults in savings of approx. 6% of primery energy.




Compared to air conditioningsystems radiant coolingcreates no air turbulences dueto the very low convection

share in heat transmission.

No unhygienic dust anddraught occurs.

The cooling output is equal allover the cool surface.

Therefore Uponor radiant

cooling solutions support ahealthy and comfortable roomclimate

Air turbulences




12 14 16 18 20 22 24 26 28 30

14

16

18

20

22

24

26

28

Air-temperature [°C]

R a d i a t

i o n t e m p e r a t u

r e [ ° C ]

Zone of thermal comfort

with UFC

w ithout UFC

zone of thermal comfort by P.O. Fanger

With radiant cooling system the room temperature can beincreased by approx. 2K

Comfort


http://slidepdf.com/reader/full/uponor-solutions-for-radiant-cooling 6/5805 November 2009 ©Uponor 6

Cooling load

There are 2 components of cooling load in rooms:latent and sensible load

The Sensible Load is the temperature component, the Latent Load

is the humidity portion.When moisture laden air passes over a cold surface, the airtemperature drops below the "dew point" which causes the moistureto condense. The air has then been cooled and some of the moistureremoved. Just as it takes ~ 2,3 kJ to vaporize one gram of water (the

Latent Heat of Vaporization), for every gram of water vaporcondensed, 2,3 kJ heat are given up.

Typically, latent loads are at least 30% of the total cooling load.Higher in some applications and humid climates.

The latend load has to be compensated w ith air conditioning systems.

The sensible load can be compensated w ith Uponor radiantcooling systems, reducing the size of the air conditioning system



Radiant cooling

Energy saving



Energy transfer by water

1 l of water can transferthe same amount of energy than 3,5 m³ of air

or

a ¾” pipe can transfer asmuch energy as a 14” round duct.

Pumping fluids asopposed to moving aircan reduce the point-to-point transfer costs by as

much as 95% on a BTU-to-BTU basis.

1 l water

3,5 m³ air



Energy transfer by water

To remove 1 kW of cooling load from a room w ith

Air conditioningsystem

(∆

T=10 K)

Radiant coolingsystem

(∆

T=3 K)

Flow rate, m³/ h 300 0,29

Ventilator / pumppower, W

140 0,3

% of cooling output 14 0,3



Uponor floor cooling solutions are not air-conditioningsystems

andcan not be used for controlling humidity in buildings,

but

the air change rate in rooms can be reduced to minimumvalue required for hygienic reasons and dehumidification

what

reduces costs for air conditioning channels, equipment,operating and maintenance.

Radiant cooling & air conditioning



Uponor solutions

for radiant cooling



You can solve your cooling problems this way… .



… or use Uponor solutions for radiant cooling



Uponor solutions for radiant cooling

CeilingCooling

WallCooling

FloorCooling

Comfort panel

Plas ter ed cei l i ng

lightweightsystem

clamp track

system

different floorcooling systems

high cooling output

fast reaction surface

for renovation

and single houses

high cooling output


for renovation andnew build

less cooling output

for floor tempering

UFH/ UFC combination

ThermallyActivatedBuildingSystems

Concrete coreactivation

Thermally

activatedsurfaces

cover basic coolingload

high energy efficiency




Radiant floor cooling




Two pipe materialsfor individual

fixation systems

Uponor floor cooling systems




Uponor MLC pipes

Pipe material PE-RT according to DIN 16833




MLC - advantages

Excellent long run behaviour

• No incrustation

• Corrosion resistant

• Low thermally expansion

• Absolutely oxygen diffusion tight

• Low weight

• High form stability

• Bending flexibility

Uponor MLC pipes




Uponor PE-Xa pipes

Cross linkedpolyethylenePE-Xa

Hightemperatureand pressureresistance

robust onbuilding site




PE-Xa - material characteristics No incrustation

Corrosion and abrasionresistant

High chemicalresistance

Oxygen diffusion tight

Thermal memory effectBending flexibility

Low w eight

High crack resistant atlow temperatures

Excellent long–runbehaviour

Uponor PE-Xa pipes

fl l




Whet system (screeded)

mainly for new buildings

Dry system (no screed)

mainly for renovation

Uponor floor cooling systems

U i h l h




Diffusion tight Uponor pipesfixed on reinforcementmeshes - easy to install andadapt to room layout

Uponor system w ith steel mesh

U t ith t l h




Uponor system w ith steel mesh

U t l t




Uponor stapler system

Diffusion tight Uponorpipes fixed by staples on

insulation roll w ith texturefoil - easy to install andadapt to room layout

Sound insulation already

includedNew buildings

U i iti i l




Diffusion tight Uponorpipes fixed on special foilelements which protect

pipes from damages onconstruction site

Uponor pipe positioning panel

U i iti i l




Uponor pipe positioning panel

U hi h f l




Small diffusion-tightUponor PE-Xa pipes fixed

on special foil elements

Can be installed on “old” floor screed, ideal forrenovation

Uponor high performance panel

Upono high pe fo mance panel




Uponor high performance panel

Please note that special screed needed.

Uponor lightweight system





Diffusion tight Uponorpipes fixed in groves incooling emission plates,integrated in insulation

panels

For cases where no screedsystem can be used

renovation

Cooling output




26°C

qK≈

40 ... 20 W/ m²

Cooling output



Radiant wall cooling

Uponor wall cooling




Uponor wall cooling





Diffusion tight Uponor pipes

fixed in metal cooling emissionplates which are integrated ininsulation panels


Uponor plastered system




Diffusion tight Uponor pipesfixed w ith clamp tracks on thewall and plastered

Uponor plastered system

Cooling output




qK ≈

55

W/m²

Cooling output



Radiant ceiling cooling

Uponor Comfort Panel




Replacement of oldceiling by Uponorcomfort panel






Easy installation

• Replace old panels in theframework

• Connect panels together tosections w ith push fittings

• Connect section to suply/ returnlines e.g. Uponor MLC pipes


Uponor plastered ceiling




Uponor plastered ceiling

Small Uponor pipesinstalled on the ceilingw ith and covered withplaster

Individual roomtemperature controlpossible

Cooling output




Cooling output

26°C

qK ≈

50 ... 90 W/ m²



Uponor TABS

Thermally Activated Building Systems

TABS thermally activated building systems




Pipes are integrated in theslabs of the buildingconstruction

The thermal mass of

concrete slabs can absorbcoldness during night-timeand utilise heat load duringday-time

Covering of basic coolingloads

TABS thermally activated building systems

General working principle




General working principle

Uponor TABS




Uponor PE-Xa pipes areintegrated in the slabconstruction for cooling

the building structure

Uponor TABS

Cooling output




qK ≈

5 ... 20 W/ m²

qK ≈

40 W/ m²

Cooling output



References

Uponor radiant cooling solutions




• Office buildings• Museums• Libraries• Banks

• Schools• Hospitals• Showrooms• Airports

Uponor radiant cooling solutions

Ecobox, Madrid Offices




Uponor’s invisible radiant cooling is a state-of-the-art systemthat forms an integral part of the design of buildings and theirperformance. I t represents a commitment to the future thatguarantees the optimisation of energy consumption and

maximum comfort.

,

BMW World Munic




Providing full architectural freedom

BMW World Munic




• 16.500 m² of floor, glass and steel,architecture in the BWM museum

• 5,000 m² of Uponor industrial radiantcooling and heating with PE-Xa pipesintegrated into the hall floor =massive invisible cooling or

heating panel• Full architectural freedom provided:

An experience which appeals to allsenses, allowing visitors to experiencethe fascination of mobility

• Energy-saving and environmentallyfriendly operation

Art Museum Bregenz, Austria




“Due to the useof Uponorradiant cooling,the ventilation

system’s sizecould bereduced by afactor of 8.”

t useu ege , ust a

Air condition systemw ithout Uponor radiantcooling system

~ 24.000 m³/ h

w ith Uponor radiantcooling ~3.000 m³/ h

Reem Emirates Aluminium Abu Dhabi




Reem Emirates Aluminium Abu Dhabi




Radiant floor coolingin office buildingw ith support bychilled beams if

necessary.

The system is istalledin combination w ith

active cooled facadeelements from REA.

Bangkok International Airport




g p

150.000 m² floor cooling w ithUponor PE-Xa pipe system,combined w ith displacementventilation

The world’s largestapplication of surface cooling

= size of 20 football fields

30 million passengers peryear

Floor surface temperature

approx. 21°C, temperature of

occupied zone approx. 20 °C

Special solar shading system





27°C operative

temperature inside

21°

C floor temperature





“Without applying the active floorcooling surface temperatureswould reach more than 30°C. Thiswould result in the breaking

down of all air layers inside thebuilding.

As a consequence, the ventilationsystem‘s capacity and output

would have to be increasedconsiderably which for a buildingof that size is not applicable“

Uponor Solutions for Radiant Cooling

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