czech technical university in prague faculty of civil engineering department of microenvironmental...
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Czech Technical University in Prague Faculty of Civil Engineering
Department of Microenvironmental and Building Services Engineering
Czech Technical University in Prague Faculty of Civil Engineering
Department of Microenvironmental and Building Services Engineering
Building Services Building Services Systems 20Systems 20
Building Services Building Services Systems 20Systems 20
Lecture 4Lecture 4Heat emmittersHeat emmitters
Lecture 4Lecture 4Heat emmittersHeat emmitters
Heat emittersHeat emitters
Fan convec tors N atura l
C onvec tors
B anks of P ipes O ff peak storage C olum ns R adiantpanels
P anels
R adiators
Heat emitters
ConvectorsConvectors
NaturalFan-convectorsFloorWall
RadiatorsRadiators
Off-peak storageOff-peak storage
StaticStatic DynamicDynamic
ConvectorConvector Radiator Radiator
Heat emittersHeat emitters Design principlesDesign principles
Heating outputHeating output LocationLocation Covering - furnitureCovering - furniture Connection to the pipe systemConnection to the pipe system TypeType
HeaterHeater emitters emitters design design
Covering = changes in the outputCovering = changes in the output
100% 87%110%95%
100% 100% 90% 85%
Connection to the piping system
Low - temperature Low - temperature radiant heatingradiant heating
floor, wall and/or ceiling with floor, wall and/or ceiling with embedded pipes or el.wires in embedded pipes or el.wires in concrete slabconcrete slab Temperature distributionTemperature distribution
Underfloor heatingUnderfloor heating
History
Low - temperature Low - temperature radiant heatingradiant heating
Floor structureFloor structure
Insulating strip between wall and flooring
Finished flooringConcrete slab min 65mm
Thermal insulation20-80mm
Pipes
Humidity seal
Reinforcement
Supporting floor structure
Underfloor heating - Underfloor heating - structurestructure
TYP ATYP B
TYP C
Low - temperature Low - temperature radiant heatingradiant heating
Technical solutionTechnical solution Pipe layoutPipe layout
Low - temperature Low - temperature radiant heatingradiant heating
Output Output Limited surface temperature Limited surface temperature limited output limited output
cca 100 W.mcca 100 W.m-2 -2
Energy savings Energy savings Lower air temperature Lower air temperature lower heat losseslower heat losses
ControlControl Low temperature difference Low temperature difference autocontrol autocontrol
effecteffect
Underfloor heating - Underfloor heating - examplesexamples
Radiant panelsRadiant panels
Low temperatureLow temperature heaters max 110 °C (water, steam, heaters max 110 °C (water, steam,
el.power)el.power)
High temperatureHigh temperature dark - about 350°C - radiant tube heating dark - about 350°C - radiant tube heating
system (gas)system (gas) light - about 800 °C - flameless surface gas light - about 800 °C - flameless surface gas
combustioncombustion
Czech Technical University in Prague Faculty of Civil Engineering
Department of Microenvironmental and Building Services Engineering
Czech Technical University in Prague Faculty of Civil Engineering
Department of Microenvironmental and Building Services Engineering
www.korado.czwww.minib.czwww.rehau.nowww.jaga.cz
www.korado.czwww.minib.czwww.rehau.nowww.jaga.cz