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Uponor Contec Compendium Uponor Contec compendium THERMALLY ACTIVE BUILDING SYSTEMS 07 | 2014 Table of contents 1. System description and application....................................................5 1.1 Principle..............................................................................................................6 1.2 Uponor Contec.................................................................................................. 6 2. Why select TABS?............................................................................... 9 2.1 Thermal comfort................................................................................................11 2.1.1 PMW and PPD 2.1.2 Room operative temperatures 2.1.3 Characteristic indoor climate 2.1.4 Adaptation acc. to ISO 7730 2.1.5 Further comfort parameters 2.1.6 Hospital hygiene guidelines 2.2 Work productivity............................................................................................. 17 2.3 Life cycle cost of TABS compared to other HVAC schemes............................18 2.4 Ideal for intelligent, sustainable architecture...................................................22 2.5 Flexibility and space utilisation.........................................................................23 2.6 Summary of TABS advantages..........................................................................26 3. TABS design basics..............................................................................27 3.1 Cooling and heating sources.............................................................................28 3.2 Options for heating & cooling systems with TABS..........................................28 3.3 Notes on designing components for thermal utilisation of ground energy....30 3.4 Thermal calculations......................................................................................... 35 3.4.1 Calculation of output for the steady-state case 3.4.2 Simplified model calculation based on finite difference method (FDM) 3.5 Ceiling configurations.......................................................................................37 3.5.1 Output from a concrete slab without insulation 3.5.2 Thermal output of a concrete slab with step-sound insulation layer 3.5.3 Output from a concrete slab with raised access floor 3.5.4 Reduction in output through acoustic measures, insulating layers or voids 3.6 Dynamic considerations....................................................................................41 3.6.1 Thermal building simulation for different building types 3.6.2 Thermal building simulation for building with floor-to-ceiling glazing 3.6.3 Thermal building simulation for a building with high thermal mass 3.6.4 When should simulation be used? 4. Construction methods........................................................................47 4.1 In situ slab construction....................................................................................48 4.2 Post-tension concrete slab............................................................................... 49 4.3 Filigree floor slab.............................................................................................. 49 4.4 Precast concrete floors.....................................................................................50 4.4.1 Common precast elements 4.4.2 Hollow core 4.5 Permanent formwork slabs................................................................................51 4.6 Special applications...........................................................................................52 4.6.1 BubbleDeck 4.6.2 Cobiax® 4.6.3 U-Boot® 4.6.4 Ribbed and waffle slabs 4.6.5 Polystyrene voiding blocks 4.6.6 Renovation of historical buildings 4.7 Wall installation................................................................................................. 55 2 2 UPONOR CONTEC COMPENDIUM 5. Installation guidelines........................................................................57 5.1 Delivery of modules...........................................................................................57 5.2 Installation steps...............................................................................................59 5.3 General notes on installation according ISO 11855.........................................62 5.4 Test protocols.................................................................................................... 63 6. Uponor Contec systems......................................................................65 6.1 Uponor BIC (Built-In Clamp) System................................................................66 6.2 Uponor Q system.............................................................................................. 67 6.3 Uponor Contec ON system...............................................................................67 6.4 System components..........................................................................................68 6.5 System accessories............................................................................................ 72 7. Control and operation........................................................................ 75 7.1 Basics.................................................................................................................76 7.1.1 Operation modes 7.1.2 Operating temperature 7.1.3 TABS zoning 7.1.4 TABS hydraulic 7.1.5 Sensors 7.1.6 Condensation protection 7.2 Combination with additional secondary systems.............................................83 7.3 Different conventional TABS control strategies..............................................83 7.4 Predictive TABS control....................................................................................85 7.4.1 Concept 7.4.2 Supply temperature control depending on predicted outside temperature 7.4.3 Multiple Linear Regression 8. Acoustics.............................................................................................91 8.1 Basics.................................................................................................................92 8.2 Relevant standards............................................................................................94 8.3 Acoustic solutions..............................................................................................94 8.3.1 Acoustic plaster 8.3.2 Wall, floor & furniture absorbers 8.3.3 Wall partitions 8.3.4 Vertical acoustic absorber 8.3.5 Ceiling integrated absorber strips 8.3.6 Activated acoustic elements 8.4 Effect of acoustic measurements in heating/cooling capacity of TABS.........98 9. References...........................................................................................101 10. Tender texts........................................................................................117 10.1 BIC System.........................................................................................................118 10.2 Q System............................................................................................................123 UPONOR CONTEC COMPENDIUM 3 4 4 UPONOR CONTEC COMPENDIUM System description and application 1.1 Principle The principle at work behind the “Thermally-Active The “Active” element of a combined cooling and Building System” (TABS acc. to ISO 11855-1) is based heating system is achieved by embedding pipes in the on the thermal storage capacity of parts of a building. structural concrete slabs or walls of the building. This thermal capacity is well-known in historic buildings TABS operates at temperatures close to ambient such as castles and churches: their very thick walls are which facilitates the integration of renewable energy able to absorb outside temperature variations. and cooling sources that are free of cost. Further- more, TABS has been a mature and well-proven technology for decades. TABS - use of the thermal storage capacity of the building 1.2 Uponor Contec Concrete ceilings can be used for the cooling and/or Uponor Contec is installed together with reinforcing ele- heating of buildings. Uponor Contec turns ceilings into ments in the concrete ceiling. Thermal activation of thermally-active elements with integrated modular pipe building structures is an ingenious technology that not loops positioned in the slab structure. only provides comfortable indoor climate but also helps protect the environment and save costs. The Uponor This solution from Uponor utilises the thermal storage Contec System is a form of central heating and cooling capacity of concrete ceilings in large commercial build- which achieves indoor climate control primarily through ings such as office blocks or administrative premises, thermal conduction and thermal radiation rather than offering a future-proof and cost-efficient method of convection. room climate control. BOB-the Balanced Office Building, Aachen, Germany, 2,000 m2 Uponor Contec 6 6 UPONOR CONTEC COMPENDIUM Heating and cooling are achieved by circulating heated or chilled water (16-20 ºC for cooling and 22-28 ºC for Advantages heating). Compared to other forms of heating/cooling, this system creates no air turbulence due to the very low High thermal comfort for occupants convection rate in heat transmission. resulting in enhanced work productivity Additionally, naturally available energy sources are uti- Optimised utilisation of renewable lised in environmentally-friendly ways. The system oper- energy sources ates within temperature ranges that are close to that of System components are largely room temperature, which
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