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Special features and characteristics of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact

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alculating_energy_efficiency:phpp_-_the_passive_house_planning_package |PHPP]]. ===== Influence of th... pends on the structure of the ground surface. Because the condition of the surfaces bordering the build... es place towards the outside air. The heat flow caused by the temperature difference between the inside... nger be determined in accordance with R = λ/d because the ground around a building does not represent a

Definition and effects of thermal bridges

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ts of thermal bridges can be avoided in Passive Houses: the interior surface temperatures are then so h... uncertainty of ca. 5 %, other methods such as the use of thermal bridge catalogues are even associated ... (DIN EN ISO 14683, Section 5.1). **For Passive House buildings, the use of thermal bridge additions is not advised because they lead to overestimation of

Basic principle for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation

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red to all throughout. If interior references are used in the context of energy balancing, then $\Psi$-values based on interior references must also be used. However, exterior dimensions are used more often in practice as these can easily be taken from plans... s. Exterior dimensions are therefore consistently used in the [[planning:tools|PHPP]]. {{ :picopen:psi

Exterior wall on floor slab @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples

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ncrete layer (layer number 19) is disregarded because the insulating effect is small compared to the su... ulation. The same dimensional reference should be used in the respective [[planning:calculating_energy_efficiency:phpp_-_the_passive_house_planning_package |PHPP]] calculation. In the exam... which boundary conditions for the temperature are used for determining the conductances; however, it is

Unheated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples

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2d}$ cannot be calculated directly, but with the use of $L_{ue}$ it is possible to express the heat fl... is calculated in accordance with Equation 1. Because the heat losses due to the ventilation of the spa... alculating_energy_efficiency:phpp_-_the_passive_house_planning_package |PHPP]]; for this, some rows in ... f the Research Group for Cost-effective Passive Houses and is demonstrated below. Only the conductances

Recommended procedure for calculating thermal bridges of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact

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== In practice, very different methods are often used for calculating thermal bridges of components in... In doing so, exactly the same dimensions must be used in the models. \\ \\ **For preparing the calcula... is included in the U-values and conductances, because this is already taken into account in the Ground worksheet of the PHPP. The PHPP does not use heat flow simulations for this and instead uses s

Software for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation

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\cdot \Delta \theta $$ </WRAP> This equation is used in energy balancing for taking into account the ... Typical heat flow software programs which can be used for building engineering applications are based ... software#References|[AkkP 16]]]. However, for the user it is crucial that the used software meets the requirements in DIN EN ISO 10211, Appendix A and that

Heated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples

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alculating_energy_efficiency:phpp_-_the_passive_house_planning_package |PHPP]] it is sufficient to ente... alculating_energy_efficiency:phpp_-_the_passive_house_planning_package |PHPP]], U-values for the baseme... \\ In practice, pre-prepared Excel templates are used here also for determining the Ψ-values. The heat... d the $f_{Rsi}$ factor, the same procedure can be used in this case as for any other thermal bridge. <

Thermal Bridges Catalogue

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y allowing the identification of Ψ-values for the use within various climate conditions. The thermal b... r for any damage or consequences arising from the use of the information presented here is therefore excluded. |[[https://database.passivehouse.com/de/download/product_page/thermal-bridge-catal... catalog for free.| |[[https://database.passivehouse.com/de/download/product_page/thermal-bridge-catal

Interior walls on floor slabs @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples

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The result will be strongly on the safe side because the "insulating effect" of the ground is not take... As a two-dimensional approximation, which is also used in the context of certification for a constructi... ore sense to depict the exterior wall as well because the connection of the exterior wall to the floor ... e safe side the surface temperatures will be, because these increase in line with the increasing distan

Thermal Bridges

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|]] * [[:planning:refurbishment_with_passive_house_components:thermal_envelope:minimising_thermal_br

Thermal bridge calculation

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. In highly efficient buildings such as Passive Houses, the influence of these losses has to be minimis