Fulltext results:
- What defines thermal bridge free design?
- sign, the heat losses through the thermal bridges can be reduced so much that they do not have to be t... hi_{j}} $$ </WRAP> “Thermal bridge free design” can be defined as follows: the contributions provided... l result in certain positive contributions, which can however be regarded as "negligibly small".\\ \\ ... the //**[TbCrit]**// criterion has been met. This can be done, for example, by calculating all the rele
- Definition and effects of thermal bridges @basics:building_physics_-_basics:thermal_bridges
- **surface temperatures**; in the worst case this can lead to moisture penetration in building componen... at losses**.\\ \\ Both effects of thermal bridges can be avoided in Passive Houses: the interior surfac... of the total heat flow. For these, heat transfer can be considered one-dimensional with good approxima... coefficient is defined in the norm [DIN6946] and can be calculated with little effort using the famili
- Heating load in Passive Houses
- is the decisive factor: a certain amount of heat can be distributed with very little effort via the su... eat distribution to a minimum. These cost savings can then be reinvested in energy efficiency measures,... n system itself. However, the amount of heat that can be distributed via the fresh air system without a... t capacity of 0.33 Wh/(m<sup>3</sup>K). Fresh air can only be heated by a maximum of 30 K (to 51°C) in
- Heated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- h connections ($\Psi_{upper}$ und $\Psi_{lower}$) can be examined separately for the criterion relating... of the ground. In this way, Option A or Option B can also be applied for heated basements. In the cont... nts that are relevant for determining the Ψ-value can be ascertained as follows: {{ :picopen:beheizter... calculated. The conductance of the exterior wall can also be calculated easily here from the U-value a
- Special features and characteristics of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact
- ing the project planning, the surface temperature can be equated with the outdoor air temperature in pr... component. However, the heat transfer resistance can no longer be determined in accordance with R = λ/... material by one Kelvin. This means that materials can absorb a certain amount of heat and release this ... _s$ and a harmonic component $L_{pe}$. Both parts can be adjusted in the PHPP by means of a linear ther
- Basic principle for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation
- ation of the minimal interior surface temperature can be performed using the same model, but other boun... mensions are used more often in practice as these can easily be taken from plans and measurements. Exte... termining the surface temperatures is similar and can usually take place using the same model as for ca... ilding component. The minimum surface temperature can then be read here; however this only refers to th
- Exterior wall on floor slab @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- ayers are relevant for the calculations and which can be disregarded. Thus for example, blinding layers can be disregarded which do not have any significant ... the actual size of the building is not known, B‘ can be selected for the option B, but it should not b... , after which the Ψ-value of the whole connection can be calculated as shown below: <WRAP centeralign>
- Thermal comfort parameters @basics:building_physics_-_basics:thermal_comfort
- the temperature of the surrounding surfaces, this can also be summarised as the "radiant temperature", ... good, this is known as the **comfort range**. It can be determined by Fanger’s equation, documented in... ssive house window. Therefore the heating element can be placed also at an inner wall while still reach... ion simultaneously improves thermal comfort. This can be understood as follows: * By improving therm
- Unheated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- $ </WRAP> When entering the key data, this value can be taken from the Ground worksheet of the [[plann... and $L_{iu}$ are required for this method. These can be determined through two calculations. <WRAP ce... he software used. Alternatively, the conductances can be ascertained as in the previous variant, but ag... that the overall resistance of the basement level can be calculated afterwards with the aid of the appr
- Local thermal comfort @basics:building_physics_-_basics:thermal_comfort
- ion simultaneously improves thermal comfort. This can be explained as follows: * By improving therma... Passive House quality", particularly for windows, can even be defined as follows: the insulating effect... racteristics of well-insulated building envelopes can be observed **in practice**: - Thermographic i... : AkkP Protokollband Nr. 25, Darmstadt, 2004\\ (**Can dreams come true?: Temperatures in Passive Houses
- Software for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation
- ethods. Typical heat flow software programs which can be used for building engineering applications are... ments in DIN EN ISO 10211, Appendix A and that it can calculate heat flows and surface temperatures wit... t should be noted that not every software program can perform calculations in a non-steady state, i.e. ... ns for temperatures and heat transfer resistances can be found in the norm DIN EN ISO 10211. The norm D
- Thermal Bridges Catalogue @basics:building_physics_-_basics:thermal_bridges
- EnerPHit Standard), this thermal bridge catalogue can support the designer. The catalog contains typica... f our knowledge and belief. However, no liability can be accepted for any content-related shortcomings ... sulation thickness, and thermal conductivity. You can find out more about this Thermal Bridges Tool [[:
- Adaptive versus Heat Balance Comfort Models @basics:building_physics_-_basics:thermal_comfort
- ermal comfort is achieved if the body temperature can be held in a narrow range, skin moisture is low a... e by users of free-running buildings because they can adapt to varying boundary conditions. Depending o... priate. An indication for the limits of validity can be found in the comprehensive ASHRAE report RP-88
- Interior walls on floor slabs @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- sition of the interior wall is known. The Ψ-value can then be calculated based on the same method as in... bb_3.png?400 |}} Modelling of the exterior wall can be omitted, but adiabatic cutting of the front su... l be calculated in any case and the interior wall can be quickly placed into the corresponding model. T
- Recommended procedure for calculating thermal bridges of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact
- The effect of edge insulation or skirt insulation can also be depicted directly by the $\varPsi$-values... include the influence of the ground. These values can be calculated using the approximation functions i... in the rows 55-58 which are hidden). These values can only be determined if the dimensions of the compo