Fulltext results:
- Heating load in Passive Houses
- iency, the heating demand in Passive Houses (typically no higher than 15 kWh/(m²a)) is negligible – onl... building to the Passive House Standard, it is actually possible to achieve energy savings as high as 90... ng demand, guaranteed to be low in any case, is really secondary to ensuring that a Passive House build... nergy threshold of 15 kWh/(m²yr) for heating typically relates to a heating load of 10W/m² in typical C
- Thermal comfort parameters @basics:building_physics_-_basics:thermal_comfort
- iteria_according_to_international_standards_especially_for_use_in_passive_houses|comprehensive explanat... ment near to a Passive House window: Due to the small temperature difference between window surface and... air, the speed of air sinking at the window is small. At the floor, approximately 10 cm horizontally from the passive house window (U=0.8 W/(m²K)) the maxi
- Heated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- ement ceiling and the connection of the basement wall to the basement floor slab. In the Ground workshe... ues for the basement floor slab and the basement wall are determined using the approximation function i... ne the Ψ-value, the conductances of the exterior wall, the basement wall and the basement floor slab must also be calculated. The conductance of the exterio
- Local thermal comfort @basics:building_physics_-_basics:thermal_comfort
- al thermal comfort ====== It is interesting that all comfort criteria are automatically fulfilled in an optimum way with the requirements of the Passive Ho... is also reduced. The heat flow overcomes the so-called thermal resistance of the surface (radiation and convection). * The smaller heat flow results in a smaller temperature loss
- What defines thermal bridge free design?
- if the transmission losses under consideration of all [[basics:building_physics_-_basics:thermal_bridg... into account in the energy balance}}] \\ The overall temperature-specific heat loss is characterised b... ductance HT. It comprises the **regular losses of all areas A with their regular heat transfer coeffici... $\chi $. As the punctiform contributions are generally insignificant, they will not be discussed in det
- Interior walls on floor slabs @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- ====== Interior walls on floor slabs ====== Interior walls on floor slabs are often calculated two-dimensionally without the influence of the ground. The result ... matter of fact the thermal bridge of an interior wall on a floor slab depends on the distance from the
- Adaptive versus Heat Balance Comfort Models @basics:building_physics_-_basics:thermal_comfort
- and clothing. There are currently two fundamentally different approaches in the judgement of thermal... first are the **heat balance models**, which basically assume that thermal comfort is achieved if the b... lted in the international standard ISO 7730 which allows for the calculation of the predicted mean vote... othing levels. For sedentary activity, category A allows for a minimum of 21 °C, category B for 20 °C a
- Definition and effects of thermal bridges @basics:building_physics_-_basics:thermal_bridges
- ing envelope where the heat flow is different (usually increased) in comparison with adjacent areas (if... ts of thermal bridges are: * **Altered**, usually decreased, interior **surface temperatures**; in... mponents and mould growth. * **Altered**, usually increased, **heat losses**.\\ \\ Both effects of... nsignificant. If the thermal bridge losses are smaller than a limit value (set at 0.01 W/(mK)), the de
- Exterior wall on floor slab @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- ====== Exterior wall on floor slab ====== A typical connection detail is shown below: {{ :picopen:aus... is disregarded because the insulating effect is small compared to the surrounding earth. The perimeter ... . The following U-value results for the exterior wall: {{ :picopen:aussenwand_auf_bodenplatte_abb_6.pn... \\ ===== Calculation model ===== First, an overall model is prepared for calculating the conductanc
- Special features and characteristics of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact
- omponents in contact with the ground ====== Basically the procedure for calculating thermal bridges in... e ground on the building envelope is known, especially in terms of setting the linear thermal transmitt... urroundings are very complex. This applies especially for the system "ground". Apart from the ground i... oor air temperature. Thus for example, snow that falls during temperatures around freezing point initia
- Unheated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- lues of the basement floor slab and the basement wall respectively and are based in turn on the approxi... basement is also taken into account. In order to allow energy-relevant evaluation of the connection si... b_4.png?200|}} For the unheated basement, the overall value $L_{2d}$ must also be calculated as it is f... he boundary surface of the ceiling area, which usually is not true, of course. The difference to the re
- Recommended procedure for calculating thermal bridges of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact
- mal bridges towards the ground). The ground especially is taken into account in the calculation in diff... * partial taking into account the ground with small layers of earth or with small blocks of earth in the calculation models * no depiction of the groun... temperature (see DIN 4108 Supplementray Sheet 2) All methods constitute an estimation ultimately; neve
- Basic principle for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation
- -value represents the difference between the thermally interrupted component and the uninterrupted comp... essential that the linear reference is adhered to all throughout. If interior references are used in th... ng the surface temperatures is similar and can usually take place using the same model as for calculati... de space. The reason for this is that wardrobes, wall coverings, curtains and the like reduce convectio
- Thermal comfort
- desirable heat out. This means that the floor and all interior walls stay at the same pleasant temperature - year round.\\ \\ |{{:picopen:3warmfenster_therm... mage of a Passive House window from the inside.\\ All surfaces (window frame, casements, and glazing) a... ntly warm (above 17 °C). The temperature doesn't fall\\ below 15 °C even at the glass edge.**| \\ **Thi
- Thermal Bridges @basics:building_physics_-_basics:thermal_bridges
- Thermal bridges catalogue for brick and concrete walls]] * [[.:window_installation_thermal_bridges_catalogue|Window installation thermal bridges catalogue]]