basics:building_physics_-_basics:thermal_comfort:thermal_comfort_parameters
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basics:building_physics_-_basics:thermal_comfort:thermal_comfort_parameters [2019/01/31 09:52] – cblagojevic | basics:building_physics_-_basics:thermal_comfort:thermal_comfort_parameters [2020/08/13 21:18] (current) – [Thermal comfort parameters] wfeist | ||
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Many subjective perceptions determine living comfort, even the colour of the surroundings plays a certain role – particularly for the mood of person who thereby expresses his or her perceptions. | Many subjective perceptions determine living comfort, even the colour of the surroundings plays a certain role – particularly for the mood of person who thereby expresses his or her perceptions. | ||
- | [{{: | + | In Passipedia we also have a [[phi_publications: |
+ | |||
+ | [{{: | ||
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* air temperature | * air temperature | ||
+ | |||
* the temperature of the surrounding surfaces, this can also be summarised as the " | * the temperature of the surrounding surfaces, this can also be summarised as the " | ||
+ | |||
* air speed and turbulence | * air speed and turbulence | ||
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* air humidity.\\ | * air humidity.\\ | ||
- | There is a complete range of combinations of these four comfort factors where the level of comfort is very good, this is known as the **comfort range**. | + | There is a complete range of combinations of these four comfort factors where the level of comfort is very good, this is known as the **comfort range**. |
* the sultriness limit in relation to the air humidity is not exceeded, | * the sultriness limit in relation to the air humidity is not exceeded, | ||
+ | |||
* air speeds are within closely defined limits (for speeds under 0.08 m/s, the number of dissatisfied due to draughts is less than 6%) | * air speeds are within closely defined limits (for speeds under 0.08 m/s, the number of dissatisfied due to draughts is less than 6%) | ||
+ | |||
* the difference between radiant temperature and air temperature remains small, | * the difference between radiant temperature and air temperature remains small, | ||
+ | |||
* the difference in the radiant temperature in various directions remains small (less than 5 °C, known as the " | * the difference in the radiant temperature in various directions remains small (less than 5 °C, known as the " | ||
+ | |||
* the indoor air temperature stratification is less than 2 °C between the head and ankles of a seated person, | * the indoor air temperature stratification is less than 2 °C between the head and ankles of a seated person, | ||
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* the perceived temperatures in the room change by no more than 0.8 °C at different locations. | * the perceived temperatures in the room change by no more than 0.8 °C at different locations. | ||
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\\ | \\ | ||
- | The practical consequence: | + | The practical consequence: |
- | θ area - θ Oberfl ≤ 3.5 °C | + | |
- | still holds true. These small temperature differences have the following affects on the comfort criteria: | + | θ< |
- | | + | still holds true. These small temperature differences have the following effects on the comfort criteria: |
+ | |||
+ | | ||
* If the external surface temperature is not more than 3.5 °C below the ambient temperature, | * If the external surface temperature is not more than 3.5 °C below the ambient temperature, | ||
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[[Planning: | [[Planning: | ||
+ | |||
+ | [[phi_publications: | ||
[[Basics: | [[Basics: | ||
- | ==== Literature | + | ==== References |
\\ | \\ | ||
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[ 4 ] Hermelink, Andreas: Do desires become true? Temperatures in passive houses for tenants; in: AkkP proceedings NR. 25, Darmstadt, 2004 | [ 4 ] Hermelink, Andreas: Do desires become true? Temperatures in passive houses for tenants; in: AkkP proceedings NR. 25, Darmstadt, 2004 | ||
+ | |||
+ | [ 5 ] DIN EN ISO 7730: Gemäßigtes Umgebungsklima (Moderate thermal environments); | ||
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+ | [ 6 ] Fanger, P.O.: Thermal Comfort. Analysis and Applications in Environmental Engineering; | ||
basics/building_physics_-_basics/thermal_comfort/thermal_comfort_parameters.txt · Last modified: 2020/08/13 21:18 by wfeist