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basics:building_physics_-_basics:thermal_comfort:thermal_comfort_parameters [2020/08/13 11:27] – [Thermal comfort parameters] wfeistbasics: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.  Living comfort mainly depends on the "thermal comfort". This has been well-researched and the results have been incorporated into international standards (DIN ISO 7730). A large part of the information available to us today is due to the work of the Danish scientist [[http://en.wikipedia.org/wiki/P._Ole_Fanger|P. O. Fanger (Wikipedia Seite)]].\\ 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.  Living comfort mainly depends on the "thermal comfort". This has been well-researched and the results have been incorporated into international standards (DIN ISO 7730). A large part of the information available to us today is due to the work of the Danish scientist [[http://en.wikipedia.org/wiki/P._Ole_Fanger|P. O. Fanger (Wikipedia Seite)]].\\
  
-In Passipedia we also have a [[phi_publications:pb_25:comfort_criteria_according_to_international_standards_especially_for_use_in_passive_houses|comprehensive explanation of Fangers comfort research and ISO 7730]] for those interested in the scientific background. +In Passipedia we also have a [[phi_publications:pb_25:comfort_criteria_according_to_international_standards_especially_for_use_in_passive_houses|comprehensive explanation of Fangers comfort research and ISO 7730]] for those interested in the scientific background [5],[6]
  
 [{{:picopen:fig._1_air_movement_near_to_a_passive_house_window.jpg?520 | **Fig. 1** Air movement near to a Passive House window: Due to the small temperature difference between window surface and room 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 maximum air speed is a barely noticeable 0.11 m/s. If the insulating value of the window is worse, then air speed rises to disturbingly high values. Therefore it is recommended, with "normal windows", to position a heating element under the window.(CFD simulation: J. Schnieders, PHI)}}] [{{:picopen:fig._1_air_movement_near_to_a_passive_house_window.jpg?520 | **Fig. 1** Air movement near to a Passive House window: Due to the small temperature difference between window surface and room 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 maximum air speed is a barely noticeable 0.11 m/s. If the insulating value of the window is worse, then air speed rises to disturbingly high values. Therefore it is recommended, with "normal windows", to position a heating element under the window.(CFD simulation: J. Schnieders, PHI)}}]
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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**.  It can be determined by Fanger’s equation, documented in ISO 7730 (see also [[phi_publications:pb_25:comfort_criteria_according_to_international_standards_especially_for_use_in_passive_houses#Appendix: Calculation of the PMV according to DIN EN ISO 7730|Fangers comfort equation]].  Furthermore, according to this standard it is essential that+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**.  It can be determined by Fanger’s equation, documented in ISO 7730 (see also [[phi_publications:pb_25:comfort_criteria_according_to_international_standards_especially_for_use_in_passive_houses#Appendix: Calculation of the PMV according to DIN EN ISO 7730|Fangers comfort equation]]). Furthermore, according to this standard it is essential that
  
     * the sultriness limit in relation to the air humidity is not exceeded,     * the sultriness limit in relation to the air humidity is not exceeded,
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 [[Planning:thermal_protection:windows:Types of glazing and their specific values]]  {{:picopen:members_only.png?25|}} [[Planning:thermal_protection:windows:Types of glazing and their specific values]]  {{:picopen:members_only.png?25|}}
 +
 +[[phi_publications:pb_25:comfort_criteria_according_to_international_standards_especially_for_use_in_passive_houses| A comprehensive explanation of Fangers theory of "thermal comfort" and the implementation in ISO 7730]] [5],[6]
  
 [[Basics:Summer|Thermal comfort - in summer too]] [[Basics:Summer|Thermal comfort - in summer too]]
  
  
-==== 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); Beuth Verlag, Berlin 1987.
 +
 +[ 6 ] Fanger, P.O.: Thermal Comfort. Analysis and Applications in Environmental Engineering; USA: New York 1972, © P.O. Fanger 1970.
  
  
  
basics/building_physics_-_basics/thermal_comfort/thermal_comfort_parameters.1597310854.txt.gz · Last modified: 2020/08/13 11:27 by wfeist