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planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals

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planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals [2014/09/18 18:19] – external edit 127.0.0.1planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals [2022/03/15 16:59] (current) – [See also] corinna.geiger@passiv.de
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 ===== Identifying energy-conservation potential ===== ===== Identifying energy-conservation potential =====
  
-The baseline study on implementing the Passive House concept in hospitals ([[http://www.passiv.de/downloads/05_krankenhaus_grundlagenstudie.pdf|Download]] of the study //- only available in German language -//) studied energy-conservation potential in the planning stage [[planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals#references|[Kah et al 2013]]]. This paper presents the insights gained in the baseline study regarding energy-conservation potential in ventilation systems used in hospitals within the context of hygiene requirements. \\+The [[planning:non-residential_passive_house_buildings:ph_hospitals:baseline_study_-_implementing_the_passive_house_concept_in_hospitals|baseline study on implementing the Passive House concept in hospitals]] studied energy-conservation potential in the planning stage [[planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals#references|[Kah et al 2013]]]. This paper presents the insights gained in the baseline study regarding energy-conservation potential in ventilation systems used in hospitals within the context of hygiene requirements. \\
  
 Certain areas of hospitals require great air flows, with especially high air exchange rates found in operation rooms, labs, and areas where utensils are sterilized. Ventilation systems therefore make up a significant share of total energy demand. In addition, a large number of individual components are needed to filter and purify the air in compliance with hygienic and functional requirements for individual hospital areas (especially operating rooms). The sum of these individual pressure losses has a great impact on ventilators' power consumption. \\ Certain areas of hospitals require great air flows, with especially high air exchange rates found in operation rooms, labs, and areas where utensils are sterilized. Ventilation systems therefore make up a significant share of total energy demand. In addition, a large number of individual components are needed to filter and purify the air in compliance with hygienic and functional requirements for individual hospital areas (especially operating rooms). The sum of these individual pressure losses has a great impact on ventilators' power consumption. \\
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 ===== Preventing high pressure losses in the duct network ===== ===== Preventing high pressure losses in the duct network =====
  
-The baseline study on implementing the Passive House concept in hospitals ([[http://www.passiv.de/downloads/05_krankenhaus_grundlagenstudie.pdf|Download]] of the study //- only available in German language -//) looked into ways of reducing pressure losses in individual components. Target values for ventilation units' power consumption were derived from the feasible individual pressure losses. If components are properly dimensioned, the target value can be 0.45 Wh/m³ even in hospitals. Air filtration often accounts for a lot of the overall pressure loss in a ventilation system. The greater hygiene requirements in hospitals make the situation even more difficult because the filters required often have two or three stages. \\+The baseline study on implementing the Passive House concept in hospitals looked into ways of reducing pressure losses in individual components. Target values for ventilation units' power consumption were derived from the feasible individual pressure losses. If components are properly dimensioned, the target value can be 0.45 Wh/m³ even in hospitals. Air filtration often accounts for a lot of the overall pressure loss in a ventilation system. The greater hygiene requirements in hospitals make the situation even more difficult because the filters required often have two or three stages. \\
  
 [[planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals#references|[DIN EN 13779]]] specifies recommendations for maximum final pressure losses from filters ranging from 100 Pa to 250 Pa for M7 filters. To reduce energy demand for filtration, final pressure losses have to be lowered considerably. Filters need to be replaced at least once a year, and the initial pressure loss needs to be reduced in order to additionally limit final pressure losses. If the filters are properly dimensioned, initial pressure losses for M7 filters can remain at 50 Pa, as the ventilation devices certified as Passive House components with outputs greater than 600 m³/h show. Some devices even have much lower initial pressure losses. \\ [[planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals#references|[DIN EN 13779]]] specifies recommendations for maximum final pressure losses from filters ranging from 100 Pa to 250 Pa for M7 filters. To reduce energy demand for filtration, final pressure losses have to be lowered considerably. Filters need to be replaced at least once a year, and the initial pressure loss needs to be reduced in order to additionally limit final pressure losses. If the filters are properly dimensioned, initial pressure losses for M7 filters can remain at 50 Pa, as the ventilation devices certified as Passive House components with outputs greater than 600 m³/h show. Some devices even have much lower initial pressure losses. \\
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 ===== Summary  ===== ===== Summary  =====
  
-The baseline study on implementing the Passive House concept in hospitals ([[http://www.passiv.de/downloads/05_krankenhaus_grundlagenstudie.pdf|Download]] of the study //- only available in German language -//) shows that a reduction in pressure losses in individual components, along with proper dimensioning and control of demand for outdoor air commensurate with actual demand, considerably reduces the energy consumption of hospital ventilation systems. If components are properly dimensioned, the target value can be 0.45 Wh/m³ even in hospitals. \\ +The [[planning:non-residential_passive_house_buildings:ph_hospitals:baseline_study_-_implementing_the_passive_house_concept_in_hospitals|baseline study on implementing the Passive House concept in hospitals]] shows that a reduction in pressure losses in individual components, along with proper dimensioning and control of demand for outdoor air commensurate with actual demand, considerably reduces the energy consumption of hospital ventilation systems. If components are properly dimensioned, the target value can be 0.45 Wh/m³ even in hospitals. \\
- +
-These findings come from the baseline study on implementing the Passive House concept in hospitals [[planning:non-residential_passive_house_buildings:ph_hospitals:aspects_of_efficient_ventilation_in_hospitals#references|[Kah et al 2013]]]. The study was contracted by the State of Hesse's Ministry of Economics, Transport, and Regional Development and published at www.passiv.de. \\ +
-\\+
  
 ===== References ===== ===== References =====
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 **[ÖNORM 6020]** ÖNORM H 6020, Ausgabe Februar 2007: Lüftungstechnische Anlagen für medizinisch genutzte Räume – Projektierung, Errichtung, Betrieb, Instandhaltung, technische und hygienische Kontrollen; Austrian Standards plus GmbH, Wien \\ **[ÖNORM 6020]** ÖNORM H 6020, Ausgabe Februar 2007: Lüftungstechnische Anlagen für medizinisch genutzte Räume – Projektierung, Errichtung, Betrieb, Instandhaltung, technische und hygienische Kontrollen; Austrian Standards plus GmbH, Wien \\
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 ====== See also ====== ====== See also ======
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 [[phi_publications:international_passive_house_conference_contributions_4|List]] of all released conference proceedings of the 18th International Passive House Conference 2014 in Aachen [[phi_publications:international_passive_house_conference_contributions_4|List]] of all released conference proceedings of the 18th International Passive House Conference 2014 in Aachen
  
-[[http://www.passiv.de/downloads/05_krankenhaus_grundlagenstudie.pdf|Download]] (pdf 5,8 MB) of the long version of the report "Grundlagenstudie zur Umsetzung des Passivhauskonzept in Krankenhäusern" ("Baseline study on implementing the Passive House concept in hospitals") on www.passivehouse.com  //(only available in German language)// 
planning/non-residential_passive_house_buildings/ph_hospitals/aspects_of_efficient_ventilation_in_hospitals.1411057157.txt.gz · Last modified: 2014/09/18 18:19 by 127.0.0.1