Zdrav zrak v notranjosti in energetsko učinkovite rešitve za ogrevanje, prezračevanje in klimatizacijo
Vsi preživljamo znaten del svojega življenja v zaprtih prostorih, kako pogosto pa razmišljamo o tem, kakšen vpliv ima kakovost zraka v notranjosti (IAQ) na našo produktivnost, dobro počutje ali zdravje? Sistemi za ogrevanje, prezračevanje in klimatizacijo se pogosto nameščajo za vzdrževanje ravni udobja v zgradbah, koristi za zdravje tistih, ki v njih bivajo, in energetska učinkovitost zgradbe pa so običajno slabše razumljene. Centralni klimati se lahko uporabljajo hkrati za reševanje vprašanj trajnosti kot tudi vprašanj kakovosti zraka v notranjosti. Belimo zagotavlja celo paleto inovativnih rešitev za optimizacijo nadzora in krmiljenja sistemov ogrevanja, prezračevanja in klimatizacije ter kakovosti zraka v notranjosti. Naš okvir, Sedem ključnih točk zdravega zraka v notranjosti, zagotavlja dragocene podatke o tem, kako naprave za ogrevanje, prezračevanje in klimatizacijo lahko prispevajo h kakovosti zraka v notranjosti zgradb brez poslabšanja energetske učinkovitosti.
To temo smo s prispevki strokovnjakov za kakovost zraka v notranjosti povzeli v brošuri. Uživajte v branju:
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The Seven Essentials of Healthy Indoor Air
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Splošne informacije o kakovosti zraka v notranjosti
Pomembni kazalniki kakovosti zraka v notranjosti
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Vlaga Vlažnost je mera za vlago v zraku in naj bo za optimalno udobje med 40 in 60 odstotki relativne vlažnosti. Nižja vlažnost lahko povzroči izsušitev kože, oči in dihalnih poti, prevelika vlažnost pa lahko olajšuje rast plesni. |
Ogljikov dioksid (CO2) Koncentracija CO2 v notranjosti je pogosto v soodvisnosti z zasedenostjo ali nivojem dejavnosti v omejenem prostoru. Pri koncentracijah, ki presegajo 1000 ppm, bodo ljudje v notranjih prostorih opazili zmanjšanje produktivnosti in, kar je še bolj pomembno, lahko pride do resnih zdravstvenih zapletov. |
Temperatura Temperatura je pogosto tesno povezana z vlažnostjo in vpliva na dobro počutje, produktivnost in zdravje. Idealna temperatura v prostoru je pogosto subjektivna, nanjo pa vplivajo tudi nivo dejavnosti, zasedenost prostora, vlažnost in hitrost zraka. |
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Hitrost zraka lahko močno vpliva na temperaturo in udobje v zaprtih prostorih, pri večji hitrosti pa se poveča izmenjava toplote med ljudmi in okoliškim zrakom. Nasprotno lahko premajhen pretok zraka omogoči nabiranje onesnaževal v zraku, na primer hlapnih organskih spojin. |
Hlapne organske spojine (VOC) Hlapne organske spojine so organske spojine, ki vsebujejo ogljik in lahko izhlapevajo pri sobni temperaturi. V notranjih prostorih obstajajo številni viri potencialno škodljivih hlapnih organskih spojin, vključno s čistili, barvami, mehčalci, tiskalniki in lepili. |
Trdni delci Mikroskopski trdni ali tekoči delci se lahko razpršijo v zraku iz virov, kot so cvetni prah, prah in spore plesni. Ti drobni delci lahko vstopijo v naša pljuča in povzročijo alergične reakcije, draženje ali okužbe. |
Visoko zmogljivi sistemi za ogrevanje, prezračevanje in klimatizacijo vzpostavijo zdravo okolje v notranjosti z dovajanjem zunanjega zraka, filtriranjem in nadzorom vlažnosti. Ena od naših odgovornosti je tudi to, da prispevamo h kakovosti zraka v notranjosti.
CEO Belimo
Vaš partner za kakovost zraka v notranjosti
Belimo obljublja, da bo zaupanja vreden partner na področju kakovosti zraka v notranjosti in da bo dobavljal zanesljive in energetsko učinkovite rešitve za ogrevanje, prezračevanje in klimatizacijo, ki zagotavljajo udobje, varnost in visoko kakovost delovanja sistema. S svojimi kupci sodelujemo kot ekipa, tako da lahko zagotavljamo rezultate, ki ustrezajo potrebam vsakega projekta – velikega ali majhnega. Takšen sodelovalni pristop je eden od številnih razlogov, da smo po vsem svetu postala zaupanja vredno ime in vodilno podjetje na področju naprav za ogrevanje, prezračevanje in klimatizacijo v polju.
Izdelki za boljšo kakovost zraka v notranjosti
Zagotavljanje kakovosti zraka v notranjih prostorih zahteva večplastni pristop. Poleg natančne zasnove sistema in rednega vzdrževanja so ključni zanesljivi izdelki, ki jih je mogoče gladko integrirati v sisteme za upravljanje zgradb in platforme interneta stvari. Belimo ponuja celovito in inovativno paleto krmilnih naprav za ogrevanje, prezračevanje in klimatizacijo za vzdrževanje zdrave kakovosti zraka v notranjosti brez poslabšanja energetske učinkovitosti.
Odkrijte izdelke za zdravo kakovost zraka v prostoru:
| Indoor Air Quality Duct Sensors |  |
Measurement of Temperature, humidity, enthalpy, dew point,CO2, and VOC |
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Shop Duct Sensors |
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| Room Sensors |  |
Measurement of temperature, humidity, dew point, and CO2 |
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Shop Room Sensors and Switches |
| Air Pressure Sensorsand Switches |  |
Measurement ofdifferential pressure and volumetric flow |
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Shop Pressure Sensors | VAV Solutions |  |
Measurement and control of volumetric flow |
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Shop VAV Solution |
| Damper Actuators |  |
Motorization of air dampers |
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Shop Damper Actuators | Energy Valve |  |
Certified energy measurement and controls |
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Shop Energy Valves |
Zgodba o uspehu
Preprost nadzor kakovosti prostorskega zraka z internetom stvari
Emch+Berger ImmoConsult AG, Zürich (Švica)
V letu 2020, je nepremičninsko podjetje Emch+Berger ImmoConsult AG potrebovalo sodobno rešitev za nadzor kakovosti zraka v prostorih s sistemi za ogrevanje, prezračevanje in klimatizacijo v svojih popolnoma novih pisarnah v Zürichu. Preverite, kako so namestili Belimove komponente za ogrevanje, prezračevanje in klimatizacijo s podporo interneta stvari za preprosto avtomatizacijo zgradbe, s čimer so zagotovili udobno delovno okolje.
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Reference – Emch+Berger ImmoConsult AG, Switzerland
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Individualizirana izkušnja pacienta
Univerzitetna bolnišnica Zürich (Švica)
V letu 2019 je Univerzitetna bolnišnica Zürich (UHZ) odprla začasno stavbo s specializiranimi oddelki za opekline. Organizacija je želela vsako sobo opremiti z ločenimi krmilnimi zankami, ki bi omogočale individualno nastavljanje vlažnosti in temperature tako, da bi ustrezali potrebam vsakega pacienta. Preverite, kako je montaža Belimovih komponent to izpolnila pod časovnim pritiskom in ob ostalih izzivih bolnišničnega okolja.
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Reference – University Hospital Zurich, Switzerland
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Prihodnost udobja v virtualnem svetu
Liuzhou SoReal Spiral Paradise (Kitajska)
Med razvojem se je prvi tematski park navidezne resničnosti (VR) na jugu Kitajske soočal z izzivom vzdrževanja kakovosti zraka v notranjosti za vse obiskovalce v svojih aktivnih arenah. Namesto, da bi vrgli puško v koruzo, je podjetje naredilo korak naprej in namestilo več kot 100 Belimovih senzorjev in energijskih ventilov kot del najsodobnejšega sistema za ogrevanje, prezračevanje in klimatizacijo, ki omogoča prilagajanje sistemskih parametrov nihanjem v obsegu ljudi in nivoju aktivnosti. S tem je bil zagotovljen dinamični nadzor nad kakovostjo zraka, energetsko učinkovitostjo in toplotnim udobjem po vsej zgradbi.
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Reference - SoReal Spiral Paradise, China
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FAQ
Most people spend approximately 90% of their time indoors, and breathe 12,000 liters of air per day. It is therefore important to understand the powerful influence that indoor air quality has on our wellbeing.
The "sweet spot" for indoor air humidity is 40 to 60%, as this dramatically reduces the transmission risk of diseases, and enables the body to better repair and protect itself.
At air humidity below 40%, the water droplets with viruses become smaller and can travel through large open office spaces and survive for hours. Furthermore, many bacteria and viruses become more virulent when exposed to dry air. If the indoor relative humidity is above 60%, mold and mildew begin to form and these can pose health problems.
CO2 concentration of more than 1000 ppm (parts per million) decreases the brain's ability to concentrate; starting at 2000 ppm and higher, it can lead to fatigue or even headaches. CO2 level in indoor air is an excellent indicator of space usage and occupancy and therefore an indirect way of potential bio-contamination, such as COVID-19 viruses. If the CO2 value is high due to increased occupancy and limited air exchange, there is a high potential risk from infectious aerosols.
As air circulation does not filter the air nor supply fresh air into the room, it is not a good solution either. On the contrary, strong unfiltered air movements further spread particles and pathogens within the space. A ventilation system with central air conditioning is needed to provide fresh, filtered, and conditioned air to the zones.
Air handling units usually supply air to several zones in a building. It is important that each room receives the exact amount of fresh air it needs. If the number of people in a room increases, e.g., in a larger meeting room, you would expect the air supply to increase accordingly. Similarly, the polluted air must also be removed from the room. To ensure this, zones and rooms must be supplied individually with variable air volume (VAV) based on air quality measurements.
The polluted and contaminated air must be removed from the room. It is important that each room receives the exact amount of fresh air it needs to prevent an increase in the concentration of infectious aerosols. To ensure this, zones and rooms must be supplied individually with variable air volume (VAV).
To prevent contaminants from entering indoor spaces through supply air ducts, suitable filters must be integrated into the air handling unit and must be replaced when the contamination of the filter increases. Pressure sensors and dynamic airflow measurements can be used to measure the degree of usage or contamination of the filters.
Central air handling units (AHUs) and air distribution systems can centrally control the quality of the supplied air at any time. Temperature, humidity, and air quality sensors permanently measure the conditions of the supplied air and deviations are instantly detected and corrected.
Indoor air quality can be measured either in the room or in the extract (return) air duct. Measuring the supply air doesn't reflect the indoor air quality situation in the room, but the fresh and conditioned air supplied by the air handling unit.
If the indoor air quality is measured in the room, attention must be paid to the mounting location to ensure proper and correct measurement. The installation should be at a height of around 1.5m (5 feet) and at least 50cm (20 inches) from the adjacent wall. It should not be exposed to direct sunlight nor mounted on external walls. Furthermore, avoid installations above radiators, directly adjacent to doors, in recesses (e.g. shelves) and behind curtains.
Alternatively, the measurement can take place in the duct which extracts the used air from the room. While the correct placement of a room sensor requires more attention, the advantage over a duct sensor is that, thanks to its exposure to the occupants, it allows direct, visual, thermal and indoor air quality feedback by means of a display or a traffic light indication.
In systems with variable air volumes for demand-controlled ventilation, the differential pressure fluctuates according to the airflow. In this situation, a pressure switch is not suitable for monitoring the filter status; a differential air pressure sensor is the solution. Air pressure switches are a cost-efficient and reliable way to monitor filters in systems with constant air volume flow.
Udeležite se našega usposabljanja in spletnih seminarjev o kakovosti zraka v notranjosti
Cilj naših spletnih seminarjev in programov usposabljanj za ogrevanje, prezračevanje in klimatizacijo je izpopolnjevanje izkušenih serviserjev, upravljavcev objektov, distributerjev, izvajalcev nadzora in lastnikov zgradb glede resničnih problemov kakovosti zraka v notranjosti in rešitev zanje ter o pomenu za zdravje ljudi in učinkovito delovanje sistemov. Naša ponudba je organizirana po vsem svetu.
Videoposnetki o kakovosti zraka v notranjosti
Making the invisible visible – First WHO Europe Indoor Air Conference
The awareness of the impact of healthy indoor air quality on building inhabitants is constantly increasing. Belimo was pleased to co-sponsor the first Indoor Air Conference hosted by WHO Europe, the Swiss Government and the Geneva Health Forum in Bern on September 20th, 2023. Leading experts, scientists and decision-makers from the fields of environmental technology, health and indoor air research as well as government representatives discussed the pivotal role of indoor air quality on our health.
The conference documentation, including scientific presentations and background articles, is available here:
First WHO Europe Indoor Air Conference Resources (genevahealthforum.com)
Television broadcast by Nano on how healthy indoor air can reduce health risks:
Wie Luft krank macht - Saubere Innenraumluft kann Krankheiten verhindern - Wissen - SRF
(available in German only)
