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Posts Tagged ‘indoor air quality (IAQ)’

July 24, 2018

Health and well-being in indoor environment!

Our environmental requirements: Health, well-being and indoor environment! Human physiology is not adapted to the climatic conditions in temperate and polar latitudes, although parts of these regions have been populated for several thousands of years. The ideal ambient temperature for a naked person at rest is about 29 °C, a climatic condition found in the […]...

AUTHOR: Petra Vladykova Bednarova

February 3, 2017

Why do we warm up the house?

Heat balance and indoor air quality Heat balance means that when all the “free heat” given off by people, appliances and solar radiation is not enough to provide comfortable indoor…...

AUTHOR: Petra Vladykova Bednarova

July 21, 2016

We are able to “design tight”! We haven´t yet learned to “ventilate right”!

New homes rarely performs as well as their designers expect. Findings from Innovate UK´s four-year Building Performance Evaluation (BPE) shows that on average non-domestic buildings use 3,6 times more energy…...

AUTHOR: Petra Vladykova Bednarova

July 20, 2016

How satisfied are you with indoor air quality in your home after renovating it? How often do you air your house if you don´t have a mechanical ventilation?

Some interesting points from a work on renovation of apartment buildings and results from investigation of indoor air quality. The occupants indicated to be more satisfied with the IAQ before…...

AUTHOR: Petra Vladykova Bednarova

July 13, 2016

Airing of the apartments before and after renovation! Energy renovation without additional ventilation is not enough!

The energy use in the existing residential sector that was built in the second half of 20th century is considered a serious problem across the European Union. The current focus…...

AUTHOR: Petra Vladykova Bednarova

July 8, 2016

How often do you open your window? Do you vent enough?

I found another source that confirms my worry about occupants´ health in renovated apartments. It is nice to save energy and money when you renovate the apartment building that you…...

AUTHOR: Petra Vladykova Bednarova

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News

July 1, 2016

Airtight new homes create serious health problems!

In CIBSE Journal in June 2016 this headline caught my eye. It is really a small article about health problems and indoor air quality (IAQ) in new homes. Occupants have…...

AUTHOR: Petra Vladykova Bednarova

March 14, 2016

Why is residential HVAC and IAQ so different from commercial one?

The residential world and occupants are different from other types of buildings such as offices, hotels, etc. The occupant in home has more control over indoor activities and he is…...

AUTHOR: Petra Vladykova Bednarova

January 11, 2016

Indoor air quality, lighting and equipment criteria in upcoming nZEB legislation!

Indoor air quality in buildings and future nZEB legislation plays major role and in order to implement it by 2020, some changes in traditional requirements will be required such as:…...

AUTHOR: Carlos Lisboa

January 4, 2016

Criteria for rational application of air filters must be developed in nZEB!

Air filters introduce a significant pressure drop in the air stream and, therefore require significant amounts of energy to operate. Energy used in fans also increases the energy used in…...

AUTHOR: Carlos Lisboa

October 7, 2015

New seminar: Air quality and numerical modelling, playing a central role in tackling the challenges facing buildings!

On November 20th in Lyon in France Swegon Air Academy will conduct a seminar on air quality and numerical modelling, playing a central role in tackling the challenges facing buildings…...

AUTHOR: Petra Vladykova Bednarova