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Posts Tagged ‘history’

December 26, 2016

What is ventilation? Why do we ventilate?

Ventilation is… In medicine: to exchange air in the lungs In latin: “ventilare” is to “expose to the wind” Today: it means to bring in outdoor air and replace indoor air of the occupied space Is the same as IAQ (indoor air quality)? Why do we ventilate? Health, odor, energy, moisture, durability, safety, sustainability, thermal […]...

AUTHOR: Petra Vladykova Bednarova

November 23, 2016

Health in our homes!

Health in our homes Our health is affected by the air quality we have in our homes. In addition to indoor air we breathe (link here), moisture (read more here), pollutions…...

AUTHOR: Petra Vladykova Bednarova

September 29, 2016

History of ventilation: “Enough ventilation to keep the air smelling sweet” for hospitals by Florence Nightingale!

Enough ventilation to keep the air smelling sweet In 1850, Florence Nightingale visited the military hospitals of the Crimean war and found them dirty and dangerous. The famous saying is…...

AUTHOR: Petra Vladykova Bednarova

September 26, 2016

Famous women engineering the Brooklyn Bridge!

Civil engineer Emily Warren Roebling (September 23, 1843 – February 28, 1903) is one of the most inspiring women engineers in hisotry. She became famous after taking over from her…...

AUTHOR: Petra Vladykova Bednarova

September 22, 2016

History of ventilation: Hospitals and health-care are using lots of energy!

Hospitals use 2-3 times more energy than other commercial buildings. And HVAC energy is 2/3 to 3/4 of their energy use. Heat energy is the largest consumption and much of…...

AUTHOR: Petra Vladykova Bednarova

August 17, 2016

History of ventilation: Mechanically ventilated apartment blocks and new air flow principles in 1930!

Until the 1930s, apartment blocks around the world were ventilated exclusively using natural ventilation. However, as buildings became higher, one of the dilemmas caused by natural ventilation became clear –…...

AUTHOR: Petra Vladykova Bednarova

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June 14, 2016

History of ventilation: Air conditioning units become common in the USA!

In 1920s after the tremendous breakthrough for electricity at the beginning of the 1900s, electrically-powered equipment began to be installed on a grand scale, especially in the USA where it…...

AUTHOR: Petra Vladykova Bednarova

June 10, 2016

History of ventilation: High rooms counteract poor air quality!

In 1880, primarily for hygiene reasons, the height of rooms had been gradually raised over the years. This made it possible to install high windows with separate, openable frames of…...

AUTHOR: Petra Vladykova Bednarova

December 7, 2015

History of ventilation: Measures to reduce the risk of infection in hospitals!

One of the first hospitals that took to the latest findings about air purity and air-borne diseases were the Navy Hospital in Plymoth, England. Departments were isolated from each other…...

AUTHOR: Petra Vladykova Bednarova

December 2, 2015

History of ventilation: Large blower fans ventilate prisons!

In Newgate Prison in London persuaded prison authorities to take up the ventilation holes in the prison cell walls. A large blower was installed to press the fresh air in…...

AUTHOR: Petra Vladykova Bednarova

November 20, 2015

History of ventilation: Ventilation is shaping silhouettes of cities and urban areas!

In 1700’s ventilation hoods in the towers becomes the “default” in Europe. The fuel-powered ventilation technology with high hoods and towers became popular in public buildings throughout Europe which clearly…...

AUTHOR: Daniel Olsson