Man has always striven to create a thermally comfortable environment. This is reflected in
building traditions around the world - from ancient history to present day. Today, creating a
thermally comfortable environment is still one of the most important parameters to be
considered when designing buildings.
But what exactly is Thermal Comfort? It is defined in the ISO 7730 standard as being "That
condition of mind which expresses satisfaction with the thermal environment". A definition
most people can agree on, but also a definition which is not easily converted into physical
parameters.
The complexity of evaluating thermal comfort is illustrated by the drawing. Both persons
illustrated are likely to be thermally comfortable, even though they are in completely different
thermal environments. This reminds us that thermal comfort is a matter of many physical
parameters, and not just one, as for example the air temperature.
Thermal environments are considered together with other factors such as air quality, light and
noise level, when we evaluate our working environment. If we do not feel the everyday
working environment is satisfactory, our working performance will inevitably suffer. Thus,
thermal comfort also has an impact on our work efficiency.
Man has always striven to create a thermally comfortable environment. This is reflected in
building traditions around the world - from ancient history to present day. Today, creating a
thermally comfortable environment is still one of the most important parameters to be
considered when designing buildings.
But what exactly is Thermal Comfort? It is defined in the ISO 7730 standard as being "That
condition of mind which expresses satisfaction with the thermal environment". A definition
most people can agree on, but also a definition which is not easily converted into physical
parameters.
The complexity of evaluating thermal comfort is illustrated by the drawing. Both persons
illustrated are likely to be thermally comfortable, even though they are in completely different
thermal environments. This reminds us that thermal comfort is a matter of many physical
parameters, and not just one, as for example the air temperature.
Thermal environments are considered together with other factors such as air quality, light and
noise level, when we evaluate our working environment. If we do not feel the everyday
working environment is satisfactory, our working performance will inevitably suffer. Thus,
thermal comfort also has an impact on our work efficiency.
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