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The
challenge set by the European Commission with regard to nearly Zero-Energy
Buildings should necessarily evoke a wider scenario, not only in terms of time
but also in terms of scale of the problem. Indeed, nZEBs
will be regulated until 2020, but the common perspective is already the
creation of a vision towards 2050. Moreover the Commission is increasingly moving
the question from the single building level to the building’s district and to
the city. In practice, the direction to take in order to provide a strong lead in
promoting a reduction of the building environmental impact is nowadays the post-carbon city one. This future projection of cities carbon
free with respect to the building stock should have a decisive effect on the
building concept, in terms of building elements, structures, building systems
but also, and above all, in terms of sociology, with respect to the interaction
modes between end-users and the whole building. Nowadays this challenge is
often analyzed only with regard to its energetic and economical aspects. A new
kind of analysis, whose drivers become motivational and behavioral, reveals to
be necessary in order to win this global challenge. In this visionary process
of a path towards the post carbon city it is important to reflect upon the
technological and innovative perspectives related to air conditioning, with reference
to their current and future applications to buildings.
In this
Special Issue our aim is to deal with new HVAC frontiers, by analyzing what
currently is realized as innovative experience, but also what can be explored
as innovation of the building envelope-system unit.
Figure 1. North
Corea, pollution in Pyonyang, 2005 (picture: PETER PARKS/AFP/Getty Images)
Figure 2.
China, Shenzhen Building International Low-Carbon City project (from:
http://www.globalmayorsforum.org/)
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