This thesis deals
with
the micro
-
climatic analysis and
the
improvement of the
energy
efficiency in a typical urban residential built environment in Thessaloniki. The
scope of this
research
is to
assess
the benefits of
coupling
the simulation of both
the built environment as
a whole and
the
building units.
For that reason, the implementation of roadside trees
is
introduced as a possible measure to mitigate Urban Heat Island and improve building energy
performance.
The simulation tool
s used are
ENVI
-
met v.4
[1, 2]
and EnergyPlus
8.8
[3, 4]
;
ENVI
-
met
is a three
-
dimensional (3D) prognostic micro
-
climate model based on
Computational Fluid Dynamics (CFD) and thermodynamics that simulates the conditions in
the exterior area and between buildings
.
On the one hand, although ENVI
-
met is widely used
and validated,
as a micro
-
climate simulation tool,
it
does not have the ability to calculate
indoor energy demand and/or consumption
. Therefore
, EnergyPlus is used, which is
a
Building Energy Simulation (BES) tool
.
Although
EnergyPlus
do
es not have the ability to
deal with the outdoor environment and especially with the thermal effect
of vegetation and
water volumes
, it takes into account
trees
and the built environment
as shading elements.
Therefore, a
one
-
way integration of the two simulation tools is
the minimum requirement
so
that
urban planners, designers and engineers to have a
n adequate comprehension of the
complex interaction between buildings and their
surrounding
micro
-
climate.
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