Abdel-Gwad, Mohamed:
ISBN 9783862471768

Designing of Zero Energy Office Buildings in Hot Arid Climate # Pb., 190 S., 320 Abb., davon 269 in Farbe; 38 Tab., davon 16 in Farbe.


SCHLAGWORTE:
Zero Energiy Office Building
Null-Energie-Bürogebäude
Mixed Mode Ventilation
Mixed-Modus-Lüftung
Co 2-Demand-Control Ventilation
Passive Night Cooling
Passive Nachtauskühlung
External Shading Devices
Photovoltaic
Photovoltaik

The designing of office buildings by using large glass areas to have a transparent building is an attractive approach in the modern office building architecture. This attitude increases the energy demand for cooling specially in the hot arid region which has long sun duration time, while the use of small glazing areas increases the energy demand for lighting. The use of uncontrolled natural ventilation increases the rate of hot ambient air flow which increases the building energy demand for cooling. At the same time, the use of mechanical ventilation to control the air change rate may increase the energy demand for fans.
Some ideas such as low energy design concept are introduced for improving the building energy performance and different rating systems have been developed such as LEED, BREEAM and DGNB for evaluating building energy performance system. One of the new ideas for decreasing the dependence on fossil fuels and improving the use of renewable energy is the net zero-energy building concept in which the building generates enough renewable energy on site to equal or exceed its annual energy use.
This work depends on using the potentials of mixing different energy strategies such as hybrid ventilation strategy, passive night cooling, passive chilled ceiling side by side with the integrating of photovoltaic modules into the building façade to produce energy and enrich the architectural aesthetics and finally reaching the Net Zero Energy Building. There are different definitions for zero energy buildings, however in this work the use of building-integrated Photovoltaic (BIPV) to provide the building with its annual energy needs is adopted, in order to reach to a Grid-Connected Net-Zero Energy Office Building in the hot arid desert zone represented by Cairo, Egypt.

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