ZEMCH 2015 - International Conference Proceedings | Page 632

The folowing figures show the solar stress on the facade. This solar stress study shows the amout
of radiation received by the zones. The cafe cafe restaurant receives 465w on June 1st at 7:00 am on
its east oriented façade, which means there is an excessive amout of solar radiation and heat inside the building. The amount of solar stress differs with the zone orientation, timing and month.
The following figures below identifies the amount of shading required for the building inorder to
achieve the thermal comfort inside the building. On June 1st at 7:00 am 42% of the east oriented
zone is shaded, which means we need an intensive shading system.
Project Description
Al Manahil cafe restaurant consist of 19 outdoor seating and 28 indoor seating, two washrooms,
dish washer area, and a preparation area. The whole cafe restaurant is 163 meter square, with 9
opening (glazing). Each glazing has a width of 1.960m and a height of 2.600m. There are two entrances for the cafe restaurant, one on the south and the other entrance is on the east.

Figure 7: Cafe restaurant site plan (left) and floor plan (right) (Emaar 2008)
Some sun studies and calculations were conducted on this case study in Autodesk Ecotect Analysis in order to measure the amount of heat and daylight in this cafe restaurant. From these studies,
we realized that the grid color for the cafe restaurant zone turned into yellow and the daylight
factor was 7200 lux. This is an indicator of excessive daylight in to the zone, which results in glare,
heat and incorrect light distribution. This excessive daylight resulted from the number of glazing
(openings), size of glazing, and materials used for the glazing (single glazed windows) in the zone.
These factors led to excessive heat inside the zone, which requires high cooling loads in the zone
in order to achieve the comfort level in the zone.

Simulation Analysis and Results
The analysis and results were derived from lessons learned from the Tridacna clam’s life mechanism, These lessons were applied as design strategies in the selected case study building (in this
case, in the cafe restaurant building) in order to achieve the required results. The results were
achieved with the help of various simulation methods like the Ecotect analysis, ArchiCAD and
climate consultant.
Strategy 1 – Light Shelf
Since the building is oriented towards the east, there is an excessive amount of daylight entering
the building; the light entering results in producing heat gain and glare inside the space, which

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ZEMCH 2015 | International Conference | Bari - Lecce, Italy