Green Technology Annual Report

Carpet Embedded PEX Pipes Services Trunking Screeding Structural Concrete Slab 75 mm 175 mm 25 mm gap between PEX Pipes & Services Trunking 150 mm gap between each PEX Pipes PEX Pipes Before Covered With Structural Concrete Green Building Innovation The GEO building incorporates many innovative features. The floor slab cooling system was the first in Malaysia. It is an innovative cooling system, where 50% of the at cooling comes from the ceiling and the floor by means of chilled radiation and the rest by air volume for each building zone. Two types of radiant cooling system are demonstrated in the building, namely Floor Slab cooling (wet type) and Chilled Metal Ceiling colling (dry type). Chilled water temperature at 18° Celcius was led into the designated floor slabs giving a surface temperature of 21° Celcius at the ceiling and 21.5 at the floor. Floor slabs are cooled early in the morning via embedded cooling pipes. GEO building features various passive green building ideas. Among them are: Building Orientation Roof light/Skylight Insulate interior from external heat using mineral wool, foam and aerated concrete block Optimum orientation with windows and doors faced towards North and South Self-shading design to prevent glare while maximising daylight usage 80 MALAYSIAN GREEN TECHNOLOGY & CLIMATE CHANGE CENTRE ANNUAL REPORT 2019