2.3 Solar Radiation Analysis

from Building Performance Analysis Report (BIM)

Application & Software Tools

Eastern Façade

Eastern façade contains cantilever from 1000mm to 2000mm which acts as sun shading device from the opposite office building which might potentially reflect unwanted daylight into the building.

Southern Façade

On the ground floor level, the floor to ceiling height is 8000mm high which causes the excessive amount of solar radiation into the lobby and the outdoor of the lobby

Solar Radiation

Solar radiation hits onto the surface of the building can result in a thermal heat gain. However, this renewable energy resource can be harvested through PV

Solar Radiation Analysis

Based on my solar radiation analysis, the office building receive a cumulating insolation amount of 2,806,716 kWh with 331 kWh/m2 .

First Floor to Forth Floor

Ground

Outdoor space are surrounded with light vegetation However, it does not provide enough shades for the building. Without any façade on the curtain wall, the building still obtain excessive amount of heat gain from the south and the west façade. Heat gain occurs especially during morning and noon

From the first floor to the fourth floor, the solar radiation here are well achieved, although the opposite building could have reflected solar radiation into the building from the east. However, the amount needed for west façade is still a bit excessive

Ground Floor and Mezzanine Floor

Space on mezzanine floor only reach a lux average of 233 . 50% of the ground floor level has only reach an average of 279.8 lux

(Insufficient amount of luminous)

2.4 Daylighting analysis

Ground Floor and Mezzanine Floor

During the afternoon Mezzanine floor and ground floor both achieved sufficient Lux average according to MS1525 348 5 lux average (Mezzanine Floor) and 384 4 lux average (Ground Floor) Due to afternoon daylight intensity is greater than morning 9a m light intensity

Ground Floor and Mezzanine Floor

However, in the evening(5p m ) both ground floor and mezzanine floor did not achieve targeted lux average 116 7 lux average (mezzanine floor) and 122.9 lux average (ground floor) This is due to evening daylight intensity is weaker than both morning and afternoon

First Floor to Fourth Floor

Morning(9a m ) office space has only achieve 162 7 lux average Which is considered as insufficient However, there are still glares coming from south , east, and west

First Floor to Fourth Floor

A slight improvement can be seen but it is still insufficient Though afternoon 12p m has greater daylight intensity compared to morning In order to improve the lux average of the office space, skylight can be implemented on the center of the floor.

First Floor to Fourth Floor

In the evening, Lux average dropped to 74.7. Active design such as LED lighting can be implemented as it give better quality of light compared to CFL bulbs.

Ground floor and mezzanine floor

It can be seen that the west and south façade has high glare issues Which can cause thermal heat gain into the interior spaces

Shading devices such as adjustable louvres can be implemented in order to control the amount of glare entering the building.

0 -10 lux

Artificial lighting are required for spaces that receive 0 lux of daylighting Skylight can also be implemented to every floor for working space that receives less than the targeted Lux average

Recommended average luminance level.