Sun Path Analysis  

Sun path analysis is at the heart of what our ESD consultants do here at our Singapore office in BroadTech Engineering.
As an ESD consultancy, we enable you to precisely simulate and predict how the relative placement of your building and site positioning relative to the sun impact your building throughout the entire year.
A sun path analysis involves the use of a Stereographic sun path diagrams to establish the relative position of the building site in relation to the sun by reading the solar azimuth and altitude for a particular specific building site location. This helps to analyze the sun’s impact on the building energy modeling.
 

Mapping of Sun paths

Using Sun path analysis to assess the passage of the sun’s path across a building site is important in helping Green building consultants and designers to identify critical site-specific conditions so as to accurately study the implication of the sun’s movement on the building thermal performance as well as to determine the of shadowing effects cast by neighboring buildings, trees and geographical landforms on and around the building site.
Sun Path analysis, when used together with Daylight analysis, helps to provide a comprehensive broader overview of the sun’s path on a building site.
It involves accurately mapping the sun’s position and path as it moves across the skyline at the various specific time during the day throughout the year.
 
By using engineering simulation and glare analysis to model and analyze the impact of the sun’s path, it gives building design consultants and green engineering designer to fully leverage on the sun’s heat resource to optimize passive solar design building features (such as Passive heating & cooling, Natural daylighting illumination), enhance building energy efficiency, optimize Thermal comfort analysis and optimize the building’s long-term economic and financial value.
 
The impact of the sun’s path can involve the influencing of the Building daylight access, Building site location, the building spatial arrangement and relative orientation, office window placement in relation to the sun’s path direction, and various other architectural design features
 

Assessing a Building Site for Sun Path Analysis

When conducting an assessment of the sun for a building site, it involves the consideration of the following factors such as:

Overview