Abstract:
In Sri Lanka air circulating fans are extensively used to improve the comfort level in
enclosed spaces. The flow generated by such a fan not only provides the required
circulation and velocity but also maintains steady and uniform temperature conditions
through better mixing. Among these fans, the most extensively used category is the ceiling
fans. There is a wide variety of ceiling fans available locally with different levels of
performance. Due to a lack of criterion to identify the most suitable fans for various
applications, customers have to face unnecessary inconveniences. To address this issue, it
has been proposed to introduce an energy labelling criterion for ceiling fans by Energy
Conservation Fund (ECF) & Sri Lanka Standards Institution (SLSI). Development of such
a criterion needs detailed performance testing of ceiling fans, particularly the flow field
generated.
