A virtual supply airflow rate meter for rooftop air-conditioning units

A Virtual Supply Airflow Rate Meter in Rooftop Air Conditioning Units

Calculation of airborne cleanliness and air supply rate for non-unidirectional airflow cleanrooms

When designing a cleanroom to achieve a required airborne cleanliness standard or grade, such as specified in ISO 1464411 or the European Union Guidelines to Good Manufacturing Practice (EU GGMP)2, designers have difficulties deciding how much filtered air should be supplied to the cleanroom to achieve the correct airborne cleanliness requirement. Currently, this decision is based on experience...

Virtual Power Consumption and Cooling Capacity Virtual Sensors for Rooftop Units

Implementation of advanced controls and diagnostic features in small commercial buildings typically requires realtime monitoring of the energy flows, such as the power consumption and cooling capacity of rooftop units. However, these measurements are expensive and therefore limit the application of these advanced features. In order to lower the measurement cost, virtual sensing technology for r...

Air Conditioning Energy Saving by Rooftop Greenery System in Subtropical Climate in Australia

The benefits of rooftop greenery systems (such as energy savings, reduction of greenhouse gas emission for mitigating climate change and maintaining sustainable development, indoor temperature control etc.) in buildings are well recognized, however there remains very little research conducted for quantifying the benefits in subtropical climates such as in Australia. This study mainly focuses on...

Air Conditioning Check and Air Conditioning Service