Air recirculation in ventilation systems is essentially the mixing of a certain amount of exhaust air into the supply air. This process provides a reduction in energy consumption when heating fresh ...

This paper highlights the system requirements and operating conditions of automatic air recirculation valves and reviews compatibility of existing calculator types with these requirements. When ...

We’re now nearing the end of this year which means we’ve spent nearly a year living with a virus outbreak. A lot of habits have had to be inculcated during this time, one of which is about whether or ...