3 ms·
Another solution I have thought about is simple increasing the amount of fresh air brought into an indoor space. Laboratories, wood-working shops and other spac
by saeranv 6y ago
Another solution I have thought about is simple increasing the amount of fresh air brought into an indoor space. Laboratories, wood-working shops and other spaces that can produce unhealthy air have extremely high Air Change per Hour (ACH)[1] requirements. It's wasteful[2] since you also have to condition that air, but it seems like a simple solution to ensuring we dilute air swarming with potential virus.
[1] https://www.engineeringtoolbox.com/air-change-rate-room-d_867.html https://www.engineeringtoolbox.com/air-change-rate-room-d_86...
[2] You can limit it a little bit with demand control ventilation, which monitors C02 exhaled by occupants and tunes ventilation accordingly.
- dehrmann 6y ago> It's wasteful since you also have to condition Heat exchangers can help, but it's still obviously less efficient.
- saeranv 6y agoYes, and another big saver would be certain types of heat recovery system[1] that will allow you to recover the heat added to the supply air from the exhaust air without mixing (and thereby polluting) the air streams. [1] https://en.wikipedia.org/wiki/Heat_recovery_ventilation#:~:text=Heat%20recovery%20is%20a%20method,thus%20energy%20costs%20)%20of%20buildings.&text=Heat%20recovery%20systems%20typically%20recover,the%20energy%20efficiency%20of%20buildings%20 https://en.wikipedia.org/wiki/Heat_recovery_ventilation#:~:t....