Timeline for Duct static pressure vs ambient air pressure
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 25, 2015 at 20:03 | comment | added | Joel Keene | Air always flows from a region of higher static pressure to a region of lower static pressure. "Velocity pressure" is just a creative way of accounting for the kinetic energy of the gas when doing an energy balance (aka Bernoulli's equation). Therefore, the static pressure in the duct must be higher than the static pressure outside, or the air wouldn't flow. | |
| May 25, 2015 at 3:51 | vote | accept | rith87 | ||
| May 23, 2015 at 15:26 | comment | added | rith87 | Right, that makes sense. So, the static pressure when the system is on will be >0 iwc; what about when the system is off? 0 iwc? My first impression was that this difference in pressure was velocity pressure instead. Although I could definitely be mistaken. | |
| May 23, 2015 at 13:51 | answer | added | Ryan Smith | timeline score: 1 | |
| May 23, 2015 at 12:35 | comment | added | Tester101 | When the system is on, you feel air coming out of the register, right? That's the air rushing from inside the duct, in an attempt to balance the pressure. | |
| May 23, 2015 at 8:40 | review | First posts | |||
| Jun 3, 2015 at 3:42 | |||||
| May 23, 2015 at 8:36 | history | asked | rith87 | CC BY-SA 3.0 |