Trane TRG-TRC007-EN Air Conditioner User Manual


 
TRG-TRC007-EN 65
period five
Review
notes
Period Three walked through the steps of an acoustical analysis, including
setting the design target for the indoor or outdoor environment, and
performing a source–path–receiver analysis. This method of analysis traces
sound from the source to the location where we want to predict the sound
(the receiver). How the sound travels between the source and the receiver,
and everything it encounters as it travels along the way, constitutes the path.
Remember:
n One piece of equipment may contain several sound sources.
n Sound may travel from a single source to the receiver along multiple paths.
n The total sound heard by the receiver is the sum of all the sounds from
various sources that travel along several paths.
Computer software analysis tools are available to aid in performing this type of
calculation-intensive analysis.
Review—Period Three
wall transmission
wall transmission
return
return
airborne
airborne
supply
supply
airborne
airborne
supply
supply
breakout
breakout
source
source
1
1
2
2
3
3
4
4
Figure 71