What happens to the acoustic energy removed by a sound suppression system?

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3
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I was just watching this video of a launchpad sound suppression system, and realized if it removes acoustic energy from the air, the energy has to go somewhere.



Does the water heat up? Will any of it get hot enough to boil? Maybe evaporate a little?






launchpad acoustic-sound-suppression







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  • 2




    If there is no sound suppression system, acoustic energy will be (partially) transformed to heat. Why should that be different when water is used for sound supression?
    – Uwe
    58 mins ago










  • I guess a lot of the acoustic energy would be absorbed by the water in the deluge system being torn into tiny droplets (by doing work against surface tension)
    – JCRM
    11 mins ago










  • but undoubtedly some of the kinetic energy will be absorbed as heat.
    – JCRM
    6 mins ago














up vote
3
down vote

favorite












I was just watching this video of a launchpad sound suppression system, and realized if it removes acoustic energy from the air, the energy has to go somewhere.



Does the water heat up? Will any of it get hot enough to boil? Maybe evaporate a little?






launchpad acoustic-sound-suppression







share|improve this question

















  • 2




    If there is no sound suppression system, acoustic energy will be (partially) transformed to heat. Why should that be different when water is used for sound supression?
    – Uwe
    58 mins ago










  • I guess a lot of the acoustic energy would be absorbed by the water in the deluge system being torn into tiny droplets (by doing work against surface tension)
    – JCRM
    11 mins ago










  • but undoubtedly some of the kinetic energy will be absorbed as heat.
    – JCRM
    6 mins ago












up vote
3
down vote

favorite









up vote
3
down vote

favorite











I was just watching this video of a launchpad sound suppression system, and realized if it removes acoustic energy from the air, the energy has to go somewhere.



Does the water heat up? Will any of it get hot enough to boil? Maybe evaporate a little?






launchpad acoustic-sound-suppression







share|improve this question













I was just watching this video of a launchpad sound suppression system, and realized if it removes acoustic energy from the air, the energy has to go somewhere.



Does the water heat up? Will any of it get hot enough to boil? Maybe evaporate a little?






launchpad acoustic-sound-suppression




launchpad acoustic-sound-suppression






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 1 hour ago









Nick S

33918




33918







  • 2




    If there is no sound suppression system, acoustic energy will be (partially) transformed to heat. Why should that be different when water is used for sound supression?
    – Uwe
    58 mins ago










  • I guess a lot of the acoustic energy would be absorbed by the water in the deluge system being torn into tiny droplets (by doing work against surface tension)
    – JCRM
    11 mins ago










  • but undoubtedly some of the kinetic energy will be absorbed as heat.
    – JCRM
    6 mins ago












  • 2




    If there is no sound suppression system, acoustic energy will be (partially) transformed to heat. Why should that be different when water is used for sound supression?
    – Uwe
    58 mins ago










  • I guess a lot of the acoustic energy would be absorbed by the water in the deluge system being torn into tiny droplets (by doing work against surface tension)
    – JCRM
    11 mins ago










  • but undoubtedly some of the kinetic energy will be absorbed as heat.
    – JCRM
    6 mins ago







2




2




If there is no sound suppression system, acoustic energy will be (partially) transformed to heat. Why should that be different when water is used for sound supression?
– Uwe
58 mins ago




If there is no sound suppression system, acoustic energy will be (partially) transformed to heat. Why should that be different when water is used for sound supression?
– Uwe
58 mins ago












I guess a lot of the acoustic energy would be absorbed by the water in the deluge system being torn into tiny droplets (by doing work against surface tension)
– JCRM
11 mins ago




I guess a lot of the acoustic energy would be absorbed by the water in the deluge system being torn into tiny droplets (by doing work against surface tension)
– JCRM
11 mins ago












but undoubtedly some of the kinetic energy will be absorbed as heat.
– JCRM
6 mins ago




but undoubtedly some of the kinetic energy will be absorbed as heat.
– JCRM
6 mins ago










1 Answer
1






active

oldest

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up vote
2
down vote













Yes, the water heats up. Lots of it evaporates. There is a system to catch and filter the remainder, which is polluted with combustion products of the SRBs.



Shuttle launch



Those massive clouds in the foreground are water vapor mixed with combustion products of the SRBs.



For the Shuttle, this report states that 166 tonnes of water is evaporated, out of 1135 tonnes supplied by the suppression system.






share|improve this answer




















  • Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
    – JCRM
    42 mins ago











  • Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
    – JCRM
    25 mins ago










  • Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
    – JCRM
    8 mins ago










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
2
down vote













Yes, the water heats up. Lots of it evaporates. There is a system to catch and filter the remainder, which is polluted with combustion products of the SRBs.



Shuttle launch



Those massive clouds in the foreground are water vapor mixed with combustion products of the SRBs.



For the Shuttle, this report states that 166 tonnes of water is evaporated, out of 1135 tonnes supplied by the suppression system.






share|improve this answer




















  • Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
    – JCRM
    42 mins ago











  • Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
    – JCRM
    25 mins ago










  • Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
    – JCRM
    8 mins ago














up vote
2
down vote













Yes, the water heats up. Lots of it evaporates. There is a system to catch and filter the remainder, which is polluted with combustion products of the SRBs.



Shuttle launch



Those massive clouds in the foreground are water vapor mixed with combustion products of the SRBs.



For the Shuttle, this report states that 166 tonnes of water is evaporated, out of 1135 tonnes supplied by the suppression system.






share|improve this answer




















  • Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
    – JCRM
    42 mins ago











  • Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
    – JCRM
    25 mins ago










  • Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
    – JCRM
    8 mins ago












up vote
2
down vote










up vote
2
down vote









Yes, the water heats up. Lots of it evaporates. There is a system to catch and filter the remainder, which is polluted with combustion products of the SRBs.



Shuttle launch



Those massive clouds in the foreground are water vapor mixed with combustion products of the SRBs.



For the Shuttle, this report states that 166 tonnes of water is evaporated, out of 1135 tonnes supplied by the suppression system.






share|improve this answer












Yes, the water heats up. Lots of it evaporates. There is a system to catch and filter the remainder, which is polluted with combustion products of the SRBs.



Shuttle launch



Those massive clouds in the foreground are water vapor mixed with combustion products of the SRBs.



For the Shuttle, this report states that 166 tonnes of water is evaporated, out of 1135 tonnes supplied by the suppression system.







share|improve this answer












share|improve this answer



share|improve this answer










answered 1 hour ago









Hobbes

78.8k2215356




78.8k2215356











  • Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
    – JCRM
    42 mins ago











  • Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
    – JCRM
    25 mins ago










  • Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
    – JCRM
    8 mins ago
















  • Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
    – JCRM
    42 mins ago











  • Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
    – JCRM
    25 mins ago










  • Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
    – JCRM
    8 mins ago















Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
– JCRM
42 mins ago





Are the clouds (condensed) water vapour, or are they "atomised" water droplets?
– JCRM
42 mins ago













Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
– JCRM
25 mins ago




Page 66 of the report states the 166 tonnes of water is vaporised due to the exhaust heat. Page 65 states "For this application the kinetic energy should not be included" - so, while extremely useful and interesting, it doesn't answer the question.
– JCRM
25 mins ago












Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
– JCRM
8 mins ago




Page 66 also includes "The cloud must also contain a considerable quantity of liquid water atomized from the excess deluge water " and page 96 goes on to state "Since a substantial fraction of each deposition drop comes from the deluge water without an intervening phase transition"
– JCRM
8 mins ago

















 

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