has updated it's forum.  To post a question please visit the new Ask@ Forum.   

With a database of over 10000 questions the library will remain available for an extended period.


How hot does the stream of air have to be in order heat up the water to 37 degrees celcius? View All
Air is being pumped into five liters of water, contained in standard
5-liter pop bottle, through a sparger that forms small bubbles. The air
flow is about 10 liters per minute. The room temperature is 15 degrees
Celsius. How hot does the stream of air have to be in order heat up
the water to maintain 37 degrees Celsius.

7 years ago - 8 months left to answer. - 1 response - Report Abuse
Respond to question
    0      [lnkReport]        0       0       
Share |

To determine this you need to know the total heat lost to the outside environment. This will depend on the total exposed surface area of the bottle and the total thermal resistance between the liquid and the air, and the condition of the air some of the heat will be lost due to evaporation.

We do know it will be some temperature above 37C, but without that information it can only be determined experimentally.

Niel Leon

7 years ago


  0     0  does not provide engineering advice. The Ask@ service is a forum for members to exchange ideas relating to the world of engineering. We caution users not to accept any responses that they receive without further validation, and not to rely on any engineering advice that they may get from other members of the Ask@ forum. specifically disclaims any obligation to validate or verify any information posted within the Ask@ service. encourages users to seek the services of a professional engineer for any engineering advice they may require.