Time to warm a volume of air to room temperature in a container

In summary, the conversation discusses the possibility of using buried air tubes to collect Earth's mean temperature for a project. The speaker wonders how long it would take for 30F air to warm up to 50F in an empty container with a static temperature of 50F. They also suggest asking for advice on the green building forum, where there is a lot of information and experience with using air tubes for preheating ventilation air.
  • #1
RecoveringMoron
1
0
Positing an empty container, underground, with a static temperature of 50F (both container, earth, and air temperature) and a volume of X...

and introducing (and displacing) into this container a parcel of 30F air of volume Y (which is less than the volume of X)...

Is there any way to determine how much time it would take the 30F degree air Y to warm to 50F?

Thanks much. Just trying to think about if buried air tubes to collect mean Earth temperature might be useful for a project. Thanks much for any help.
 
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  • #2
You need to know the thermal properties of the container walls. Pretty sure buried air tubes have been used before to preheat ventilation air. Try asking on the green building forum...

http://www.greenbuildingforum.co.uk/newforum/
 
  • #3
Google earth tubes for much good information. There is a lot of experience out there with them.
 

FAQ: Time to warm a volume of air to room temperature in a container

1. How long does it take for air to warm up in a container to room temperature?

The time it takes for air to warm up in a container to room temperature can vary depending on factors such as the size of the container, the initial temperature of the air, and the heating source. Generally, it can take anywhere from a few minutes to an hour for air to reach room temperature in a container.

2. What is the ideal temperature for a room?

The ideal temperature for a room is generally considered to be between 68-72 degrees Fahrenheit (20-22 degrees Celsius). This is a comfortable temperature for most people and is also recommended for energy efficiency.

3. How does the volume of air affect the time it takes to warm up to room temperature?

The volume of air in a container can greatly affect the time it takes to warm up to room temperature. The larger the volume of air, the longer it will take to warm up. This is because there is more air that needs to be heated and it takes longer for the heat to distribute evenly throughout the container.

4. Does the material of the container affect the warming time?

Yes, the material of the container can affect the warming time. Materials with higher thermal conductivity, such as metal, will heat up faster compared to materials with lower thermal conductivity, such as plastic. This is because the heat is able to transfer more easily through materials with higher thermal conductivity.

5. Can air be warmed up faster by increasing the heating source?

Increasing the heating source can help to warm up air faster, but only to a certain extent. If the heating source is too high, it can actually cause the air to heat up unevenly and potentially damage the container. It is important to use a moderate heating source and allow enough time for the air to warm up gradually to room temperature.

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