Team:Valencia/RH

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Red-House

Defining the Red House

The device that we call Red House is a planetary incubator chamber that insulates our cultures and allows them to grow up in an extreme environment like Mars. It is pretty much like an improved greenhouse on Mars. Furthermore, it can supply itself with energy coming from a windmill which produces energy from the strong martian wind. This renewable source of energy is absolutely essential for the working of the Red House.

The main objective of this system is to verify the capability of protecting the cultures located inside the Red House device. This protection against the harsh environmental conditions on Mars is only the first step because after that we aim to set a dynamic system inside the Red House in order to maintain the best growing conditions inside of it.

[Image:Valencia_rh_stand.jpg|thumb|center|300px|Setting of the Red-House in the bench.]]

[Image:Valencia_rh_stand1.jpg|thumb|center|400px|Setting of the Red-House in the bench.]]

[Image:Valencia_rh_windmill.jpg|thumb|center|400px|Windmill.]]

The primary objetive of protecting cultures against extreme temperatures is achieved by the thermal isolation the Red House provides. The Red House is able to maintain a closed atmosphere from the exterior. Besides temperature, the Red House protects as well against UV radiation, especially the range between 200 and 320 nm, which is very harmful for organisms.

In order to maintain a constant and renewable supply of electric power for the Red House, two different alternatives were studied:

Windmill, which uses a eolic energy
Peltiers cells that produce power using solar energy

Measuring the Red House

The electric power produced this way is distributed into the thermal insulation device, where it feeds a electric resistance. Due to the Joule effect this resistance transform the incoming electric energy into thermal energy and warms up the interior of the Red House. In the next graph it is shown the difference between the internal and the external temperature. As you can see the insulation achieved is quite good. The Red House is able to maintain a 60ºC difference between outside and inside. The -80ºC conditions were achieved using frozen carbon dioxide.

Insulator assay down to 0ºC.

Insulator assay down to -80ºC

Once the test were conducted, it was clear that due to the space, time and budget limitations the best option was the wind turbine. At the same time, we carried out a series of tests that allow us to determine the exact amount of electric power needed for ensure an optimal growing environment for the cultures inside the Red House. Test with the wind turbine where conducted in order to make the necessary design changes to reach the optimal energy production.

Maximun power output of the Windmill and temperature inside the Red-House.

As you can see in the graphics above it is possible that sometimes the power production exceeds the temperature necessity of the cultures. In this situations the temperature would increase becoming harmful for the cultures. In order to avoid this situation, it was decided that it was mandatory to have the possibility of regulating the electric power coming into the system. Therefore we can control the temperature inside the Red House according to the external conditions and our necessities.

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-== Introduction ==
+== Defining the Red House ==
-In the other hand, in the beginnings our microorganisms are going to need an appropriate environment to grow. Regarding this, we have designed and built a Red-House (an analogy with a greenhouse but in the red planet) in order to preserve the growing cultures until the atmospheric conditions reach the proper values to the microbial growth. The Red-House is a device designed to protect the microorganisms from the harsh conditions of temperature, pressure and radiation. The device is thermally isolated from the exterior media so we can warm its interior with electricity generated using wind turbines.
+The device that we call Red House is a planetary incubator chamber that insulates our cultures and allows them to grow up in an extreme environment like Mars. It is pretty much like an improved greenhouse on Mars. Furthermore, it can supply itself with energy coming from a windmill which produces energy from the strong martian wind. This renewable source of energy is absolutely essential for the working of the Red House.
+The main objective of this system is to verify the capability of protecting the cultures located inside the Red House device. This protection against the harsh environmental conditions on Mars is only the first step because after that we aim to set a dynamic system inside the Red House in order to maintain the best growing conditions inside of it.
+[Image:Valencia_rh_stand.jpg|thumb|center|300px|Setting of the Red-House in the bench.]]
+[Image:Valencia_rh_stand1.jpg|thumb|center|400px|Setting of the Red-House in the bench.]]
+[Image:Valencia_rh_windmill.jpg|thumb|center|400px|Windmill.]]
+The primary objetive of protecting cultures against extreme temperatures is achieved by the thermal isolation the Red House provides. The Red House is able to maintain a closed atmosphere from the exterior. Besides temperature, the Red House protects as well against UV radiation, especially the range between 200 and 320 nm, which is very harmful for organisms.
+In order to maintain a constant and renewable supply of electric power for the Red House, two different alternatives were studied:
+#Windmill, which uses a eolic energy
+#Peltiers cells that produce power using solar energy
+Measuring the Red House
+The electric power produced this way is distributed into the thermal insulation device, where it feeds a electric resistance. Due to the Joule effect this resistance transform the incoming electric energy into thermal energy and warms up the interior of the Red House. In the next graph it is shown the difference between the internal and the external temperature. As you can see the insulation achieved is quite good. The Red House is able to maintain a 60ºC difference between outside and inside. The -80ºC conditions were achieved using frozen carbon dioxide.
+[[Image:Valencia_rh_graphic1.jpg|thumb|center|400px|Insulator assay down to 0ºC.]]
+[[Image:Valencia_rh_graphic2.jpg|thumb|center|400px|Insulator assay down to -80ºC]]
+Once the test were conducted, it was clear that due to the space, time and budget limitations the best option was the wind turbine. At the same time, we carried out a series of tests that allow us to determine the exact amount of electric power needed for ensure an optimal growing environment for the cultures inside the Red House. Test with the wind turbine where conducted in order to make the necessary design changes to reach the optimal energy production.
+[[Image:Valencia_rh_graphic3.jpg|thumb|center|400px|Maximun power output of the Windmill and temperature inside the Red-House.]]
+As you can see in the graphics above it is possible that sometimes the power production exceeds the temperature necessity of the cultures. In this situations the temperature would increase becoming harmful for the cultures. In order to avoid this situation, it was decided that it was mandatory to have the possibility of regulating  the electric power coming into the system. Therefore we can control the temperature inside the Red House according to the external conditions and our necessities.
-The idea to make this device was inspired by the reading of Robinson's Red Mars in wich the first martian colonist spread windmills to seed microorganism over the surface of Mars.
-An interesting result of this part of the project is that we could probe the Red-House is capable of protect the cultures inside them, and that the cultures grow significatively more inside than outside the device.
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