Passive Solar HouseCreationAaron Bernhard, Braydon Hall, Izzi Durham and Vibhu Iyer
HMW Questions• How might we design a structure that takes in as much energy from the sun as possible?• How might we utilize the building materials in the class to build a powerful solar house?• How might we build our house as time efficient as possible?• How might we maintain the heat throughout the night?• How might we focus the energy of the sun into the house?• How might we absorb as much energy from the sun as possible?• How might we use light?
Brainstorming• For each and every HMW question, my group would sit down for a period of 15 minutes and draw any idea that came to mind.
How might we use light?• Mirrors• Windows• CDsWe held up CDs so they reflected light onto a thermometer orour hands – the increase in temperature was quite significantand noticeable.
How might we maintain the heat?• Water• Insulation• Double paned/two wallsTo test various methods of insulation, we put two identical cupsof hot water underneath plastic and cardboard boxes. The cup inthe plastic box stayed slightly warmer, though it wassmaller, which may have skewed our results. But when we hadtwo layers on one of the boxes, it kept its heat far better thanthe single box.
HMW absorb as much energy from the sun as possible?We tested a clear water bottle and a black water bottle under alamp. The black water bottle was slightly warmer at the end.
The Plans• After much consideration we cut down the ideas to its most rudimentary form.
The BreakdownWhat we had learned in ourexperimentation was that wecould focus the heat through asingle hole. Then we couldabsorb it through somethingwith a high heat capacity thatwas relatively dark. Finally welearned that in order to besuccessful we neededsomething that was both airtight and had a lot of insulation.All of these became key in ourfinal design.