Due to the project and semester schedules, we were not able to test the designs until November. The weather during November in Iowa can get pretty chilly, but these are the conditions under which the solar heater would actually be used. This photo shows the conditions of one of our final testing days.
Despite the chilly November weather and cloudy skies the solar heater was able to produce very warm output temperatures. (80.6 degrees Fahrenheit)
And these output temperatures continued to rise throughout testing. (110.0 degrees Fahrenheit)
This graph provides a summary of testing data for three testing sessions. Our team was very happy with these results and the maximum output temperature achieved exceeded everyone's expectations.
Our Design Expo poster summarizes an entire semester's worth of work. It includes customer requirements, specifications and benchmarking metrics, an engineering model, morphological charts for brainstorming, profitability analysis and final design results.
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Solar Heater - Will

Mechanical engineering students at Iowa State participate in a major design class during their sophomore years. The goal of the design projects is to create a sustainable, simple, usable design to improve living conditions for a targeted third-world country. Throughout the fall 2011 semester, our team members began discovering their strengths and passions. We geared our project planning to utilize these developing strengths. We assigned a CAD master, team planner, communications specialist, research lead, and construction lead. Together we developed a clear project goal that was a little different than those typically developed. We decided to focus on poverty in our local region and focused on energy costs in Des Moines, Iowa. Our solar heater was planned and developed throughout the fall 2011 semester and was tested in November and wrapped up in December. The project was deemed a success by our team and even received the second most votes from our sophomore peers for best project.