As the summer heats up an air conditioning system is a necessity in many climates. [Grayson's] system suffered some damage over the winter that caused it to vent its refrigerant, avoiding an explosive situation. Before he can chill out inside he'll need to recharge it and he's chosen to use propane in his cooling system. According to our friend Google this is not his original idea, but has been … [Read more...]
Solar powered ice maker
August 29, 2008 By 41 Comments
Producing ice without electricity just got a lot easier thanks to these engineering students from San Jose State University. Their system uses solar heat to facilitate evaporation of a coolant. When the sun goes down and the coolant turns back to liquid, its temperature drops drastically due to extreme pressure differences. The unit can produce 14 pounds of ice per day with zero carbon footprint. … [Read more...]
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