"Zabaleen" is the Arabic term for those visionary and enterprising people whose culture revolves around recycling. The Zabaleen are experts at "transforming one man's garbage into another man's gold" and aspire toward a net zero-waste economy. Applied and supported this could lead to true energy independence, not only by radically reducing our demand for "raw materials" and hard to extract natural resources but by recycling other less obvious phenomena and materials that are now wasted.
Sunday, October 31, 2010
Third trial of Dometic Refrigerator on Biogas
After 6 hours of biogas operation (this time in our apartment at a balmy 18 C ambient temp) we are down to -20 C in the freezer and -1.1 in the main fridge, sipping only 230 or so liters of biogas. This time Ahmed Khalifa and I have put Ahmed's data logger inside so we will publish graphs... soon. We also will explore how quickly the fridge loses heat when the gas is off,with and without extra insulation. The great thing is that we are almost 40 C below ambient, which bodes well for African applications. In the end we got 6 hours and 45 minutes from less than 300 liters. Last time we ran for 7 hours (and got down to -26.2 C in freezer and -4 C in refrigerator).