In early 2003, I remember hearing a radio news report that a photovoltic cell had been developed, which was made mainly of a plastic. It was suppost to be 20 times more efficient than the best silicone. It was suppost to be cheap to make too. I haven't heard anything about it since. I suppose...
I have been out of the a/c and refrigeration loop for several years, but I have found myself back. I had been an electrical inspector and focusing on that. I have heard about 134a of course, but I know there several new ones out there. Then there are the polyester oils? I will be happy with...
I have been out of the a/c and refrigeration loop for several years, but I have found myself back in it. I had been an electrical inspector for a number of years and focusing on that. I would be happy with generalities, but specifics are nice. If anyone knows of good books or mags on the...
I have recently gotten into boilers. I am a trainee. I help maintain two boilers that are used for heating several academic and dorm buildings at a university. The smaller of the two puts out up to 40 tons of steam per hour. During colder periods we start up the larger boiler, which can put out...