[Biofuel] Ethanol from cabbage

2005-10-20 Thread John Hall
I have been trying to find out what is best used for fermenting cabbage for ethanol production. Not much out there on the web. Anyone have a suggestion? The only thing I've found so far is for producing sauerkraut and ethanol production is minimal using those enzymes. Why cabbage? Because ther

Re: [Biofuel] Grey water heat recovery and low techSolar collectors????

2005-10-14 Thread John Hall
If the heat spiral heat exchanger is set up properly at the base of the sewer stack, the top portion of the exchanger will be hotter then the bottom. You should see a 15 to 25 deg drop in the temp from top to bottom depending on the temperature differential. In our case the heat exchanger preheat

Re: [Biofuel] Grey water heat recovery and low tech Solar collectors????

2005-10-12 Thread John Hall
Jim, There are commercial grey water heat recovery systems out there. They recover 50% to 75% of the heat going down your drain, largely while taking showers. According to the DOE studies conducted. Check http://www.gfxtechnology.com/ There is one other company that makes a similar product for a