You have to make everything political, don't you? BTW, Al Gore doesn't even know you exist and couldn't care less if he knew how much you despise him.
On Thu, Mar 15, 2018 at 9:58 AM, Curley McLain via Mercedes < mercedes@okiebenz.com> wrote: > Awww, Come one! you are raining on the albore/greeniweenie parade! > Albore needs more of your money and mine! > > Jim Cathey <mailto:jim.cathey...@gmail.com> >> March 15, 2018 at 8:55 AM >> >> Basic physics will sit off to the side and laugh at your antics. Basic >> physics cares not. >> >> -- Jim >> >> Curley McLain <mailto:126die...@gmail.com> >> March 14, 2018 at 10:44 PM >> Ah Grasshopper! Basic physics and real science can be denied if there >> are big bux to be made! And it helps if you usta be high placed in the >> goobermnt. (Albore) >> >> All ya have ta do is claim 97% of scientists agree, and bully (and cut >> off goobermnt funds to) anyone who disagrees! (Albore) >> >> If we wanna have downspout turbines, all we have to do is start a >> goobermnt program and fund it. Majikally, the "science" will appear! >> >> Jim Cathey via Mercedes <mailto:mercedes@okiebenz.com> >> March 14, 2018 at 10:19 PM >> >> >> My only point was that drip hydro can't even generate that much power! >> So unless these static films cost at most pennies, _and_ didn't cut down >> _any_ >> on the solar flux, they're utterly pointless. >> >> Basic physics will not be denied. >> >> -- Jim >> _______________________________________ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> Max Dillon via Mercedes <mailto:mercedes@okiebenz.com> >> March 14, 2018 at 7:28 PM >> Science! >> OK Don via Mercedes <mailto:mercedes@okiebenz.com> >> March 14, 2018 at 6:50 PM >> >> I hate to "rain on your parade", but if it sounds too good to be true: >> >> Myth 2: Rooftop / Downspout Hydro >> >> A second common microhydro-electric scheme that we are often asked about >> is >> the viability of putting turbines on a home’s gutter downspouts to >> generate >> electricity from the rain. Some imaginative folks know enough about hydro >> to understand that the energy has to come from somewhere (in this case, >> from the forces of nature), and that the height of the roof can contribute >> head (pressure) to spin that turbine. >> >> The mistake in this scenario is a simple and honest one of scale. While >> some hydro units have been designed that can function on low head, such as >> from the roofline of typical homes (and even lower), a hydro turbine’s >> power output is a product of head *times* flow. And it is a lack of >> significant flow that is the defeating factor in the power equation when >> relying on rooftop rainwater collection. The watershed drainages for even >> small streams are usually measured in thousands of acres or square miles. >> Home roofs, even big ones, are measured in mere thousands of square feet. >> >> Let’s look at example calculations for a large house in a very rainy >> place—Seattle, Washington, gets about 40 inches of rain per year, with >> November being the rainiest month at an average of about 6 inches. >> >> Let’s assume that a tall two-story house would give us a 25-foot-high >> roof, >> and thus 25 feet of head. This 6,000-square-foot home has about 3,000 >> square feet of rainwater collection area (remember, it’s two stories). >> That >> means that in November, this house would receive about 1,500 cubic feet of >> rain, or 11,220 gallons. >> >> If that rainfall came as a constant drizzle all month long, flow from the >> roof would be only about 1/4 gallon per minute. Currently there is no >> turbine on the market to work with that flows that low, but using our >> microhydro power formula (see sidebar), we could theoretically get 468 >> watt-hours that month. >> >> >> *0.26 gpm × 25 feet ÷ 10 derate = 0.65 watts × 720 hrs./mo. = 468 Wh* >> >> So even if there was a nanohydro plant that could harvest that small flow, >> it would result in less than 1/2 kWh of electricity—per month!—and only 3 >> cents worth of electricity in Seattle. It’s a tiny fraction of what even >> an >> energy-efficient, 6,000-square-foot home would use in a day, not to >> mention >> a whole month. >> >> Would the available energy increase if we weren’t dealing with a constant >> drizzle? What if, to increase flows to a usable rate, and hopefully >> increase viable energy production, we could hope that all that rain came >> in >> a great deluge of 1 inch per hour (a 100-year storm, in Seattle) over six >> hours! At that unlikely amount of rain—practically all at once—flow from >> our example roof would be about 31 gpm. That is a more viable flow rate >> for >> hydro turbines on the market and gives us a projected power production of >> 77.5 watts, but only for those six hours. The total of 465 Wh per month is >> about the same energy as the drizzly example above (the minor difference >> is >> from rounding significant digits). >> >> This is when inventive thinkers will begin planning for taller homes, or >> additional rain-collecting roof areas, and tanks to hold the water for >> release all at once to increase flow. But even that 11,220 gallons of >> water >> that falls on our 3,000-square-foot roof that month would weigh almost 47 >> tons if stored. Imagine a structure at roof level capable of supporting >> that kind of load just to generate a minuscule amount of energy. And >> remember, these discouraging energy production numbers are for the >> rainiest >> month, in one of America’s rainiest cities. Other months, other places, >> and >> smaller houses can only deliver worse performance. >> >> In this case, it would be better to just spend the money on a PV system. >> To >> put things into perspective, even in Seattle, which gets only an average >> of >> 1.7 peak sun-hours per day in November, an inexpensive (less than $100) >> 15-watt PV module would make close to the same amount of energy as the >> proposed rooftop hydro system. >> >> https://www.homepower.com/articles/microhydro-power/design- >> installation/microhydro-myths-misconceptions >> >> On Wed, Mar 14, 2018 at 6:17 PM, Andrew Strasfogel via Mercedes < >> mercedes@okiebenz.com> wrote: >> >> >> >> > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
