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microhydro · micro hydropower

Group Information

  • Members: 2825
  • Category: Energy
  • Founded: Nov 24, 1998
  • Language: English
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Activity within 7 days:

3 New Members - 31 New Messages - New Questions

Description

This discussiongroup focusses on technical and non-technical aspects of run-of-river micro hydropower schemes.
More information at microhydropower.net

Most Recent Messages

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Re: Introduction new member
The basic problem of the Screw turbine its the low RPM and often the need to have multiplying gears to attain the necessary RPM, which can be problematic. The
Posted - Thu Dec 24, 2009 5:27 pm
Nando
nando37@...
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Re: Alternative Power & Machine Hydro Turbine
Adding to Max message: Small hydros, in this case, where the charge controller allows the turbine to operate at its peak ( producing voltage several times
Posted - Thu Dec 24, 2009 5:27 pm
Nando
nando37@...
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Re: Introduction new member
SUSAN: I have several articles that cover SCREW design, construction , use if you are interested. Nando ... From: susankaveny1 To: microhydro@yahoogroups.com
Posted - Thu Dec 24, 2009 5:27 pm
Nando
nando37@...
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Re: Alternative Power & Machine Hydro Turbine
You can avoid a DC to DC step down converter and charge the battery directly form the hydro, however: (a) it will be rather inefficient (b) it will operate
Posted - Wed Dec 23, 2009 11:49 pm
Max Enfield
boutiquepower
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Re: Alternative Power & Machine Hydro Turbine
QUESTION 1: Yes and NOT -- Mostly NOT - For the turbine to operate properly, the load needs to allow the turbine to rotate to its best RPM -- in this cases
Posted - Wed Dec 23, 2009 11:49 pm
Nando
nando37@...
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 100 87 168 106 64 102 61 108 104 118 298 111
2008 227 139 249 131 166 152 106 94 117 122 154 87
2007 130 85 124 91 78 35 108 49 38 64 37 131
2006 93 74 160 83 88 90 98 100 125 102 174 118
2005 133 134 73 68 107 63 85 72 142 176 87 120
2004 42 53 44 22 46 28 41 92 109 56 99 56
2003 69 36 110 76 87 80 46 153 99 94 48 100
2002 24 38 73 71 86 12 40 59 38 80 22 73
2001 98 56 108 81 54 47 57 86 83 44 108 104
2000 138 261 112 61 55 41 233 112 146 80 43 38
1999 75 111 41 31 46 8 79 102 55 90 82 116
1998 2
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