Asian Phoenix Resources MHG-T16 Use And Care Instructions Manual - Page 5
Browse online or download pdf Use And Care Instructions Manual for Inverter Asian Phoenix Resources MHG-T16. Asian Phoenix Resources MHG-T16 17 pages. Micro-hydroelectric generator
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SELECTING A SITE
PowerPal is designed for use in a wide range of locations. There are two critical
factors that influence power output – head and flow. Head is the vertical distance
between the turbine and the water source (forebay), measured in meters. Flow is the
amount of water that passes through the turbine at any instant, measured in litres per
second (l/sec). The following table shows the various combinations of head and flow
to achieve certain maximum power outputs for each model:
Water head H (m)
Water flow Q (l/sec.)
Turbine output (kW)
Gen. output (kW)
For example, if your site has available 24 meters of head and a water flow of 33.3
litres per second then a PowerPal MHG-T8 will produce up to 4.7kW of electricity.
Measuring Head
The net head is the vertical height from where the water flow enters the penstock
down to the level of the turbine. It is shown in the System Diagram. To measure this,
use a tape measure and a clinometer or spirit level etc. A less accurate but useful
alternative is to make your own level from a transparent tube half-filled with water.
Attach this to the top of a 1m long stick and then point this horizontally at a point
further up the slope as though it were a spirit level. By going to that point and
repeating the process the total head can be measured – see the drawing below.
10m
9
8
7
6
5
4
3
2
1
0m
Another method is to use an accurate pressure gauge and a length of hose. Run a
water-filled hose from the forebay to the turbine site and attach the pressure gauge to
the bottom end. The pressure gauge shows 1.422 psi / meter of head e.g. 34 psi for a
head of 24m to 48 psi for a head of 34m.
This head should be between 24 and 34 meters for both the MHG-T8 model and the
MHG-T16 model. If it is smaller then the power output will be reduced. If it is larger
then your power output will be increased. While increased power output appears
MHG-T8
24m 26m 28m 30m 32m
33.3 34.6 36.0 37.2 38.4
5.9
6.6
7.4
8.2
9.0
4.7
5.3
5.9
6.6
7.2
MHG-T16
34m 24m 26m 28m 30m
39.6 66.6 69.2 72.0 74.4
10.0 11.8 13.2 14.8 16.4
8.0
9.4 10.6 11.8 13.1
Measuring Head:
Walk up the slope from where you wish to place
the turbine to where the water source is. Or, do
the reverse: walk down the slope from the water
source to locate the best site for the turbine.
32m
34m
76.8
79.2
18.0
20.0
14.4
16.0
PowerPal™ T8 & T16 Turgo 5