KNOW-HOW FOR hydro-electric power station
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KNOW – HOW TECHNOLOGY
The Turbine "SETUR" and its practical use

The turbine SETUR is a hydraulic motor, which is able to function with relatively small energy input. It is able to effectively utilize micro energies from water sources that are renewable and convert them into useful work. General characteristics of this equipment are concealed in the fact that this is relatively new type of equipment which is utilizing hydraulic principles not implemented anywhere in the World. This "Rolling Hydraulic Machine" is at the moment the only technical equipment, which can be from the economical, ecological cleanliness, and technical simplicity point of view installed under unstable or borderline energy conditions. It is therefore able to successfully produce mechanical energy with effectiveness of 65 - 75% where other apparatus for technical and economical reasons cannot be installed. In practice, it is about potential energy obtained form very small down grades and minimal water flow quantities. For example effective possibilities to harvest energy present themselves with water level differences of around 0.5 - 1.5 meters or water volumes of 2 - 20 liters/sec passing through the turbine. In practice, these unusually small natural water sources are not being utilized anywhere in the world at this time, even though they represent more then half of the worldwide hydro-energy potential. Turbine SETUR appears to be the possible source of the driving force in the inevitable change of this negative situation towards improvement, because it offers to its users simply, inexpensively, and effectively to explore natural and renewable resources where it was absolutely not possible until now.

World's innovation, new principle of function, and simple industrial utilization of turbine SETUR and for its economical use made it possible to obtain wide ranging coverage of patenting protection. In most of the industrialized countries in the world the Rolling Hydraulic Machine is patented nationally or internationally including improved applications and technical innovations are subject to attached patenting protection. (For example, in the USA it is the United States Patent 6,139,267, in Australia Letters Patent No. 722378, the publication of the Euro-patent is prepared by the European Patent Office, application solutions under the name Hydraulic Motor is registered for international patent protection Registration PCT/CZ99/00012 etc.).

Practical utilization of turbine SETUR for the purposes of energy harvest is prepared in two formats. The first is based on the concept of machine for the production of small (micro) quantities of electrical energy and the second is utilized to power a water pump for local irrigation systems. Both of these concepts are characterized by the fact that they enable the user to utilize minimal, in practice by other equipment unusable, source of potential renewable energy. Past experiences prove that from the economical sense the micro-turbine SETUR is able to pay for itself in just a few years, if it is producing electricity, which is being completely utilized in closed manufacturing production circuit, or in just few months if it is equipped by a water pump and is being used for long term irrigation of farming production. In case of need it is technically possible to equip the turbine SETUR with both functions at the same time, which is to power the generator as well as the water pump. Practical testing has confirmed that micro-quantities of electrical energy, especially in an accumulated form can save the lives or profoundly affect the lives of people who for some reason cannot be without a source of electrical energy and have no other means to generate it. Also the utilization of the turbine SETUR as the source of energy to drive a water pump to irrigate a land can in its own way act as an instrument for the survival of people in the long term or under unexpected array of (negative) conditions.

Electricity generating station "DVE 120"

DVE 120 is an environmental self - contained electricity generating unit powered by PATENTED bladeless rolling turbine. The turbine unit is fixed to concrete block containing inlet piping. Attached generator produces 12 or 24 V eletricity. Generated electricity can be used directly or stored in batteries.

PATENT No. 283553

H - water head Q - flow rate P- output
[m] 3,5 - 20 [l/s] 4 - 20 mechanical electrical
[W] * 75 -2100 [W] ** 35 - 1000
( P mech = 7,5 x Q x H )
*    acquired output depends on hydraulic losses due to water feed pipe Zuführungsleitung entstehen, abhängig.
**   acquired output depends on used generator efficiency
     DVE 120 weith (including concrete base): 60kg

installed GALLERY

Turbine "SETUR" DVE 120 installed in village Svatý Jan pod Skalou

       

Detail of valvular closure of water penstock

designed to produce electrical energy utilizing low water down grades

the installation of Turbine/Generator model DVE 580

Combination of Turbine and Water Pump for Irrigation purposes

Station for water pumping and manufacturing of electrical energy

Example of penstock closure

Will the electrical output of 100 W produced by turbine "SETUR" DVE 120 be sufficient to operate this cabin ?

The Installation of Home Water Powered Electrical Generator DVE
(Practical, Simplified procedure)

Our Goal: Provide a sufficient quantity of electrical power for average operation of "Our" cabin, using a nearby water source.

Before considering the installation of DVE it is necessary to do some calculations on energy balance:
A) Source of Electrical Energy
B) Anticipated usage of Electrical Energy

A) Energy balance for water powered machine, operation of Home Water Powered Electrical Generator:
Before we begin with the installation of the DVE, it will be necessary to research all ownerships of land including local land and water rights, building permits, and other applicable law and legal considerations if those issues have not been worked out.
In the country site where "Our" cabin is built, we will give an approximate estimate of the potential capacity to produce electrical energy from the water which will power the generator DVE. For our calculations we need two measurements:

1. Water down slope: H [m]
We will obtain "H" by simply measuring the differences between: upper water level, (the point where we will install the water intake pipe) and lower water level, (the point or location where the DVE will be installed).

In our example it was measured: H = 5m

2. Water volume: Q [l/s]
"Q" will be established at the location where the DVE will be installed by doing a few repeated measurements. This can be done by filling a larger container (barrel) of a known volume while timing the period needed to fill the container with a stopwatch.

In our example it was measured:
Barrel with a volume of 200 liters; average time to fill it: 25sec.
Water flow: Q=200/25=8 l/s
Q = 8 l/s

3. Calculating the sustained output of the electrical generator
With the assumption that the entire water volume will pass through the turbine and will produce usable energy, we will calculate the expected energy yield on the output contacts of the generator this way:
GIVEN: Mechanical Efficiency of Turbine: hM = 0,7 (70%)
GIVEN: Efficiency of Generator: hG = 0,5 (50%)
GIVEN: Coefficient of Hydraulic Loses in water supply pipes: 0,765
Electrical output PEL:
PEL= g * Q * H * hM * hG * 0,765 =
PEL= 9,81 * 8 * 5 * 0,7 * 0,5 * 0,765 = 105W
PEL= 105 W

In Conclusion:
Our water power source (in the example above) is capable of converting its energy potential to electrical power output of 105 W. The turbine SETUR will be equipped with a 3-phased synchronies generator with parameters as follows:
Output: 120 Watt
Voltage: 3x24 Volt AC (Alternating Current)

B) Energy Balance of electrical energy consumption in "Our" cabin
The basis for this calculation is "Our" useful layout of electrical devices throughout the dwelling and their rated consumption in Watts, as it can be seen on the next cabin floor drawing. At the same time we will establish the expected duration of their daily operation. All findings will be laid out in tables and from there we'll calculate electrical energy consumption.

For your orientation, table of used schematic symbols is provided below.

electrical schema

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Basic Block layout

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Table I. Consumption of Electrical Energy by units

Location of
Consumption Device
Type Power [W] Operation
Duration
[h/day]
Daily
Consumption
[Wh/day]
Basement - Cellar Light bulb 9 * 1 = 9
Light bulb 11 * 2 = 22
Patio Light bulb 9 * 2 = 18
Light bulb 9 * 2 = 18
Living room Light bulb 9 * 1,5 = 13,5
Light bulb 9 * 1,5 = 13,5
Light bulb 20 * 4 = 80
Television 50 * 5 = 250
Radio 15 * 10 = 150
Bedroom Light bulb 13 * 2,5 = 32,5
Light bulb 9 * 2 = 18
Light bulb 9 * 2 = 18
Kitchen Light bulb 11 * 2 = 22
Light bulb 13 * 1,5 = 19,5
Fan 25 * 1,5 = 37,5
Refrigerator (55) * (12) = 660
Toilet Light bulb 11 * 1,5 = 16,5
Fan 25 * 1 = 25
Bathroom Light bulb 11 * 3 = 33
Water Well Water Pump 180 * 1,5 = 270
Total   1726
Losses in Regulation,
Converters and Reserve
10% (Chosen For Example) = 173
Total Expected Daily Consumption Ad= 1899 Wh
After calculating daily consumption (see Table I.) we will select battery voltage (12 V or 24 V DC). With regards to loses in power supply wiring it is better to choose higher voltage: USYST=24 V
- Further we'll calculate basic capacity of Battery CA [Ah]:
CA = Total Expected Daily
Consumption
= Ad = 1899 = 79,125 Ah



System Voltage USYST 24





Battery capacity calculated this way is for uninterrupted working regime of DVE, without regard to its reserve capacity and without consideration to the depth of battery cycling. It is safer to consider daily reduction of operation of DVE max. 0,5 hour.
Coefficient for battery charging is thus:kA= 24 / (24 - 0,5) = 1,021
In order to maximize life expectancy of the batteries, the depth of discharge should not exceed 50% of its capacity.
For those reasons the depth of discharge will be set to:hV = 0,5
- Next we'll calculate the optimum capacity of the batteries for operation of our electrical devices:
C = CA* kA / hV = 79,125 * 1,021 / 0,5 = 161,617 Ah
From available selection of optimal battery capacities we have selected two 12Volt batteries with the rating of 80 Ah. They will be connected in series for a total of 24 Volts:

schema battery

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Total available energy output of the selected batteries equals: C=160 Ahand output Voltage of both batteries connected in series: U = 24 V (this coincides with USYST)
In order to operate the most energy demanding electrical devices simultaneously, it will be important to select appliances with a minimum power consumption designed for 230 V, 50 Hz AC power system in "Our" cabin.
These appliances are selected as an example:
Refrigerator : 55 W
Water Pump : 180 W
Television : 50 W
Light : 13 W
Total : 298 W
From the above example it is self evident that the minimum setting of the DC to AC converter operating at system Voltage of 24 V, has to be:
Pstr. = 300 W
The required current consumption will be partly covered by the batteries and partly by the output of the DVE. The current on the DC side of the DC to AC converter will be:
Istr. = PM / USYST = 300 / 24 = 12,5 A
- Since there is a sizable current required by the DC to AC converter it is of paramount importance to properly dimension the electrical wiring. In our case with consideration to loses of 3% in the connective cabling to both sides (that is the + & - connections) of the DC to AC converter, wiring with a minimum of 6mm2cross sectional dimension and a maximum length of 8m (with wiring from batteries to the DC - AC converter). It is assumed that the current carrying capability is 2,5 A/ mm2.
This concludes the calculations of balance between consumption, suggested battery capacity, and output of DC to AC converter. For additional assurance we will confirm the capabilities of the power source (DVE) on reduced daily output in the time span from 6a.m. to 12p.m. or approximately 18 hours.
Ad = 1899 Wh / day = 24 hours
Adr = 1899 Wh / 18 hours -> will determine the continuous reduced output during the operation "Our" live-in accommodation (cabin):
P18 = Ad / 18 = 1899 / 18 = 105,5 W
Based on our above calculations, DVE is capable of a continuous output of PEL= 105 W

In Conclusion::
Comparing calculations and data from sections "A" and "B" we can conclude that the output of the electrical source is sufficient for our operation. In such case that the calculated data in P18 > PEL (greater then) is more than 5%, it will be necessary to reconsider the operation of "Our" cabin by readjusting consumption requirements in the appropriate table (Table I.) used above.
Should you require additional or more detailed information for the above example and also the possibility of energy power grid setup, we will be glad to supply it.

WATER PUMP FOR HOME USE


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