Skip to main content
European Commission logo print header
Zawartość zarchiwizowana w dniu 2022-12-27

LOW HEAD LOW COST HIGH SPEED WATER TURBINES WHICH USE PLASTICS AND NEW MANUFACTURING AND INSTALLING METHODS

Cel

To demonstrate a turbine waterway design at two separate sites operating efficiently at heads of (a) 1m (Kilkenny Site), (b) 3.2m (Ballinrobe Site). Both installations will have a runner diameter of 700mm and operate at a rotational speed of 500 RPM and a flow of 2.6 m3/s. The installations will use a re-usable collapsible mould to form the waterway on both sites. Plastic runner blades having localised adjustment along with an all plastic guide vane assembly will also be demonstrated.
The expected energy saving of the Kilkenny plant is IR 12,500 with a payback period of 4,9 years.
With the Ballinrobe site an expected energy saving of IR 15,960 is projected with a payback period of 4.9 years.
Ballinrobe :
The following is a summary of the results obtained to date at Ballinrobe : By setting the propeller blade pitch to allow a flow of 1.6 m³/sec the following results were recorded.

Head race level (m) Power output kW
2.2 17.8
2.4 20.2
2.6 27.1
2.8 33.5
2.9 34.4

We are planning to vary the propeller pitch to allow a number of different flow regimes through the turbine. These tests will be ongoing starting in mid January. The propeller is now set at its design flow of 2.6 m³/sec and is giving a power output of 58.0 kW at a net head of 2.9 m
Two turbine installations will be made one a 21 kW unit will be installed at Kilkenny on an old disused Mill on the River Nore, the second; a 69 kW turbine will be located on a new site at Ballinrobe Co. Mayo.
The innovative features include
i the use of a re-usable collapsible mould to form the turbine waterway
ii the extensive use of plastics to form the waterway housing guide vane assembly and runner blades
iii a low diameter (700mm) high speed propeller turbine which uses an asynchronous motor as generator thus eliminating the need for a gear box.
iv a fixed guide vane assembly and a manually adjustable runner with the adjustable runner allowing for load variations
v overall design which simplifies installation, reduces site labour and the possibility of faulty assembly.
The electricity produced at Kilkenny, 186,285 kWh/year will be used for lighting and general services at Kilkenny Mediaeval Park Ltd. This will have a value to Kilkenny of IR 12,555. Provision has been made to export any surplus into the grid.
Electricity produced at Ballinrobe, 531,799 kWh will be sold directly into the grid and has an expected value of IR 15,960.
Investment costs at Kilkenny amount to IR 61,350 with Ballinrobe amouting to IR 78,230. The overall project is IR 380,000.
A conventional turbine installation would cost in the region of IR 65,000. At replication Polyturbine costs are expected to be IR 25,000 in the head range of 1 to 5 m with civil work costs at IR 20,000.

Temat(-y)

Data not available

Zaproszenie do składania wniosków

Data not available

Koordynator

POLYTURBINE DESIGN LTD
Wkład UE
Brak danych
Adres
PEARSE STREET 111 IDA UNIT 16 CENTRE
2 Dublin
Irlandia

Zobacz na mapie

Koszt całkowity
Brak danych