3. Rosso – Smart energy production in Turin

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E2STORMED FINAL MEETING - TURIN, 28 MAY 2015
Prof. Maurizio ROSSO:
Department of Environment, Land and Infrastructure Engineering
STUDIO ROSSO INGEGNERI ASSOCIATI SRL
C.So Principe Oddone 5/a - 10144 - TORINO
PELLERINA CHANNEL HISTORY
-
XIV century: construction of Pellerina channel intake and derivation for hydraulic
purposes for the city of Turin;
1615: First water right for Pellerina Channel;
Water used for mills, industries, sewerage and sanitation system for Turin.
Geom. A. Rabbini
plan: 10/03/1842
River Dora Riparia
Pellerina weir and
channel intake
Pellerina channel
City of Turin
SMART ENERGY PRODUCTION IN TURIN: The Hydroelectric Power Plant in Pellerina City Park
-
1827: Weir construction for stabilization of the intake: L=147 m
Construction of the Pellerina channel intake and of the flushing channel into the Pellerina
city park, regulated by gates.
Pellerina flushing channel to
the river Dora Riparia
Flushing channel intake on the
right side of the weir
River Dora Riparia
Pellerina channel to Turin
Pellerina weir
Weir
Pellerina channel intake
-
Rectification of the river channel by the construction of 3 weirs, that define an
hydraulic head drop of 6 m.
River Dora Riparia after 1935, with channel
rectification and construction of some weirs for bed
stabilization
Pellerina channel
weir
River Dora Riparia, before 1935
Weirs for bed
stabilization
-
2000: disposal of the Pellerina channel and of the flushing channel;
The channel inside the park was abandoned;
The maintenance of the weir was not necessary: high sedimentation in front of
the intake.
Abandoned channel
inside the park
High Sedimentation at the flushing channel
intake, upstream the weir
Flushing channel intake in a
state of abandon with sediment
-
Large urban park in the west part of the city;
It covers approximately 837,000 square meters: the largest park in the city
Hosts the largest dog area in the city and many scattered modern sculptures (land
art);
It is increasingly popular and appreciated by Turin’s citiziens.
-
An hydro power plant perfectly integrated into the landscape of the Pellerina City
Park in the municipality of Turin;
Use of the Pellerina channel existing weir for discharge derivation and energy
production;
Use of the hydraulic head currently dissipated by 3 weirs realized on the Dora river
after 1935, in the Pellerina city park.
Pellerina Park plan, until 2012
Weirs for bed
stabilization
Pellerina channel weir
Flushing channel
-
Use of the old flushing channel intake as intake for the HPP;
HPP Civil buildings realized completely underground not to change the landscape of
the park;
Environmental rehabilitation of the old channel inside the park as natural fish pass;
Canoe pass construction using the natural fish pass to bypass the geodetic head drop
at the weirs
Power house
Outlet channel
Penstock
HPP sand trap
Technical fish pass
HPP intake
Natural fish pass and canoe pass
weir
Technical fish pass
Qmax = 13 m3/s;
Qmean = 4,6 m3/s;
Hgross = 5,71 m;
Pnom = 258 kW;
QDMV = 7 m3/s;
E = 2.900.000 kWh/year
-
Flushing gate on the right side of the weir, close to the HPP intake;
Removable steel grid for floating material;
3 automated gates at the intake for water derivation;
Gravel trap L=24m; w=8,5m with flushing gate;
Sand trap L=20m; w=8,5m with flushing gate
Access to the
Automated trashrack cleaning machine.
machine
trashrack cleaning
Outlet channel of the
flushing gate
Flushing gate
Removable steel grid
3 Gates for water derivation
weir
- Steel penstock;
- L=267 m; φ=2500 mm; th=14 mm;
- Instrument for derived flow measurement;
- By-pass steel penstock for overpressure dissipation;
- L=62 m; φ=1500 mm; th=10 mm;
- Syncronous gate opening.
-
Underground reinforced concrete power house
Watertight building;
Double regulated S-Kaplan turbine;
Qmax = 13 m3/s;
Gross Head = 5,81 m;
Net Head = 5,39 m;
P = 620 kW.
SCADA system for remote supervision and control.
- Minimal environmental impact;
- L=20 m; w=6 m;
- Flow for fish attraction.
High value of DMV flow, greater than that required by legislation
QDMV = 7 m3/s;
- QFISH = 800 l/s;
- QWEIR = 4,7 m3/s
hW = 5 cm;
- Qflushing_gate = 1,5 m3/s.
Flushing gate – Q=1,5 m3/s
Derived flow
Canoe pass
Weir – QWEIR=4,7 m3/s
Fish pass – QFISH=800 l/s
Fish pass
- Two technical passages, upstream and downstream;
- Long natural channel, using the old flushing channel of the Pellerina
Canoe pass
- Access to the intake and to the outlet of the natural channel for fish pass;
- Use the natural channel for fish pass to cross the weirs.
- Green energy production of 2.900.000 kWh/year;
- 1.400 t/y of CO2 emission avoided;
- High value of DMV flow ;
- No noise pollution;
- Dora Riparia fish continuity through a new fish pass;
- New canoe pass;
- Rehabilitation of the old flushing channel with 800 l/s constant flow;
- Minimal impact: every construction is underground;
- Supply and planting of a high number of trees in the Pellerina City Park.
THANK YOU FOR
YOUR ATTENTION
Prof. Maurizio ROSSO
Department of Environment, Land and Infrastructure Engineering
STUDIO ROSSO INGEGNERI ASSOCIATI SRL
C.So Principe Oddone 5/a - 10144 - TORINO

3. Rosso – Smart energy production in Turin

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