solar thermal energy plant applied tosolar … · in italy there are no experiences in solar...

SOLAR THERMAL ENERGY PLANT APPLIED TOSOLAR THERMAL ENERGY PLANT APPLIED TOSOLAR THERMAL ENERGY PLANT APPLIED TO SOLAR THERMAL ENERGY PLANT APPLIED TO

DISTRICT HEATINGDISTRICT HEATINGS C GS C G

Ing. Franco Buscaroli

Ing. Roberto Amidei

1Graz, March 17th, 2011

SDH plant in Italy

Practical Applications in ItalyFerrara

Pomarance:

Serrazzano

Lustignano

Gabbro

Other project coming …

2Agenda

Solar Radiation

Comparing to most of European Countries, Italy has a high solar exposureand radiation….

3

Capacità solare termica per 1000 abitanti nel 2009

Solar Thermal in EuropeSolar Termal Capacity per 1000 persons in 2009

62

611,

7

500

600

700

ab]

3625

2,4

110,

45,

4 ,1 ,8 2 7 6 3 3 1 4 7 6

200

300

400

[kW

ht/1

000

1 75 61,

53,

34,2

32,7

31,6

29,3

28,3

28,1

23,4

21,7

21,6

19 13,5

9,4

5,4

4,7

3,7

3,7

3,4

2,6

1,1

1

0

100

Cip

rost

riaec

iaan

iaM

alta

arca

enia

Cec

aas

siez

iaga

lloag

naur

gota

liael

gio

ncia

anda

chia

onia

Uni

tohe

riaan

iand

iaga

riaon

iaon

iaan

ia

Ci

Aus Gre

Ger

ma M

Dan

ima

Slo

veR

epub

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a C

Pae

si B

aS

veP

orto

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pag

Luss

embu It

Be

Fran Irla

Slo

vacc

Pol

oR

egno

UU

ngh

Rom

aFi

nlan

Bul

gLe

ttoE

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Fonte:EurObserv’er 2010

R

An average of 23,4 kWht of Thermal Capacity per 1.000 persons has beend d i It l b t li ti li it d t d ti

4

recorded in Italy… but applications are limited to domestic use.

Applications of SDH in Italy

In Italy there are no experiences in Solar Thermal Energy Plants applied

to D.H.

AIRU and Ambiente Italia take part to SDH– Take off

5

Integrated Energy Systems

Solar Thermal Plant


Pomarance:

Serrazzano

Lustignano

Gabbro


6Agenda


By communication and dissemination of the project “SDH – takeoff” in

Italy, some feasibilty studies have been activated linked to applications of

Solar District Heating, and other projects are currently planning.

7


Main topics of the “italian” approach to SDH technology should be

summerized as follows:

Use of the Solar Thermal Plants as integrative heat production in

Integrated Energy Systems;

Requirements to operate within systems the temperature of which

is greater than or equal to 90°C out and 55 – 60°C in;

Strong stakeholders’ attention to the integration of the plants into

the landscape;p ;

Present incentive system privileges the use of the “renewable

electric” sources and not the Thermal.

8

electric sources and not the Thermal.


The most in–progress initiatives are now proposed by:

HERA – Ferrara

GES – Pomarance

To develop these projects, a first technical cooperation has been

activated with italian providers.

9

Applications in Italy

HER HERA -Ferrara

GES -Pomarance

10

Pomarance


Solar Thermal Plant


Pomarance:

Serrazzano

Lustignano

Gabbro


11Agenda

The District Heating in Ferrara – Present and Future

The City of Ferrara is served with a District Heating System mainly fed withrenewable sources: the “Geothermal Energy Site” in Casaglia and the“Waste-To-Energy Plant”.

Geothermal Site and WTEWest Ferrara

Main Pipes for heat transport

Municipality of Ferrara

District Heating Users

Development AreaEast Ferrara

12

Polo energie rinnovabili

New Links

Project Outline

The general plan of the new production Area, working with renewable( ll d “P l E i Ri bili”) l t d i t F isources, (so-called “Polo Energie Rinnovabili”) located in eastern Ferrara, is:

Solar District Heating (SDH)g ( )about 1 MWt as a primary source of thermal energy (base-load) for the districtheating network

New Geothermal Source2 Extraction Wells + 1 for re-introducing the fluid in the ground (total 14 MWt)

ORC System for electric power production1 MWe generatorg

2+2 thermal energy storages

13

1 Back-up Thermal Station3 boilers (each of them of 14 MWt)

Integrated Energy System – Development Suggestion for the City of Ferrara

Geothermal Energy Plant 60 °C

Users

90 °C

Th.En. from GEO

Back-up Stations

Methane

90 °C

Th E Th ETh EnCHGas

CH4

Th.En. Th.En. Th.En.Th.En.

Thermal Energy Storages

CH4

Back-up Station

Solar District HeatingEl En From

Storages

Th. En. from WTEWTE

New Geothermal Source ORC U it

El.En. From ORC to the

NetworkTh. En.

14

El.En. from WTE

to the Network- Polo delle energie rinnovabili -

ORC Unit

POLO “CANALBIANCO”“POLO EST”

Size of the Solar Thermal Area

Solar Thermal Energy

1.200 m2 on the buildings’ roof


Panels’ Tilt Angle 35°-45°

Horizontal Surface Radiation: 1 400 kWh/m2 yearHorizontal Surface Radiation: 1.400 kWh/m2-year

Tin = 90°C; Tout = 60°C

H24 Working Thermal Energy Storages

15

Solar Thermal Energy

What’s Solar Thermal Energy Production ?gy

Available Surfaces

16

Awaited Results

City of FerraraCity of Ferrara

Polo Ovest “C. Bianco”

Geothermal Energy Polo EstGeothermal EnergyWTE recovery Polo Energie Rinnovabili

Served Volume 9 mln m3

With the development of an Integrated Energy System in the whole urban territor, is forecast:

Th l E f S l Pl t 1 GWt ?Thermal Energy from Solar Plant: 1 GWt ?

Thermal Energy from Geothermal Plant: 163 GWhEnergy from

Renewable Sources

91%

17

Thermal Energy from WTE: 99 GWh 91%


Solar Thermal PlantSolar Thermal Plant


Pomarance:

Serrazzano

Lustignano

Gabbro


18Agenda

Applications in Italy

Pomarance

Gabbro

Serrazzano

Lustignano

19




Pomarance:

Serrazzano

Lustignano

Gabbro


20Agenda

Total volume served: 62 000 mc 218 users

Serrazzano D.H. (Pomarance)

Total volume served: 62.000 mc 218 users

Thermal Power: 2.400 kWt

Thermal energy demand: 2.330 MWht/year

Tin = 80°C; Tout = 55 - 60°C

Thermal season

Tin 80 C; Tout 55 60 C

Et demand

21

15/10 15/05Service extensible to the whole year

Serrazzano

GEONew solar

plant

22

plant

Serrazzano

S.T. area dimensions

160 mq with 60° inclination without shadow

50 th l l t f50 mq on thermal plant roof

Horizontal surface radiation: 1.500 kWh/ mq/y

Energy storage is planned

60°

23

60°

Integrated Energy System – Developement Design Serrazzano

55 – 60 °C

users

80°C

55 60 C

80°C

Th E Th EnTh.En Th.En

Solar District HeatingEnergy storage

Geothermal

24




Pomarance:

Serrazzano

Lustignano

Gabbro


25Agenda

Lustignano

Total volume served: : 25.000 mc 88 userTotal volume served: : 25.000 mc 88 user

Thermal Power: 850 kWt

Thermal Energy: 780 MWth/year

Tin = 80°C; Tout = 60°Cin out

energia erogata (MWh)

700

800 Thermal Season

400

500

600T.E. demand

100

200

300

energia erogata (KWh)

26

0

data

18‐ott

22‐ott

26‐ott

30‐ott

03‐nov

07‐nov

11‐nov

15‐nov

19‐nov

23‐nov

27‐nov

01‐dic

05‐dic

09‐dic

13‐dic

17‐dic

21‐dic

25‐dic

29‐dic

02‐gen

06‐gen

10‐gen

14‐gen

18‐gen

22‐gen

26‐gen

30‐gen

03‐feb

07‐feb

11‐feb

15‐feb

19‐feb

23‐feb

27‐feb

03‐m

ar

07‐m

ar

11‐m

ar

15‐m

ar

19‐m

ar

23‐m

ar

27‐m

ar

31‐m

ar

04‐apr

08‐apr

12‐apr

16‐apr

20‐apr

24‐apr

28‐apr

02‐m

ag

06‐m

ag

10‐m

ag

14‐m

ag

15/10 15/05Service extensible to the whole

Lustignano

GEOsolarsolar

27

Lustignano

S T area dimensionsS.T. area dimensions

280 mq with 60° inclination without shadow

30 mq on thermal plant roof

Horizontal surface radiation: 1.500 kWh/ mq/yHorizontal surface radiation: 1.500 kWh/ mq/y

60°

28

60

Integrated Energy System – Developement Design Lustignano

55 – 60 °C

users

80°C

55 60 C

80 C

Th E Th EnGeothermal Plant Th.En Th.EnGeothermal Plant

Solar District HeatingThermal Energy

StoragesGeothermal Plant

29




Pomarance:

Serrazzano

Lustignano

Gabbro


30Agenda

Gabbro

Total Volume Served: 500 000 mc 1 400 usersTotal Volume Served: 500.000 mc 1.400 users

Thermal Power: 16.900 kWt

Thermal energy demand: 14.850 MWht/year

Tin = 120°C; Tout = 70°CTin 120 C; Tout 70 C

The technological Goal!!!!g

If T> 120 °C we’ll work on the input pipe

If 80 < T < 120 °C we’ll work on the output pipe

If T < 70 °C we won’t do anything!!

31

f y g

Integrated Energy System – Development Suggestion for Gabbro


300 mq , roof of the “Gabbro” station extendable

300 mq roof of the “Ex mattatoio” Station300 mq, roof of the Ex-mattatoio Station

Horizontal Surface Radiation: 1.500 kWh/mq -year70°C

Thermal Energy Storages are provided.70°C

120 °C

120°C

32

70 °C

“Vacuum” Technology ?

Integrated Energy System – Development Suggestion for Gabbro

UsersInput Pipe

120°C

Output Pipe70°C

Th. En. Th. En.

Geothermal Plant

Solar District HeatingThermal Energy

StoragesGeothermal Plant

33

g




Pomarance:

Serrazzano

Lustignano

Gabbro


34Agenda


Previous examples are the first feasibility studies of S.D.H. applications in Italy.p y pp y

But not the only ones…….

Other Companies are interested to develop this technology applicated to its

services by some feasibility studies.

35

solar thermal energy plant applied tosolar … · in italy there are no experiences in solar...

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