SOLARGE

CONTANK Parking Service

Castellbisbal, Catalonia, Spain

Others: Industry | 570 sqm installation

 

 


Project summary · Technical description · Financing · Development · Downloads

Project Summary

Description
The Castellbisbal’s parking service is a new building where the CSTC has been proposed at the design stage. Thus, the roof structure and the distance between the rafters have been set according to the weight and the size of solar collectors. In this facility, liquid freight goods’ transportation containers from trucks and railways are cleaned. Part of the cleaning process requires hot water vapour.The daily consumption is about 80,000 l at 70º–80º. The CSTC produces 429 MWh which covers 21 % of the total hot water demand.The installation has a monitoring system that allows detecting system incidences through internet.


 


Building

Type of building

Industry

Number of users / dwellings, floors

./.

Year of construction

2005

Total effective area (heated)

./.

Hot tap water consumption (measured/estimated)

not available

Whole energy consumption for heating purpose after CSTS implementation

not available


System engineering

Year of construction of CSTS

2005

Type of collectors

Flat plate collectors

Thermal power

357 kWtherm.

Aperture area of collectors*)

510 m2

Buffer storage

40 m3

Hot tap water storage

6 m3

Total capacity of boilers with energy source

not available

Type of hot tap water heating

Centralised

Type of heating system

./.


Costs

Total cost solar system

268,546 Euro

Cost of the CSTS / gross area of collectors

471 Euro/m2

Subsidies

37.9 %


Output

Output of solar heat**)

429,000 kWh/a

Reduction of final energy***)

613,470 kWh/a

CO2-emissions avoided

not available

Solar performance guarantee

No

*) Aperture area = light transmitting area of the front glass
**) measured, between storage and piping to taps (solar system output)
***) related to the measured output mentioned before

 

 


Daniel González, Aiguasol Enginyeria:

"The participation in this project gave Aiguasol the opportunity to design a solar thermal installation with industrial purposes, thus, to enter in another market. The CSTS for the Parking Service Castellbisbal has been awarded by several organisations such as Eurosolar and the International Energy Agency as an example of good practice."

 

 


Owner

Parking Service Castellbisbal
Constantino Gonzalez
Travessera de Can Estapé, 5-7 Polígono Industrial Can Estapé
Castellbisbal (Barcelona), Spain
Phone: +34 937089600
Fax: +34 937089601
www.pkgservice.com


Operator

See owner

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Technical description

 


Description of the CSTS

Year of construction of CSTS

2005

Thermal power

357 kWtherm.

Gross area of collectors

570 m2

Aperture area of collectors

510 m2 

Type of collectors

Flat plate collectors

Type of assembly

On flat roof

Orientation of collectors

South-East (-24°)

Inclination angle to horizon

25°

Freezing protection

Primary Propenglycol 30 %

Overheating protection

Expansion vessel, safety valve

Operation mode

Low flow

Use of CSTS for

Industry

Buffer storage

40 m3 (one storage tank)

Hot tap water storage

6 m3 (2 × 3 m3)

Control of backup-system / CSTS

not available


Hot tap water system

Type of hot water heating

Centralised

Recirculation system

Yes

For decentralised systems:
The installation on the consumer site

./.

Size of storage for hot tap water

./.

Specification (if necessary)

There is a separated back-up heater/boiler for hot tap water heating only (natural gas).


Space heating system

Type of heating system

./.

Number of boilers

./.

Total capacity (power output) of boilers

./.

Capacity of each boiler (year of construction)

./.

Energy source

./.

Type of boiler system

./.


Type of operation

Operator of the CSTS system

Self-operation

CSTS monitoring

Yes: solar radiation, output of solar heat, total water consumption. GAE supervises the data.

Data accessible via internet

Yes

Scientific monitoring / follow up

No

Maintenance contract

Yes: every three months

Visualisation of the solar heat output

No


Yield of CSTS plant

Output of solar heat

429,000 kWh/a

Origin of data

Design (calculated)

Measuring point

not available

Reduction of final energy

613,470 kWh/a

Origin of data

Estimated

Solar performance guarantee

No


Heat consumption

Whole energy consumption for heating purposes after CSTS implementation

not available

Origin of data

./.

Energy used for

Industrial process

Whole energy consumption for heating purposes before CSTS implementation

not available

Total tap water consumption

not available

Hot tap water consumption

not available

Hot tap water temperature

70–80 °C

Cold water temperature

15 °C

 

 


Summary

The CSTS consists of 9 rows of solar collectors connected in parallel, where 4 of the rows have 8 collectors and 5 of the rows have 12 collectors, all tehem connected in series.The row capacity is 910 l/h, summing up a total capacity of 8,189 l/h.

The CSTS has one heat exchanger and a 40,000-litre solar storage tank. Its nominal solar thermal gradient is 36.6 K.

2 primary pumps SEDICAL SIP 50/150.3-2.2/H (rodet 150) = 8,8 kW

2 secondary pumps SEDICAL SAP 50/9T (rodet 95)



 


Engineering

AIGUASOL Enginyeria
Ignasi Gurruchaga and Daniel González
C/Roger de Llúria nº 29 3er-2a
08009 Barcelona, Spain
Phone: +34 93 342 47 55
fax: +34 93 342 47 56
infoaiguasol(at)aiguasol.coop
www.aiguasol.com

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Financing and investment

 


Financing of the CSTS

Form of financing

Purchase, 51 % self-financing

Distribution in percentage

37.9 % subsidies
11.1 % bonus granted
The 48 % left was paid with direct subsidies granted by the Institute for Energy Diversification and Saving (IDEA), the Catalonian Institute of Energy (ICAEN) and the Minitry of Industry and Mining, a tax reduction and a low interest rate.


Costs of solar materials

Total cost of solar system

268,546 Euro

Detailed costs for

Collectors

182,412 Euro

Elevation / mounting structure

8,855 Euro

Storage / heat exchanger

56,256 Euro

Backup heater

./.

Control

Included in Storage / heat exchanger

Installation

Included in Collectors

Planning / Engineering

11,167 Euro

Others: Comissioning (1), General costs (2)

630 Euro (1)
9,223 Euro (2)


Operation costs of heating system

Other operation cost

1,250 Euro/a
(operation and maintenance)

 



The total investment was 268.546 €. The CSTS has been subsidised by the Institute for Energy Diversification and Saving (IDAE) and the Catalonian Institute of Energy (ICAEN) with a total am ount of 130.000 €. (about 50%, including a tax reduction and a financing scheme with a low interest rate).


Top of page Project summary · Technical description · Financing · Development · Downloads

Development & experiences

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Downloads

PDF datasheet coming soon