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Barcelona, Catalonia, Spain
Sports Centre | 371 sqm installation
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Description
The CSTS has been installed in the Picornell swimming pools to cover the hot water demand of the showers and the gym. The solar thermal installation has been designed in the form of a pergola to shadow the sport centre parking lot. | 
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Building
| Type of building | Sports centre
| Number of users / dwellings, floors | 3,000 users/day
| Year of construction | 1991
| Total effective area (heated) | not available | Hot tap water consumption (measured/estimated) | 32,670 m3/a (measured)
| Whole energy consumption for heating purpose after CSTS implementation | 522,932 kWh/a |
System engineering
| Year of construction of CSTS | 2004
| Type of collectors | Flat plate collectors
| Thermal power | 234 kWtherm.
| Aperture area of collectors*) | 334 m2 | Buffer storage | 9 m3 | Hot tap water storage | size not available | Total capacity of boilers with energy source | not available
| Type of hot tap water heating | Centralised
| Type of heating system | ./.
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Costs
| Total cost solar system | 160,237 Euro | Cost of the CSTS / gross area of collectors | 432 Euro/m2 | Subsidies | 20 % |
Output
| Output of solar heat**) | 258,611 kWh/a | Reduction of final energy***) | 369,444 kWh/a | CO2-emissions avoided | 65 CO2/a
| 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 | |
Antonio Ortega, Bernat Picornell Sport Centre / SEAE Group Maintenance Manager - Aigua Esport i Salut SL (AES SL):
|  "I highly recommend these kind of installations, all are advantages!
A non polluting energy is used, heat production and a high performance are obtained and money is saved from the reduction of natural gas consumption (which is not an renewable energy resource). Moreover,the sport centre has won a second added value with the pergola system as shading device on the parking lot."
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Owner
| Bernat Picornell Sport Centre
Lidia Gascueña
Av. de l'Estadi 30-38
08038 Barcelona, Spain
Phone: +34 93 423 40 41
Fax: +34 93 426 10 66
info(at)picornell.cat
www.picornell.cat |
Operator
| See owner | |
Description of the CSTS
| Year of construction of CSTS | 2004
| Thermal power | 234 kWtherm. | Gross area of collectors | 370.9 m2 | Aperture area of collectors | 334.4 m2 | Type of collectors | Flat plate collectors
| Type of assembly | Solar roof
| Orientation of collectors | South (0°) | Inclination angle to horizon | 15°
| Freezing protection | Glycol. Primary: Propenglycol 20 %, Secondary: Water
| Overheating protection | Expansion vessel. Primary vessel: 700 l, Secondary vessel: 500 l
| Operation mode | Low flow
| Use of CSTS for | Hot tap water heating
| Buffer storage | 9 m3 (3 × 3 m3) | Hot tap water storage | There is a hot tap water storage, but the info is not available. | Control of backup-system / CSTS | Separated control, normal boiler
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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 | not available | Specification (if necessary) | Separated back-up heater/boiler for hot water heating only: standard, natural gas, capacity not available |
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, building manager
| CSTS monitoring | Yes: output of solar heat. Data related to the energy generated by the collector field, the power and the outflow/inflow water temperature are obtained throught the metre. Besides the user's monitoring, the Barcelona Energy Agency collects this data annually.
| Data accessible via internet | No
| Scientific monitoring / follow up | No
| Maintenance contract | Yes: two to four times a year
| Visualisation of the solar heat output | Yes: in the secondary circuit, before the water storage process begins
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Yield of CSTS plant
| Output of solar heat | 258,611 kWh/a | Origin of data | Design (calculated)
| Measuring point | Between storage and piping to taps
| Reduction of final energy | 369,444 kWh/a | Origin of data | Aiguasol
| Solar performance guarantee | No
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Heat consumption
| Whole energy consumption for heating purposes after CSTS implementation | 522,932 kWh/a | Origin of data | Estimated
| Energy used for | Hot tap water heating
| Whole energy consumption for heating purposes before CSTS implementation | 892,376 kWh/a
| Total tap water consumption | not available
| Hot tap water consumption | 32,670 m3/a | Hot tap water temperature | 40 °C | Cold water temperature | 9–24 °C | |
Summary
| The CSTS has collector surface are of 334 m2 composed of 176 solar collectors with a 15° slope, oriented to the South. The CSTS is a classic system, where storage tanks are connected in parallel, meaning that the water in the first tank (3,000 l) is heated first, and consecutively, the water of the other two tanks.
The system consists of four solar collector rows. Each one heats 3,540 l/h of water.
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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 | |
Financing of the CSTS
| Form of financing | Purchase
| Distribution in percentage | 20 % subsidies
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Costs of solar materials
| Total cost of solar system | 160,237 Euro | Detailed costs for
| | Collectors
| 121,913 Euro | Elevation / mounting structure
| 976 Euro | Storage / heat exchanger
| 19,745 Euro | Backup heater
| ./. | Control
| Included in Storage / heat exchanger | Installation
| Included in Collectors
| Planning / Engineering
| 11,624 Euro | Others: Commisioning (1), General costs (2)
| 2,977 Euro (1)
3,000 Euro (2)
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Operation costs of heating system
| Increase of the operation cost after CSTS implementation | not available
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The financing entity was the Barcerlona's municipality, through the Energy Agency who played a role as representative and promoter. The subsidy was granted by the Institute for Energy Diversification and Saving (IDAE), on a national level.
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Qualitative aspects of the CSTS
The Municipal Action Plan (PAM) 1999–2003 aimed to install solar thermal systems in municipal buildings. Additionally, in 2002, a Plan for Energy Improvement (PMEB) entered into force in Barcelona which aimed, among others, to cover the hot tap water demand of existing sport centres with solar thermal systems. Those two plans contributed to the installation of the CSTS in the Bernat Picornell Sport Centre. The installation was self financed and partly subsidised.
The planning of the CSTS has been optimised by the use of TRNSYS. It allowed estimating accurately the size of the future installation's performance. The architectural design was also an important issue in this project. The solar collectors as pergolas have been carefully designed.
The engineering company gained experience on solar collectors in the form of pergolas and on underground insulated piping systems and would recommend a variable flow in the primary system. The installation was not working properly but several steps have been carried out lately to improve its performance.
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Experiences management
| Experienced problems or failures? | Yes:
In principle, the installation is working properly. Some problems were encountered due to lack of maintenance and upgrade.
| Found solutions to these problems or failures? | Yes:
Currently, the sport centre staff is working on the upgrade. They are improving the installation's performance and taking advantage of that improvement by using the heat production not only for hot tap water heating but also for swimming pool water heating and other services).
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Financial effects / project performance
| Project economically efficient? | Yes
| Fiscal or other financial effects? | Yes:
The only financial effect is the saving on natural gas consumption.
| Effects on rental fees? | No
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Experiences technical staff
| Experienced problems or failures? | Yes:
Lack of maintenance
| Found solutions to these problems or failures? | Yes:
It is on going.
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Management
| Barcelona Energy Agency
Joseph Vela
Nil Fabra, 20 bajos
08012 Barcelona, Spain
Phone: +34 93 237 47 43
Fax: +34 93 237 08 94
recursos(at)bcn.cat
www.barcelonaenergia.cat
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PDF datasheet coming soon
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