With a capacity for an audience of 7500 people, the bullring of Navalcarnero, Madrid (17,000 inhabitants) is not only designed for bullfights, but is also used for sports and music events, as well as a convention centre. Also, it features commercial areas and a museum dedicated to bulls.

The singularity of this bullring is that its lighting, air conditioning and ventilation system uses a control system implemented by Electromontajes Mendiola with ISDE products, an inmotics and domotics manufacturer, under the LonWorks open and interoperable protocol.

Thanks to ISDE’s solution, the Navalcarnero bullring will have energy savings over 35% comparing with a similar enclosure without a distributed control system. The capacity to control the switch on time of the air conditioning equipment together with a higher use of natural light are partially responsible for these savings, which besides benefiting the municipality, contributes to the protection of the environment by considerably reducing CO2 emissions to the athmosphere.

Other favourable consequences, due to the installation of automated systems in the Navalcarnero bullring, can be summed up in the simplification of the wiring, the easy maintenance of the installation and the increase in comfort for the audience.
 

“The circular architecture typical of bullrings was a handicap in the integration of all installations (air conditioning, ventilation and lighting). The installation of only one control bus, which covers the bullring’s circumference and transmits all necessary information for the control of the ring, has avoided the installation of over 149 cables around the outer circumference,  which means a huge saving in wiring, besides making it easier to maintain it in the future and possible repairs,” explains Javier Bescós, Inmotics Manager at ISDE, in detail.

Control system and air conditioning to meet CTE requirements

Lighting control is defined according to external light and a previously set time schedule, reducing working hours for the staff in charge of managing the room and avoiding waste in energy control.

The external light measuring system used to determine whether it is necessary to light the bullring , is adjusted to the new energy efficiency European regulation which is the basis for the Spanish Building Technical Code. On the other hand, there is an intelligent switch on management for air conditioning equipment which makes it possible to avoid a voltage increase that could leave the whole ring without energy supply. Following the same sustainability criteria, different probes measure the temperature and control the various heating and air conditioning machines.

Maintenance and security are reinforced with ISDE’s solution, as the enclosure features an alarm monitoring system for all its air conditioning equipment to detect malfunctions and for predictive maintenance.

The advantage of working with open technology

As in all ISDE’s solutions, products work under the LonWorks protocol, known to be open and interoperable. The election of an open system allows for the integration of all systems, while on the other hand ensures reliable and sobust communication, delivering numerous orders sent one at a time, in the different lighting, air conditioning and ventilation macros of the bullring: entry of the audience in the ring, beginning of the event, clozing of the ring, nocturnal festive illumination, etc.

Furthermore, the election of a LonWorks system ensures future enlargement of the system and avoids the possible entertainment monopoly due to the huge number of companies and manufacturers working under this protocol in continuous technological progress.