Page 177 - New Trends in Green Construction

SOCIAL INMOTIC TO IMPROVE ENERGY EFFICIENCY IN PUBLIC BUILDINGS: EFIPUBLIC PROJECT
Beatriz Montalbán Pozas, Irene Amigo Gamero, Agustín Sánchez Domínguez
Keywords: sensorization, smart building, social inmotic, public building, energy efficiency, usage habits 1. Introduction
Energy inefficiency of many public buildings is a worrying reality. Among other consequences, there is currently a waste of energy resources, situations of great discomfort, inefficiency of HVAC systems, wasted space, or inappropriate uses and habits, (D’Agostino, Cuniberti and Bertoldi, 2017). On the other hand, the advance in recent years of TICs, smart management and control systems, or the information in real time, is allowing us to address actions to improve buildings that could get positive results (Semprini et al., 2016), (Allab et al., 2017). It should also be mentioned that the study of the influence of user behaviour is decisive in the final results (Pisello et al., 2016), (OrbEEt, 2017). The in-depth study of a large teaching building: School of Technology in Cáceres (Extremadura University), through Efipublic project (Social Inmotic for the improvement of public buildings 2017-2020), is enabling the design and placement of sensorization and control devices, as well as the open and public data monitoring and its subsequent actions and users’ participation.
2. Materials and methods
In this study a methodology to improve energy efficiency, currently under experimentation in a university public building, is developed. The method is developed in four stages: first of all, a building static data characterization is developed: typology and construction systems, equipment and HVAC, as well as consumption ratios through invoices and theoretical occupation. Then, a dynamic data characterization with low cost sensors has been carried out (Bamodu, Xia and Tang, 2017), data storage and visualization systems of water, electricity, and gas consumption, air quality, thermal comfort, real occupation, schedules facilities, etc. Thirdly, data tracking from previous characterizations is developed to detect deficiencies and propose improvement actions, and strategies according to climate period. Fourthly and finally, a smart control system with several levels of access will be developed to deliver to users (Sun and Hong, 2017), (Staddon et al., 2016).
3. Results and conclusions
Some temporary results are: it has been defined as a set of actions in the use of thermal and electrical energy, and water consumption (sometimes with alarms), it also has been developed summer and winter strategies with usage guidelines bases in the annual period: window opening, shading, natural ventilation, etc., or information screens about hygrotermic and comfort conditions has been created and can be visualized with public monitoring. Results allowed us to design and expand the sensorization with new displays and parameters to measure. In addition, a typical user profile has been created to adjust the communication channels, so the monitored information will be effective:
- to managers and maintainers, with direct action in the programming of the systems, replacement of energy consuming equipment, etc.
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New Trends in Green Construction