LÓPEZ, M.; YÁÑEZ, A.; GOMES DA COSTA, S.; AVELLÀ, L., (Coord.). Actas del Congreso Internacional de Eficiencia Energética y Edificación Histórica / Proceedings of the International Conference on Energy Efficiency and Historic Buildings (Madrid, 29-30 Sep. 2014). Madrid: Fundación de Casas Históricas y Singulares y Fundación Ars Civilis, 2014. ISBN: 978-84-617-3440-5
Edited by
Fundación de Casas Históricas y Singulares Fundación Ars Civilis
Coordinated by
Mónica López Sánchez. Fundación Ars Civilis
Ana Yáñez Vega. Fundación de Casas Históricas y Singulares Sofia Gomes da Costa. Fundación de Casas Históricas y Singulares Lourdes Avellà Delgado. Fundación Ars Civilis
© Copyright
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PRESENTACIÓN ... 11
Eficiencia energética y edificación histórica: un reto del presente... 13
-Cristina Gutiérrez-Cortines y Mónica López Sánchez. Fundación Ars Civilis Eficiencia energética y edificación histórica: un reto del futuro ... 14
-Ana Yáñez Vega. Fundación de Casas Históricas y Singulares Committees ... 15
Programme ... 16
-Governance, management, participation and mediation...- 21 -
SUSTAINABLE ENERGY ACTION FOR WORLD HERITAGE MANAGEMENT ... 22
-RONCHINI, C.; POLETTO, D. ENERGY EFFICIENCY AND URBAN RENEWAL OF A UNESCO-LISTED HISTORICAL CENTER: THE CASE OF PORTO ... 38
-SANTOS, Á.; VALENÇA, P.; SEQUEIRA, J. HISTORICAL HERITAGE: FROM ENERGY CONSUMER TO ENERGY PRODUCER. THE CASE STUDY OF THE ‘ALBERGO DEI POVERI’ OF GENOA, ITALY ... 45
-FRANCO, G.; GUERRINI, M.; CARTESEGNA, M. IMPROVING ENERGY EFFICIENCY IN HISTORIC CORNISH BUILDINGS – GRANT FUNDING, MONITORING AND GUIDANCE ... 61
-RICHARDS, A. ENERGY EFFICIENCY AND BUILDINGS WITH HERITAGE VALUES: REFLECTION, CONFLICTS AND SOLUTIONS ... 75
-GIANCOLA, E.; HERAS, M. R. PROPUESTA METODOLÓGICA PARA LA REHABILITACIÓN SOSTENIBLE DEL PATRIMONIO CONTEXTUAL EDIFICADO. EL CASO DEL CENTRO HISTÓRICO DE LA CIUDAD DE MÉRIDA, YUCATÁN / Methodological proposal for the sustainable rehabilitation of context heritage building. The case of the historic downtown of Merida, Yucatan ... 82
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Traditional and technological knowledge: concepts, techniques, practices, uses,
materials, methodologies ...- 99 -
SUSTAINABLE REFURBISHMENT OF HISTORIC BUILDINGS: RISKS, SOLUTIONS AND
BEST PRACTICE ... 100
-HEATH, N.
EFICIENCIA ENERGÉTICA Y VALORES PATRIMONIALES. LECCIONES DE UNA
INVESTIGACIÓN Y UN SEMINARIO / Energy efficiency and heritage values. Lessons of
a Research and a Seminar ... 110
-GONZÁLEZ MORENO-NAVARRO, J. L.
ARCHITECTURAL INTEGRATION OF PHOTOVOLTAIC SYSTEMS IN HISTORIC DISTRICTS.
THE CASE STUDY OF SANTIAGO DE COMPOSTELA ... 118
-LUCCHI, E.; GAREGNANI, G.; MATURI, L.; MOSER, D.
HISTORIC BUILDING ENERGY ASSESSMENT BY MEANS OF SIMULATION TECHNIQUES ... 135
-SOUTULLO, S.; ENRIQUEZ, R.; FERRER, J. A.; HERAS, M. R.
DESIGN OF A CONTROL SYSTEM FOR THE ENERGY CONSUMPTION IN A WALL-HEATED
CHURCH: SANTA MARIA ODIGITRIA IN ROME ... 145
-MANFREDI, C.; FRATERNALI, D.; ALBERICI, A.
EXEMPLARY ENERGETICAL REFURBISHMENT OF THE GERMAN ACADEMY IN ROME
"VILLA MASSIMO" ... 160
-ENDRES, E.; SANTUCCI, D.
SISTEMA MÓVIL INTEGRADO PARA LA REHABILITACIÓN ENERGÉTICA DE EDIFICIOS: LÁSER 3D, TERMOGRAFÍA, FOTOGRAFÍA, SENSORES AMBIENTALES Y BIM / Integrated mobile system for building energy rehabilitation: 3D laser, termography, fotography,
environmental sensors and BIM ... 169
-SÁNCHEZ VILLANUEVA, C.; FILGUEIRA LAGO, A.; ROCA BERNÁRDEZ, D.; ARMESTO GONZÁLEZ, J.; DÍAZ VILARIÑO, L.; LAGÜELA LÓPEZ, S.; RODRÍGUEZ VIJANDA, M.; NÚÑEZ SUÁREZ, J.; MARTÍNEZ GÓMEZ, R.
CONSECUENCIAS CONSTRUCTIVAS Y ENERGÉTICAS DE UNA MALA PRÁCTICA. ARQUITECTURAS DESOLLADAS / Energy and constructive consequences of a bad
practice. Skinned architectures ... 186
-DE LUXÁN GARCÍA -DE DIEGO, M.; GÓMEZ MUÑOZ, G.; BARBERO BARRERA, M.; ROMÁN LÓPEZ, E.
EL BIENESTAR TÉRMICO MÁS ALLÁ DE LAS EXIGENCIAS NORMATIVAS. DOS CASOS. DOS ENFOQUES / Thermal comfort beyond legislation. Two examples. Two
approaches ... 201
-DOTOR, A.; ONECHA, B.; GONZÁLEZ, J. L.
LA MONITORIZACIÓN Y SIMULACIÓN HIGROTÉRMICA COMO HERRAMIENTA PARA LA MEJORA DEL CONFORT, PRESERVACIÓN Y AHORRO ENERGÉTICO DE ESPACIOS
PATRIMONIALES. EL CASO DE LA IGLESIA DE SAN FRANCISCO DE ASIS, MORÓN DE LA FRONTERA / Measurement and hygrothermal simulation model, a tool to enhance thermal comfort, preservation and saving energy of heritage site. Case study: the
church of San Francisco of Asís in Morón de la Frontera ... 210
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TERESE3: HERRAMIENTA INFORMÁTICA PARA LA EFICIENCIA ENERGÉTICA MEDIANTE
LA SIMULACIÓN CALIBRADA DE EDIFICIOS / TERESE3: informatic tool for the energetic
efficiency through the calibrated simulation of buildings ... 226
-GRANADA, E.; EGUÍA, P.; MARTÍNEZ, R.; NÚÑEZ, J.; RODRÍGUEZ, M.
EFICIENCIA ENERGÉTICA Y ANÁLISIS TÉRMICO PARA SISTEMAS DE AIRE
CENTRALIZADO: UN CASO DE ESTUDIO / Energy Efficiency and thermal analysis for
centralized air heating systems: a case study ... 238
-MARTÍNEZ-GARRIDO, M. I.; GOMEZ-HERAS, M.; FORT, R.; VARAS-MURIEL, M. J.
ANALISIS ENERGETICO DEL MUSEO DE HISTORIA DE VALENCIA MEDIANTE DISTINTAS HERRAMIENTAS DE SIMULACIÓN / Energy assessment of the History Museum of
Valencia using various simulation tools ... 249
-TORT-AUSINA, I.; VIVANCOS, J.L.; MARTÍNEZ-MOLINA, A.; MENDOZA, C. M.
APROVECHAMIENTO SOLAR PASIVO EN LA RETÍCULA URBANA DE LA CIUDAD HISTÓRICA. EL CASO DE CÁDIZ / Passive solar gains in the urban grid of the historic
city. The case study of Cadiz ... 257
-SÁNCHEZ-MONTAÑÉS, B.; RUBIO-BELLIDO, C.; PULIDO-ARCAS, J. A.
TECHNICAL SYSTEM HISTORY AND HERITAGE: A CASE STUDY OF A THERMAL POWER
STATION IN ITALY ... 275
-PRETELLI, M.; FABBRI, K.
ANALISIS ENERGÉTICO Y PROPUESTAS DE MEJORA DE UNA CASA EN REQUENA MEDIANTE PROGRAMAS DE SIMULACIÓN / Energy analysis and improvement
proposal of a house in Requena (Spain) using simulation software ... 281
-TORT-AUSINA, I.; VIVANCOS, J.L.; MARTÍNEZ-MOLINA, A.; MENDOZA, C. M.
UNA REVISIÓN DE PUBLICACIONES EN EDIFICIOS DESDE EL ASPECTO ENERGÉTICO / A
review of papers in buildings from the energetic perspective ... 292
-TORT-AUSINA, I.; MARTÍNEZ-MOLINA, A.; VIVANCOS, J.L.
MORTEROS MIXTOS DE CAL Y CEMENTO CON CARACTERÍSTICAS TÉRMICAS Y ACÚSTICAS MEJORADAS PARA REHABILITACIÓN / Lime-cement mixture with
improved thermal and acoustic characteristics for rehabilitation ... 303
-PALOMAR, I.; BARLUENGA, G.; PUENTES, J.
NEAR ZERO ENERGY HISTORIC BUILDING. TOOLS AND CRITERIA FOR ECOCOMPATIBLE
AND ECOEFFICIENT CONSERVATION ... 318
-BAIANI, S.
INTEGRANDO RENOVABLES EN LA CIUDAD HEREDADA: GEOTERMIA URBANA /
Integrating renewable in the inherited city: urban geothermal ... 329
-SACRISTÁN DE MIGUEL, M. J.
ANÁLISIS Y PROPUESTAS DE MEJORA DE LA EFICIENCIA ENERGÉTICA DE UN EDIFICIO HISTÓRICO DE CARTAGENA: ANTIGUO PALACIO DEL MARQUÉS DE CASA-TILLY / Analysis and proposals for improving the energy efficiency of a historical building in
Cartagena: the former Palace of the Marquis of CasaTilly ... 344
-COLLADO ESPEJO, P. E.; MAESTRE DE SAN JUAN ESCOLAR, C.
REHABILITACIÓN ENERGÉTICA DE EDIFICIOS DE VIVIENDAS BAJO EL PLAN ESPECIAL DE PROTECCIÓN DEL PATRIMONIO URBANÍSTICO CONSTRUIDO EN DONOSTIA-SAN SEBASTIÁN / Building energy retrofit of dwellings under the special plan of urban
More contents on http://energyheritage.wordpress.com/
- 8 - MARTÍN, A.; MILLÁN, J. A.; HIDALGO, J. M.; IRIBAR, E.
IS TEMPERIERUNG ENERGY EFFICIENT? THE APPLICATION OF AN OLD-NEW HEATING
SYSTEM TO HERITAGE BUILDINGS ... 366
-DEL CURTO, D.; LUCIANI, A.; MANFREDI, C.; VALISI, L.
TERMOGRAFÍA INFRARROJA Y EDIFICIOS HISTÓRICOS ... 380
-MELGOSA, S.
SIMULATION MODEL CALIBRATION IN THE CONTEXT OF REAL USE HISTORIC
BUILDINGS ... 388
-ENRÍQUEZ, R.; JIMÉNEZ, M.J.; HERAS, M.R.
THE THERMOPHYSICAL CHARACTERIZATION OF TECHNICAL ELEMENTS IN THE
HISTORIC ARCHITECTURE: EXPERIENCES IN PALERMO ... 397
-GENOVA, E.; FATTA, G.
ENERGY EVALUATION OF THE HVAC SYSTEM BASED ON SOLAR ENERGY AND
BIOMASS OF THE CEDER RENOVATED BUILDING ... 407
-DÍAZ ANGULO, J. A.; FERRER, J. A.; HERAS, M. H.
Legal and technical regulation and historic buildings ... - 419 -
OLD BUILDING, NEW BOILERS: THE FUTURE OF HERITAGE IN AN ERA OF ENERGY
EFFICIENCY ... 420
-JANS, E.; ICOMOS, M.; KOPIEVSKY, S.; AIRHA, M.
HISTORIC WINDOWS: CONSERVATION OR REPLACEMENT. WHAT'S THE MOST
SUSTAINABLE INTERVENTION? LEGISLATIVE SITUATION, CASE STUDIES AND CURRENT
RESEARCHES ... 432
-PRACCHI, V.; RAT, N.; VERZEROLI, A.
ENERGY RETROFIT OF A HISTORIC BUILDING IN A UNESCO WORLD HERITAGE SITE: AN
INTEGRATED COST OPTIMALITY AND ENVIRONMENTAL ASSESSMENT... 450
-TADEU, S.; RODRIGUES, C.; -TADEU, A.; FREIRE, F.; SIMÕES, N.
PARQUE EDIFICADO O PATRIMONIO EDIFICADO: LA PROTECCIÓN FRENTE A LA INTERVENCIÓN ENERGÉTICA. EL CASO DEL BARRIO DE GROS DE SAN SEBASTIÁN / Built Park or Built Heritage: Protection against energy intervention. The case of Gros
district of San Sebastian ... 464
-URANGA, E. J.; ETXEPARE, L.
SIMULTANEOUS HERITAGE COMFORT INDEX (SHCI): QUICK SCAN AIMED AT THE SIMULTANEOUS INDOOR ENVIRONMENTAL COMFORT EVALUATION FOR PEOPLE AND ARTWORKS IN HERITAGE BUILDINGS ... 478
-LITTI, G.; FABBRI, K.; AUDENAERT, A.; BRAET, J.
PROBLEMÁTICA DE LA POSIBLE CERTIFICACIÓN ENERGÉTICA CON CE3X DEL
PATRIMONIO ARQUITECTÓNICO: EL CASO DEL ALMUDÍN DE VALENCIA / Difficulties found in the possible energy certification of heritage by using the CE3X software: the
case of El Almudín of Valencia ... 495
-CUARTERO-CASAS, E.; TORT-AUSINA, I.; MONFORT-I-SIGNES, J.; OLIVER-FAUBEL, E. I.
PROTOCOL FOR CHARACTERIZING AND OPTIMIZING THE ENERGY CONSUMPTION IN
PUBLIC BUILDINGS: CASE STUDY OF POZUELO DE ALARCÓN MUNICIPALITY ... 506
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Promotion, training, education ... - 513 -
THE WORK OF THE SUSTAINABLE TRADITIONAL BUILDINGS ALLIANCE AND AN
INTRODUCTION TO THE GUIDANCE WHEEL FOR RETROFIT ... 514
-MAY, N.; RYE, C.; GRIFFITHS, N.
TRAINING OF EXPERTS FOR ENERGY RETROFIT AT THE FRAUNHOFER CENTRE FOR THE ENERGY-SAVING RENOVATION OF OLD BUILDINGS AND THE PRESERVATION OF
MONUMENTS AT BENEDIKTBEUERN ... 528
-KILIAN, R.; KRUS, M.
SPECIALIZED ENERGY CONSULTANTS FOR ARCHITECTURAL HERITAGE ... 535
-DE BOUW, M.; DUBOIS, S.; HERINCKX, S.; VANHELLEMONT, Y.
RENERPATH: METODOLOGÍA DE REHABILITACIÓN ENERGÉTICA DE EDIFICIOS PATRIMONIALES / RENERPATH: Methodology for Energy Rehabilitation of Heritage
Buildings ... 543
-PERÁN, J. R. ; MARTÍN LERONES, P.; BUJEDO, L. A.; OLMEDO, D.; SAMANIEGO, J.; GAUBO, F.; FRECHOSO, F.; ZALAMA, E.; GÓMEZ-GARCÍA BERMEJO, J.; MARTÍN, D.; FRANCISCO, V.; CUNHA, F.; BAIO, A.; XAVIER, G.; DOMÍNGUEZ, P.; GETINO, R.; SÁNCHEZ, J. C.; PASTOR, E.
LEVANTAMIENTOS ARQUITECTÓNICOS EN EL MEDIO RURAL / Architectural surveys in
rural areas ... 553
-HIDALGO, J.M.; MILLÁN, J. A.; MARTÍN, A.; IRIBAR, E.; FLORES, I.; ZUBILLAGA, I.
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RUBIO, A.; MACÍAS, M.; LUMBRERAS, J.
RUBIO, A.: PhD student of Environmental Engineering- Universidad Politécnica de Madrid. Madrid – España. [email protected]
MACÍAS, M.: Departamento de Ing. Civil, Ordenación del Territorio y Medio Ambiente. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos. Universidad Politécnica de Madrid. Madrid – España.
LUMBRERAS, J.: Departamento de Ing. Química Industrial y Medio Ambiente; Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid. Madrid – España. [email protected]
ABSTRACT
The European EPBD[6] regulations and its adequacy to the local norms draw a design guideline based on the improving energy efficiency on designing new buildings and checking existing buildings.
The first objective of this work is how characterizing and optimizing energy efficiency in public existing buildings with an order (a protocol), through a process with the following characteristics: easy, economic and reliable. Besides it is looking for the same protocol useful in a European EPBDframe.
The present work is applicable to the buildings of the public heritage in the case they are in some kind of heritage official protection, although they are not obligated by the EPDB.
The two main aims of the EPBDare energy saving and lower carbon dioxideemissions. Perhaps both will be compromised if we do not correct the present tendency, firstly in the public buildings as the best and necessary example for the rest of the existing buildings stock.
Key words: public existing buildings, real energy consumption, theoretical energy consumption, optimization, characterization.
1. INTRODUCTION
- 507 - Fig.1 Share of buildings consumption in total final consumption (2009)
There are several studies in Europe around how to consider energy certificates to reduce energy consumption in European public buildings [3], energy performance assessment in public school buildings [4], and enhancing energy efficiency in public buildings [5] but nevertheless, there is something pending to consider: How can we study in an ordered protocol the way to calculate the full amount of primary energy consumed, characterize an optimize any public building?
Having the commitment of obtaining the energy performance certificates for the public buildings of the Pozuelo de Alarcon municipality, there is a good occasion for this research. At the same time we obtain the corresponding energy performance certificate for each public building, we can develop the primary energy consuming, characterizing and optimizing each public building.
As an additional background information, according to the new Directive 2010/31/EU [6] (EPBD Directive), the certification procedure for energy efficiency means that an "independent expert" has to conduct an audit to verify the mark and be able to perform or optimize the "record" of the building, with the added value, energy saving and lower carbon dioxide (CO2) emissions that this implies. This obligation is imposed by the implementation of the Directive for all the existing buildings and particularly to the public buildings in the article 12 [6]. There are a “Setting of minimum energy performance requirements” as is followed in article 4 here the norm is that member states can make an exclusion for “officially protected as part of a designated environment or because of their special architectural or historical merit, in so far as compliance with certain minimum energy performance requirements would unacceptably alter their character or appearance”. This normative rule implies we cannot modify the envelope of the building but the proposed optimization can be developed by improving the building facilities.
In the base of the EPBD we propose to make a more detailed study about the proceeding to follow the commitment established by the European norm. Let us develop a protocol in order to make it more reliable. The proposal to consider in this work is based in developing a methodology based on a complete analysis of the invoices available from the companies contracted by the Public Administration for the energy supply and, at the same time, the theoretical calculation of the energy demand and consume with the official computer based models implemented.
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- 508 - a) Obtain the real present consume of the building using the provider invoices;
b) Make calculations in the present situation with the official models approved for energy efficiency certification (local computer based programs);
c) Characterization of the public building with the method proposed;
d) Optimization proposal based on the real consumes and the theoretical calculations; e) Reiterate calculations using the computer based national standard approved method
(national computer programs);
f)
New characterization of the public building in the optimized conditions (new method proposed).2. DEVELOPING A PROTOCOL
A. Actual situation of energy consumption.
How do we have to proceed to obtain the actual consumption of the building? In order to proceed with the development of the protocol, the actual consumption of the building must be kwon. How is it obtained?
The proposal to consider in this paper is based on a methodological system to check the actual consumption in existing buildings at the same time we are calculating it with by the demand with models implemented in computer programs. I propose the implementation of a method based on obtaining energy values by the given invoices from the different companies.
Stages of the first point of the process:
• Collect all the invoices from the different energy supply companies;
• Sum the different consumes:
− Heating consumption (EH);
− Cooling consumption (EC);
− PHW (Public Hot Water) consumption (EPWH);
− Electrical power for lighting and miscellaneous uses consumption, all appliances (EEP); Total actual energy consumption: EA= EH+EC+ EPWH+ EEP
• Calculations in the actual situation with the approved and standardized national methods (computer programs).
• Calculations of energy demand of the building with contrasted international methods (tested computer programs).
• Optimization proposal attending to the results obtained in the calculations.
• Supposed recalculation in the future situation with the approved and standardized national methods (computer programs).
B. Commissioning and model calculation of the public building
- 509 - miscellaneous uses of the building according to the same standard and based on demand from
the public building.
Visual inspection of the building
This inspection consists of a visual verification of each of the equipment that will contain the inventory used in the study.
It has to be identify each of the equipment analysed (photo essay may be annexed), the reference of the installed equipment and PC’s for offices.
An indication of the main technical characteristics of each of the equipment contained in the inventory: brand, model, power consumption, etc.
Make detailed inventory of consumer equipment
Guidance for the elaboration of the detailed inventory of all the consumer equipment within the building:
Heating and cooling systems have to be related in the inventory. Cooling consumption can be zero if it is not installed;
Lightening;
Other electric appliances usually connected have to be taken into account.
Equipment associated with renewable energy sources has to be included if installed (electric pumps and so on);
Analysis of building construction characteristics;
Analysis of the seasonal conditions in energy consumption;
Evaluation of the causes of the different energy consumption between established periods (e.g., consumption changes from summer to winter months due to the variability of the demand for air conditioning and heating systems).
Calculation of theoretical consumption. Establishment of baseline consumption by a consolidated reference model (EM).
The theoretical calculation is made takes into account the weather conditions, building position and public building use. In case there is some other factor that may modify the consumption it will also be taken into account for the calculation of the total building consumption.
• Final energy consumption value:
EF= (0.5) x EA + (0.5) x EM
We propose, as an hypothesis, the same weigh for the real consume values- what it real consumes in a fixed recent year- and the supposed energy consume value- what should consume in its characteristic conditions (should be the same than in the year when the real consumes are taken).
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- 510 - because in the real consume (EA) of the building we keep in count all the facilities installed in the
building (elevators, mobile machines, provisional machinery, cafeteria, etc.), which are not kept in count in the theoretical model, and the result is usually higher as the results shown in the case study. The model could throw a higher result when the use of the building is not corresponding to the usual ones of the model and is really used less than the theoretical model is calculating, then this value should be correct. The conclusion is we consider a value with approximate the value to the optimal, because we are considering a value in-between both, which eliminates part of bad using in the public building (especially lighting without control and insufficient monitoring) or different real use, in time terms, than the model is considering.
There are good works about energy performance assessment of existing residential buildings [7] [8], especially the EPA-ED method [7] witch are following the ISO 13790 [9] but, all of them are calculating the building energy theoretical demand, and not the building energy consume, and from it, doing the savings calculations. In our case, we are working out a protocol calculating the present building consume, as easy and reliable as possible, for the public buildings, but more accurate than considering only the theoretical model value (as is done usually in most of the cases for the labelling).
C. Characterizing the building
The next step has to be what kind of building we are as a consequence of the different results obtained with the following scale:
a) High consume public building (HCPB)
EF ≥ 400 [KWh/m
2.year]
Identification colour: red
b) Medium consume public building (MCPB) 250 [KWh/m2.year] ≤ EF < 400 [KWh/m
2. year] Identification colour: orange
c) Low consume public building (LCPB) 100 [KWh/m2.year] ≤ EF < 250 [KWh/m
2. year] Identification colour: yellow
d) Energy optimized public building (EOPB)
EF < 100 [KWh/m
2.year]
Identification colour: green
D. Method for optimizing
The next steps will be followed:
i. Energy performance proposals for the optimization based in the consume value obtained, ordered to achieve an improvement of at least a level, except the optimize building of the characterization obtained.
- 511 - iii. Optimization proposals: Three different proposals and an additional one improving the
monitoring system for the public building.
iv. Final results that we will obtain with each different proposal. Certification value with the local standard models and real energy savings- not valuable in monetary units but in energy ones- in Kwh.
v. New characterization of the public building with the standard and simplified method proposed in C.
3. CONCLUSIONS
The building certification process has to be a thorough work to offer all guarantees of its accuracy.
The exposed method could be valid for the public building performance certification technician and the administration obliged to the necessary control. The building performance certification and labelling accreditation could be audited in commissioning with a private or official control without any fear to be failed in the result if the method is adequate.
The labelling process in public buildings will have an image effect when exposing it is compulsory. The public display of the label can be supported with the optimization; a better label will be an advantage. “For local municipalities there is a need to appreciate the benefits that a whole management has” [3].
The public building energy efficiency certification demands a good protocol valid for all European countries so the method will guarantee its usefulness.
The administration could bill bad practices if the building energy certification control has failed in comparison with the certification results. This is a guaranty for the technician independence.
What are the key ideas?
Quality work, user friendly but reliable
Economically competitive around the optimization Energy saving must be a condition
Control of the certification assures its accuracy
Another conclusion is that we can´t sacrifice a quality work in the building’s energy performance to be economically competitive, the aim we should never forget is that it is necessary to save energy and lower carbon dioxide emissions. We have a useful tool to achieve this aim: “EPBD control”.
The absence of a good protocol for the public buildings may drive the European countries to lose part of the efficiency in all the EPBD implementation process. If we intend to save energy and lower the carbon dioxide emissions, we have to be very straight with the proceedings.
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- 512 - other European countries. The main consequence for the public sector is that it is obliged to out
of that commercial war to be the best example of the EPDB [6] implementation.
4. REFERENCES
[1]. E. Dascalaki, K. Droutsa, A. Gaglia, S. Kontoyiannidis y C. Balaras, «Data collection and analysis of the building stock and energy performance - an example of Hellenic Buildings,» Energy and Buildings, nº 42, pp. 1231-1237, 2010.
[2]. B. Poel, G. Van Cruchten y G. Balaras, «Energy performance assesment of existing buildings,» Energy and Buildings, nº 39, pp. 393-403, 2007.
[3]. R. Bull, N. Chang y P. Fleming, «The use of building certificates to reduce energy consumption in European public buildings,» Energy and Buildings, nº 50, pp. 1103-110, 2012.
[4]. L. Santolli, F. Fraticelli, F. Fornari y C. Calice, «Energy performance assessment and retrofit strategies in public school buildings in Rome,» Energy and Buildings, nº 68, pp. 196 - 202, 2013.
[5]. A. Eleonora, F. Rizzi y M. Frey, «Enhancing energy efficiency in public buildings:The role of local energy audit programmes,» Energy and Buildings, nº 69, pp. 364-473, 2014.
[6]. European Union, «Energy Performance of Buildings of 19 May 2010,» Offitial Journal of the European Union, pp. L153/13-L153/35, 16 June 2010.
[7]. B. Poel, G. van Crutchten y C. A. Balaras, «Energy performance assessment of existing dwellings,» Energy and Buildings, nº 39, pp. 393-403, 2007.
[8]. C. Balaras, A. Gaglia, E. Georgopoulou, S. Mirasgedis, Y. Sarafidis y D. Lalas, «European Residential buildingsand empirical assessment of the hellenic building stock, energy consumption, emissions & potential energy savings,» Building and Environment , nº 42, pp. 1298-1314, 2007.
[9]. EN ISO 13790, Energy performance of buildings ― Calculajon of energy use for space heajng and cooling, 2008.
[10]. Estado Español, «Procedimiento básico oara la certificación energética de los edificios de 5 de abril de 2013,» Boletín Oficial del Estado nº 89, pp. 27548-27562, 13 Abril 2013.
[11]. Estado Español, «Código Técnico de la Edificación de 17 de marzo de 2006,» Boletín Oficial del Estado nº 74, pp. 11816-11831, 28 Marzo 2006.