UNESCO School on Sustainable Energy in UNESCO Designated Sites - Case Studies

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Case Studies from the WHS of Dubrovnik: Energy Efficiency / Renewable Energy Sources and heritage
1. ST. MARY BLOCK (residential use):
2. Public Library (Public use)

Authors: Andronira Burda, Arlinda Sheqiri, Dragana Mileusnic, Ivan Gakic, Galina Slavova, Melita Lubina,
Naida Taso, Vladimir Kalinski

Published in: Technology, Business
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UNESCO School on Sustainable Energy in UNESCO Designated Sites - Case Studies

  1. 1. CASE STUDY – ST. MARY BLOCK (residential use): Energy Efficiency / Renewable Energy Sources and heritage 04/10/2013 Andronira Burda Arlinda Sheqiri Dragana Mileusnic Ivan Gakic Galina Slavova Melita Lubina Naida Taso Vladimir Kalinski
  2. 2. St. Mary block (residential use)
  3. 3. BASIC CHARACTERISTICS • protected site • located on the South-East side of the historic centre • attached to the City walls • built in 19th century by Austrian government • 56 apartments (half of them currently in use) • stone walls, wooden floors, and roof construction • high ceiling • garden at south side of the complex • AC units • electrical heating
  4. 4. MAPPING of ENERGY EFFICIENCY and RENEWABLE ENERGY SOURCES STRENGTHS WEAKNESSES OPPORTUNITIES THREATS BENEFITS Roof Legislative windows and limitations chimneys Improvement of heating and cooling systems Residents moving out Reduction of energy costs Proximity to sea Archeological remains Interventions in internal space (windows, celing) Faulty installatio n Improved comfort Orientation Construction limitations Lighting appliances Wrong use of installed systems Strengthening community Courtyard Ownershiprelated problems Example of best practices Traditional water system
  5. 5. Proposed solutions for EE and RES • Floor and roof insulation • HVAC systems located in attic (air circulation through existing roof windows): VRF (Variable Refrigerant Flow) or heat pump air/water or biomass heating • Double-glazed windows • Reducing heating volume by suspended ceiling • Efficient lighting appliances
  6. 6. CASE STUDY – Public Library (public use) 04/10/2013 Igor Shesho Ivana Cvetkovic Alma Demirovic Evlampia Vlachou Anastasia Kouki Dragana Petrovic Dusan Markovic Diana Tutica Ozlem Kosker
  7. 7. Public Library • Public Library built in 17th century (originally built as a residential object with commercial facilities in the ground floor and concert hall in the 2nd floor) • Restored in 19th century
  8. 8. The original concert hall now called Saloca od Zrcala is still being used for public events and music concerts.
  9. 9. Restored between 1984-85 after the earthquake in 1979, when the entire interior was rebuilt using reinforced concrete and the new roof construction.
  10. 10. MAPPING of ENERGY EFFICIENCY and RENEWABLE ENERGY SOURCES STRENGTHS WEAKNESSES OPPORTUNITIES THREATS BENEFITS Public use Divided ownership VRF (variable refrigerant flow) in the attic, COP > 4 Poor maintenance and lack of service staff Reduce energy costs Building orientation Thermal comfort (too hot, too cold) Heat recovery ventilation Improved comfort Renovated in 1980’s Detached object – building envelope Unconventional RE systems Strengthening community Surrounding buildings Retrofitting the are too close existing insulation (roof, walls, floors) Policy limitation (façade, no RE systems on the roof) Insufficient budget from the city for maintenance Double glazing with coefficient < 1.5
  11. 11. EE and RE measures • • • • • • • • • Smart lighting system (occupation wise) Zoning (heated / non-heated, thermostat in every room) Alteration of ceilings in offices and service facilities VRF (variable refrigerant flow) in the attic, COP > 4 Heat recovery ventilation – controlled ventilation Unconventional RE systems Retrofitting the existing insulation (roof, walls & floors) Double glazing with coefficient < 1.5 Kinetic energy pavement in the new Port
  12. 12. UNESCO school conclusions • Initial perception of sustainable energy and heritage conservation as conflicting and competing ▫ Established that this does not have to be the case • Significant opportunities exist to create a more sustainable Site ▫ With certain changes to policy and practice, with an emphasis on a WH management plan • It is fundamental to include everyone in the process ▫ Partnership working is key • It will be a long and complex process ▫ So it has to start now, with a structured plan of action • Certain measures are not expensive, with an emphasis on education ▫ Lack of money is not an excuse for inaction.
  13. 13. Thank You for Your attention.

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