1. Some aspects of energy efficiency and energy conservation in buildings Dorota Chwieduk Department of Eco-Building Engineering Institute of Fundamental Technological Research Polish Academy of Sciences 00-049 Warszawa ul.Swiętokrzyska 21

2. Energy efficiency and energy conservation in buildings Energy consumption in the residential and tertiary sectors is especially high in developed countries. There is a great potential for energy savings in these sectors THE GENERAL FUNDAMENTAL RULE: to introduce energy efficiency technologies first then to introduce modern options for energy conservation, i.e.: new innovative technologies, including utilization of renewable energy, to reduce total energy consumption sufficiently.

3. TRADITIONAL OPTIONS OF ENERGY CONSERVATION IN BUILDINGS To reduce the heat demand for heating purposes: Improvement of a building envelope (including basement) To reduce the use of heat supplied to the housing units : Modernisation of thermal centres: automation, installation of heat meters Modernisation of heat distribution Introduction of individual heat meters Modernisation of ventilation system To reduce the use of fuels for heat production by modernisation of: Thermal power stations and large thermal systems Local thermal systems and boilers Individual heat sources; which is usually done by switching from coal to gas

4. MODERN OPTIONS FOR ENERGY CONSERVATION IN BUILDINGS Introduction (or modernisation) of a design of the building with focus on the building envelope Utilisation of renewable energy Utilisation of waste energy Application of new methods of heat storage and heat recovery Reduction of waste energy and waste materials

5. Department of Eco-Building Engineering Institute of Fundamental Technological Research The Department deals with: building optimization, modeling of structures and environment, environmental acoustics, utilsation of renewable energy with stress on solar energy.

6. Department of Eco-Building Engineering Institute of Fundamental Technological Research Heat and mass transfer processes in buildings and composed media. Mutual interactions between environment and buildings - its influence on thermal comfort and energy consumption saving. Optimization of the building shape and structure and their elements, optimization of heat source utilisation in building sector. Thermovision analysis of building envelope. Solar energy devices and energy storage systems in buildings. Phase change for energy storage and transfer. Underground heat storage. Noise propagation in built-up areas. Noise generation in piping systems, acoustic in rooms of complex shape Composites with brittle matrix. Cement based materials.

7. Department of Eco-Building Engineering Energy efficiency and energy conservation in buildings Energy Conversion Energy Systems in Buildings Energy Technology Energy Transfer and Accumulation Renewable Energy Sources Active and passive energy systems

8. EUROPEAN PROJECT EXPERIENCE Department of Eco-Building Engineering Brundtland City Energy Network Solar Schools– Brighter Future European Sustainable Energy Education Forum Solid Sorption system for cooling in tri-generation – SOCOOL Coordination Actions for Multi-generated Energy systems with Locally Integrated Applications – CAMELIA

9. Hot Water Storage AC Electric Grid Natural Gas Supply Kitchen Hot Water Boiler ‘SOCOOL’ TRIGENERATION SYSTEM Kitchen AC Power Restaurant Heating / Air-Conditioning System H2OH2O 50  C - 60  C Exhaust Gas Cooled/Heated H 2 O Solid Sorption Machine 6 kW cooling 16 kW heating 190  C Oil 95  C H 2 O Solid Sorption Machine 6 kW cooling 16 kW heating Exhaust Gas Heat Exchanger 210  C Oil 85  C H 2 O Cooled/Heated H 2 O Cogeneration Unit, 20 kWe, 44 kW thermal Tri-generation in the tertiary sector: Market potential Technical solutions Demonstration project

10. Coordination Actions or Multi-generated Energy systems with Locally Integrated Applications CAMELIA Coordination Actions CAMELIA are addressing more specifically the topics of : RES electricity Medium and low temperature RES heating and cooling Polygeneration Coordination Actions CAMELIA are done in a view to complement the future Integrated Project Integrated Multigeneration Buildings Energy Systems Technology

11. Energy efficiency and energy conservation in buildings Technical University of Łódź, Division of Building Physics and Building Materials Wind environment in urban structures the optimal arrangement of buildings acoustic climate in urbanised zones and in open areas Sound protection in industry Technical University of Warsaw, The Institute of Heating and Ventilation heating and district heating ventilation and air-conditioning Technical University of Lublin Institute of Electrical Engineering & E lectrotechnologies application of PV integrated systems

12. Energy efficiency and energy conservation in buildings Technical University of Cracow Institute of Building Materials & Structures building and engineering structures, elements and materials durability and anticorrosion protection of buildings new technologies as applied to building and engineering structures; strengthening and reconstruction of structures problems of modern building engineering and industrial construction with regard to environmental effects. Technical University of Warsaw, Institute of Micro and Optoelectronics Network Energy in the Built Environment Improved Building Integration of PV by using Thin Film Modules in CIS Technology

13. Energy efficiency and energy conservation in buildings Baltic Energy Conservation Agency Energy Auditing of residential, industrial and tertiary buildings, heat plants and networks Utisation of renewables Supporting thermalmodernisation National Energy Conservation Agency Energy Auditing of residential and tertiary buildings Utisation of renewables Supporting thermalmodernisation Green Building - accelerating the development towards sustainable urban housing new technologies and latest best technologies