HELSINKI UNIVERSITY OF TECHNOLOGY Lighting Laboratory FINLAND

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1 HELSINKI UNIVERSITY OF TECHNOLOGY Lighting Laboratory FINLAND Projects in HUT/Finland related to the scope of the Annex Eino Tetri D.Sc. (Tech.)

2 Liisa Halonen (Dr) Jouko Pakanen (Dr) Markku Virtanen (Dr) Professor Professor Docent Laboratory staff Eino Tetri (Dr) Research Scientist Pramod Bhusal (M.Sc.) Marjukka Eloholma (M.Sc.) Viorel Gligor (Lic.Sc.) Liping Guo (M.Sc.) Jaakko Ketomäki (M.Sc.) Esa Kurhinen (B.Sc.) Jorma Lehtovaara (M.Sc.) Meri Liesiö (M.Sc.) Oskari Moisio (M.Sc.) Pasi Orreveteläinen (Lic.Sc.) Petteri Palmi (M.Sc.) Paulo Pinho (M.Sc.) Tapani Timonen (M.Sc.) Eino Helin Jouko Manninen Leena Väisänen Laboratory Supervisor Teaching Assistant Laboratory Secretary Mikko Hyvärinen Research Assistant Aleksandr Ekrias Mitja Kolbe

3 The research areas of Lighting Laboratory Indoor Lighting Office lighting systems Artificial lighting and daylighting controls Lighting and productivity Daylighting systems Visual performance Daylighting glare measurement User perspectives and requirements Lighting measurements Light Sources and Energy Characteristics of lamps and ballasts The effect of dimming and cathode heating on lamp life Dimming according to daylight The use of LEDs in lighting The electricity use of lighting Traffic Lighting and Vision Road and street lighting Vision at low light levels Spectral sensitivity in the mesopic range Visibility of flashing lights Signal lighting Road and street lighting measurements Measuring and Testing Motor vehicle and other road traffic lamps and retro-reflectors Aeronautical and maritime lighting devices Spectrum and colour measurements Photometric calibrations Outdoor and indoor lighting measurements

4 Modular LED-PLC Lighting System Helsinki University of Technology Lighting Laboratory Communications Laboratory Applied Electronics Laboratory CUBE Building Services Technology Programme TEKES The National Technology Agency 9 Companies

5 Modular LED-PLC Lighting system The use of LEDs in general lighting High-efficiency LED luminaire in which the luminous flux, colour properties and the distribution of luminous intensity is adjustable Demonstration prototype of LEDluminaire controlled by PLCsystem

6 RET - Energy performance of buildings Lighting (TC169new WI) People Equipment Etc. Internal loads ENISO 6946 ENISO13789 ENIS Etc. Infiltration (TC156) Building properties ENISO 7730 Outside Temp. CR 1752 Sunshine. PrEN13779 Humidity Temperature Etc. Humidity National data Ventilation Indoor Climate Climatic requirements conditions Calculation of Building Energy Demand for Heating and Cooling. (simplified) Revised EN ISO (TC89WG4) Ventilation Domestic Hot Building cooling system Building heating Water energy energy demand, TC156. to be energy demand, demand, included in heating-cooling systems? pren TC228WG4- TC156WG7- Lighting New WI WI-058? pren14335-x Electrical energy: Concept as pren14335-y Concept as pren14335 Etc. pren14335 Primary energy Incl..IBA Incl. IBA Implementation of the Energy performance of buildings directive (2002/91/EC) The aim is to improve the energy-efficiency of the buildings by defining the indicators for energyefficiency and by developing the calculations methods System: Heating energy: Auxiliary energy: Primary energy System: DHW energy: Auxiliary energy: Primary energy System: Cooling energy: Auxiliary energy: Primary energy Total primary energy and conversion to CO 2 emission

7 LED-based lighting system for plant illumination Energy savings Potentially efficient devices Only the required spectrum is given Optical characteristics can reduce light waste Versatility of operation and control Pulsed operation Fully compactible with a computerized management of the greenhouse Arbitrary units chl a chl b Beta-carotene 445 nm LED Beta-carotene HPS lamp 660 nm LED 625 nm LED 730 Phytochrome nm LED (Pfr) Phytochrome (Pfr) Wavelength [nm]

8 Virtual Space 4D Control of Indoor Environment Answer to the question: How to control the indoor environment? Tools space model virtual reality techniques, models, programming and visualization tools data banks, guidelines Utilization of current knowledge of indoor environment in development of products and services

9 ALTECH Advanced lighting technologies and services Main tasks: To study the state of art and problems in lighting technology, system integration and installation To identify the lighting demands of owners, office workers and tenants in office- and company premises with Internet-survey To develop the measuring and testing facilities of lighting control daylighting system, Light Cube. Case studies To study an integrated indirect lighting and HVAC system in office building, user survey also with referee group To carry out system tests in PASSYS-camber and Light Cube

10 New Control and Energy Management Solutions for Buildings Evert,south (lx) :00 7:49 8:40 simulation :30 10:19 11:10 12:00 12:49 13:40 14:30 Time 15:19 16:10 17:00 17:49 18:40 19: e_vert sun_alt blind_angle light_level The objective of the research was to develop control solutions for building services systems and total building energy management methods Demonstrate new solutions in a real building Control of air-conditioning, heating and lighting Integrated control with fuzzy logic of artificial light and daylight

11 Productive Office 2005 Experiments in Light Cube Objectives to study the effect of lighting parameters on office and VDT work to develop test methods to measure visual performance to make user survey in test lightings lighting classification for indoor environment Conclusions no reason to select illuminances lower than 500 lx for VDT work with modern displays over 500 lx for paper work if necessary (individual light needs and visual tasks) combination of indirect and direct lighting is preferred font size and contrast has the biggest effect on visual performance

12 SMart & INTegrated control of building services (SMINT) Aims develop and test methods for smart and adaptive control of space conditions and integrated building systems solutions for new and retrofit buildings study the possibilities of sensor techniques for controlling the space conditions develop smart adaptive user interfaces and control algorithms for controlling indoor environment test the systems/solutions in pilots study the possibilities for new service concepts

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