: Department of Buildings and Energy : Department of Civil Engineering

Transcription

1 Solar energy research at Department of Civil Engineering 1974: Start 1975: Zero Energy House : Thermal Insulation Laboratory : Department of Buildings and Energy : Department of Civil Engineering 1

2 Solar heating group Scientific staff, September 2016 Simon Furbo, associate professor, Ph.D. Jianhua Fan, associate professor, Ph.D. Bengt Perers, senior researcher, Ph.D. Janne Dragsted, senior researcher, Ph.D. Elsa Andersen, senior researcher, Ph.D. - part time Weiqiang Kong, researcher, Ph.D. Mark Dannemand, researcher, Ph.D. Federico Bava, Ph.D. student Gerald Englmair, Ph.D. student Zhiyong Tian, Ph.D. student Junpeng Huang, Ph.D. student Jie Deng, guest researcher, Ph.D. Fabienne Sallaberry, guest researcher, Ph.D. Guofang Yuan, guest researcher, Ph.D. 2

3 Solar heating research goals To carry out research on a high international level To make the research results useable for the solar heating branch To be an attractive partner for solar heating industry and research institutes in connection with research and development Upgrade of test facilities 3

4 Solar heating research AIM: Improvement of performance/cost-ratio HOW: Increased knowledge of thermal conditions and flow behaviour. The knowledge is used for development and optimization RESEARCH: Parallel theoretical and experimental activities numerical models, CFD calculations flow visualization, PIV measurements full scale experiments 4

5 Research financed by Technical University of Denmark Danish Energy Agency EU Private companies Private foundations Danish association for district heating systems Ministry of Science, Technology and Innovation Greenland s government 5

6 Reseach areas Solar radiation Solar domestic hot water, SDHW systems Solar combi systems Solar heating plants Air collectors for dehumidification PV Combined solar heat and electricity production 6

7 Solar radiation: Ongoing research projects IEA-SHC Task 46 Solar Ressource Assessment Operation of climate station Small solar heating systems: Combined solar heating/heat pump systems Polymer inlet stratifier for hot water stores IEA Task 54 Price reduction of solar heating systems Solar heating plants: SHINE Ph.D. study Aluminium solar collectors for Løgumkloster solar heating plant Tårs solar heating plant with concentrating tracking solar collectors and flat plate collectors Seasonal heat storage for solar heating plants. Water pit storage in Gram, Marstal and Dronninglund and borehole storage in Brædstrup Improvement of IEA Task 55 Large scale solar district heating and cooling systems CSP solar collector field with biomass heat and power plant and ORC system in Brønderslev Development of combined CPC/flat plate collector for solar heating plants Compact seasonal heat storage: Research and development on compact seasonal heat storage Sino/Danish Ph.D. study H.M. Heizkörper Other companies Solar energy systems for combined heat and electricity production: PVT-systems PVT modules Air collectors: Development of air collector for dehumidification Solar energy in the energy system: IEA Task 52 Solar Thermal & Energy economics in urban environments Danish/Chinese cooperation: Sino Danish Center, educational activities in China Simulation programs for solar heating 7

8 IEA Task 46 Solar Ressource Assessment Measurements of diffuse radiation from different parts of the sky New solar radiation models Cooperation with DMI 1100 kwh/m² year 1050 kwh/m² year 1000 kwh/m² year 8

9 IEA Task 46 Solar Ressource Assessment Solar radiation in solar collector field 9

10 Operation of the climate station DTU Byg, building 119 Latitude: 55.8 N Longitude: 12.5 E Homepages DTU Climate Station Data: DMI: Documentation DTU Byg Civil Engineering report, SR Upgrade and Extension of the Climate station at DTU Byg 10

11 Experimental and theoretical investigations of combined solar heating/heat pump systems for one family houses Test of a system in laboratory test facility for solar heating systems Development and validation of detailed TRNSYS simulation model Optimization of systems for different one family houses 11

12 Inlet stratifier for water stores Development of polymer inlet stratifier Documentation of durability of inlet stratifier in domestic water with lime Side-by-side tests of two SDHW systems Cooperation with EyeCular Technologies, 12

13 IEA Task 54 Price reduction of solar heating systems Drain back systems Low flow systems SDHW systems Solar combi systems Standard components Prefabrication Easy to install systems 13

14 IEA Task 54 Price reduction of solar heating systems CFD calculations of tank in tank heat storage for SDHW systems with plastic tank outside Outer tank: 206 L Φ520 mm plastic cylinder Inlet pipe Φ400 mm (cylinder) steel DHW tank Inner tank: 116 L 3 mm plain steel 4 cm PUR insulation -- Polymer tank from Outlet pipe 14

15 Φ30 mm 1 h 2 h 3 h 4 h 15

16 SHINE Ph.D. study on solar collector fields for solar heating plants, cooperation with ARCON-SUNMARK A/S, Coordinator of EU s Ph.D. courses on solar heating,

17 Aluminium solar collectors for Løgumkloster solar heating plant Tårs solar heating plant with concentrating tracking solar collectors and flat plate collectors Improvement of IEA Task 55 Large scale solar district heating and cooling systems Planning and analyse of measurements for solar heating plants Cooperation with Aalborg CSP A/S, ARCON-SUNMARK A/S, PlanEnergi and others 17

18 CSP collector field with biomass heat and power plant and ORC system in Brønderslev Development of CPC/flat plate solar collectors for solar heating plants. Cooperation with PolyCSP 18

19 Seasonal heat storage for solar heating plants. Water pit storage in Gram, Marstal and Dronninglund and borehole storage in Brædstrup Brædstrup seasonal heat storage m 3 borehole storage Cooperation with PlanEnergi and others Water pond No insulation against earth! Marstal seasonal heat storage m 3 water pond Dronninglund seasonal heat storage m 3 water pond 19

20 Compact seasonal heat storage Aim To develop a compact seasonal heat storage based on a salt hydrate with a stable supercooling The heat storage can be used as a part of a solar heating system which can fully cover the yearly heat demand of new buildings in Denmark Cooperation with Sino/Danish Ph.D. study H.M. Heizkörper, Germany and other companies Hopes The investigations will demonstrate that seasonal heat storage is possible The investigations will result in recommendations for design of solar heating systems with seasonal heat storage Seasonal heat storage will be economically attractive 20

21 Solar energy systems for heat and electricity production PVT demonstration system. Cooperation with Racell SAPHIRE Technologies ApS and COWI A/S 21

22 PVT module for electricity, heating and cooling Development of PVT module. Cooperation with Racell SAPHIRE Technologies ApS and COWI A/S 22

23 Development of air collector for dehumidification Cooperation with SolarVenti 23

24 IEA Task 52 Solar Thermal & Energy economics in urban environments Solar energy systems in the future energy system Centralized solar heating systems Decentralized solar heating systems Cooperation with AAU og PlanEnergi Wind energy: 2015: 42% of electricity consumption % of increased electricity consumption Solar heating: 2030: 15% of reduced heat demand 2050: 40% of reduced heat demand - 80% district heating 24

25 Danish/Chinese cooperation: SDC - Sino Danish Center Beijing Computing Center Organize workshops/education on solar energy for Chinese university students Cooperation with Chinese research institutes and universities on solar heating Further development of simulation programs within solar heating: VEKSLER, SPIRALSOL, MANTLSIM 25

26 26 Ph.D. study started 2014 Federico Bava: Solar collector fields Cooperation with ARCON-SUNMARK A/S

27 Ph.D. study started 2015 Gerald Englmair: Compact seasonal heat storage based on a salt hydrate Cooperation with Chinese university, CAS IEE 27

28 28 Ph.D. study started 2015 Zhiyong Tian: Solar heating plants with flat plate collectors and concentrating tracking collectors

29 Ph.D. study started 2016 Junpeng Huang: Application of solar district heating systems in urban buildings Cooperation with Tongji University and Beijing MICOE Solar Technologie Group Co., Ltd., China Focus on design of Chinese solar heating plants Business models for solar hetaing plants in Denmark and China 29

30 Ph.D. studies finished 2007 Elsa Andersen: Solar combi systems Fabric stratifier Development of solar heating/natural gas unit in cooperation with METRO THERM A/S Alexander Thür: Competitive solar heating systems for residential buildings 30

31 Ph.D. study finished 2010 Eshagh Yazdanshenas: Advanced solar combi systems Auxiliary energy supply Hot water Solar collector Radiator Cold water 31

32 Ph.D. study finished 2011 Janne Dragsted: Solar heating in Greenland Snow No snow Sne Jord Jord Solar radiation and albedo Solar heating systems 32

33 Ph.D. study finished 2016 Mark Dannemand: Compact seasonal heat storage based on a salt hydrate 33

34 Reports from: Thermal Insulation Laboratory Department of Buildings and Energy Department of Civil Engineering All from: 34

35 13405 m² solar heating plant in Jægerspris 35

36 Denmark in front on solar heating plants Solar heating plants - status in Europe by end of solar heating plants > 500 m². 71 in Denmark, 30% 1,063,791 m² in operation. 823,838 m² in Denmark, 77%! 36