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					Thermal Energy Storage in Urban Areas


Dipl.-Ing. Thomas Pauschinger

2nd International DHC+ Research Conference
5-6 November 2013, Brussels




Steinbeis
Research Institute
for Solar and
Sustainable
Thermal Energy
Systems


Meitnerstr.
Meitnerstr 8
D-70563 Stuttgart
www.solites.de
Solites Steinbeis Research I tit t for Solar and S t i bl
S lit - St i b i R       h Institute f S l     d Sustainable
Thermal Energy Systems

Member of the Steinbeis Foundation:
• turnover in 2012 over 140 Mio Euro
• technology transfer, consultancy and research

•   Concept- and project development of sustainable energy supply systems
    (heat, cold and electricity, high reduction of CO2-emissions)
•   Comprehensive energy concepts for buildings
    (adjustment of architectural concept, thermal insulation, building services and RES)
•   Advisor to different ministries and international organisations
    IEA/ OECD, EU, GER)
    (R&D for large scale solar thermal systems, STES and RES)
•   Surveyor for large scale solar thermal systems with STES
•                            p     group                       gy      g
    Chairman of the German experts g p on seasonal thermal energy Storage
•   Member of several international experts groups
    (R&D for large scale solar thermal systems, STES and RES)
    (           g                       y                   )


               Steinbeis Research Institute
               for Solar and Sustainable
               Thermal Energy Systems
               www.solites.de
Background of scientific R D
B k      d f i tifi R+D

•           2003: S l th
    1992 – 2003                 i 2000 Part
                     Solarthermie-2000 – P t 3
     part 3: Central Solar Heating Plants with Seasonal Storage (CSHPSS)
     • Development of seasonal storage concepts
     • Realisation of eight pilot plants

•   2004 - 2008:    Solarthermie2000plus
                 p                           gy      g (     )
     one central point: Seasonal Thermal Energy Storage (STES) for:
     • solar
     • waste heat
     • cooling
     • combined heating & cooling
     • CHP, biomass
     • etc.

•   Since 2009:              p g                          y               g
                         R+D programme for solar thermal systems and storages

 Fundamental: Funding of ca. 50 % of investment costs for solar system
            Steinbeis Research Institute
            for Solar and Sustainable
            Thermal Energy Systems
            www.solites.de
System concept of a central solar heating plant with seasonal storage
S t          t f       t l l h ti          l t ith          l t

 a get so a act o o tota eat de a d
Target: solar fraction of total heat demand: 50 %

                           Solar collectors


Central heating
plant




                                                  District heating Solar
                                                  network          network
                                       Seasonal
                                                   gy      g
                                       thermal energy storage
                                       (STES)
                                       (     )
            Steinbeis Research Institute
            for Solar and Sustainable
            Thermal Energy Systems
            www.solites.de
       in Hamburg, 1996
CSHPSS i H b




        Steinbeis Research Institute
        for Solar and Sustainable
        Thermal Energy Systems
        www.solites.de
Seasonal th
S              l         t               typology
       l thermal energy storage (STES) - t   l




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
The il t l t from th programs S l th
Th pilot plants f the                   i 2000 2000plus
                              Solarthermie-2000 / 2000 l

                               Hamburg (
                                     g (1996)
                                            )   Friedrichshafen
                                                (1996)
                               3.000 m² FPC      4.050 m² FPC
                               4.500 m³         12.000 ³
                                                12 000 m³
                                                Tank
                               Tank

                               Neckarsulm       Steinfurt (1998)
                               (1997)           510 m² FPC
                               5 300 m² FPC
                               5.300 m          1 500 m³
                                                1.500 ³
                                      m
                               63.300 m³        Pit
                               BTES


                               R t k (2000)
                               Rostock          Hannover
                                                Hanno er (2000)


                               1.000
                               1 000 m² FPC           m
                                                1.350 m² FPC
                               20.000 m³
                               20 000 m         2.750 m³
                               ATES             Tank



         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
The il t l t from th programs S l th
Th pilot plants f the                   i 2000 2000plus
                              Solarthermie-2000 / 2000 l

                               Chemnitz, 1st CS
                                        ,          Attenkirchen (2002)
                                                                (    )
                               (2000)
                                                   800 m² FPC
                               540 m² VTC                9.350 m
                                                   500 + 9 350 m³
                               8.000 m³            Tank + BTES
                               Pit


                               Munich (2007)
                                      (    )       Crailsheim (2008)


                               2.900 m² FPC        5.300 m² FPC
                               5.700 m³                  ³       ³
                                                   100 m³ + 480 m³
                               T k
                               Tank                Buffer Tanks
                                                   37.500 m³ BTES

                               Eggenstein (2008)

                               1.600 ²
                               1 600 m² FPC
                               4.500
                               4 500 m³
                               Pit


         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
The       in Munich: installation f l  ll t
Th CSHPSS i M i h i t ll ti of solar collectors, 2007




Start of operation: 2007
   800     eated area (2.300   /a)
24.800 m² heated a ea ( 300 MWh/a)
2 900 m² solar collectors
2.900
5.700 m³ tank
                   %
Solar fraction: 47 %*
 simulation
*simulation results ZAE



                 Steinbeis Research Institute
                 for Solar and Sustainable
                 Thermal Energy Systems
                 www.solites.de
Site l
Sit plan
                                                        l     ll t        buildings
                                                      solar collectors on b ildi

                     g
              buildings without
              solar collectors




   thermal
   th     l
   energy
   storage




      t l
  central
                                                                        heat transfer substations
  heating
                                                                        in buildings
    plant
                                      solar network   local heat distribution network

                Steinbeis Research Institute
                for Solar and Sustainable
                Thermal Energy Systems
                www.solites.de
Munich: Realization f tank thermal energy storage 2006
M i h R li ti of t k th          l         t




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Munich: Realization f tank thermal energy storage 2006
M i h R li ti of t k th          l         t




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Munich: Realization f tank thermal energy storage 2006
M i h R li ti of t k th          l         t




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Munich: Realization f tank thermal energy storage 2006
M i h R li ti of t k th          l         t




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Munich: Realization f tank thermal energy storage 2006
M i h R li ti of t k th          l         t




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Munich: Realization f tank thermal energy storage 2006
M i h R li ti of t k th          l         t




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
The il t l t ith           l t       in Crailsheim
Th pilot plant with seasonal storage i C il h i




•   service area:          260 apart., school, gym.   •   buffer storage:   100 + 480 m³ (water tank)
•   heat demand:           4 100 MWh/year             •   STES:             37 500 m³ (BTES)
•     l     ll
    solar collectors:             ² (aperture)
                           7 300 m² (         )       •    l heat pump:
                                                          el. h              30
                                                                            530 kW
•     l heat
    solar h t cost:t       19 E
                              Euro-Cent/kWh
                                   C t/kWh            •      l fraction:
                                                          solar f ti             (design)
                                                                            50 % (d i )


                 Steinbeis Research Institute
                 for Solar and Sustainable
                 Thermal Energy Systems
                 www.solites.de
       Crailsheim: ti l     ti    f
CSHPSS C il h i vertical section of BTES




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
     i Crailsheim, 37.500 ³
BTES in C il h i 37 500 m³, 2007




        Steinbeis Research Institute
        for Solar and Sustainable
        Thermal Energy Systems
        www.solites.de
     i Crailsheim, 37.500 ³
BTES in C il h i 37 500 m³, 2007




        Steinbeis Research Institute
        for Solar and Sustainable
        Thermal Energy Systems
        www.solites.de
Investment cost of seasonal thermal energy storages
I    t   t    t f         l th    l         t




          Steinbeis Research Institute
          for Solar and Sustainable
          Thermal Energy Systems
          www.solites.de
Outlook: R&D t  t for
O tl k R&D-targets f STES

•   M t i l and wall constructions f combined th
    Materials d      ll   t ti     for             l d             t
                                        bi d thermal and pressure stress
              ater
    (>100 °C water / steam)
•   Two fields of developments:
     •      g             g
         Large scale storages above 1.000 m³
     •                                       m³.
         Buffer storages between 100 und 500 m³
•   Improved reliability of storages
•                     y (heat sources, long-term / short-term etc.)
    Multi-functionality (                 g                       )
•   Optimisation on total system level
•   Comprehensive d i and realisation process
    C     h   i design d     li ti


Target 2020:         The first technologies of seasonal thermal energy storage for
                     high solar fractions and excess heat storage
                     are ready for the market.




               Steinbeis Research Institute
               for Solar and Sustainable
               Thermal Energy Systems
               www.solites.de
Multifunctional h t storage i H b
M ltif   ti   l heat t                 Bramfeld, 2010
                            in Hamburg B   f ld




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Multifunctional h t storage i H b
M ltif   ti   l heat t                 Bramfeld, 2010
                            in Hamburg B   f ld




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
Multifunctional h t storage in H b
M ltif   ti   l heat t                Bramfeld, 2010
                            i Hamburg B   f ld




         Steinbeis Research Institute
         for Solar and Sustainable
         Thermal Energy Systems
         www.solites.de
 SDH Solar District Heating in Europe‘
‚SDH - S l Di t i t H ti i E         ‘

Project b it
P j t website:                           l di t i t h ti
                                   www.solar-district-heating.eu

Coordinator:                       Solites
                                   Steinbeis Research Institute
                                   for Solar and Sustainable
                                   Thermal Energy Systems
                                     p      g                   g
                                   Dipl.- Ing. Thomas Pauschinger
                                   pauschinger@solites.de
                                   p          g @

In cooperation with: AGFW
                             g                            ,
                     Der Energieeffizienzverband für Wärme, Kälte und KWK

Supported by:

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E         C        iti    The European C  Commission i not responsible f any use th t may b made of th i f
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                      Steinbeis Research Institute
                      for Solar and Sustainable
                      Thermal Energy Systems
                      www.solites.de

				
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posted:11/25/2013
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