Potential, market and practical experience with solar process heat in Germany

Transcription

1 Potential, market and practical experience with solar process heat in Germany Dr.-Ing. (ITW) Solar- und Wärmetechnik Stuttgart (SWT) University of Stuttgart Pfaffenwaldring 6, Stuttgart, Germany Internet: \WESD_SHIP_HD2.PPT

2 SHIP Soure: ESTIF Potential Study, Werner Weiss et. al 123

3 energy usage for process heat Process heat usage in Germany refining non-ferrous metals paper, cellulose capital equipment low temperature middle temperature stone and bricks foundry glass and ceramics food industry iron and steel chemical industry textile industry others high temperature 124 process temperature

4 Solar Heat for Industrial Processes (SHIP) Source: Schmitt, Uni Kassel IEA SHC Task

5 Solar Heat for Industrial Processes (SHIP) => heat recovery? 1 TWh/a 2-3 Mio m 2 solar collector area Source:Schmitt, Uni Kassel 126

6 German Solar Thermal Market collector area for SHIP approx m 2 Quelle: BSW-Solar Gerhard Stryi-Hipp 127

7 Practical Experience - Build examples Steinbach & Vollmann Production of locks, locking systems, fittings and hinges Solar heating system: ETC, 400 m² 5 solar buffer tanks (1.5 m³ each) Solar energy is mainly used to increase return temperature of heater for electro plating (70 C) Additionally hot water generation and space heating are supplied with energy Source:Schmitt, Uni Kassel 128

8 Practical Experience - Build examples Paint Shop Schulte Painting of car body parts (300 MWh/a) 137 m² evacuated tube collectors Heating of painting chamber 24 C, m³/h Heating of drying chamber 70 C, m³/h Estimates: 30 % savings, 7..9 years payback time Source:Schmitt, Uni Kassel 129

9 Practical Experience - Build examples 108 m² of Parabolic trough collectors Production of saturated steam Alanod Factory consumer: steam line of 4 bar, 143 C Source Photo: Karim Said, Solitem 130

10 Practical Experience - Build examples 8,000 m³ beer per year Hofmühl Brewery 735 m² CPC ETC, two 55 m³ buffer stores Water system with active freezing protection Source: B. Schmitt Uni Kassel 131

11 Practical Experience - Build examples Hütt Brewery 6,000 m³ beer/a Installation of new boiling technology Optimization of heat recovery Solar heating system m² flat plate collectors - 10 m³ solar buffer tank - Preheating of brewing water Source: B. Schmitt Planning/Realization: FSAVE Solartechnik & ThüSolar Uni Kassel 132

12 The Goal 1000 litres of beer brewed by using 100 % solar 133

13 The Goal: 1000 litres of beer brewed by using 100 % solar + = Source: Stefan Abrecht 442 m 2 barley 0,7 m 2 collectors (50%) 107 m 2 rapeseed (50%) litres beer raw material Energy Fun 134

14 Status Summary & Outlook solar heat for industrial process (SHIP) has a huge technical potential (several 100 GW th ) several plants already exist, but all individually planned appropriate system technology and collectors (mid temperature range) in principle available Implementation of SHIP should be combined with energy saving measures Future strategy - two track approach ==> intensified implementation and R&D 135

15 Implementation Summary & Outlook (1/2) Awareness raising at industry - green products / production - more stable boundary conditions / financial security - Ecodesign / EUP directive (EUP Energy Using Products) Training and know-how transfer for planners, installers, operators Financial support measures required e.g. contracting models, incentives, subsidies 136

16 Summary & Outlook (2/2) Research and Development Mid- and high-temperature (> 100 C) components (collectors, stores, system technology) Integration concepts of solar thermal systems into existing heat supply and consumption systems (e.g. steam systems, high pressure hot water systems) Advanced control and operation strategies (e.g. to avoid or handle stagnation) Increase in efficiency and cost reduction 137

17 To get a break-through European Solar Process Heat Initiative Thanks for your attention!!! 138