www.itw.uni-stuttgart.de Potential, market and practical experience with solar process heat in Germany Dr.-Ing. (ITW) Solar- und Wärmetechnik Stuttgart (SWT) University of Stuttgart Pfaffenwaldring 6, 70550 Stuttgart, Germany Email: drueck@itw.uni-stuttgart.de Internet: www.itw.uni-stuttgart.de 122 2011\WESD_SHIP_HD2.PPT
SHIP Soure: ESTIF Potential Study, Werner Weiss et. al 123
www.itw.uni-stuttgart.de 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
Solar Heat for Industrial Processes (SHIP) Source: Schmitt, Uni Kassel IEA SHC Task 33 125
Solar Heat for Industrial Processes (SHIP) => heat recovery? 1 TWh/a 2-3 Mio m 2 solar collector area Source:Schmitt, Uni Kassel 126
www.itw.uni-stuttgart.de German Solar Thermal Market collector area for SHIP approx. 10.000-20.000 m 2 Quelle: BSW-Solar Gerhard Stryi-Hipp 127
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
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, 22.300 m³/h Heating of drying chamber 70 C, 1.200 m³/h Estimates: 30 % savings, 7..9 years payback time Source:Schmitt, Uni Kassel 129
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
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
Practical Experience - Build examples Hütt Brewery 6,000 m³ beer/a Installation of new boiling technology Optimization of heat recovery Solar heating system - 150 m² flat plate collectors - 10 m³ solar buffer tank - Preheating of brewing water Source: B. Schmitt Planning/Realization: FSAVE Solartechnik & ThüSolar Uni Kassel 132
The Goal 1000 litres of beer brewed by using 100 % solar 133
www.itw.uni-stuttgart.de 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%) 1.000 litres beer raw material Energy Fun 134
www.itw.uni-stuttgart.de 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
www.itw.uni-stuttgart.de 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
www.itw.uni-stuttgart.de 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
www.itw.uni-stuttgart.de To get a break-through European Solar Process Heat Initiative Thanks for your attention!!! 138