Sylwia Walczak - PolSCA
Sylwia Walczak - PolSCA
Sylwia Walczak - PolSCA
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EU SUSTAINABLE<br />
ENERGY WEEK<br />
18-22 JUNE 2012<br />
<strong>Sylwia</strong> <strong>Walczak</strong><br />
20 th June 2012<br />
Energy
Photovoltaic panels in textiles<br />
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– design and technical project of<br />
the PV-powered bag<br />
(cooperation with Italy)<br />
2
Photovoltaic panels in textiles<br />
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1. My research area<br />
2. Bioenergy for the Region – Programme for PhD<br />
Students Development – the project task<br />
3. Introduction to textronics<br />
4. The main idea of the solar bag<br />
• Technical assumptions<br />
• Solar bag components<br />
» Photovoltaic panels, battery, battery charge<br />
controller<br />
5. Conclusions and future plans<br />
3
My research area<br />
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• Textronics<br />
• Wearable electronics<br />
• Flexible electronics<br />
• Renewable and alternative energy sources<br />
• Textile sensors -> temperature sensors<br />
Flexible temperature sensors for textronics applications - PhD thesis<br />
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Project task<br />
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• Design:<br />
– Power supply system based on flexible solar cells dedicated to<br />
wearable electronics<br />
• Perform:<br />
http://zielonemigdaly.pl/2010/01/torba-solarna-od-holo<br />
– Textronic product, integrated with flexible solar cells, e.g. solar<br />
bag, solar waistcoat<br />
5
Introduction to textronics<br />
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Textronics = Electronics + Textiles + Metrology<br />
+ Computer Science + Control Engineering<br />
http://www.infineon.com/cms/en/product/index.html<br />
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Introduction to textronics<br />
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Main problems:<br />
• Power supply (renewable energy sources),<br />
• Integration electronics into textiles,<br />
• Data transmission,<br />
• High operational requirements<br />
– resistance to washing, cleaning – water, temperature,<br />
detergents,<br />
– resistance to contraction, extension, mechanical exposure:<br />
abrasion, bending,<br />
– resistance to electrical interferences.<br />
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The solar bag<br />
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Technical project – version 2<br />
Sun<br />
Battery charge<br />
controller<br />
PV<br />
panel<br />
Battery<br />
Portable<br />
device<br />
- Flexible solar cells – Power Film MPT4.8-150<br />
- Battery charge controller – Intersil ISL6291<br />
- Li-Ion battery – Panasonic CGA103550A<br />
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The solar bag - components<br />
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Flexible solar cell<br />
- good electrical parameters, J max , U max , η<br />
- flexible, lightweight<br />
P max = J max · U max; η = (P max /P 0 )·100%<br />
PowerFilm, MPT4.8-150<br />
J max = 100 mA; U max = 4.8 V<br />
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The solar bag - components<br />
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J max = 100 mA; U max = 4.8 V; η~5%;<br />
Parallel<br />
connection<br />
Battery<br />
94 x 75 x 0.2 mm; 1.9 g<br />
Charge controller<br />
Flexible solar cells<br />
J max = 400 mA; U max = 4.8 V<br />
P max = 1.92 mW<br />
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The solar bag - components<br />
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Conducted tests<br />
- Resistance to:<br />
» Abrasion<br />
» Bending<br />
» Sewing<br />
according to PL standards<br />
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The solar bag - components<br />
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Battery charge controller<br />
-CC/CV charging<br />
- thermal protection<br />
- I min , I ref<br />
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The solar bag - components<br />
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Li-Ion battery<br />
- Low discharging – 8-10%/month<br />
- High durability – 1,000 cycles<br />
- High energy density – 150 Wh/kg<br />
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The solar bag<br />
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Price<br />
[€]<br />
Solar<br />
cells<br />
Production cost<br />
Battery<br />
charge<br />
controller<br />
Battery Adapters Bag<br />
70 5 5 10 15<br />
Total<br />
cost ~100 €<br />
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Conclusions<br />
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1. To find cheaper solar cells<br />
2. To find solar cells with higher efficiency<br />
3. Application of electroconductive fibers<br />
4. To find flexible batteries<br />
5. To integrate flexible solar charger to other<br />
textile products<br />
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Conclusions - achievements<br />
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1. Scientific papers – 12 (scientific journals, conferences, website)<br />
2. Patent applications – 3 (solar bag; bag integrated with solar charger;<br />
flexible Li-Ion battery charge controller)<br />
3. R&D internships – 2 (Textile Research Institute, Ergom Company)<br />
4. Prizes – 5 (Winner of the competitions: TUL Scholarship Fund; Rector’s<br />
scholarship for 15% best PhD Students x2; Dean’s of the Faculty of<br />
Electrical, Electronic, Computer and Control Engineering for financing<br />
research and development activities of Young Scientists x2)<br />
5. Interdisciplinary consulting and coaching (electronics, textiles,<br />
renewable energy sources, patent law, innovation management)<br />
6. International cooperation – Italy (KEO, ENECOM, Environment<br />
Park)<br />
7. Interviews about textronics – (http://www.money.pl/)<br />
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Thank you for<br />
your attention<br />
sylwia.walczak@op.pl<br />
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