Solar Pre-Heating for Textile Dyeing in Hangzhou
Submitted by Baerbel Epp on November 30, 2014
Since 2007 the 13,000 m2 flat plate collector field at High Fashion Ltd in the city of Hangzhou in the Chinese province of Zhejiang pre-heats water to 55 °C. The installation is one of the largest solar process heat systems in China and therefore often presented as a successful case study in speeches at international conferences. The pre-heated water is stored in a tank, and then heated to around 100 °C to produce steam for the dyeing of garment. The total investment for the plant was Renminbib (RMB) 14.5 million (around EUR 1.9 million), the estimated pay-back time was 3 to 4 years according to the Chinese Solar Thermal Industry Federation (CSTIF). National ministries supported the environmental action of High Fashion with a funding of 50 RMB/m2 (6.5 EUR/m2).
Photo: CSTIF / Sun & Wind Energy
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Name of Project / installation |
High Fashion Ltd, Hangzhou (200 km south-west of Shanghai) |
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Country |
China |
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Start of operation |
September 2007 |
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Application |
Solar process heat |
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Cross collector field size |
13,000 m2 flat plate collectors / 9 MWth |
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Storage size |
900 m3 |
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Supplied process |
Pre-heating of water for textile dyeing |
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Predicted specific solar yield |
44 litres/m2*day |
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Predicted solar share in process |
21.7 % |
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Customer |
High Fashion Ltd., Chinese textile company |
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Planning / construction |
Qier Solar Technology Co.Ltd, China |
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Collector manufacturer |
Qier Solar Technology Co.Ltd, China |
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Contact |
Mr Su, General Manage of Qier Solar Technology Co.Ltd, China, Phone 0086- 755-28119950 |
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More information |