Kastrinogiannis (Crete)
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- 1. Built example
A solar system has been built to increase the energy efficiency of the process.
- 2. Industry Sector
Textile industry; 50 employees
- 3. Industrial application
Heating water for textile dyeing
- 4. Process description
- Process flowsheet:
No information is available.
- Processes:
The hot water from the solar collectors heats the water in two open 5000-litre solar storage tanks through a closed loop (via a heat exchanger). The hot water leaving the solar storage tanks is either a) fed directly to factory floor or b) used to pre-heat the water entering the steam boiler. The auxiliary heating required depends on the process and the temperature of hot water required by the particular process (maximum: 900C)
Backup heating:
- a) 1 steam generator (13 hp) – Heavy oil
- b) 1 steam boiler (6 hp) – Heavy oil
Maintenance requirements:
Solar storage tanks were insulated due to large heat losses during the initial operation of the system.
- 5. Energy flows and temperature ranges
- Main heat supply system and fuel:
No information is available.
- Energy consumption (Sankey):
No information is available.
- Temperature ranges and other parameters:
Process hot water requirements of Kastrinogiannis S.A
Factory operation hours : 0800 –1500 daily, closed on weekends
Water consumption : a) Process water: 15,350 litres/day
Temperature of process water : a) 40 – 90 0C
- 6. Solar Thermal Plant
- Used scheme:
No information is available.
- Description of the main features and components:
Supplier : FOCO S.A Year of installation
1993 Area of Collectors
180 m2 Tilt
400 due South Hydraulic circuit
Closed-loop water-ethylene glycol Volume of solar storage tank
2 x 5000 litres (in parallel)
- Pictures of the built solar system:
No pictures available.
- 7. Energy savings
- Pinch analysis results:
No information is available.
- Energy savings:
Significant energy savings for textile dyeing process.
- 8. Economic evaluation
- Economic parameters of the built solar system:
Financing technique: 50 % public subsidy, no TPF/GSR contract
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