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Techno-Economic Analysis of Solar Water Heating Systems inTurkey
Can Ertekin1, Recep Kulcu2, Fatih Evrendilek3
1Department of Agricultural Machinery, Akdeniz University, Faculty of Agriculture, 07070, Antalya, Turkey. ertekin@akdeniz.edu.tr.
Selective absorber solar water heaters are most effective for Turkey, meeting energy needs across the country. While galvanized absorbers have shorter payback periods, selective absorbers offer superior long-term economic value.
Area of Science:
- Renewable Energy Engineering
- Solar Thermal Technology
- Energy Economics
Background:
- Solar water heating systems are crucial for sustainable energy solutions.
- Assessing collector performance requires site-specific meteorological and geographical data.
- Economic viability is a key factor in adopting solar water heating technologies.
Purpose of the Study:
- To investigate the performance and economic feasibility of different solar water heater collector types in Turkey.
- To compare copper, galvanized sheet, and selective absorber materials for solar water heating.
- To determine the most suitable solar water heater design for nationwide application in Turkey.
Main Methods:
- Utilized meteorological and geographical data from 129 Turkish sites.
- Calculated energy requirements, collector performance, and economic indicators using established formulations.
- Compared three absorber materials: copper, galvanized sheet, and selective absorber.
Main Results:
- Selective absorbers demonstrated the highest coverage rate for water heating energy requirements nationwide.
- Selective absorber systems had the highest Net Present Values (NPVs), indicating better long-term profitability.
- Galvanized absorbers offered shorter Payback Periods (PBPs) but lower overall economic returns compared to selective absorbers.
- Copper absorbers were found to be economically inappropriate based on the analyzed indicators.
Conclusions:
- Selective absorber solar water heaters are the most appropriate choice for Turkey due to their high energy coverage and superior NPV.
- While galvanized absorbers are cheaper initially and have faster PBPs, selective absorbers provide better long-term economic benefits.
- Copper absorbers are not recommended for solar water heating applications in Turkey based on economic performance.
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