Thermo-Economic Performance Evaluation of a Conical Solar Concentrating System Using Coil-Based Absorber
Abstract
:1. Introduction
2. Materials and Methods
2.1. Conical Condensing System Configuration and Method
2.2. Double Absorption Tube
2.2.1. Existing Absorber Tube
2.2.2. Coil Based Absorber
2.3. Nanofluid Manufacturing
2.4. Efficiency Calculation
2.5. Economic Analysis
3. Results and Discussion
4. Cost Analysis
5. Summary and Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Nomenclature
nanoparticles concentration | |
the thermal conductivity of the nanofluid (W/m⋅K) | |
thermal conductivities of the nanoparticles (W/m⋅K) | |
thermal conductivities of base fluid (W/m⋅K) | |
useful energy (W) | |
mass flow rate (kg/s) | |
specific heat (J/kg°C) | |
the outlet temperature of the thermal fluid (°C) | |
the inlet temperature of the thermal fluid (°C) | |
ambient temperature (°C) | |
thermal efficiency | |
Beam radiation (W/m2) | |
collector area (m2) | |
h | convective heat transfer coefficient (W/(m2K)) |
Temperature difference between the absorber and ambient air (°C) |
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CuO (0.25%) | Thermal Conductivity (W/m °C) |
---|---|
CTAB 1/10 | 0.789 |
CTAB 1 | 0.781 |
CTAB 10 | 0.763 |
AG 1/2 | 0.931 |
AG 1/4 | 0.864 |
AG 1 | 0.788 |
Parameters for Cost Analysis | ||
---|---|---|
Parameters | Comments | Value Range |
Useful life | Collector | 30 years |
Absorber | 30 years | |
Pump | 5 years | |
Mechanical life | Solar tracking system | 25–30 years |
Inflation rate | 2–3% | |
Interest rate | 0.5–2% | |
Energy cost (electricity) | 0.56 USD/kWh | |
Maintenance cost | 1% | |
Capital cost | ||
Components | existing absorber (USD) | coil-based absorber (USD) |
Solar tracking system | 540 | 540 |
Heat storage tank | 72 | 72 |
Absorber copper tube | 21 | 21 |
Coil | - | 15 |
Pump | 108 | 108 |
Supporting structure | 36 | 36 |
Insulation material | 17 | 13 |
Total cost | 794 | 805 |
Working Medium | Absorber Tube | Average Efficiency (η) | Maximum Efficiency (η) | Minimum Efficiency (η) |
---|---|---|---|---|
Distilled Water | Absorber tube without coil | 65.1% | 78.4% | 53% |
Coil based absorber | 72.2% | 81% | 58.9% | |
CuO nanofluid | Absorber tube without coil | 68.4% | 80.45% | 59.7% |
Coil based absorber | 79.1% | 83.1% | 75.1% |
Heating Medium Flow Rate (L/min) in Absorber Tube | Total Capital Cost (USD) | Electricity Savage (USD) Six Months per Year Basis | Payback Period (Years) | Solar Fraction | |||||
---|---|---|---|---|---|---|---|---|---|
Without Coil | With Coil | Without Coil | With Coil | Without Coil | With Coil | Without Coil | With Coil | Without Coil | With Coil |
4 | 794 | 805 | 43 | 59 | 18.5 | 14 | 0.30 | 0.42 | |
5 | 45 | 65 | 16 | 12.5 | 0.35 | 0.46 | |||
6 | 56 | 74 | 14.5 | 11 | 0.40 | 0.52 | |||
7 | 51 | 68 | 16 | 12 | 0.36 | 0.48 |
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Alsalame, H.A.M.; Hussain, M.I.; Amjad, W.; Ali, A.; Lee, G.H. Thermo-Economic Performance Evaluation of a Conical Solar Concentrating System Using Coil-Based Absorber. Energies 2022, 15, 3369. https://doi.org/10.3390/en15093369
Alsalame HAM, Hussain MI, Amjad W, Ali A, Lee GH. Thermo-Economic Performance Evaluation of a Conical Solar Concentrating System Using Coil-Based Absorber. Energies. 2022; 15(9):3369. https://doi.org/10.3390/en15093369
Chicago/Turabian StyleAlsalame, Haedr Abdalha Mahmood, Muhammad Imtiaz Hussain, Waseem Amjad, Asma Ali, and Gwi Hyun Lee. 2022. "Thermo-Economic Performance Evaluation of a Conical Solar Concentrating System Using Coil-Based Absorber" Energies 15, no. 9: 3369. https://doi.org/10.3390/en15093369