THERMAL SCIENCE

International Scientific Journal

Muhammad S. Khan

,

Khuram Pervez Amber

,

Hafiz Muhammad Ali

,

Muhammad Abid

,

Tahir A. H Ratlamwala

,

Samina Javed

PERFORMANCE ANALYSIS OF SOLAR ASSISTED MULTIGENERATIONAL SYSTEM USING THERMINOL VP1 BASED NANOFLUIDS: A COMPARATIVE STUDY

ABSTRACT
The application of the nanofluids is suggested to enhance and improve the efficiency of solar thermal power system. In the present study, three different nanofluids (Fe2O3/therminol VP1, SiO2/therminol VP1 and Cu/therminol VP1) are numerically investigated in parabolic dish solar collector that is further integrated to a combined cycle for power and hydrogen production. Heat rejects from the power cycle is also utilized to drive a single effect absorption (LiBr/water) system. Furthermore, a comprehensive energy, exergy and exergo-environmental analysis are carried out by varying several input parameters and their influence on overall energetic and exergetic efficiencies, network output and rate of hydrogen generation is assessed. The engineering equation solver (EES) is employed to conduct the parametric study. Outcomes of the study demonstrate that the SiO2/VP1 has the better characteristics among the investigated nanofluids. The overall energetic efficiency of the SiO2/VP1, Fe2O3/VP1 and Cu/VP1 is almost 38.79%, 38.74% and 37.53%, while overall exergetic efficiency is 41.72%, 41.66% and 40.36%, respectively at 1000 Wm-2. The exergoenvironmental impact coefficient and impact index are noticed to be reduced for all the three nanofluids as mass flow rate increases. The hydrogen production rate for SiO2/VP1 is maximum and has observed to be increased by increasing the ambient temperature. Increase in nanoparticles concentration also rises the exergetic efficiency but reduces the thermal conductivity of the nanofluids. Coefficient of performance is noticed to be increased with rise in evaporator temperature, whereas, it is reduced by increasing the generator temperature.
KEYWORDS
parabolic dish, exergo-environmental, hydrogen, nanofluids
PAPER SUBMITTED: 2018-06-08
PAPER REVISED: 2019-02-01
PAPER ACCEPTED: 2019-02-14
PUBLISHED ONLINE: 2019-03-09
DOI REFERENCE: https://doi.org/10.2298/TSCI180608062K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 2, PAGES [865 - 878]
REFERENCES
  1. Loni, R. al., Thermodynamic analysis of a solar dish receiver using different nanofluids. Energy, 133 (2017), pp. 749-760.
  2. IRENA, Renewable power generation costs in 2012: an overview. Abu Dhabi: United Arab Emirates; 2012.
  3. Le Roux, WG. Et al., The efficiency of an open-cavity tubular solar receiver for a small-scale solar thermal Brayton cycle: Energy Convers Manag., 84 (2014), pp. 457-70.
  4. Qiu, K. et al., Simulation and experimental study of an air tube-cavity solar receiver: Energy Convers Manag., 103(2015), pp. 847-58.
  5. He, Y. et al., Experimental study on the light-heat conversion characteristics of nanofluids: Nanoscience and Nanotechnology Letters, 3(2011), pp. 494-96.
  6. Khullar, V. et al., Solar energy harvesting using nanofluids-based concentrating solar collector: Journal of Nanotechnology in Engineering and Medicine 3, 3 (2012): 031003
  7. Mahian, O. et al., Entropy generation during Al2O3/water nanofluid flow in a solar collector: effects of tube roughness, nanoparticle size, and different thermophysical models: Int J Heat Mass Transf, 78(2014), pp. 64-75.
  8. Sajid MU. and Ali HM., Recent advances in application of nanofluids in heat transfer devices: A critical review, Renewable and Sustainable Energy Reviews, 103 (2019), pp. 556-592.
  9. Pavlovic, S. et al., Thermal and exergetic investigation of a solar dish collector operating with mono and hybrid nanofluids: Thermal Science, 22 (2018), pp. 1383-1393.
  10. Ahmed, O. K. and Bawa, S. M., The combined effect of nanofluid and reflective mirrors on the performance of PV/thermal solar collector: Thermal Science, (2018): doi.org/10.2298/TSCI171203092A
  11. Laaraba. A., Numerical study of heat transfer in a flat plat thermal solar collector with partitions attached to its glazing: Thermal Science, (2018): doi.org/10.2298/TSCI170531101L
  12. Pavlovic, S. et al., Daily performance of a solar dish collector: Thermal Science, (2018): doi.org/10.2298/TSCI180124098P
  13. Montes, M. J. et al., Performance of a direct steam generation solar thermal power plant for electricity production as a function of the solar multiple: Solar Energy, 83(2009), pp. 679-689.
  14. Spelling, J., Favrat, D., Martin, A., and Augsburger, G., Thermoeconomic optimization of a combined-cycle solar tower power plant: Energy, Elsevier Ltd, 41(2012), pp. 113-120.
  15. Al-Sulaiman, F. A., Exergy analysis of parabolic trough solar collectors integrated with combined steam and organic Rankine cycles: Energy Conversion and Management, Elsevier Ltd, 77(2014), pp. 441-449.
  16. Dincer I, Rosen MA., Exergy, energy, environment and sustainable development: Oxford: Elsevier, 2007.
  17. Ahmadi, P et al., Exergo-environmental analysis of an integrated organic Rankine cycle for trigeneration: Energy Convers Manag., 64(2012), pp. 447-53.
  18. Caliskan, H. et al., Exergoeconomic and environmental impact analyses of a renewable energy based hydrogen production system: Int J Hydrogen Energy, 38(2013), pp. 6104-11.
  19. Parham, K. et al., Energy, exergy and environmental analysis of a novel combined system producing power, water and hydrogen: Energy, 134(2017), pp. 882-892.
  20. Abid, M. et al., Solar assisted multi-generation system using nanofluids: A comparative analysis: International Journal of Hydrogen Energy, 42(2017), pp. 21429 -21442.
  21. Ratlamwala, TAH. Et al., Performance analysis of a new designed PEM fuel cell: Int J Energy Res, 36(2012), pp.1121-32.
  22. Midilli, A. and Dincer, I., Development of some exergetic parameters for PEM fuel cells for measuring environmental impact and sustainability: Int J Hydrogen Energy, 34(2009), pp. 3858-72.
  23. Yilanci, A. et al., Performance analysis of a PEM fuel cell unit in a solar hydrogen system: Int J Hydrogen Energy, 33(2008), pp. 7538-52.
  24. Hollmuller, P. et al., Evaluation of a 5 kW photovoltaic hydrogen production and storage installation for a residential home in Switzerland: Int J Hydrogen Energy, 25(2000),pp. 97-109.
  25. Kalinci, Y. et al., Energy and exergy analyses of a hybrid hydrogen energy system: a case study for Bozcaada. Int J Hydrogen Energy, (2016), pp. 1-12.
  26. Ratlamwala, TAH. & Abid, M., Performance analysis of solar assisted multi-effect absorption cooling systems using nanofluids: A comparative analysis. International Journal of Energy Research, 42(2018), pp. 2901-15.
  27. Bahman, AMK., Modeling of solar-powered single-effect absorption cooling system and supermarket refrigeration/HVAC system, June 13, 2011.
  28. Asdrubali, F. et al., Solar cooling with small-size absorption chillers: different solutions for summer air conditioning." In Proceedings of the XIII European Conference IIR—Centro Studi Galileo, Milano, Italy, 2009. pp. 12-13
  29. De Vega, M. et al., Performance of a LiBr-water absorption chiller operating with plate heat exchangers: Energy conversion and management, 47, no. 18-19 (2006), pp. 3393-3407.
  30. Khanafer, K. & Vafai, K., A critical synthesis of thermophysical characteristics of nanofluids: Int. J. Heat. Mass Transf, 54(2011), pp. 4410-4428.
  31. Khan, M. S. et al., Energy, Exergy and Economic Feasibility Analyses of a 60 MW Conventional Steam Power Plant Integrated with Parabolic Trough Solar Collectors Using Nanofluids: Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, (2018), 1-17.
  32. Colburn AP., A method for correlating forced convection heat transfer data and a comparison with fluid friction: Trans. Am. Inst Chem Engrs, 29(1933), pp. 174-210.
  33. Ngo, L. C., Exergetic Analysis and Optimization of a Parabolic Dish Collector for Low Power Application, Center for Renewable and Sustainable Energy Studies. University of Pretoria: (2013)
  34. Sheykhlou, H. & Jafarmadar, S., Analysis of a combined power and ejector-refrigeration cycle based on solar energy: Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, 40(2016), pp. 57-67.
  35. Gebreslassie BH. Et al., Exergy analysis of multieffect water-LiBr absorption systems: from half to triple effect: Renew Energy, 35(2010), pp. 1773-1782.
  36. Ratlamwala, TAH. Et al., Exergetic and Environmental Impact Assessment of an Integrated System for Utilization of Excess Power from Thermal Power Plant. In Causes, Impacts and Solutions to Global Warming, Springer, New York, NY, 2013, pp. 803-824
  37. Gomri, R., Second law comparison of single effect and double effect vapour absorption refrigeration systems: Energy Conversion and Management, 50(2009), pp. 1279-1287.
  38. Cengel, YA., Boles, MA., Thermodynamics: an engineering approach. 7th ed. New York, McGraw-Hill; in SI units, 2017
PDF VERSION [DOWNLOAD]
Performance analysis of solar assisted multigenerational system using therminol VP1 based nanofluids: A comparative study

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence