مروری بر افزایش کارایی و کاهش مصرف انرژی در سیستم‌های تبرید خانگی با استفاده از نانو‌مبردها
محورهای موضوعی : یافته های نوین کاربردی و محاسباتی در سیستم های مکانیکی
مجید جلیلیان
1
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محمد حسن کامیاب
2
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حامد شریفی دوست
3
1 - کارشناسی ارشد مهندسی مکانیک، دانشکده عمران، آب و انرژی، دانشگاه جامع امام حسین(ع)
2 - مهندسی مکانیک، دانشکده عمران، آب وانرژی، دانشگاه جامع امام حسین(ع)
3 - کارشناسی ارشد مهندسی مکانیک
کلید واژه: نانو‌مبردها, مصرف انرژی, سیستم‌های تبرید خانگی, انتقال حرارت,
چکیده مقاله :
این مطالعه مروری به بررسی نقش نانو‌مبردها با ویژگی‌های ترموفیزیکی و انتقال حرارت منحصربه‌فرد در بهبود عملکرد سیستم‌های تبرید خانگی می‌پردازد. یافته‌ها نشان می‌دهند که افزودن نانوذرات به مبردها می‌تواند با افزایش ظرفیت خنک‌کنندگی و کاهش نیاز به توان ورودی کمپرسور، کارایی انرژی را افزایش دهد. با این حال، چالش‌هایی مانند پایداری، توزیع یکنواخت و جلوگیری از تجمع نانوذرات، از عوامل مهمی هستند که در بهبود عملکرد سیستم تاثیرگذارند. نتایج حاکی از آن است که نانوسیالات با بهبود هدایت حرارتی و کاهش زمان کارکرد کمپرسور، مصرف انرژی را کاهش می‌دهند؛ به‌ویژه در یخچال‌هایی که نیازمند کارکرد مداوم هستند. در این تحقیق همچنین بیان می‌گردد که هدایت حرارتی نانو‌مبردها با کاهش اندازه ذرات و افزایش دما افزایش یافته و ویسکوزیته آن‌ها با افزایش دما کاهش می‌یابد. برای نمونه، در نانو مبرد SWCNT/R-134a، افزایش هدایت حرارتی در دمای 325 درجه کلوین و غلظت حجمی 5 درصد، حدود 43 درصد بوده است. به‌طور کلی، یافته‌های این پژوهش نشان می‌دهد که استفاده از نانو‌مبردها می‌تواند رویکردی مؤثر در کاهش مصرف انرژی و افزایش کارایی سیستم‌های تبرید خانگی باشد.
This study addresses the growing demand for cooling systems, especially household refrigerators, driven by rising global temperatures, economic growth, and urbanization. Domestic refrigerators are significant energy consumers, impacting both energy usage and household expenses. This research examines the influence of nanofluids with unique thermophysical and thermal properties on refrigerator cooling systems. The findings suggest that incorporating nanoparticles into refrigerants enhances cooling capacity while reducing compressor input power, leading to improved system efficiency. However, challenges such as nanoparticle stability, uniform distribution, agglomeration, and sedimentation may negatively affect performance. Results indicate that the thermal conductivity of nano-refrigerants increases with smaller particle size and higher temperatures. Moreover, nanofluids can enhance heat transfer efficiency, minimize compressor run-time, and reduce energy consumption—vital for continuously operating refrigeration systems. The analysis reveals that nano-refrigerant viscosity rises with increased particle volume fraction and decreases with temperature. In the SWCNT/R-134a nano-refrigerant, thermal conductivity improved by approximately 43% at 325 K with a 5% volume concentration. For 300 K and a 1% concentration, thermal conductivity showed only a 4% increase. Similarly, the viscosity of R123-TiO₂ nano-refrigerant was highest at 300 K with a 2% particle fraction. These findings underscore the potential of nano-refrigerants, combined with local conditions and climate adaptability, to substantially enhance the efficiency of domestic refrigeration systems
[1] Kuprasertwong, N., Padungwatanaroj, O., Robin, A., Udomwong, K., Tula, A., Zhu, L., Zhou, L., Wang, B., Wang, S., Gani, R., (2021). Computer-Aided Refrigerant Design: New Developments. In Computer Aided Chemical Engineering. 50, pp 19-24. Elsevier.
[2] Fenton, D.L., Callahan, C.W., Elansari, A.M., (2019). Refrigeration. In Postharvest Technology of Perishable Horticultural Commodities. pp 209-270. Woodhead Publishing.
[3] Ajayi, O.O., Aba-Onukaogu, C.C., Salawu, E.Y., Owoeye, F.T., Akinlabu, D.K., Popoola, A.P.I., Afolalu, S.A., Abioye, A.A., (2019). Effect of biomaterial (Citrullus Lanatus Peels) nanolubricant on the thermal performance and energy consumption of R600a in refrigeration system. In Energy Technology 2019: Carbon Dioxide Management and Other Technologies . pp. 91-102. Springer International Publishing.
[4] Malik, M.I., Hussain, D., Shah, M.R., Guo, D.S. eds., (2024). Handbook of Nanomaterials, Volume 1: Electronics, Information Technology, Energy, Transportation, and Consumer Products. Elsevier.
[5] Afolalu, S.A., Abioye, A.A., Udo, M.O., Adetunji, O.R., Ikumapayi, O.M., Adejuyigbe, S.B., (2018). Data showing the effects of temperature and time variances on nano-additives treatment of mild steel during machining. Data in brief, 19, pp 456-461.
[6] Eggoh, J.C., Bangake, C., Rault, C., (2011). Energy consumption and economic growth revisited in African countries. Energy policy, 39(11), pp 7408-7421.
[7] Nair, V., Parekh, A.D., Tailor, P.R., (2022). Experimental investigation of a vapour compression refrigeration system using R134a/Nano-oil mixture. International Journal of Refrigeration, 112, pp 21-36.
[8] Fontana, L., Atella, V., Kammen, D.M., (2013). Energy efficiency as a unifying principle for human, environmental, and global health. F1000Research, 2.
[9] Ajayi, O.O., Okolo, T.I., Salawu, E.Y., Owoeye, F.T., Akinlabu, D.K., Akinlabi, E.T., Akinlabi, S.T., Afolalu, S.A., (2019). Performance and energy consumption analyses of R290/Bio-based nanolubricant as a replacement for R22 refrigerant in air-conditioning system. In Energy Technology 2019: Carbon Dioxide Management and Other Technologies. pp. 103-112. Springer International Publishing.
[10] Singh, A.K., (2008). Thermal conductivity of nanofluids. Defence Science Journal, 58(5), p.600.
[11] Zinatloo-Ajabshir, S., Rashidi, M.M., (2024). Nanofluids at a glance. In Nanofluids. pp. 1-8. Elsevier.
[12] Esfe, M.H., Alidoust, S., Tamrabad, S.N.H., Toghraie, D., Hatami, H., (2023). Thermal conductivity of MWCNT-TiO2/Water-EG hybrid nanofluids: Calculating the price performance factor (PPF) using statistical and experimental methods (RSM). Case Studies in Thermal Engineering, 48, p 103094.
[13] Masuda, H., Ebata, A., Teramae, K., (1993). Alteration of thermal conductivity and viscosity of liquid by dispersing ultra-fine particles. Dispersion of Al2O3, SiO2 and TiO2 ultra-fine particles.
[14] Choi, S.U., Eastman, J.A., (1995). Enhancing thermal conductivity of fluids with nanoparticles (No. ANL/MSD/CP-84938; CONF-951135-29). Argonne National Lab.(ANL), Argonne, IL (United States).
[15] Dincer, I., (2017). Refrigeration systems and applications. John Wiley & Sons.
[16] Udo, M., Akinkunmi, S.O., Afolalu, S.A., Noiki, A.A., Yusuf, O.O., Emetere, M.E., Samuel, O.D., (2022). Necessity for Nanofluids in Refrigeration Systems: An Overview. Bioenergy and Biochemical Processing Technologies: Recent Advances and Future Demands, pp 355-363.
[17] Maina, P., Huan, Z., (2015). A review of carbon dioxide as a refrigerant in refrigeration technology. South african journal of science, 111(9-10), pp 01-10.
[18] Sonnenrein, G., Elsner, A., Baumhögger, E., Morbach, A., Fieback, K., Vrabec, J., (2015). Reducing the power consumption of household refrigerators through the integration of latent heat storage elements in wire-and-tube condensers. International Journal of Refrigeration, 51, pp 154-160.
[19] Prasad, T.H., Reddy, K.P., Reddy, D.R.R., (2009). Exergy analysis of vapour compression refrigeration. International journal of applied engineering research, 4(12), pp 2505-2526.
[20] Mariappan, V., Udayakumar, M., Shrestha, P.L., Suresh, S., (2012). Thermodynamic analysis of R134a–DMAC vapor absorption refrigeration (VAR) system. International Journal of Computational Engineering Research, 2(1), pp 86-96.
[21] Kumar, D.D., Arasu, A.V., (2018). A comprehensive review of preparation, characterization, properties and stability of hybrid nanofluids. Renewable and Sustainable Energy Reviews, 81, pp 1669-1689.
[22] Devendiran, D.K., Amirtham, V.A., (2016). A review on preparation, characterization, properties and applications of nanofluids. Renewable and Sustainable Energy Reviews, 60, pp 21-40.
[23] Sarkar, J., (2024). Applications of nanofluids in refrigeration and air-conditioning. In Advanced Materials-Based Fluids for Thermal Systems. pp 35-60. Elsevier.
[24] Vasconcelos, A.A., Gómez, A.O.C., Bandarra Filho, E.P., Parise, J.A.R., (2017). Experimental evaluation of SWCNT-water nanofluid as a secondary fluid in a refrigeration system. Applied Thermal Engineering, 111, pp 1487-1492.
[25] Raghavalu, K.V., Rasu, N.G., (2018), March. Review on applications of nanoFluids used in vapour compression refrigeration system for cop enhancement. In IOP Conference Series: Materials Science and Engineering.330(1), p 012112. IOP Publishing.
[26] Ajayi, O.O., Omowa, O.F., Omotosho, O.A., Abioye, O.P., Akinlabi, E.T., Akinlabi, S.A., Abioye, A.A., Owoeye, F.T., Afolalu, S.A., (2018). Experimental investigation of the effect of ZnO-Citrus sinensis nano-additive on the electrokinetic deposition of zinc on mild steel in acid chloride. In TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. pp. 35-40. Springer International Publishing.
[27] Ajayi, O.O., Ukasoanya, D.E., Ogbonnaya, M., Salawu, E.Y., Okokpujie, I.P., Akinlabi, S.A., Akinlabi, E.T., Owoeye, F.T., (2019). Investigation of the effect of R134a/Al2O3–nanofluid on the performance of a domestic vapour compression refrigeration system. Procedia Manufacturing, 35, pp 112-117.
[28] Azmi, W.H., Sharma, K.V., Mamat, R., Najafi, G., Mohamad, M.S., (2016). The enhancement of effective thermal conductivity and effective dynamic viscosity of nanofluids–A review. Renewable and Sustainable Energy Reviews, 53, pp 1046-1058.
[29] Bhattad, A., Sarkar, J., Ghosh, P., (2018). Improving the performance of refrigeration systems by using nanofluids: A comprehensive review. Renewable and Sustainable Energy Reviews, 82, pp 3656-3669.
[30] Rasheed, A.K., Khalid, M., Rashmi, W., Gupta, T.C.S.M., Chan, A., (2016). Graphene based nanofluids and nanolubricants–Review of recent developments. Renewable and Sustainable Energy Reviews, 63, pp 346-362.
[31] Jiang, W., Ding, G., Peng, H., Gao, Y., Wang, K., (2009). Experimental and model research on nanorefrigerant thermal conductivity. HVAC&R Research, 15(3), pp 651-669.
[32] Jiang, W., Ding, G., Peng, H., (2009). Measurement and model on thermal conductivities of carbon nanotube nanorefrigerants. International Journal of Thermal Sciences, 48(6), pp 1108-1115.
[33] Mahbubul, I.M., Saidur, R., Amalina, M.A., (2013). Thermal conductivity, viscosity and density of R141b refrigerant based nanofluid. Procedia Engineering, 56, pp 310-315.
[34] Mahbubul, I.M., Fadhilah, S.A., Saidur, R., Leong, K.Y., Amalina, M.A., (2013). Thermophysical properties and heat transfer performance of Al2O3/R-134a nanorefrigerants. International Journal of Heat and Mass Transfer, 57(1), pp 100-108.
[35] Alawi, O.A., Sidik, N.A.C., (2015). The effect of temperature and particles concentration on the determination of thermo and physical properties of SWCNT-nanorefrigerant. International Communications in Heat and Mass Transfer, 67, pp 8-13.
[36] Alawi, O.A., Sidik, N.A.C., (2014). Influence of particle concentration and temperature on the thermophysical properties of CuO/R134a nanorefrigerant. International Communications in Heat and Mass Transfer, 58, pp 79-84.
[37] Alawi, O.A., Sidik, N.A.C., (2014). Mathematical correlations on factors affecting the thermal conductivity and dynamic viscosity of nanorefrigerants. International Communications in Heat and Mass Transfer, 58, pp 125-131.
[38] Sharma, A.K., Tiwari, A.K., Dixit, A.R., (2016). Rheological behaviour of nanofluids: A review. Renewable and Sustainable Energy Reviews, 53, pp 779-791.
[39] Meyer, J.P., Adio, S.A., Sharifpur, M., Nwosu, P.N., (2016). The viscosity of nanofluids: a review of the theoretical, empirical, and numerical models. Heat Transfer Engineering, 37(5), pp 387-421.
[40] Mahbubul, I.M., Saadah, A., Saidur, R., Khairul, M.A., Kamyar, A., (2015). Thermal performance analysis of Al2O3/R-134a nanorefrigerant. International Journal of heat and Mass transfer, 85, pp 1034-1040.
[41] Alawi, O.A., Sidik, N.A.C., Kherbeet, A.S., (2015). Measurements and correlations of frictional pressure drop of TiO2/R123 flow boiling inside a horizontal smooth tube. International communications in heat and mass transfer, 61, pp 42-48.
[42] Namburu, P.K., Kulkarni, D.P., Misra, D., Das, D.K., (2007). Viscosity of copper oxide nanoparticles dispersed in ethylene glycol and water mixture. Experimental Thermal and Fluid Science, 32(2), pp 397-402.
[43] Kulkarni, D.P., Das, D.K., Chukwu, G.A., (2006). Temperature dependent rheological property of copper oxide nanoparticles suspension (nanofluid). Journal of nanoscience and nanotechnology, 6(4), pp 1150-1154.