Peningkatan konduktivitas termal oli sintetis sebagai fluida pemindah panas melalui pencampuran serbuk besi

Adian Rahmat; As Natio Lasman; Dwi Rahmalina

doi:10.24853/sintek.16.1.53-60

Peningkatan konduktivitas termal oli sintetis sebagai fluida pemindah panas melalui pencampuran serbuk besi

Adian Rahmat, As Natio Lasman, Dwi Rahmalina

Abstract

Utilization of renewable energy that is specifically sourced from the sun is a good choice to be applied in Indonesia considering the high intensity of the sun and an even supply throughout the year. Utilization of this energy can be focused on solar thermal energy which is produced using solar thermal power. One of the most important parts of solar thermal power is the heat transfer fluid which functions to absorb the heat from the source and transfer it to a thermal load or heat engine. This research focuses on the process of changing the function of heat transfer fluid sourced from synthetic mineral oil. The choice of synthetic mineral oil has many advantages, especially in terms of price and availability. The main problem is the nature of synthetic mineral oil which has low thermal conductivity; thus, improvements are needed to increase thermal conductivity through the addition of sensible materials. Three samples of synthetic oil were prepared, namely oil 10W-30, 10W-40 and 20W-40 and mixed with iron powder in the range of 4 - 6% by mass. The 10W – 40 synthetic oil has the best heat transfer performance due to the low Total Base Number value. The addition of Fe powder (6 wt%) can accelerate the process of absorption and heat dissipation in synthetic lubricant base hybrid fluid. This research also obtains a critical line graph that can be used as a reference in determining the working balance of hybrid fluid in solar thermal system applications.

Keywords

heat transfer fluid; machine lubricant; synthetic lubricant; fe powder

Full Text:

PDF

References

P. Wang, R. Liang, Y. Yu, J. Zhang, J. Lv, M. Bai, The flow and heat transfer characteristics of engine oil inside the piston cooling gallery, Appl. Therm. Eng. 115 (2017) 620–629. https://doi.org/10.1016/j.applthermaleng.2017.01.014.

M. Ma, Y. Zhai, P. Yao, Y. Li, H. Wang, Synergistic mechanism of thermal conductivity enhancement and economic analysis of hybrid nanofluids, Powder Technol. 373 (2020) 702–715. https://doi.org/10.1016/j.powtec.2020.07.020.

K. Vignarooban, X. Xu, A. Arvay, K. Hsu, A.M. Kannan, Heat transfer fluids for concentrating solar power systems - A review, Appl. Energy. 146 (2015) 383–396. https://doi.org/10.1016/j.apenergy.2015.01.125.

L.A. Weinstein, J. Loomis, B. Bhatia, D.M. Bierman, E.N. Wang, G. Chen, Concentrating Solar Power, Chem. Rev. 115 (2015) 12797–12838. https://doi.org/10.1021/acs.chemrev.5b00397.

R. Ling-zhi, Z. Xin-gang, Z. Yu-zhuo, L. Yan-bin, The economic performance of concentrated solar power industry in China, J. Clean. Prod. 205 (2018) 799–813. https://doi.org/10.1016/j.jclepro.2018.09.110.

M.S. Praveen Kumar V, Analysis of Heat Transfer Fluids in Concentrated Solar Power (CSP) A Review Paper, Int. J. Eng. Res. Technol. 3 (2014) 239–241. www.ijert.org.

L. Heller, Literature review on heat transfer fluids and thermal energy storage systems in CSP plants, Lit. Rev. Heat Transf. Fluids Therm. Energy Storage Syst. CSP Plants. (2013). http://sterg.sun.ac.za/wp-content/uploads/2011/08/HTF_TESmed_Review_2013_05_311.pdf.

I. Sarbu, C. Sebarchievici, A comprehensive review of thermal energy storage, Sustain. 10 (2018). https://doi.org/10.3390/su10010191.

T. Sokhansefat, A.B. Kasaeian, F. Kowsary, Heat transfer enhancement in parabolic trough collector tube using Al 2O3/synthetic oil nanofluid, Renew. Sustain. Energy Rev. 33 (2014) 636–644. https://doi.org/10.1016/j.rser.2014.02.028.

G.J. Rani, G.S. Rani, A. Praveen, Materials Today : Proceedings Nano fluids effect on crossflow heat exchanger characteristics – Review, Mater. Today Proc. (2020). https://doi.org/10.1016/j.matpr.2020.10.210.

Z. Xuan, Y. Zhai, M. Ma, Y. Li, H. Wang, Thermo-economic performance and sensitivity analysis of ternary hybrid nanofluids, J. Mol. Liq. (2020) 114889. https://doi.org/10.1016/j.molliq.2020.114889.

Z. Chen, D. Zheng, J. Wang, L. Chen, B. Sundén, Experimental investigation on heat transfer characteristics of various nanofluids in an indoor electric heater, Renew. Energy. 147 (2020) 1011–1018. https://doi.org/10.1016/j.renene.2019.09.036.

C.V.C. Vishal, R.K. Kanala, C.S.K. Raju, P.K. Madathil, P. Saha, B.R. Rao, G. Sriganesh, K. Ramesh, Sub-micron sized metal oxides based organic thermic fluids with enhanced thermo-physical properties, Appl. Therm. Eng. 163 (2019) 114337. https://doi.org/10.1016/j.applthermaleng.2019.114337.

Y.J. Chiu, W.M. Yan, H.C. Chiu, J.H. Jang, G.Y. Ling, Investigation on the thermophysical properties and transient heat transfer characteristics of composite phase change materials, Int. Commun. Heat Mass Transf. 98 (2018) 223–231. https://doi.org/10.1016/j.icheatmasstransfer.2018.09.011.

C.M. Mason, R.M. Doe, The determination of the thermal conductivity of fluids, J. Chem. Educ. 5 (2006) 182–184. https://doi.org/10.1021/ed014p182.

U. States, A. Engineers, T. Sae, Engine oil viscosity classification, Tribol. Int. 10 (2002) 77–80. https://doi.org/10.1016/0301-679x(77)90102-5.

A. Shabib-Asl, M.A. Ayoub, I.M. Saaid, P.P.J. Valentim, Experimental investigation into effects of crude oil acid and base number on wettability alteration by using different low salinity water in sandstone rock, J. Japan Pet. Inst. 58 (2015) 228–236. https://doi.org/10.1627/jpi.58.228.

D.C. Adhitya, Penambahan Pasir Vulkanik untuk Meningkatkan Sifat Termal Composite PCM sebagai Thermal Energy Storage, 2020.

DOI: https://doi.org/10.24853/sintek.16.1.53-60