Kajian Eksperimental Mesin Pendingin Adsorpsi Tenaga Surya dengan Menggunakan Adsorben Campuran

Tulus Burhanuddin Sitorus

Abstract


The purpose of this study was to obtain the performance of the adsorption refrigerator driven by solar energy using mixed adsorbents. The refrigerant used is methanol with 99% purity. The adsorbent used is a mixture of active carbon-active alumina with mass of 7 kg. The type of active alumina used is molecular sieve 13X and the activated carbon used is the ordinary type of coconut shell with 1-3 mm grain size and is produced in the province of North Sumatra. Note that active alumina and activated carbon tested can absorb methanol in the range of 350 ml/kg and 300 ml/kg with a heat source of about 120oC. The test was carried out in the open field exposed to solar radiation from 08.00 WIB until 08.00 WIB the next day for seven cycles. The average of solar radiation ranges from 107.036-214.44 W/m2, and the duration of radiation varies from 12.03 to 12.28 hours/day during experiments. The test results also show that the use of mixed adsorbents with methanol adsorbate can produce evaporation temperatures up to about 4,16-13,90°C with a heat source from a temperature of 91.32-97.35°C. The efficiency of collector obtained during testing ranges from 60.09 to 62.26% with maximum solar radiation conditions ranging from 799.40 to 882.76 W/m2. The COP value obtained in the range 0.0770-0.1003 with the total daily radiation between 11.245-17.156 MJ/m2.


Keywords


Adsorption Refigeration; Solar Energy; Mixed Adsorbent

Full Text:

PDF

References


SITORUS, T.B., et al., “Experimental Study of Solar Refrigerator System Using Activated Alumina and Methanol Adsorption Pair”, International Journal of Technology, IJTech Journal, v. 7, n. 5, pp. 910-920, 2016.

SITORUS T.B. et al., “A Study on Adsorption Refrigerator Driven by Solar Collector Using Indonesian Activated Carbon”. J. Eng. Technol. Sci., v. 49, n. 5, pp. 657-670, 2017.

WANG Y. et al., “Experimental investigation of a solar-powered adsorption refrigeration system with the enhancing desorption”, Energy Conversion and Management, v. 155, pp. 253-261, Jan. 2018.

AZIZ, C.Y.A, FIRDAUS, R., Pemanfaatan Panas di Pipa Tekanan Tinggi pada Mesin Pendingin (AC)”, Jurnal Rekayasa Mesin, v. 9, n.1, pp. 15-21, 2018.

MAHESH, A., “Solar collectors and adsorption materials aspects of cooling system”, Renewable and Sustainable Energy Reviews,v.73,pp. 1300-1312, Jun. 2017.

RASHIDI, S., et al., “A review on the applications of porous materials in solar energy systems," Renewable and Sustainable Energy Reviews, v. 73 pp. 1198-1210, Jun. 2017.

LI, M. et al., ”Experimental study on dynamic performance analysis of a flat-plate solar solid-adsorption refrigeration for the ice maker”. Renewable Energy, 27, n. 2, pp. 211-221, Oct. 2002.

KHATTAB, M.N., ”A novel solar-powered adsorption refrigeration module”, Applied Thermal Engineering, 24, n. 17-18, pp. 2747-2760, Dec. 2004.

LI M., et al., “Development of no valve solar ice maker”, Applied Thermal Engineering, v. 24, n.5-6, pp. 865-872, Apr. 2004.

SINGH, V.K., KUMAR A.E., “Experimental investigation and thermodynamic analysis of CO2 adsorption on activated carbons for cooling system”, Journal of CO2 Utilization,v. 17, pp. 290-304, Jan. 2017.

SITORUS, T.B., et al., “Performance Analyses of Solar Adsorption Refrigeration System Using Indonesian Activated Carbon and Methanol as Working Pair”, Proceeding of the 6th International Conference on Trends in Agricultural Engineering, pp. 588-596, Prague, Sep. 2016.

BRITES, N.J.V.G., et al, “Influence of the design parameters on the overall performance of a solar adsorption refrigerator”, Renewable Energy, v. 86, pp.238 -250, Feb. 2016.

WANG, W.L., et al., “A Review on Adsorption Working Pairs for Refrigeration”, Renewable and Sustainable Energy Reviews, v. 13, n. 3, pp. 518-534, Apr. 2009.

YOUNES, M. M., et al., “A review on adsorbent-adsorbate pairs for cooling applications”. Applied Thermal Engineering, v. 114, pp. 394-414, Mar. 2017.

HADJ AMMAR, M.A., et al., “Thermodynamic analysis and performance of an adsorption refrigeration system driven by the solar collector”, Applied Thermal Engineering, v. 112, pp.1289-1296, Feb. 2017.

HAMZA, A., ALI H., “Performance assessment and gained operational experiences of a residential scale solar thermal driven adsorption cooling system installed in the hot, arid area”, Energy and Buildings, v. 138, pp.271-279, Mar. 2017.

DUFFIE, J.A., Solar Engineering of Thermal Processes, 3 ed, New York, Wiley, 2006.

AMBARITA, H., ”The Adsorption Capacity of Activated Carbon and Activated Alumina as Adsorbent Against Refrigerants in Adsorption Cycle”, Proceedings of the National Seminar, Mechanical Engineering - University of Indonesia (SNTTM XIII), pp. 300-306, Jakarta, Oct. 2014

T.B., SITORUS, et al., “Performance of the natural cooler to keep the freshness of vegetables and fruits in Medan City”, IOP Conference Series: Materials Science and Engineering, v. 309,

KUMMER, H., et al., “Thermally driven refrigeration by methanol adsorption on coatings of HKUST-1 and MIL-101(Cr)”, Applied Thermal Engineering, v. 117, pp. 689-697, May 2017.

ERIC. H.J., “A Study of Thermal Decomposition of Methanol In Solar-Powered Adsorption Refrigeration Systems”, Solar Energy, v. 62, n.5, pp. 325 -329, May 1998.




DOI: https://doi.org/10.21776/ub.jrm.2019.010.01.7

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.