KAJIAN TERMODINAMIKA ETANOL SEBAGAI REFRIGERAN PADA SIKLUS KOMPRESI UAP
DOI:
https://doi.org/10.5281/zenodo.16973298Keywords:
Coefficient of Performance, Refrigeration, Temperature EvaporatorAbstract
Pencarian refrigeran alternatif yang ramah lingkungan terus menjadi prioritas utama dalam industri pendingin dan tata udara, didorong oleh kebutuhan untuk menggantikan refrigeran konvensional yang memiliki Potensi Pemanasan Global (GWP) tinggi. Penelitian ini bertujuan untuk melakukan analisis komparatif terhadap karakteristik kinerja termodinamika etanol sebagai refrigeran alternatif dibandingkan dengan refrigeran konvensional, yaitu R22, R134a, R32, dan R290. Analisis dilakukan berdasarkan data kinerja yang diperoleh dari sistem refrigerasi kompresi uap standar. Parameter utama yang dievaluasi adalah Koefisien Performansi (COP) sebagai fungsi dari temperatur evaporator dan efisiensi isentropik kompresor sebagai fungsi dari COP. Hasil penelitian menunjukkan bahwa nilai COP untuk semua fluida kerja meningkat secara linear dengan kenaikan temperatur evaporator. Menariknya, pada temperatur evaporator yang sama, etanol menunjukkan nilai COP sistem yang sangat sebanding dengan keempat refrigeran konvensional lainnya. Namun, analisis lebih lanjut pada kinerja kompresor mengungkapkan perbedaan yang signifikan. Untuk setiap nilai COP yang dicapai, efisiensi isentropik kompresor saat menggunakan etanol secara konsisten jauh lebih rendah, dengan penurunan efisiensi tercatat sekitar 15-20% dibandingkan dengan refrigeran lainnya. Penurunan efisiensi kompresor ini mengindikasikan bahwa untuk menghasilkan efek pendinginan yang sama, kompresor memerlukan input kerja aktual yang lebih besar saat menggunakan etanol. Hal ini berpotensi menyebabkan konsumsi energi keseluruhan yang lebih tinggi. Dengan demikian, dapat disimpulkan bahwa meskipun etanol menunjukkan COP sistem yang sebanding, kinerjanya secara signifikan terdegradasi oleh inefisiensi pada tahap kompresi, menjadikannya alternatif yang kurang efisien dibandingkan R22, R134a, R32, dan R290 dalam kondisi operasi yang diuji.
Downloads
References
[1] S. M. D. Kolo, J. K. Mere, And P. M. Bria, "Sintesis Bioetanol Dari Limbah Kulit Pinang (Areca Catechu L.) Mdengan Microwave Irradiasi Menggunakan Katalis H2so4," Jurnal Redoks, Vol. 9, No. 1, Pp. 23-30, 2024, Doi: 10.31851/Redoks.V9i1.13930.
[2] P. M. Bria And S. M. D. Kolo, "Sintesis Bioetanol Dari Rumput Laut Coklat (Sargassum Sp) Asal Pulau Timor Sebagai Energi Terbarukan," Eksergi, Vol. 20, No. 3, P. 162, 2023, Doi: 10.31315/E.V20i3.9857.
[3] M. Lache, C. Kappelhoff, J. Seiler, And A. Bardow, "Water And Ethanol As Refrigerant Mixture Enabling Adsorption Cooling Below 0° C," Energy Technology, Vol. 11, No. 3, P. 2201158, 2023.
[4] S. Sukarman, A. Abdullah, And R. H. Rahmanto, "Analisis Kinerja Mesin Pendingin Kompresi Uap Menggunakan Hfc-236fa Sebagai Alternatif Pengganti R-22," Jtera (Jurnal Teknologi Rekayasa), Vol. 4, No. 1, P. 131, 2019, Doi: 10.31544/Jtera.V4.I1.2019.131-138.
[5] V. H. Panato, D. F. M. Pico, And E. P. Bandarra Filho, "Experimental Evaluation Of R32, R452b And R454b As Alternative Refrigerants For R410a In A Refrigeration System," International Journal Of Refrigeration, Vol. 135, Pp. 221-230, 2022.
[6] J. M. Belman-Flores, A. Rodríguez-Muñoz, C. G. Pérez-Reguera, And A. Mota-Babiloni, "Experimental Study Of R1234yf As A Drop-In Replacement For R134a In A Domestic Refrigerator," International Journal Of Refrigeration, Vol. 81, Pp. 1-11, 2017.
[7] D. C. Rahardjo, S. P. Fitri, And E. M. Wardhana, "Analisis Kinerja Termal Sistem Refrigerasi Hybrid Menggunakan Phase Change Material Pada Eco Reefer Container Kapasitas ½ Ton," Jurnal Teknik Its, Vol. 12, No. 3, 2023, Doi: 10.12962/J23373539.V12i3.124112.
[8] I. G. Wiratmaja, G. Widayana, And E. Elisa, "Analisis Pengaruh Variasi Jarak Katup Ekspansi Dengan Kondensor Terhadap Laju Pendinginan Ruangan Dan Cop Mesin Pengkondisian Udara Tipe Split Air Conditioning," Jurnal Pendidikan Teknik Mesin Undiksha, Vol. 10, No. 1, Pp. 75-85, 2022, Doi: 10.23887/Jptm.V10i1.45806.
[9] R. Powade, A. Rane, A. Rane, O. Sutar, And V. Bagade, "Performance Investigation Of Refrigerants R290 And R134a As An Alternative To R22," Int. J. For Research In App. Sci. & Engg. Tech, Vol. 6, Pp. 4668-4476, 2018.
[10] J. Soni Et Al., "Investigative Comparison Of R134a, R290, R600a And R152a Refrigerants In Conventional Vapor Compression Refrigeration System," Materials Today: Proceedings, 2023.
[11] P. A. Domanski And D. A. Yashar, "Comparable Performance Evaluation Of Hc And Hfc Refrigerants In An Optimized System," 2006.
[12] A. Antunes, E. Bandarra Filho, O. Mendonza, L. Souza, And M. Bertoni, "Experimental Evaluation Of Refrigerants R290, R32 And R410a In A Refrigeration System Originally Designed For R22," 2014: International Conference On Heat Transfer, Fluid Mechanics And Thermodynamics.
[13] M. M. Deshmukh And K. Mali, "Performance Comparison Of R22 Refrigerant With Alternative Hydrocarbon Refrigerants," International Journal On Theoretical And Applied Research In Mechanical Engineering (Ijtarme), Vol. 4, No. 2, Pp. 17-21, 2015.
[14] M. Altınkaynak, E. Olgun, And A. Ş. Şahin, "Comparative Evaluation Of Energy And Exergy Performances Of R22 And Its Alternative R407c, R410a And R448a Refrigerants In Vapor Compression Refrigeration Systems," El-Cezeri, Vol. 6, No. 3, Pp. 659-667, 2019.
[15] A. Dalkilic And S. Wongwises, "A Performance Comparison Of Vapour-Compression Refrigeration System Using Various Alternative Refrigerants," International Communications In Heat And Mass Transfer, Vol. 37, No. 9, Pp. 1340-1349, 2010.
[16] V. Jain, S. Kachhwaha, And R. Mishra, "Comparative Performance Study Of Vapour Compression Refrigeration System With R22/R134a/R410a/R407c/M20," International Journal Of Energy And Environment, Vol. 2, No. 2, Pp. 297-310, 2011.
[17] A. Saibhargav, K. S. Reddy, And V. M. Reddy, "Performance Analysis Of Vapour Compression Refrigeration System Using Hc Refrigerant Mixtures For Water Chiller," International Journal Of Innovative Technology And Exploring Engineering, Vol. 8, No. 9, Pp. 2513-2517, 2019.
[18] K. Mahender And G. Babu, "Evaluation Of Vapour Compression Refrigeration System Using Different Refrigerants-A Review," International Journal Of Research2017, Vol. 4, No. 2, Pp. 1939-1943, 2017.
[19] J. P. Meyer, "The Performance Of The Refrigerants R-134a, R290, R404a, R-407c And R-410a In Air Conditioners And Refrigerators," In Thermal Sciences 2000. Proceedings Of The International Thermal Science Seminar. Volume 1, 2000: Begel House Inc.
[20] Y. Cengel And J. Cimbala, Ebook: Fluid Mechanics Fundamentals And Applications (Si Units). Mcgraw Hill, 2013.
[21] I. Faozan, "Analisis Perbandingan Evaporator Kulkas (Lemari Es) Dengan Mengunakan Refrigerant R-22 Dan R-134a," Jurnal Teknik Mesin (Jtm), Vol. 4, No. 3, P. 100, 2015.
[22] A. Handbook, "Ashrae Handbook–Fundamentals," Atlanta, Ga, Vol. 675, 2009.
[23] P. Linstorm, "Nist Chemistry Webbook, Nist Standard Reference Database Number 69," J. Phys. Chem. Ref. Data, Monograph, Vol. 9, Pp. 1-1951, 1998.
[24] V. Masson-Delmotte Et Al., "Climate Change 2021: The Physical Science Basis," Contribution Of Working Group I To The Sixth Assessment Report Of The Intergovernmental Panel On Climate Change, Vol. 2, No. 1, P. 2391, 2021.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Authors and Publisher
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The Authors submitting a manuscript do so on the understanding that if accepted for publication, copyright of the article shall be assigned to MACHINERY: Jurnal Teknologi Terapan as publisher of the journal. Copyright encompasses rights to reproduce and deliver the article in all form and media, including reprints, photographs, microfilms, and any other similar reproductions, as well as translations.Â
MACHINERY: Jurnal Teknologi Terapan and the Editors make every effort to ensure that no wrong or misleading data, opinions or statements be published in the journal. In any way, the contents of the articles and advertisements published in MACHINERY: Jurnal Teknologi Terapan are the sole responsibility of their respective authors and advertisers.
