MENGOPTIMALKAN PROSES PENYERAPAN AMMONIA DENGAN AIR SEBAGAI PENYERAP

Altitan, Muhammad Sampurna and Rahim, Hafidz Akbar Faridzi (2023) MENGOPTIMALKAN PROSES PENYERAPAN AMMONIA DENGAN AIR SEBAGAI PENYERAP. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Laporan ini menyajikan desain dan optimalisasi sistem amonia-air untuk berbagai aplikasi pendinginan dan pemanasan di industri kimia. Penggunaan perangkat lunak Aspen Plus untuk mensimulasikan sistem disorot, karena secara akurat memodelkan perilaku campuran dengan mempertimbangkan faktor-faktor seperti suhu, tekanan, konsentrasi, dan hubungan kesetimbangan. Prinsip kerja sistem dijelaskan, termasuk pemanasan campuran amonia/air di generator, pendinginan dan pencairan uap refrigeran, dan proses penyerapan di penyerap. Model termodinamika Peng-Robinson digunakan untuk memprediksi perilaku sistem, khususnya spesies ionik dalam fase cair sebagai fungsi dari kelarutan dan temperatur CO2. Laporan tersebut menyajikan hasil dan pembahasan pengembangan model. Ini termasuk diagram Txy, desain penyerap amonia-air, kesetimbangan, dan grafik model berbasis laju, jenis pengepakan yang digunakan, dan pengaruh laju aliran cairan yang berbeda dan diameter kolom pada kinerja sistem. Analisis ekonomi dilakukan dengan mempertimbangkan belanja modal (CAPEX) dan belanja operasional (OPEX). Estimasi biaya untuk kolom absorpsi dan penukar panas disediakan, bersama dengan perhitungan kebutuhan air dingin dan konsumsi listrik. Laporan diakhiri dengan desain pabrik yang optimal untuk penyerap amonia-air berdasarkan temuan dan analisis. Untuk mencapai sasaran kinerja yang dimaksud sambil mempertimbangkan efektivitas biaya, parameter operasi, jenis pengepakan, diameter kolom, dan tinggi diputuskan. Secara keseluruhan, penelitian ini menawarkan saran untuk meningkatkan kinerja dan efisiensi sistem amonia-air dalam berbagai aplikasi sambil memberikan informasi mendalam tentang desain, simulasi, dan elemen ekonomi dari sistem tersebut.
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This report presents the design and optimization of an ammonia-water system for various cooling and heating applications in the chemical industry. The use of Aspen Plus software for simulating the system is highlighted, as it accurately models the behavior of the mixture considering factors such as temperature, pressure, concentration, and equilibrium relationships. The working principles of the system are described, including the heating of the ammonia/water mixture in the generator, the cooling and liquefaction of the refrigerant vapors, and the absorption process in the absorber. The eNRTL thermodynamics model is utilized to predict the behavior of the system, specifically the ionic species in liquid phases as a function of CO2 solubility and temperature. The report presents the results and discussions of the model development. It includes Txy diagrams, the design of the ammonia-water absorber, equilibrium, and rate-based model graphs, types of packing used, and the effects of different liquid flow rates and column diameters on the system's performance. Economic analysis is conducted, considering capital expenditures (CAPEX) and operational expenditures (OPEX). The cost estimation for the absorption column and heat exchanger is provided, along with the calculation of chill water requirements and electricity consumption. The report finishes with the optimal plant design for the ammonia-water absorber based on the findings and analyses. To accomplish the intended performance goals while taking cost-effectiveness into account, the operating parameters, packing type, column diameter, and height are decided upon. Overall, the study offers suggestions for improving the performance and efficiency of an ammonia-water system in a variety of applications while delivering insightful information about the design, simulation, and economic elements of such a system.

Item Type:	Thesis (Other)
Subjects:	T Technology > TP Chemical technology T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction
Divisions:	Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Sampurna Altitan
Date Deposited:	04 Aug 2023 03:56
Last Modified:	04 Aug 2023 03:56
URI:	http://repository.its.ac.id/id/eprint/102790

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