Optimasi Desain Impeller Sea Water Pump dengan Parameter Distribusi Blade Angle pada Daerah Shroud Menggunakan Pendekatan Computational Fluid Dynamics (CFD)

Nugraha, Sasmita Adi (2019) Optimasi Desain Impeller Sea Water Pump dengan Parameter Distribusi Blade Angle pada Daerah Shroud Menggunakan Pendekatan Computational Fluid Dynamics (CFD). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pompa merupakan suatu peralatan yang bertujuan mengonversi energi mekanik yang berasal dari prime mover menjadi energi kinetik kemudian energi tekan atau hidrostatik untuk dapat memindahkan fluida cair. Dalam proses desain dan prediksi perilaku fluida sangat sulit untuk ditebak sehingga diperlukannya trial and error. Namun trial and error secara fisik memakan waktu yang tidak sedikit serta biaya yang mahal dikarenakan perlunya modifikasi secara fisik, oleh karena itu dilakukannya dengan menggunakan simulasi Computational Fluid Dynamic (CFD). Peggunaan metode ini dapat meminimalisir pengeluaran biaya yang signifikan karena tidak diperlukannya modifikasi secara fisik. Penulis melakukan penelitian optimasi desain impeller sea water pump dengan simulasi variasi distribusi blade angle pada daerah shroud menggunakan pada kapasitas 1000, 1020, 1040, 1060, dan 1080 m3/h. Simulasi ini bertujuan untuk mengetahui nilai efisiensi dan performa optimasi impeller variasi blade angle daerah shroud jika dibandingkan dengan impeller asli atau circular axial, serta bagaimana konfigurasi impeller blade angle yang paling optimum. Metode yang digunakan dalam simulasi ini adalah metode simulasi CFD. Hasil optimasi impeller ini antara lain mengalami kenaikan performa head sebesar 20.66% dan efisiensi impeller naik sebesar 9.3%. Impeller asli atau circular axial memiliki efisiensi impeller tertinggi saat kapasitas 1080 m3/h yaitu 76.81% sedangkan Impeller dengan variasi distribusi blade angle pada daerah shroud memiliki efisiensi impeller tertinggi terletak pada blade angle 50° saat kapasitas 1000 m3/h yaitu 84.69%. Keadaan paling optimum pada impeller dengan distribusi blade angle daerah shroud ialah pada blade angle 50° saat kapasitas 1000 m3/h. ================================================================================================
Pump is an equipment which has an aims to convert mechanical energy sourced from prime movers become kinetic energy then hydrostatic energy to be able moving liquid fluid. In the process of design and prediction of fluid characteristic, it is very difficult to be predicted so it need trials and error. However, trial and error physically takes a lot of time and costs are expensive due to need for physical modification. Therefore it is done using the Computational Fluid Dynamic simulation (CFD). This method can minimize significant costs because there is no need for physical modification. The author made an optimization study on the design of sea water pump impellers by simulating variations distribution of blade angles in shroud areas using capacities of 1000, 1020, 1040, 1060, and 1080 m3/h. Purpose of this simulation is to determine the efficiency value and optimization performance of impeller with blade angle on shroud areas which is compared with the the original impeller or circular axial, along as how the configuration of most optimum impeller with blade angle. The simulation using CFD simulation method. The results of this impeller optimization are increasing head performance by 20.66% and efficiency up to 9.3%. The original impeller or circular axial has the highest efficiency value is 76.81% which is happened when the capacity is 1080 m3/h while the impeller with the variation of blade angle distribution in the shroud areas has the highest efficiency value is 84.69% which located at blade angle 50° when the capacity is 1000 m3/h. The most optimum situation for impellers with the blade angle distribution in the shroud areas is on blade angle 50° when the capacity is 1000 m3/h.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSSP 621.69 Nug o-1 2019
Uncontrolled Keywords:	Impeller, Optimization, Blade Angle, CFD, Efficiency
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ903 Pumping machinery. T Technology > TJ Mechanical engineering and machinery > TJ910 Electric pumping machinery V Naval Science > V Naval Science (General)
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Sasmita Adi Nugraha
Date Deposited:	06 Dec 2021 02:51
Last Modified:	06 Dec 2021 02:51
URI:	http://repository.its.ac.id/id/eprint/61640

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