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Model Pendekatan Untuk Kasus Perpindahan Panas Pada Sistem Pendinginan Motor Di Unit Electric Submersible Pump Sumur Produksi

Motor operating temperature at wells equipped with Electric Submersible Pump (ESP) need to be monitored to maintain ESP performance run life. Not all producer wells equipped with temperature sensor, so it considered necessary to build mathematic model to estimate motor operating temperature. Model of heat transfer to predict motor operating temperature is developed based on empirical equation method and based on k- turbulen flow that solved using Semi Implicit Method for Pressure-Linked Equations (SIMPLE). Parameters and variables was obtained from producer wells include fluid rate, water cut, viscosity, specific gravity, operating temperature, ampere and voltage. Procedure to calculate viscosity is ASTM D-88 and procedure to calculate specific gravity is ASTM D-5002.
From 18 wells data obtained from the field, calculated reynolds numbers indicate turbulent flow regime with reynold numbers more than 4,000. Nusselt number were calculated using multiple linear regression with result of Nu = 0.06 * Re0.65 * Pr0.36 with error of 1.3%. k- turbulen flow model with forced convection was used to determined temperature profile along the motor body. Temperature profile obtained from simulation have 1.9% of standard deviation from average motor temperature from sensor measurement.
The conclusion from the research showing that empirical approach by using specific constants to predict Nusselt number can be used to predict more accurate heat transfer coefficient with error 1.3%. Higher water cut resulting lower fluid velocity to achieve motor operating temperature below motor limit temperature with fluid velocity 0.3 m/s for fluid with water cut 95%.

Keywords: annuli flow, empirical approach for nusselt number, forced convection, heat transfer, turbulent fluid flow

Ketersediaan
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Perpustakaan Universitas Riau 10 13. 219 (0006)
10 13. 219 (0006)
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
10 13. 219 (0006)
Penerbit
Pekanbaru : Universitas Riau – Pascasarjana – Tesis Teknik Kimia.,
Deskripsi Fisik
xv, 93 hlm.; ill.; 29 cm
Bahasa
Indonesia
ISBN/ISSN
-
Klasifikasi
10 13. 219 (0006)
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
PASCASARJANA (MAGISTER) TEKNIK KIMIA
Info Detail Spesifik
-
Pernyataan Tanggungjawab
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Tidak tersedia versi lain

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