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ITS » Paper and Presentation » Teknik Permesinan Kapal Posted by dee@its.ac.id at 01/10/2013 09:11:02 • 1891 Views
ANALYSIS OF GRAVING DOCK DEPLETION
TIME BASED ON ROTATION CASE STUDY IN
PT. BEN SANTOSA SURABAYA
Author : FEBRIYANI, NEVI ( 6308030035 )
ABSTRAK
Pompa merupakan mesin konversi energi dari bentuk kalor panas bahan
bakar atau listrik menjadi energi kinetik atau potensial. PT. Ben Santosa yang
bergerak di bidang perawatan dan perbaikan kapal pompa digunakan untuk
mengosongkan graving dock. Pengosongan ini mengoperasikan empat buah
pompa yang bekerja secara paralel dan digerakkan dengan dua buah mesin diesel
menggunakan sistem transmisi V belt. Penggunaan pompa ini dirasa kurang
efektif terhadap waktu karena pengosongan dok memerlukan waktu lebih dari 8
delapan jam.
Pemborosan waktu tersebut dapat dikurangi dengan peningkatan waktu
pengosongan graving dock yang lebih efektif. Peningkatan waktu tersebut sejalan
dengan meningkatnya debit melalui pengendalian putaran sistem transmisi rotor
pompa. Perhitungan yang digunakan berdasarkan spesifikasi teknis dan existing
condition. Spesifikasi teknis yang diketahui adalah putaran pompa maksimum
1450rpm putaran mesin diesel 3000rpm. Debit pompa 450m3jam daya pompa
185KW sedangkan head pompa 10m.
Hasil perhitungan terhadap kasus yang ada selama pengoperasian pompa
pada graving dock menggambarkan peningkatan waktu pengosongan dapat
dilakukan dengan modifikasi. Modifikasi dilakukan pada puli motor dan puli
pompa masing-masing berdiameter 205mm dan 225mm. Peningkatan debit telah
dicapai lebih tinggi 08m3dt dari existing condition sehingga waktu
pengosongan dok menjadi 695jam. Peningkatan waktu tersebut telah mencapai
32 dari waktu existing condition 1023jam.
ABSTRACT
The pump is a energy conversion machine from heat of fuel or electricity
into kinetic or potential energy. PT. Ben Santosa engaged in maintenance and
repair of boat pump are used for emptying the graving dock. Discharging
operates four pumps working in parallel and driven by two diesel engine use a V
belt transmission system. Use of this pump is less effective with time because the
emptying of the dock takes more than 8 eight hours.
Waste of time can be reduced with increased time emptying the graving
dock is more effective. Increased time in line with rising discharge through the
control of rotation transmission system rotor pump. The calculations were used
based on technical specifications and existing condition. Technical specifications
are known is 1450rpm maximum pump rotation diesel engine speed 3000rpm.
Discharge pump 450m3hr pump power 18.5KW while the pump head of 10m.
The results calculation about case for the operation of the graving dock
pumps reflects increased emptying time can be done with modifications.
Modifications performed on the motor pulley and pump pulleys each of diameter
205mm and 225mm. Increased discharge has been achieved is higher 0.8m3s of
the existing condition so that the dock be emptying time 6.95hours. Increasing the
time has reached 32 of the existing condition of time 1023hours.
Keywords:
Volume Dock; Diameter Pulleys; Engine Rotation; Rotation Pumps; And Rate Of Flow Pump
Subject
: Teknik maritim
Contributor
Heroe Poernomo, ST, MT
Date Create
: 16/08/2011
Type
: Text
Format
: pdf
Language
: Indonesian
Identifier
: ITS-paper-63021130002190
Collection ID
: 63021130002190
Call Number
: 623.8 Feb a
Source Presentation of Marine Engineering, 623.8 Feb a, 2013
Coverage ITS Community
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