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The Linked Ship-Shore ESD that I am referring to is the Ship-Shore-Linked SSL Emergency Shut Down System (SSL ESD) used on gas tankers. I have met with this system on gas tankers. However, I have not encountered it in oil or chemical tankers. Some terminals provide extension pendants for emergency stops, which I have experienced…
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I haven’t encountered an MGO pump powered by pneumatics before; this was my first time seeing one. Previously, I’ve only used electric motor-driven MGO flushing pumps. These pumps get their power from the ESB and are used to supply MGO in case of a blackout, ensuring that the standby generator can be started. The pneumatic…
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ERCS is designed to reduce NOx emissions in exhaust gases according to the IMO Tier III requirements that came into effect after January 2016. There are various technologies for reducing NOx, including EGR (Exhaust Gas Recirculation), Selective Catalytic Reduction (SCR), Water in Methanol (LGIM-W), and Low Pressure Gas Engine (ME-GA). Personally, I have only encountered…
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Tacho System In the previous sections, we discussed the MPC, Hydraulic Power Supply (HPS) Unit, and Hydraulic Cylinder Unit. The MPC units handle control and monitoring based on their respective functions, the HPS provides the necessary hydraulic oil pressure for control functions, and the HCUs manage exhaust valve operation, fuel injection, and cylinder lubrication. To…
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Cylinder Lubricator The cylinder lubricator is mounted on the distribution block of the hydraulic cylinder unit. It adjusts the lubrication oil flow based on the cylinder lubrication rate sent by the CCU, controlling the on/off cycles and amount of lubrication oil delivered to the cylinder units. The lubricator operates using the system’s hydraulic oil. Hydraulic…
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Hydraulic Cylinder Unit (HCU) The Hydraulic Power Supply Unit supplies hydraulic oil to the HCU through double-wall hydraulic pipes. If single-wall pipes are used instead of double-wall pipes, the hydraulic pipes are typically housed within a casing. There are systems with pressures of 300 bar as well as systems with 200 bar. The Hydraulic Cylinder…
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Hydraulic System The ME engine’s hydraulic system is an electronically controlled mechanical hydraulic system. The engine control system manages the engine’s fuel oil injection and exhaust valve operation using hydraulic power. The system uses lubricating oil for hydraulic oil and the Hydraulic Power Supply Unit (HPS) provides the necessary hydraulic oil. Hydraulic Power Supply Unit…
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Emission Reduction Control System (ERCS) ERCS က January 2016 နောက်ပိုင်း အသက်ဝင်လာတဲ့ IMO TIER III requirement အရ Exhaust gas တွေမှာ ပါဝင်တဲ့ NOx ကို လျော့ချဖို့ အတွက် ဖြစ်ပါတယ်။ NOx ကို လျော့ချဖို့ EGR ( Exhaust Gas Recirculation)၊ Selective Catalytic Reduction (SCR)၊ Water in methanol (LGIM-W)၊ Lowe pressure gas engine (ME-GA) စတဲ့ နည်းပညာ အမျိုး မျိုးရှိတဲ့အထဲ ကျွန်တော့်အနေနဲ့ Selective Catalytic Reduction…
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Tacho System ရှေ့အပိုင်းတွေမှာ MPC အကြောင်း၊ Hydraulic power supply (HPS) Unit နဲ့ Hydraulic Cylinder Unit အကြောင်းကို ပြောခဲ့ပြီးပါပြီ။ MPC တွေက သူတို့ သက်ဆိုင်ရာ function အလိုက် Control and monitoring လုပ်မယ်၊ HPS က control function အတွက် လိုအပ်တဲ့ Hydraulic oil pressure ကို ပံ့ပိုးမယ်၊ HCU တွေက Cylinder Unit အလိုက် Exhaust valve operation၊ Fuel injection နဲ့ cylinder lubrication တို့ ကို လုပ်ဆောင်မယ်ဆိုတာတွေ ဖော်ပြခဲ့ပါတယ်။…
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Cylinder Lubricator သူက Hydraulic cylinder unit ရဲ့ Distribution block မှာ တွဲလျက် တပ်ဆင်ထားပါတယ်။ CCU က ပေးပို့တဲ့ Cylinder Lubrication rate အတိုင်း Lubricator ကို အဖွင့်အပိတ် အကြိမ်ရေ အတိုးအလျော့ လုပ်ပြီး လိုချင်တဲ့ Lubrication oil ပမာဏကို Cylinder unit တွေဆီ ပို့ပေးပါတယ်။ Lubricator on/off လုပ်ဖို့အတွက် System hydraulic oil ကို အသုံးပြုထားပါတယ်။ Hydraulic pressure က Lubricator ရဲ့ Spring အားကိုတွန်းကန်ပြီး Injector ကတဆင့် Cylinder lubricating oil တွေကို…
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