Wood Mackenzie’s Post

📍#DidYouKnowThat📍 ✅ Operating an #LNG cargo pump ⛽ at, or close to, its design flow level 💧 is in the best interests 🎯 of the pump lifespan and operating performance 📊. ✅ However, operating the pump at flow rates that are less 📉 than this cannot be avoided 🚫. This is particularly the case when the shore receiving facility cannot accept 🛑 the rated flow and when approaching the stripping level or during stripping. ✅ However, it should be remembered 💡 that it is better to operate one pump at the design flow 🎯rather than two 2️⃣ pumps running at 50% flow ❌. ✅ The below photo 👇 shows the cargo and stripping pumps ⛽ inside an #LNG ship membrane type. 📷: LNG shipping knowledge #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ Despite the #LNG very low temperature 💧-1️⃣6️⃣0️⃣°C inside the cargo tanks versus the high ambient temperature outside 🔥 +3️⃣0️⃣°C, the #LNG ship's cargo tanks' insulation plays a vital role 🎯 to keep the boil-off gas 💭 to minimum 📉. ✅ The boil-off gas 💭 rate in the recent cargo containment is about 0️⃣,0️⃣7️⃣% per day 🎯 of the total volume. A cargo of 1️⃣7️⃣0️⃣K m³ LNG has a BOG 💭 of 1️⃣1️⃣9️⃣ m³ per day ONLY ! 📷 : GTT #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ The insulation around the #Moss type LNG Cargo tank is part of the leak 💧 protection system 🚧. ✅ The insulation is fitted 🎯 such that there is a space between the tank material and the insulation. This space is known as 👉 "The annular space". ✅ In the event of a leak of vapour from 🚨 the tank it will be transported around the annular space to the gas detector 🔴 by a constant flow of #N2, enabling the leak to be detected quickly 🎯. ✅ In the event of a liquid leak 🚨 the insulation acts as splash back 🚧, directing the liquid into the drip tray located beneath the tank. 📷: LNG shipping knowledge #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ The insulation around the #Moss type LNG Cargo tank is part of the leak 💧 protection system 🚧. ✅ The insulation is fitted 🎯 such that there is a space between the tank material and the insulation. This space is known as 👉 "The annular space". ✅ In the event of a leak of vapour from 🚨 the tank it will be transported around the annular space to the gas detector 🔴 by a constant flow of #N2, enabling the leak to be detected quickly 🎯. ✅ In the event of a liquid leak 🚨 the insulation acts as splash back 🚧, directing the liquid into the drip tray located beneath the tank. 📷: LNG shipping knowledge #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ During the laden voyage, the #LNG ship's movement on passage 🌎 and the ingress of external heat 🔴 through the tank insulation generates convection currents in the bulk cargo mass 🔵. This causes the relatively warm LNG 📈 to rise to the surface, producing boil-off gas that becomes available as a supplementary fuel source ⛽ for the ship's power plant 🏭. ✅ This can account for 👉 0️⃣.0️⃣7️⃣-0️⃣.1️⃣5️⃣ % of the ship's cargo volume per day depending on 1️⃣ the cargo containment insulation and the 2️⃣ vessel's age. ✅ The cargo boil-off is either reliquefied 💧 and returned to the tanks, or burned 🔥in the ship's engines/boilers/GCU. ✅ #Methane being the predominant component of LNG, and is the liquefied gas cargo that is permitted to be used as fuel ⛽ in this way. 📷: LNG shipping knowledge #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ Despite the #LNG very low temperature 💧-1️⃣6️⃣0️⃣°C inside the cargo tanks versus the high ambient temperature outside 🔥 +3️⃣0️⃣°C, the #LNG ship's cargo tanks' insulation plays a vital role 🎯 to keep the boil-off gas 💭 to minimum 📉. ✅ The boil-off gas 💭 rate in the recent cargo containment is about 0️⃣,0️⃣7️⃣% per day 🎯 of the total volume. A cargo of 1️⃣7️⃣0️⃣K m³ LNG has a BOG 💭 of 1️⃣1️⃣9️⃣ m³ per day ONLY ! 📷 : GTT #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ For the #LNG ship 1️⃣ #Membrane type 🚢, the Interbarrier/Insulation spaces 🚧 for the cargo containment should be inerted 📉 with a suitable 👉 dry inert gas 💭 provided by a shipboard Nitrogen generation system 🔋, or by shipboard storage (Old ships) 🏢 generally 👉 liquid N2 and sufficient for normal consumption for at least 30 days 📅. ✅ Whereas for 2️⃣ #Moss type ⛴, the Hold spaces 🔵 may be filled with 👉 dry air 💭 provided that the ship maintains a stored charge 🏢 of an Inert Gas (eg N2) or is fitted with an inert gas generation system 🏭. 📷: Research Gate #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping 

📍#DidYouKnowThat📍 ✅ LNG is a cryogenic liquid ❄ which is loaded at temperature below 📉 -1️⃣5️⃣9️⃣ degree Celsius. Normal steel loading arms or rubber flexible hoses cannot withstand ❌ such cryogenic temperatures. Thus, these are usually made of special low temperature alloy 🎯 which has a very good thermal expansion and contraction properties 📊. ✅ The picture 👇 shows Loading arms / hand arms which any LNG terminal 🏢 is using for Loading/Discharging LNG Cargo 💧. 📷: seacrew #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping

🚢 LNG Carriers Types LNG carrier is a specialized vessel designed for transporting liquefied natural gas (LNG). These ships play a crucial role in the global energy supply chain. 🛢️Cargo Capacity: LNG carriers can carry between 125,000 cubic meters (cum) to 260,000 cum of LNG. The most popular size falls within the range of up to 180,000 cum. ✨ Membrane:Type These carriers feature a multi-layered membrane system that provides excellent insulation and minimizes leaks. They're considered the safest and most efficient choice. ✨Moss Type: With spherical tanks supported by an internal framework, Moss-type carriers can carry more cargo. However, they're less safe and efficient than membrane-type vessels. ✨ Self-Supporting Prismatic Type: These carriers have large, prism-shaped tanks supported by the ship's hull. While they can carry substantial cargo, they're less safe and efficient than membrane-type carriers. ✨Semi-Membrane Type: A hybrid of membrane and prismatic systems, these carriers strike a balance between safety and capacity. #LNG #LNGCarries #Animation #Transport #Energy

📍#DidYouKnowThat📍 ✅ Arriving at the 👉 loading terminal to load the first 1️⃣ cargo after refit for an LNG ship 🏭, or when repairs require the vessel to be gas free 🏭, the cargo tanks will be inert 📈 at ambient temperature. ✅ After the cargo system has been purge-dried and gassed up 🔴, the main lines and tanks must be cooled down 📉 before loading can commence. The cooldown operation ❄ follows immediately after the completion of gas filling, using LNG supplied from the terminal. ✅ The rate of cooldown is limited 🚫 for the following reasons : 👉 To avoid excessive pump tower stress ❌. 👉 Vapour generation must remain within the capabilities of HD compressors 🎯 to maintain the cargo tanks pressure. 👉 To remain within the capacity of the N2 generation system 🎯 to maintain the IBS/IS (Membrane type) and the Annular space (Moss type) at the required pressure. 📷: GTT #lng #lngindustry #lngshipping #lngbunkering #gtt #mossdesign #naturalgas #shipping