What is draft survey|How to weigh a ship|Life at sea|Merchant navy life|Mallu sailor's life at sea| скачать в хорошем качестве

What is draft survey|How to weigh a ship|Life at sea|Merchant navy life|Mallu sailor's life at sea|

Friends in this video we discuss more in details about draft survey A draft survey is a calculation of the weight of cargo loaded or unloaded to or from a ship from measurents of changes in its displacement. The technique is based on Archimedes' principle. The procedure is standardized by the United Nations Economic Commission for Europe for the measurement of coal cargoes. Procedure The draft survey is performed by reading the ship's draft on the draft markings at six standard points on the hull: forward, midships and aft on both port and starboard sides. Corrections for factors such as trim, water density and non-cargo weight changes are made before calculating the cargo weight change. With draft survey we measures the initial weight (displacement) of the ship and it measures the final weight (displacement) of the ship after loading. The difference plus all the weights that were taken out (like ballast) will be the cargo loaded. The only difference between weight measurement in case of truck and ship is that for later the calculation is not that simple. So in this post I will discuss about how to go about measuring the cargo quantity with draft survey. 1. Why Draft survey ? On tankers, the measurement of cargo quantity loaded is simple. We know the density of the cargo and we know the volume. It is easier to know the weight of the cargo loaded. But with cargoes like coal, we cannot measure the weight by just measuring the the height of the hold to which cargo is loaded. This is because unlike liquids, solid cargoes would not take the shape of the hold. Calculating the cargo loaded with draft survey is the most appropriate way. But it isn’t only with solid cargoes. Sometimes we have to measure the cargo quantity of liquids by draft survey. One such cargo is Mollasses loaded on chemical tankers. This cargo has air in it and thus the density of this cargo is not uniform. Calculating the way we calculate the weights for other liquids will give wrong quantity. Draft survey is the answer in this case too. So let us see how we need to go about draft survey. 2. Basics of Draft survey With draft survey calculations, all we want to know is the difference in ship’s arrival weight (Displacement) and departure weight (displacement). Let us say we have these figures On Arrival Displacement: 20000 T Cargo: 0 Ballast: 6000 T Other weights : 1000 T On Departure Displacement: 50000 T Cargo:  ??? Ballast: 500 T Other weights : 1000 T The difference in displacement is 30000 T.  Out of this 5500 T of ballast was removed and some cargo was loaded at the port. It is simple calculation to know the quantity of the cargo loaded which is 35500 T. ***Queries solved***************** -Draft survey -Bulk carrier draft survey calculation -Chief officer in merchant navy -Cargo loading procedure -Trimming procedure -Final and intermediate draft survey -Ship and port authority -Merchant navy -Ships and ports -What is the procedure for mooring -How a ship is getting alongside jetty -Merchant navy officers and crew detailed jobs -Mooring accidents at sea -What are the jobs of a chief officer -Tug operations -Why merchant navy life is difficult -Tug accidents with ship -Big ships and accidents -Mooring and ropes used for mooring -Hazards of mooring operations -How anchor is used by ships -Anchoring procedures -Mooring station arrangements on ships -ships crew job at sea -Ship break arrangements -Who make more money in merchant navy -How to join merchant navy -what are the benefits of joining merchant navy -what are the disadvantages of merchant navy -Joining merchant navy after 10th -Merchant navy videos in malayalam -Mallu kappithan **What is discussed in my channel** Ship related videos in Malayalam Ship engine videos in Malayalam Ship accidents videos in Malayalam Ship accident in Suez canal in Malayalam Ship storm accident in Malayalam Abandon ship in Malayalam Ship emergency videos in Malayalam Ship Fire videos in Malayalam Malayalam Kappithan Stories Travel stories by Mallu kappithan Merchant navy life Merchant navy issues Merchant navy entry procedures Merchant navy jobs and procedures Merchant navy scams and job issues Daily life of merchant navy advantages of merchant navy disadvantages of merchant Navy #Merchantnavy #lifeatsea #Chiefofficer #Merchantnavy #Mooring #Draftsurvey #cargoship #cargoatsea #Containers #mallusailor #chaseyourdreams #shipvidoes #kappithan #shipandport ************************************ For Business Enquiries, Email me at jaamzis@gmail.com/whatsapp +918848639912 *** SUBSCRIBE TO MY CHANNEL: ** https://www.youtube.com/journeysofkap... ************************** Feel Better by Roa Music   / roa_music1031   Creative Commons — Attribution 3.0 Unported — CC BY 3.0 Free Download / Stream: https://bit.ly/feel-better-roa-music Music promoted by Audio Library    • Feel Better – Roa Music (No Copyright Music)   ––––––––––––––––––––––––––––