Chemical Tankers / Day 4 / Day 4 Topic 2 Cargo Quantification
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Cargo Calculations
Cargo Specific Requirements:
Latex: Tanks filled to 100% to eliminate O2 and consequent residues on deck head. Pressure must be monitored, some “bleeding” may be necessary
Propylene Oxide: Limited filling due to high expansion rate. The use of PO coolers, High Velocity P/V valves and higher integral strength may resolve the problem and overcome the limitations
Cargo Calculations
Cargo Documents:
If you are Junior Officer, you should not be involved in signing cargo documents
If anyone presents you with documents from shore and requests your signature, do NOT sign them – notify the Chief Officer or
Master.
Self assessment Task
You are scheduled to load a cargo of 2000 mt Phenol, +/- 5% MOLOO. Liter weight is 0.8720 @15 deg C, Corr factor 0.00090 pr deg C.
You have capacity for the full option.
After complete loading you observe: |
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Cargo temp = 28 deg C |
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Loaded Volume = |
2354 m3 |
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Surveyor present you with B/L fig = |
1982.026 m.t. |
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Total time to load |
5 hrs 48 mins |
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Questions
How many tons did you load?
What was your loading rate in tons?
List ALL documents you would present in this case.
Show all your calculations and reasoning.
Answers:
Self Review Answers.
NOR for |
2100 mt |
L/W @ 28C = |
0.8603 |
Loaded tonnage = |
2025.146 mt |
Load Rate = |
349 mt/hr |
Discrepancy Protest for |
43.120 mt |
Short Loading Protest for 74.854 mt
Excercise
Cargo Calculations
Open Book Exam