Blowdown meaning of a boiler safety valve Definition of Blowdown: Blowdown is the difference between the opening pressure and the closing pressure of a safety valve. In mathematical terms: Blowdown = Opening Pressure – Closing Pressure Purpose of Blowdown: The blowdown is designed to ensure that once the safety valve opens, it remains open long […]
Boiler Safety Valve Heating Surface Area Calculation Quick Estimation of heating surface area = Π x D x L x N (circumferential area of tubes) D = dia. of tube, L = length of tube, N = total number of tubes This formula is used for estimating the heating surface area in heat exchangers or […]
MLC Certification Process Initial Certification 1. Gap Analysis Shipowners/managers conduct a gap analysis of ship and company policy against flag state regulations. Discuss any concerns with the relevant Recognized Organization (RO) or Inspector. 2. Documentation and Familiarization Develop documented procedures to comply with MLC 2006 requirements. Ensure the Master is familiar with MLC 2006 requirements […]
MLC Certification Process – with memorization technique MLC Certification Process Initial Certification Conduct gap analysis against flag state regulations Discuss concerns with Recognized Organization (RO) or Inspector Develop documented procedures for MLC 2006 compliance Request ship-specific Declaration of Maritime Labour Compliance (DMLC) Part I from Administration Complete DMLC Part II Submit DMLC Part I and […]
Name of Certificate Regulations Applications Validity Supplements Group A: SOLAS Safety Certificate Passenger Ship Safety Certificate SOLAS Ch. I, II, III, IV, and V For passenger ship 12 Months Form “P” Cargo Ship Safety Equipment SOLAS Ch. II, III, and V All cargo ship ≥ 500 GRT 5 Years Form “E” Cargo Ship Safety Radio […]
Tie Breakers vs. Circuit Breakers Tie Breakers Connect different sections of the electrical system on a ship. Typically found between the main and emergency switchboards. Allow power to be transferred between different parts of the system. Usually rated for higher currents than regular circuit breakers. Circuit Breakers Safety devices that protect electrical circuits from damage. […]
Statutory Certificates vs. Mandatory Certificates Definition and Purpose Statutory Certificates are those required by law with respect to safety and environmental protection that a vessel must comply with. These certificates are issued under the authority of a government and serve as evidence of a ship’s compliance with national and international maritime laws. Mandatory Certificates, on […]
Statutory Certificates for Vessels Note: Supplements to a particular certificate is written beside the certificate name with a hyphen. Hull and Exterior International Anti-fouling System Certificate Declaration on antifouling system International Load Line Certificate – No supplement International Load Line Exemption Certificate International Tonnage Certificate (1969) – No supplement Approaching the Vessel International Ballast Water […]
Carbon Intensity Indicator (CII) CII is an operational efficiency indicator that measures a vessel’s carbon intensity over time. It regulates the real-life CO2 emissions from ships and applies to cargo, RoPax, and cruise vessels above 5,000 GT trading internationally from January 1, 2023[1]. Key Features Measures CO2 emissions in grams per cargo-carrying capacity and nautical […]
Carbon Intensity Indicator: Carbon Intensity Indicator (CII) or Carbon intensity indicator is an in-service/operational efficiency indicator that measures a vessel’s carbon intensity over time. The CII regulates the operational or real life of CO2 emissions from ships. It is based on the annual fuel oil consumption, and from 1st January 2023, all ships will have […]