A rotary cup burner utilizes centrifugal force for atomization & propagation of fuel oil inside the furnace.This system is having : Figure 1 – Rotary Cup Burner Primary/Ignition burner The Ignition burner,as its name implies initiates the ignition and needs an external source for the purpose.Two high voltage electrodes with precise gap in between,are fitted …
CO2 Total Flooding System Fixed fire extinguishers on board are installed to fight large fires that require complete evacuation of the area engulfed by the fire. CO2 total flooding system is predominantly installed on board cargo vessels to deal with large fires in Engine room as well as in Cargo holds. Advantages of using CO2 …
Fixed Fire Extinguishing System for Machinery Spaces Read More »
Works on the principle of vapour compression refrigeration system Refrigerant & Temperature Settings Refrigerant(typically used on board contemporary vessels): R 407C Set temperatures for cold rooms (Meat room & Fish room): -18 C Set temperature for chilled room (Vegetables room): 4 C Working Principle & System Components The provision refrigeration plant on board works on …
Cavitation & NPSH are widely talked about terms associated with centrifugal pumps Cavitation & NPSH these two terms are closely interrelated. NPSH is the cause & Cavitation is the effect. NPSH NPSH stands for Net Positive Suction Head. To put it simply – it is the resultant pressure energy or head available at the pump’s …
Water carry-over is the most significant factor for cylinder liner wear & cold corrosion Combustion air (Scavenge air,Charge air) drawn in from the surrounding by the Turbocharger passes through the Air Cooler for cooling down.This cooling down increases density as well as mass of the air supplied to the engine cylinders and ensures that there …
Prevention of Air Pollution from Ships Adopted to contain air pollution from ships emission Entry into force 19 May 2005 Principal focus areas I. Regulation 12: Ozone-depleting substances(ODS) II. Regulation 13: Nitrogen Oxides(NOx) III. Regulation 14: Sulphur Oxides(SOx) IV. Regulation 15: Volatile Organic Compounds(VOC) V. Regulation 16: Shipboard incineration VI. Regulation 18: Fuel Oil Quality VII. …
Prevention of Pollution by Garbage from Ships Entry into force : 31 December 1988. Under MARPOL Annex V,garbage includes all kinds of food,domestic and operational waste,all plastics,cargo residues,incinerator ashes,cooking oil, fishing gear,and animal carcasses generated during the normal operation of the ship and liable to be disposed of continuously or periodically. The Annex V requires …
Prevention of Pollution by Sewage from Ships Entry into force: 27th September 2003. A revision was adopted on 1st April 2004 and entered into force on 1st Aug 2005. What it deals with Contains a set of regulations to control the discharge of sewage into the sea from ships. Defines the ships’ equipment and systems for …
Regulations for the Prevention of Pollution by Oil Entry into force 2nd October 1983 Principal issues addressed I. Frequency & procedure for mandatory survey II. Requirement for International Oil Pollution Prevention Certificate III. Requirement for record keeping: Oil record book (Part I: Machinery space operation, Part II: Cargo space operation) IV. SOPEP V. Criteria for oil …
Fixed Fire Fighting System for Cargo Holds CO2 flooding system for cargo hold: Description & Operation CO2 flooding in cargo holds,in case of a fire,involve the followings: The figure below represents schematic diagram of a typical system installed on board. Fig.1 CO2 flooding system for cargo holds In reference to the Fig. 1. In normal …