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In oil based systems, an insufficient amount of cooling medium or inefficient flow of oil through the heater can cause the heater to become fouled. Seawater coolers can often become fouled due to marine life present in the water or due to galvanic corrosion if the correct safety measures are not taken to prevent such occurrences.
The distillation system for boiler feedwater at this time was usually termed an evaporator, partly to distinguish it from a separate system or distiller used for drinking water. Separate systems were often used, especially in early systems, owing to the problem of contamination from oily lubricants in the feedwater system and because of the ...
Thermal treatment is a highly effective strategy for the control of zebra mussels (McMahon et al. 1995). Thermal treatment may include retrofitting a closed loop system to recirculate the heated water to the sea chest or the addition of a second sea chest system, allowing engine cooling water to be discharged through the idle sea chest.
Cold ironing permits emergency equipment, refrigeration, cooling, heating, lighting and other equipment to receive continuous electrical power while the ship loads or unloads its cargo. Shorepower is a general term to describe supply of electric power to ships, small craft, aircraft and road vehicles while stationary.
Sea water air conditioning (SWAC), also known as ocean water cooling, is an alternative cooling system that uses the deep cold seawater as the chilling agent for a closed-loop fresh water distributed cooling system. It is one type of deep water source cooling. Once installed, SWAC systems typically operate at approximately 15% of the power ...
Water is inexpensive, non-toxic, and available over most of the earth's surface.Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing efficient heat transfer over distance with low rates of mass transfer.
Fresh water aboard Queen Mary 2 is supplied by three Alfa Laval multiple effect plate (MEP) evaporators, each with a capacity of 630,000 litres (170,000 US gal) per day. [53] The plants' energy is supplied primarily by steam and cooling water from the ship's gas turbines and diesel engines, or if needed by steam from the ship's two oil-fired ...
A Naval Inactive Ship Maintenance Facility (NISMF) is a facility owned by the United States Navy as a holding facility for decommissioned naval vessels, pending determination of their final fate. All ships in these facilities are inactive, but some are still on the Naval Vessel Register (NVR), while others have been struck from the register.