All About Marine Air Conditioning

In present time, air conditioning system becomes a part of day-to-day life. We can’t get superior food, market item and livelihood except that. In food transport and storage, air conditioning system is really important. The air conditioning of passenger ships as well as cargo ships is not too long ago developed and is used by a lot of companies of the planet.

It may possibly be noted that the general principle of air conditioning which apply to lands installations are also applicable to marine, supplied all of the variables affecting the constructions and operation of a ship are given proper circumstances. The system should be flexible to work below various climates, ranging from extreme hot to extreme cold because the ship may well pass through region of diverse climates. This should be taken into account for deciding on the equipment for outside design conditioning.

In case of cargo ships, the refrigeration and air-conditioning system should able to present any temperature between -23.5 degree centigrade and 12.5 degree centigrade. The reciprocating compressor with R-12 as refrigerant are universally employed. It might be noted that R-22 is not recommended because of its important oil miscibility. Also, compound compression system is generally employed with R-12 as opposed to parallel operation as with R-12 there is a tendency for oil to migrate and flood one compressor while starving an additional.

Thus, the boost the number of compressor as every single evaporator has an independent compressor. The condensers are of the shell and tube form sea water for cooling. The corrosion resistance cupronickel material is, therefore, used for tube and covers. The reviver capable of holding 20 per cent more charge in addition to entire charge is necessary. The liquid should emerge from both finish of the condenser, and later joining into one is required as it assure continuous draining of liquid during roll or pitch of the ship.

Even so, the different components which might be also regarded even though designing air conditioning system for ship are as follows: The working of the system should be objectionable noise and variation. The variation of duct, water piping and refrigerant piping may lead to fatigue and failure. So that you can keep away from this, it is essential to present right variation dumpers and canvas duct joint from the vibration machinery to the conditioned air carrying ducts.

The equipment should be created to occupy minimum space as a result of restricted space on ship board. The style of air circulation system needs particular attention, because the heat in just about every compartment is likely to become different. The load in each and every room also differs in day and night. Therefore, duct layout is more challenging because of lack of space for carrying the duct.

The low ceiling height of rooms in the ship needs special attention for layout of provide and return air ducts. The attention should be offered to the room dimensions, ceiling height, volume of air handled and air temperature difference in between the supply and space air. The particular quantity of spare components of important items and added refrigerant charge should be carried because the period of voyage may possibly be long.

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