Mechanical Refrigeration Systems

Because mechanical refrigeration systems frequently chill to as low as O”F, they involve essentially the same problems encountered in the low-temperature systems where the temperature is obtained by pressure expansion. Technical Data used in the field explained in  petroleum courses in Islamabad. The systems really are quite similar. The only essential difference is that the choke in the low-temperature separator systems is replaced by a chiller in the mechanical refrigeration systems.

Although glycol-injection systems are used extensively, there are many installations where inlet dehydration is used to lower the water dewpoint of the gas below the operating temperature in the chiller. There is merit to this system since the glycol does not come in contact with the condensate and glycol losses are, therefore, much smaller. Some of the other operating problems such as separation of glycol and condensate also are eliminated. The dehydrator, if it exists in the flowsheet, would ordinarily be placed between the inlet liquid separator and the chiller. The dehydrator could either be a liquid or granular desiccant type. In a refrigeration process, low temperature is achieved by cooling the gas using a refrigerant at low pressure. Some more details of petroleum courses in Islamabad are as under.

The heat in the incoming stream vaporizes the refrigerant at low pressure. The refrigerant must then have its pressure increased so that it can be liquefied. The pressure may be raised in two ways-compression or by absorbing the refrigerant in a liquid, which is then pumped to high pressure with the refrigerant being stripped and subsequently condensed. Compression refrigeration systems are more common, but either should work satisfactorily. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join petroleum courses in Rawalpindi.