Abstract
The dedicated mechanical subcooled (DMS) refrigeration system is examined in the current study, based on the configuration of energy and exergy. The performance of a simple vapor compression refrigeration system (VCRS) and dedicated mechanical subcooled system are evaluated while maintaining the same cooling capacity (i.e. 100 kW). The results of comparative study showed an improvement of 8.2% in the coefficient of performance (COP) of the DMS system. Additionally, it has been discovered that the exergetic efficacy of the VCRS and DMS systems is 32.8% and 35.2%, respectively. The above results proved that, the suggested system perform better with more efficient cooling technology, which proves it to be a better option for design engineers in water chilling application in the foreseeable future.The coefficient of structural bond (CSB) and advanced exergy analysis (AEA) methodologies along with environmental benefits of the DMS system are also looked into in light. The value of CSB for conderser-1 is observed to be highest (2.08), with total irreversibility rate of 22.7%. However, in case of compressor-1 the highest irreversibility rate of 34.8% is observed but its CSB value is only 1.09. Therefore, by enhancing the performance of system components, it is possible to avoid 42.9% of the overall irreversibility rate of the dedicated mechanical subcooled system using enhanced exergy analysis.
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