An adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the condenser level to the evaporator level. R-134a enters he capillary tube as a saturated liquid at 70.4 oC, and leaves at -2 oC. Determine the rate of entropy generation in the capillary tube for a mass flow rate of 0.37 kg/s. sl (kJ/kgK) Format : 0.3839 x2 Format : 0.248 52 (kJ/kgK) Format : 0.7868 Sgen (kW/K) Format : 0.0284

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.