Tanner WarehamCI 317Aspen Task 1

Aspen Task 1Tanner Wareham 17662168Refrigerant R12:Cooling load: 1.934 kWS1S2S3S4

T(K)258.2319.8308.2258.2

P(Pa)183184837039837039183184

Refrigerant flow rate = 0.0175kg/sVapour fraction stream 4 = 0.2991Qcond = 2452 W to environmentQevap = 1934 WWcomp = 518 WCo-efficient of performance = 3.733

Propane:Cooling load: 1.934 kWS1S2S3S4

T(K)245.4302293.2245.4

P(Pa)183184837039837039183184

Refrigerant flow rate = 0.0063kg/sVapour fraction stream 4 = 0.2917Qcond = 2285 W to environmentQevap = 1920 WWcomp = 355.6 WCo-efficient of performance = 4.004Replacement of R12 with propane possible?No as the pressure increase as well as the work input increase from R12 to propane is more than 25%.