def test_FlowStatePoly(self):
refData = mc.RefData("air", 2, 101325., {
'T': [200, 250, 300, 350, 400]
})
flow = mc.FlowStatePoly(refData, 1.0, mc.PT_INPUTS, 101325., 293.15)
self.assertAlmostEqual(flow.rho() - 1.205, 0, 3)
self.assertAlmostEqual(flow.cp() / 1000 - 1.006, 0, 3)
self.assertAlmostEqual(flow.k() - 0.0257, 0, 3)
def test_FlowStatePoly_error_pressure(self):
refData = mc.RefData("air", 2, 101325., {
'T': [200, 250, 300, 350, 400]
})
with self.assertRaises(ValueError):
mc.FlowStatePoly(refData, 1.0, mc.PT_INPUTS, 201325., 293.15)
def test_accept_FlowStatePoly(self):
refData = mc.RefData("air", 2, 101325.,
{'T': [200, 250, 300, 350, 400]})
flow = mc.FlowStatePoly(refData, 1.0, mc.PT_INPUTS, 101325., 293.15)
self.hxUnit.update({'flowInSf': flow})
pEvap = 10.e5
superheat = 0
TCond = 300.
subcool = 0
comp = mc.CompBasic(nan, 0.7, sizeAttr="pRatio")
print(" - created compressor")
sourceIn_m = 0.09
sourceIn_T = 1170.
sourceIn_p = 1.116e5
sourceFluid = "N2[{0}]&CO2[{1}]".format(0.75, 0.25)
TData = [300, 500, 700, 900, sourceIn_T]
sourceRefData = mc.RefData(sourceFluid,
2,
sourceIn_p, {'T': TData},
phaseCP=CP.iphase_gas)
sourceIn = mc.FlowStatePoly(sourceRefData, 0.09, CP.PT_INPUTS, sourceIn_p,
sourceIn_T)
sourceAmbient = mc.FlowState(sourceFluid, CP.iphase_gas, -1, CP.PT_INPUTS,
0.88260e5, 281.65)
evap = mc.library.alfaLaval_AC30EQ(sizeAttr="NPlate")
print(" - created evaporator")
exp = mc.ExpBasic(-1, 0.7, sizeAttr="pRatio")
print(" - created expander")
sinkIn = mc.FlowState("Air", -1, -1, CP.PT_INPUTS, 0.88260e5, 281.65)
sinkAmbient = sinkIn.copy()
cond = mc.ClrBasic(constraint=mc.CONSTANT_P, -1, 1, sizeAttr="Q")
print(" - created condenser")
config = mc.Config()
config.update({
'dpEvap': False,
'dpCond': False,