equipment.Heat_Exchanger module

class equipment.Heat_Exchanger(**kwargs)

Bases: equipment

Define a simple heat exchanger, only make energy balance

Parameters:

entrada: Corriente instance to define input stream Heat: global heat value exchanged Tout: Output temperature DeltaT: Increase temperature in stream A: area for heat exchange U: Global coefficient of heat transmision Text: Ambient external temperature DeltaP: Opcional pressure losses of equipment

>>> from lib.corriente import Corriente
>>> agua = Corriente(T=300, P=101325., caudalMasico=1., fraccionMolar=[1.])
>>> Cambiador = Heat_Exchanger(entrada=agua, Tout=350)
>>> print("%6g" % Cambiador.HeatCalc.MJh)
753.063

Attributes:

isCalculable

modo: unknown variable to calculate

Methods

calculo()	Procedure to calcute equipment, defined in child class
cleanOldValues(**kwargs)	Clean kwargs values for old heat exchanger definition
propTxt()	txt equivalent to output properties of equipment
propertiesEquipment()	procedure to define output values in a list with format: (Name, kwargs name, units), if kwargs name if a combobox element the index isn't useful so use a tuple (Txt_Values kwargs_name)
readStatefromJSON(state)	Load instance parameter from saved file
writeStatetoJSON(state)	Write instance parameter to file

title = 'Heat Exchanger'

help = ''

kwargs = {'A': 0.0, 'DeltaP': 0.0, 'DeltaT': 0.0, 'Heat': 0.0, 'Text': 0.0, 'Tout': 0.0, 'U': 0.0, 'entrada': None}

kwargsInput = ('entrada',)

kwargsValue = ('Heat', 'Tout', 'DeltaT', 'A', 'U', 'Text', 'DeltaP')

calculateValue = ('HeatCalc', 'ToutCalc')

cleanOldValues(**kwargs)

Clean kwargs values for old heat exchanger definition

property isCalculable

modo: unknown variable to calculate

1 - Known output temperature, calculate other variables 2 - known heat exchange 3 - known heat exchanger characteristic, calculate output stream

calculo()

Procedure to calcute equipment, defined in child class

propTxt()

txt equivalent to output properties of equipment

classmethod propertiesEquipment()

procedure to define output values in a list with format: (Name, kwargs name, units), if kwargs name if a combobox element the index isn’t useful so use a tuple (Txt_Values kwargs_name)

writeStatetoJSON(state)

Write instance parameter to file

readStatefromJSON(state)

Load instance parameter from saved file