def getMassFlow(self,
sname,
component='',
get_unit=False,
unit_change_to=None) -> float:
"""Get the Massflow of specified stream for Total or component .
sname: Stream name
component: If it is no given. the fct will give the total massflow.
If you give the component name, the fct will give the component flowrate.
get_unit: "True" to get the unit. "False" is a default value.
unit_change_to: unit index in AspenFile for the changing unit. If you don't want to change
the unit, unit_change_to should be 'None'(Default value is this).
"""
## 先檢查輸入的資料型態正確與否
if type(component) != str:
raise TypeError("component must be a 'String'!!!")
if type(get_unit) != bool:
raise TypeError("unit must be a 'Boolean'!!!")
if unit_change_to is not None and type(unit_change_to) != int:
raise TypeError("unit_change_to must be a 'Integer' or 'None'!!!")
## 把component轉換成大寫，因為Aspen裡面的名稱都大寫
component = component.upper()
## 辨認是要輸出總流量還是化合物流量
if component != '':
## 辨認化合物有沒有在檔案當中，如無回傳錯誤
if component not in self.master.ComponentsList():
raise UDE.AspenPlus_ComponentTypeError(
"Cannot Find " + component + " in the AspenFile. " +
"Please Check the name you type!!")
path = '\Data\Streams' + '\\' + sname + '\Output\MASSFLOW3' + '\\' + component
elif component == '':
path = "\Data\Streams" + "\\" + sname + "\Output\STR_MAIN\MASSFLMX\MIXED"
## 看看有沒有要改單位
if unit_change_to is None: # 沒有要改單位
## 是要取得數值還是單位
if get_unit: # 取得單位
return self.master.UnitFind(self.aspen.Tree.FindNode(path),
table=True)
else: # 取得數值
return self.aspen.Tree.FindNode(path).Value
elif unit_change_to is not None: # 要改單位的話
if get_unit: # 取得單位
pq = self.aspen.Tree.FindNode(path).AttributeValue(2)
return self.master.Unit(item=[pq, unit_change_to], table=True)
else: # 取得數值
return self.master.UnitChange(self.aspen.Tree.FindNode(path),
unit_change_to)
def getMoleFrac(self, sname, component) -> float:
"""Get the Mole Fraction of specified component of specified stream.
sname: Stream name
component: component you want to know.
"""
## 先檢查輸入的資料型態正確與否
if type(component) != str:
raise TypeError("component must be a 'String'!!!")
## 把component轉換成大寫，因為Aspen裡面的名稱都大寫
component = component.upper()
## 檢查輸入的化合物名稱是否在檔案當中，如無回傳錯誤
if component not in self.master.ComponentsList():
raise UDE.AspenPlus_ComponentTypeError(
"Cannot Find " + component + ' in the AspenFile. ' +
"Please Check the name you type!!")
# mole fraction這邊用算的
mt = self.getMoleFlow(sname)
m = self.getMoleFlow(sname, component=component)
return m / mt