Stunden WH Flashcards
Input: 200+- 0
Output: 240 +- 40
After data reconcoloation …
the reconcilled mean values of flow 1 and 2 are the same
the uncertainties of flow 1 and flow 2 are the same
a gross error will be displayed
the mass balance is fulfilled
A
B
C
Units for a flux
kg
kg/m³
kg/s
kg/(s*m²)
D
TC
Input: 100
Output 1: 80
Output 2: 20
TC2 = 0.2
Proper names for flows (MS)
Recycling facility
Recycilng residues
Recycilng material
Recycilng efficiency
B
C
Substances
Aluminium
Copper ore
Iron
Water
A
C
materials
Aluminium
Copper ore
Iron
Water
A
B
C
D
After reconciliation the mean value of flow 1 is…
Input: 100 +- 5
Output: 110 +-10
102
Methods to compute the mean value of a flow
Data reconciliation
Uncertainty propaation
Mass conservation
Monte Carlo simulation
C
D
Piece in STAN
Artificial unit as …
volume
After reconciliation the uncertainties of flow 1 and 2 are …
Input: 100 +- 5
Output: 110 +-10
4.5
Money is STAN
Articical unit as …
energy
What is the value and the uncertainty of Output 2 after data reconciliation?
Input: 300
Output 1: 220 +- 20
Output 2: 100
200 +- 0
uncertainty stated as 100 +- 10
can also have negative values
is restrictes to th interval [90, 100]
descries a random variable that is assumed to be normally distributed, with mean value 100 and standard unverteinty 10
uncertainty stated as 100 +- 10
can also have negative values
is restrictes to th interval [90, 100]
descries a random variable that is assumed to be normally distributed, with mean value 100 and standard unverteinty 10
can have positv values only
A
C
Input: 200 +- 0
Output: 240 +- 40
Afte data reconciliation, the uncertainties fo flow 1 and 2 are
the same
smaller than or equal to the smallest given uncertainty
larger than or equal to the highest given uncertainty
exactly the middle of the given uncertainties
A
B
Wich requirements have to be fulfilled in order to be able to perform data reconciliation
Data uncertainties have to be given
the system of equations is underdetermined (less quations than unknown variables)
the system of equations is exaxtly determined (numbers of equations and unknown variables are the same)
the system of equations is overdetermined (more quations than unknown variables)
A
D
Wich requirements have to be fulfilled in order to be able to perform uncertainty propagation
Data uncertainties have to be given
the system of equations is underdetermined (less quations than unknown variables)
the system of equations is exaxtly determined (numbers of equations and unknown variables are the same)
the system of equations is overdetermined (more quations than unknown variables)
A
C
Input: 200 +- 0
Output: 240 +- 40
Afte data reconciliation, the values of flow 1 and 2 are
200 +- 0
