Help with transient mass balance for desalination by destillation

In summary, transient mass balance for desalination by destillation is the calculation of the mass flow rate of water over a specific time period, considering changes in mass such as evaporation and condensation. It is calculated using the principle of conservation of mass, and is important for monitoring and optimizing the process. Factors that can affect it include temperature, feed water composition, and operating conditions, and it can be improved by carefully controlling these factors and maintaining the equipment.
  • #1
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Homework Statement



me493-hw01.jpg


Homework Equations



ordinary mass balance


The Attempt at a Solution



So far I have gotten:
d[rhob*V]/dt = Min - ?
 
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  • #2
d[rhob*V]/dt = Min - rhob*Min*(1-n)/(rhos + rhow)

is what i got
 
  • #3
Mind me asking how you got the out term (the rhob*Min*(1-n)/(rhos + rhow))? Not saying that you are wrong but having trouble getting this and curious how you got to that.
 

1. What is transient mass balance for desalination by destillation?

Transient mass balance for desalination by destillation refers to the calculation of the mass flow rate of water through a desalination process over a specific period of time. It takes into account the changes in mass of the water during the desalination process, such as evaporation and condensation.

2. How is transient mass balance for desalination by destillation calculated?

Transient mass balance for desalination by destillation is calculated by using the principle of conservation of mass, which states that the mass of a closed system remains constant over time. This involves measuring the inlet and outlet flow rates, as well as the changes in mass of the water during the process.

3. Why is transient mass balance important in desalination by destillation?

Transient mass balance is important in desalination by destillation because it allows for the monitoring and optimization of the desalination process. By understanding the mass flow rates and changes in mass, adjustments can be made to improve the efficiency and effectiveness of the process.

4. What are the factors that affect transient mass balance in desalination by destillation?

There are several factors that can affect transient mass balance in desalination by destillation, such as variations in ambient temperature, changes in feed water composition, and fluctuations in operating conditions. These factors can impact the evaporation and condensation rates, thus affecting the mass balance.

5. How can transient mass balance be improved in desalination by destillation?

To improve transient mass balance in desalination by destillation, it is important to carefully monitor and control the operating conditions, such as temperature and feed water composition. Additionally, regular maintenance and cleaning of the equipment can help to maintain consistent flow rates and minimize any losses in mass during the process.

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