عنوان

Optimization of Microreactor Design Using Computation Fluid Dynamics

Number

TLpq2490131299

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Optimization of Microreactor Design Using Computation Fluid Dynamics

General Material Designation

[Thesis]

First Statement of Responsibility

Chukwudoro, Chiemeka P.

Subsequent Statement of Responsibility

Basha, Omar M.

Name of Publisher, Distributor, etc.

North Carolina Agricultural and Technical State University

Date of Publication, Distribution, etc.

2020

Specific Material Designation and Extent of Item

48

Dissertation or thesis details and type of degree

M.S.

Body granting the degree

North Carolina Agricultural and Technical State University

Text preceding or following the note

2020

Text of Note

In this work a multi-Eulerian CFD model was used to investigate the effect of different design features on the performance of a microchannel reactor available at NC A&T. The CFD model was used to investigate the effect of the reactor inlet, the mixing internals and the channel designs on the dead zone %, the quality index factor, the cooling requirement and the maximum dimensionless temperature within the microreactor. Subsequently, an analysis was conducted to determine the effect of changing the channel dimensions and on the numbering up of the microchannel reactors to produce 1 bpd. Channel types 5 to 9 showed the highest reduction of dead zone % within the microreactor, with the dead zone % reduced to less than 10% compared to original design, which had a dead zone % greater than 20%. Similarly, channel types 5 to 9 exhibited significantly lower quality index factors, moreover, both the T-inlet and the V-inlet designs exhibited lower quality index factors compared to the straight inlet design. When investigating the effect of channel dimensions on the microreactor performance, there is no significant effect of increasing the channel width on the microreactor performance and operating microchannel reactor at lower Nusselt number results in higher CO conversion. Moreover, increasing the channel width reduced the maximum temperature exhibited in the channel. However, both designs exhibited the same temperature profiles along the channel, with the maximum temperature observed at around 40% of the channel length. Finally, the effect of increasing the y/x stacking ratio, i.e. having more reactor units in parallel compared to series, was investigated. Increasing the y/x ratio will increase the cooling requirement and the maximum dimensionless temperature increase within the unit and will decrease the productivity. Therefore, in order to minimize productivity losses, numbering up in series is the better approach, however further analysis has to be done to delineate heat removal requirements.

Chemical engineering

Communication

Multimedia communications

Basha, Omar M.

Chukwudoro, Chiemeka P.

Electronic name

p

[Thesis]

276903

a

Y