Lost in confusion over engineering design calculations..
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I am a junior student. . I don’t have much experience in design. . Now, the engineering design for triethylene glycol dehydration needs to be carried out. . It’s simply impossible to know where to start with the calculations. . Hope experts can give some guidance. . It would be great if there could be a template or something that would help me as a beginner refer to. . ! Thank you to all the experts! !
There are calculations related to this in the course on principles of chemical engineering; you need to find the formulas on your own. If there are any details you don’t understand, feel free to ask. Templates are based on accumulated basic knowledge, and there’s no fixed format. Some calculation tools are available in Haichuan’s engineering software discussion forum.
First, search for relevant information online to gain a preliminary understanding. Then, look for related articles in school journals and seek out relevant books in the library; this will give you a more in-depth understanding. After that, follow the general procedures used in chemical engineering design, and finally carry out the necessary calculations for the processes and equipment involved. You must do all of this on your own, as only in this way can you master the skills better and get started more quickly in your future work
I think it’s not impossible to get started – by researching information, developing process flows, performing process calculations, as well as calculations related to equipment and processes. Looking at the \"Natural Gas Engineering Handbook\" will at least let you know what specific problems exist. Following the approach mentioned on the 3rd floor, it will definitely be possible to complete it.
Find the process design manual and follow the steps above
Is the poster in charge of course design? You can find a case study of a course design from previous years and see what approach they used, and then you’ll understand! Also, read the \"Process Design Manual\" carefully!
If the poster is working on a course design with modest requirements, they can look for relevant materials on the forum to get started. In my opinion, it’s too exhausting for girls to work in design; it’s better to consider changing careers in the future
Many women at the Beijing Design Institute work in design; their system is well-established, and the work isn’t too exhausting
Thank you all! Things are starting to become clearer now! :Lol PS: It’s really tough for girls to work in design
The dehydration process for triethylene glycol would involve designing a distillation tower, right? This is still a considerable amount of work. One should start by examining the properties of the materials; after understanding those properties as well as the basic conditions of the tower (the type of tower), it’s necessary to carry out material balance calculations, heat balance calculations, determine the number of tray levels (taking into account what type of tower it is and the relevant calculation methods), and select the appropriate auxiliary equipment, among other things. This amount of work probably can’t be completed by just one or two people in a month! ! But first, you need a \"Chemical Process Design Handbook\" and \"Principles of Chemical Engineering\" as basic reference materials! ! ! !
Triethylene glycol: HOCH2CH2OCH2CH2OCH2CH2OH, molecular weight 150.17, CAS number 112-27-6; a colorless, odorless, hygroscopic, viscous liquid. Flammable. Low toxicity. Relative density 1.1254 (20/20°C). Boiling point 288°C (278.3°C). Melting point -4.3°C (-5°C). Compared to water, the boiling point difference is so large that dehydration can be achieved through batch vacuum drying in a batch reactor, or by using a distillation tower with continuous feeding. The former requires less investment, but has a lower processing capacity and higher energy consumption, while the latter allows for higher processing capacities and higher investment costs, but with lower energy consumption. Once the processing process is determined, the calculation methods can be applied easily.
Oh, if it’s just about designing courses, then it’s not at that level of complexity. But it’s still necessary to be familiar with some basic calculations, and these two books are essential. There’s no need for any templates or examples; it’s better to do the calculations by yourself. Doing things personally leaves a deeper impression and is very helpful for one’s own development. This is a good necessary path; don’t take shortcuts – putting in more effort pays off
If there are basic design methods, you can find out by checking reference books
One should build a solid foundation during school years. Supports searching multiple manuals and materials.
Take a look at Principles of Chemical Engineering and Chemical Engineering Design; there seems to be another book on Experimental Chemical Engineering Design that you can refer to. There’s also a handbook on physical properties of chemicals – check it out for the data :)
In my junior year, I did a course project – it was enough to just mess it through by copying others’ work; there’s no need to be too serious about it. Anyway, I’ll change careers after graduation. Why would a woman work in the chemical industry? Women in factories are exposed to toxic gases, which is not good for future generations. Doing design work means that you’ll look the same at 30 as you do at 40 – it’s pointless. It’s better to do something else. Based on my experience in the chemical industry, none of the girls in my class are working in chemistry anymore; they’ve basically all changed careers.
I completely agree with the person above. Even if it’s not a woman, one can just muddle through when doing course design; making mistakes in calculations won’t kill anyone.