In a vertical short tube evaporator (Calandria type), the ______________________?
Correct answer: D. All A., B. & C.
- A. Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylindrical drum dia of 1-6 metres are
- B. normally used
- C. Area of central downtake is equal to 40 to 100% of total cross-sectional area of the
- D. All A., B. & C.
- E. Liquor is inside the tube while the steam is outside the tube
- F. surrounding tube
Explanation
A short-tube calandria uses relatively short tubes with liquor inside the tubes and heating steam outside; the central downtake provides circulation. The listed dimensional and construction features are therefore combined in the all-of-these option.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Heat Transfer Operations
645 free Heat Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Heat Transfer Operations questions
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones; because the smaller diameter tubes ______________?
When one of the fluids is highly corrosive and has fouling tendency, it should_____________________?
In a shell and tube heat exchanger, the overall heat transfer co-efficient is proportional to the tube side (volumetric flow rate)0.8. This is valid, only when the ratio of the tube side film resistance to the total resistance is almost equal to____________________?
In most of the shell and tube heat exchangers, the tube pitch is generally ______________ the tube diameter?
The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles ?
In case of 1.5″ heat exchanger tubes, the inside flow area _____________ with decrease in BWG?