Methanol One question per day Basic chemical engineering knowledge Heat exchangers 2016.02.01
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Methanol: One question per day – Basic chemical engineering knowledge, heat exchangers. February 1, 2016. Reply to see the answers! Welcome to participate actively! 1. For applications where there is not a large temperature difference between the tube side and the shell side, and where the material flowing in the shell side is relatively clean, a ( ) heat exchanger can be chosen. A. Floating head type B. Fixed tube sheet type C. U-tube type D. Shell and tube type. 2. When dealing with high-pressure media in which scaling is unlikely to occur in the tube side, and when there is a large temperature difference between the tube side and the shell side, it is necessary to use a （ ） heat exchanger. A. Fixed tube sheet type B. U-tube type C. Floating head type D. Double tube type 3. With all other conditions remaining unchanged, increasing the temperature will cause the reaction equilibrium to shift in the （ ） direction. A. Exothermic B. Endothermic C. Neither endothermic nor exothermic B B B
1. For applications where there is not a large temperature difference between the tube side and the shell side, and where the material flowing in the shell side is relatively clean, a ( ) heat exchanger can be chosen. B. Fixed tube sheet type: 2. When dealing with high-pressure media in which scaling is unlikely to occur in the tube side, and when there is a large temperature difference between the tube side and the shell side, it is necessary to use a （） heat exchanger. B. U-tube type 3. With all other conditions remaining constant, increasing the temperature will shift the reaction equilibrium in the ( ) direction. B. Endothermic
1. For applications where the temperature difference between the tube side and shell side is not large and the material flowing in the shell side is relatively clean, a (B) type heat exchanger can be chosen. A. Floating head type B. Fixed tube sheet type C. U-tube type D. Shell and tube type. 2. When dealing with high-pressure media in which scaling is unlikely to occur in the tube side, and when there is a large temperature difference between the tube side and the shell side, it is necessary to use a (B) type heat exchanger. A. Fixed tube sheet type B. U-tube type C. Floating head type D. Sleeve type 3. With all other conditions remaining unchanged, increasing the temperature will shift the reaction equilibrium in the (B) direction. A. Exothermic B. Endothermic C. Neither endothermic nor exothermic
1. For applications where the temperature difference between the tube side and shell side is not large and the material flowing in the shell side is relatively clean, a (B) type heat exchanger can be chosen. A. Floating head type B. Fixed tube sheet type C. U-tube type D. Shell and tube type. 2. When dealing with high-pressure media in which scaling is unlikely to occur in the tube side, and when there is a large temperature difference between the tube side and the shell side, it is necessary to use a (B) type heat exchanger. A. Fixed tube sheet type B. U-tube type C. Floating head type D. Sleeve type 3. With all other conditions remaining unchanged, increasing the temperature will shift the reaction equilibrium in the (B) direction. A. Exothermic B. Endothermic C. Neither endothermic nor exothermic
1.B 2.C 3.B
1. The fixed-tube-sheet type of heat exchanger can be chosen in situations where there is not a large temperature difference between the tube side and the shell side, and where the material flowing through the shell side is relatively clean. 2. When dealing with high-pressure media in which the tube side is less prone to scaling, and there is a large temperature difference between the tube side and the shell side, a (C, floating-head) heat exchanger should be selected. 3. With all other conditions unchanged, increasing the temperature shifts the reaction equilibrium in the direction of (B. endothermic).
1. For applications where the temperature difference between the tube side and shell side is not large and the material flowing in the shell side is relatively clean, a (B) type heat exchanger can be chosen. A. Floating head type B. Fixed tube sheet type C. U-tube type D. Shell and tube type. 2. When dealing with high-pressure media in which scaling is unlikely to occur in the tube side, and when there is a large temperature difference between the tube side and the shell side, it is necessary to use a (B) type heat exchanger. A. Fixed tube sheet type B. U-tube type C. Floating head type D. Sleeve type 3. With all other conditions remaining unchanged, increasing the temperature will shift the reaction equilibrium in the (B) direction. A. Exothermic B. Endothermic C. Neither endothermic nor exothermic
1. For applications where the temperature difference between the tube side and shell side is not large and the material flowing in the shell side is relatively clean, a (B) type heat exchanger can be chosen. A. Floating head type B. Fixed tube sheet type C. U-tube type D. Shell and tube type. 2. When dealing with high-pressure media in which scaling is unlikely to occur in the tube side, and when there is a large temperature difference between the tube side and the shell side, it is necessary to use a (B) type heat exchanger. A. Fixed tube sheet type B. U-tube type C. Floating head type D. Sleeve type 3. With all other conditions remaining unchanged, increasing the temperature will shift the reaction equilibrium in the (B) direction. A. Exothermic B. Endothermic C. Neither endothermic nor exothermic