9. On the design of Plate Heat exchangers the turbulence helps prevent particles
ID: 703460 • Letter: 9
Question
9. On the design of Plate Heat exchangers the turbulence helps prevent particles from settling or plating out. Particle build up creates "Resistance/Fouling" inside the equipment. A. TRUE B. FALSE Match the correct definition with the correct term from questions 10-13: A. Internal energy B. Latent heat C. Chemical (bond) energy D. Nuclear energy 10.The internal energy associated with the atomic bonds in a molecule. 11. May be viewed as the sum of the kinetic and potential energies of the molecules 12. The internal energy associated with the bonds within the nucleus of the atom itself 13. The internal energy associated with the phase of a system. 14. Heat Transfer deals with the determination of theof such energy Transfers as well as variation of temperature. Heat transfer stops when the Two mediums reach the same temperature. A. rate B. equations C. reactions D. none of the aboveExplanation / Answer
9.Ans
option A is correct. In plate heat exchanger contains herringbone patterned heat transfer plates. These are assembled in such a way that it creates two sets of parallel channels in an inverse formation, one parallel channel for each liquid. Since the herringbone patterns point in opposite directions so it creates turbulence and Turbulence helps prevent particles from settling or plating out and Particle buildup creates “Resistance/Fouling” inside equipment.
Matching question
A. internal energy - 11. may be viewed as the sum of kinetic and potential energy of the molecules.
B. latent heat -13. the internal energy associated with the phase of the system.
C. chemical energy -10. the internal energy associated with the atomic bonds of the molecule.
D. nuclear energy-12.the internal energy associated with the bonds within the nucleus of the atom itself
14.Ans
option A is correct. Heat transfer studies deal with the determination of the rates of energy transfers and variation of temperature and it stops when the systems under consideration reach equilibrium i.e when temperatures of the systems become equal.
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