University:
North Seattle College
Course:
CHEM 122 | Introduction to Organic Chemistry
Academic year:

2022
Views:

25

Pages:

2
Author:

WillAnd88

★ - right answer 1) Frame heat exchanger, which of the following component should be installed? Corrugation Pressure plate ★ Gasket None 2) Which among the following are not a proper selection criteria for a heat transfer fluid? It should have higher melting and lower boiling It should provide low vapor pressure (<1 atm) at higher temperature It should be thermally stable and pose minimum corrosion to the storage tanks and tubes where it will be circulated ★ It should have high viscosity, lower thermal conductivity, and high heat capacity. 3) Statement: The corrugation pitch in a plate and frame type heat exchanger can be defined as the depth of the tangent drawn on corrugation top point with the base. True ★ False 4) Statement 1: With increase in chevron angle, the heat transfer of a corrugated plate and frame heat exchanger _ Statement 2: With increase in chevron angle, the pressure drop in a corrugated plate and frame heat exchanger. Choose the correct options for the statements. ★ increases (Statement 1), decreases (Statement 2) Increases (Statement 1), increases (Statement 2) decreases (Statement 1), increases (Statement 2) decreases (Statement 1), decreases (Statement 2) 5) Spiral type heat exchangers (SHEs)? ★ SHEs are very reliable in harsh conditions ★ SHEs can handle slurries easily ★ SHEs can handle long and stringy fiber based fluids There are no thermal expansion problems in SHEs 6) Which among the following points are true for parabolic through collector (PTC) based concentrated solar power technology? ★ PTC can obtain inside fluid temperature up to 400 oC from sunlight. ★ PTC works on the principle of solar rays tracking ★ PTC concentrates solar radiation by the help of multiple reflecting planes ★ PTC contains large mirrors which focuses and concentrates the sunlight towards the receiver 7) Wide gap type plate and frame heat exchangers are specifically used for Handling the high temperature fluids Handling the slurries Increasing the contact area between the fluid and plate ★ All of the above 8) Which among the following is not an advantage of spiral type heat exchangers? Self-cleaning flow passage No thermal expansion limitation for the material Suitable for fluid containing slurries ★ Suitable for handling fibrous fluid 9) Concentrated solar power (CSP) technology works on the principle of photoelectric effect to directly convert the solar energy into the electrical energy True ★ False 10) The efficiency of parabolic through (PTC) system is generally higher than the central tower technology because a single dual-axis control can handle a large number of mirrors in PTC systems. ★ True