Cross Flow Heat Exchanger Experiment EKC 394
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Questions and Answers

What is the main function of a heat exchanger?

  • To cool down a single medium
  • To transfer heat from one medium to another (correct)
  • To increase the temperature of a single medium
  • To generate heat from one medium to another
  • In which type of heat exchanger does heat transfer occur between one fluid flowing through a bundle of tubes and another flowing transversely over the outside of the tubes?

  • Counter-flow heat exchanger
  • Shell and tube heat exchanger
  • Cross-flow heat exchanger (correct)
  • Parallel-flow heat exchanger
  • Which engineering application typically uses a cross-flow heat exchanger?

  • Boiler super-heaters and economizers (correct)
  • Chemical Engineering only
  • Refrigeration evaporators only
  • I.C. engine radiators only
  • What is the Model number of the Cross Flow Heat Exchanger used in the experiment?

    <p>HE350</p> Signup and view all the answers

    In which type of engineering is the unit suitable for teaching students?

    <p>Mechanical Engineering and Plant &amp; Process Engineering</p> Signup and view all the answers

    What is the purpose of the custom-designed electronic interface mounted in an adjacent console?

    <p>To interface with relevant instrumentation and transducers</p> Signup and view all the answers

    What is the purpose of the digital thermal anemometer in the cross flow heat exchanger (Model: HE350)?

    <p>To measure the air velocity and air temperature at the inlet of the duct</p> Signup and view all the answers

    What component of the cross flow heat exchanger provides thermal protection for the heater?

    <p>The heater surface thermocouple</p> Signup and view all the answers

    How is the airflow through the blower fan adjusted in the cross flow heat exchanger (Model: HE350)?

    <p>By turning the damper knob on top of the damper</p> Signup and view all the answers

    Which component of the cross flow heat exchanger controls the airflow at the fan discharge?

    <p>The adjustable iris at the fan discharge</p> Signup and view all the answers

    What is used to mount the acrylic panels for different configurations of the heater tubes in the cross flow heat exchanger (Model: HE350)?

    <p>Wingnuts</p> Signup and view all the answers

    Where should the connectors of the heater be connected in the cross flow heat exchanger?

    <p>At the right side of the control panel</p> Signup and view all the answers

    What is inserted into the holes in the respective acrylic boxes during an experiment with the cross flow heat exchanger?

    <p>Loose finned tubes and loose tubes</p> Signup and view all the answers

    What provides operator protection by supplying both fan and console via a residual current circuit breaker in the cross flow heat exchanger?

    <p>The circuit breaker and fuse</p> Signup and view all the answers

    Where is the active plain element of the heater located in the cross flow heat exchanger (Model: HE350)?

    <p>In an opening in the duct</p> Signup and view all the answers

    What is used to adjust the heat input in the cross flow heat exchanger?

    <p>The heater power regulator</p> Signup and view all the answers

    Study Notes

    Heat Exchangers

    • The main function of a heat exchanger is to transfer heat between two fluids.

    Types of Heat Exchangers

    • In a cross-flow heat exchanger, heat transfer occurs between one fluid flowing through a bundle of tubes and another fluid flowing transversely over the outside of the tubes.

    Applications of Cross-Flow Heat Exchangers

    • Cross-flow heat exchangers are typically used in engineering applications.

    Cross Flow Heat Exchanger (Model: HE350)

    • The model number of the cross-flow heat exchanger used in the experiment is HE350.
    • The unit is suitable for teaching students in the field of mechanical engineering.
    • The custom-designed electronic interface mounted in an adjacent console provides a purpose.
    • The digital thermal anemometer measures the temperature of the fluid flowing through the tubes.
    • The thermal protection component provides thermal protection for the heater.
    • The airflow through the blower fan can be adjusted using a variable speed controller.
    • The airflow at the fan discharge is controlled by the outlet grille.
    • Acrylic panels are mounted using screws and clips for different configurations of the heater tubes.
    • The connectors of the heater should be connected to the power supply.
    • Thermocouples are inserted into the holes in the respective acrylic boxes during an experiment.
    • The residual current circuit breaker provides operator protection by supplying both fan and console.
    • The active plain element of the heater is located in the center of the heater tubes.
    • The heat input can be adjusted using a variable voltage controller.

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    Description

    Learn about the experiment on cross flow heat exchanger, a common component in engineering applications for transferring heat from one medium to another. Understand the configuration and operation of cross-flow heat exchangers.

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