Additional Equipment for Heat Transfer in Boilers
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Questions and Answers

What is the principal energy transfer medium that the industry depends on for its process applications?

  • Ammonia
  • Water (correct)
  • Thermal fluids
  • Natural gas

    • Why is heat crucial in hydrocarbon processing?

  • To cool down the feedstocks
  • To eliminate the need for chemical reactions
  • To separate saleable end products (correct)
  • To reduce the need for thermal fluids

    • Which industry skill set is essential for effectively managing thermal operations?

  • Process Engineer
  • Power Engineer (correct)
  • Chemical Engineer
  • Mechanical Engineer

    • What are common thermal processing stages used throughout industry?

    <p>Generation, distribution, end-use, and recovery of thermal fluids</p> Signup and view all the answers

    What are some basic feedstocks that can be used in thermal processes?

    <p>Sweet and sour natural gas, conventional crudes, heavy crudes, and oil sands</p> Signup and view all the answers

    What is the purpose of the crystallization process?

    <p>To separate crystalline substances from non-crystalline ones</p> Signup and view all the answers

    In which type of process is steam often used to reduce solids buildup on heat exchangers?

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

    What is the primary function of a stripping tower in industrial processes?

    <p>To pull unwanted contaminants from a process fluid</p> Signup and view all the answers

    Which process involves separating compounds based on their solubility differences in complex mixtures?

    <p>Solvent Extraction</p> Signup and view all the answers

    What is the main purpose of quenching with steam in industrial processes?

    <p>To cool and stop high-temperature reaction processes</p> Signup and view all the answers

    Which type of process removes crystalline waxes from petroleum or edible oils?

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

    What is the purpose of pressure regulation using steam in industrial reactions?

    <p>To control the pressure of a reaction by injection into a fixed volume vessel</p> Signup and view all the answers

    Which process converts one compound into another through a chemical reaction?

    <p>Chemical Conversion Processes</p> Signup and view all the answers

    What is one of the main purposes of dilution using steam?

    <p>To reduce solids buildup on heat exchangers.</p> Signup and view all the answers

    In what type of process are absorbing agents used as filtering media?

    <p>Absorption.</p> Signup and view all the answers

    What is one of the main advantages of using steam as an energy transfer medium?

    <p>High heat capacity</p> Signup and view all the answers

    In what form is most of the heat contained in steam?

    <p>Latent heat</p> Signup and view all the answers

    What is the primary function of a heat transfer fluid system in industrial settings?

    <p>To circulate heat transfer liquid</p> Signup and view all the answers

    When is a steam system most often chosen over a heat transfer fluid system?

    <p>When temperature is below freezing</p> Signup and view all the answers

    Which type of energy conversion system uses compressed hydrocarbons to produce heated gases for thermal energy transfer?

    <p>Gas turbine system</p> Signup and view all the answers

    What is the primary purpose of a flash drum in a vapour phase heat transfer fluid system?

    <p>To separate vapor from liquid</p> Signup and view all the answers

    What distinguishes a heat recovery steam generator (HRSG) from a traditional boiler?

    <p>The form of the energy transfer medium produced</p> Signup and view all the answers

    Why is steam an ideal energy transport medium?

    <p>Ability to efficiently transfer latent heat at constant temperature</p> Signup and view all the answers

    What governs the choice between a steam system and a heat transfer fluid system for industrial processes?

    <p>Thermal requirements of the process</p> Signup and view all the answers

    How does a gas turbine system differ from a heat transfer fluid system in terms of energy conversion?

    <p>Uses compressed hydrocarbons directly for heating</p> Signup and view all the answers

    What is the role of an economizer in a boiler system?

    <p>Recycles thermal energy in combustion gases to feedwater</p> Signup and view all the answers

    Why is appropriate insulation important in a thermal distribution system?

    <p>To increase plant safety by reducing surface temperatures</p> Signup and view all the answers

    What is the purpose of steam accumulators in a distribution system?

    <p>To trap steam in the system for efficient operation</p> Signup and view all the answers

    How do steam separators contribute to efficient steam distribution?

    <p>By removing water droplets from wet steam</p> Signup and view all the answers

    What is the function of steam traps during system operation?

    <p>Enable air to escape during system startup</p> Signup and view all the answers

    Why are back-pressure turbines sometimes used in distribution systems?

    <p>To extract energy from high-pressure steam</p> Signup and view all the answers

    What purpose does an ancillary equipment serve in a generating system?

    <p>Ensuring feedwater quality and process safety</p> Signup and view all the answers

    Why are pumps used in heat transfer fluid systems?

    <p>To provide pressure for fluid movement</p> Signup and view all the answers

    What factor affects the efficiency of a distribution system other than insulation?

    <p>Component separation technologies</p> Signup and view all the answers

    What is the function of a combustion air preheater?

    <p>Transfer excess heat into incoming combustion air</p> Signup and view all the answers

    What is the main purpose of molecular size reduction in the chemical industry?

    <p>To convert large molecular size surplus products into smaller ones in demand</p> Signup and view all the answers

    In the context of chemical structure adjustment, what is the impact of creating a more branched product in gasoline manufacture?

    <p>It increases the octane number</p> Signup and view all the answers

    What is the purpose of a condensate return system in a steam system?

    <p>To collect and treat the condensate for reuse</p> Signup and view all the answers

    Which equipment is used to increase the feedwater pressure above boiler pressure in a steam system?

    <p>Boiler feed pumps</p> Signup and view all the answers

    What is the purpose of a deaerator in a steam system?

    <p>To strip oxygen and non-condensable gases from condensate</p> Signup and view all the answers

    How does direct-fired heaters using gas compare to steam or thermal fluid in terms of recovery and reuse processes?

    <p>Direct-fired heaters are more efficient in recovery and reuse compared to steam or thermal fluid</p> Signup and view all the answers

    What happens if any condensate is not returned in a steam system?

    <p>Makeup water with additional costs is used to replace it</p> Signup and view all the answers

    How are heat transfer fluids usually returned in comparison to condensate in a steam system?

    <p>They are returned through low-pressure piping after simple filtering</p> Signup and view all the answers

    What is one main advantage of using heat transfer fluids over condensate in terms of return and recycling processes?

    <p>They operate at higher pressures, simplifying their return journey</p> Signup and view all the answers

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