Additional Equipment for Heat Transfer in Boilers

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

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 (B)</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 (D)</p> Signup and view all the answers

What is the purpose of the crystallization process?

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

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

<p>Solvent Extraction (D)</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 (C)</p> Signup and view all the answers

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

<p>Crystallization (B)</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 (C)</p> Signup and view all the answers

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

<p>Chemical Conversion Processes (D)</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. (A)</p> Signup and view all the answers

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

<p>Absorption. (B)</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 (D)</p> Signup and view all the answers

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

<p>Latent heat (B)</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 (D)</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 (D)</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 (A)</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 (D)</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 (A)</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 (A)</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 (D)</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 (B)</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 (A)</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 (D)</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 (C)</p> Signup and view all the answers

How do steam separators contribute to efficient steam distribution?

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

Why are pumps used in heat transfer fluid systems?

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

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

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

What is the function of a combustion air preheater?

<p>Transfer excess heat into incoming combustion air (B)</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 (B)</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 (C)</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 (B)</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 (C)</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 (C)</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 (A)</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 (D)</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 (A)</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 (B)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Use Quizgecko on...
Browser
Browser