Podcast
Questions and Answers
What is the purpose of locating the pump below the expansion tank?
What is the purpose of locating the pump below the expansion tank?
- To cool down the thermal fluid
- To enhance heat transfer in the system
- To increase the flow rate of the pump
- To prevent cavitation in the pump suction (correct)
Why are centrifugal pumps the preferred type in liquid thermal systems?
Why are centrifugal pumps the preferred type in liquid thermal systems?
- Because they cool down the thermal fluid efficiently
- Because they are more compact than other types of pumps
- Because they provide higher flow rates (correct)
- Because they require less maintenance
What is a common auxiliary equipment found in liquid thermal systems?
What is a common auxiliary equipment found in liquid thermal systems?
- Thermal insulation
- Electric heaters
- Pneumatic cylinders
- Valves (correct)
Why are circulating pumps in liquid thermal systems often water-cooled?
Why are circulating pumps in liquid thermal systems often water-cooled?
Which major equipment plays a central role in the return system of liquid thermal systems?
Which major equipment plays a central role in the return system of liquid thermal systems?
What is the main purpose of a hot oil system in a plant?
What is the main purpose of a hot oil system in a plant?
How do heat transfer fluids used in hot oil systems differ from steam?
How do heat transfer fluids used in hot oil systems differ from steam?
Why are high temperature process applications preferred with heat transfer fluids like hot oils?
Why are high temperature process applications preferred with heat transfer fluids like hot oils?
What led to the breakdown of the original oils used in heat transfer fluids?
What led to the breakdown of the original oils used in heat transfer fluids?
Why are hot oil systems often registered at lower levels than equivalent steam systems?
Why are hot oil systems often registered at lower levels than equivalent steam systems?
What is a fundamental difference between hot oil systems and hot water heating systems?
What is a fundamental difference between hot oil systems and hot water heating systems?
What is the consequence of not cleaning the system before recharging it with fresh heat transfer fluid?
What is the consequence of not cleaning the system before recharging it with fresh heat transfer fluid?
What is the main reason why exposed piping systems using heat transfer fluid pose a burn hazard to personnel?
What is the main reason why exposed piping systems using heat transfer fluid pose a burn hazard to personnel?
Which pump type is considered preferable in liquid thermal systems due to higher flow rates?
Which pump type is considered preferable in liquid thermal systems due to higher flow rates?
What is the typical efficiency range for radiant heaters used in heat transfer fluid systems?
What is the typical efficiency range for radiant heaters used in heat transfer fluid systems?
In a combination radiant and convection heater, where does heat transfer occur?
In a combination radiant and convection heater, where does heat transfer occur?
What is a key reason why a concrete dike surrounds the foundation of the fired heater?
What is a key reason why a concrete dike surrounds the foundation of the fired heater?
What is a key advantage of using heat transfer fluids (HTFs) over steam?
What is a key advantage of using heat transfer fluids (HTFs) over steam?
In a vapour-based heat transfer system, what does the saturated gas function as?
In a vapour-based heat transfer system, what does the saturated gas function as?
Why are liquid thermal systems preferred to use centrifugal pumps?
Why are liquid thermal systems preferred to use centrifugal pumps?
What can cause blockage of pipes and valves in a heat transfer system?
What can cause blockage of pipes and valves in a heat transfer system?
Why are vapour heat transfer systems generally considered more expensive and complex than liquid systems?
Why are vapour heat transfer systems generally considered more expensive and complex than liquid systems?
Which type of heat transfer fluid is typically used for very high process temperatures over 400°C?
Which type of heat transfer fluid is typically used for very high process temperatures over 400°C?
Why is the expansion tank critical for the operation of a heat transfer system?
Why is the expansion tank critical for the operation of a heat transfer system?
What can cause corrosion issues within a heat transfer system?
What can cause corrosion issues within a heat transfer system?
How do vapour phase heat transfer systems differ from liquid systems?
How do vapour phase heat transfer systems differ from liquid systems?
What happens to heat transfer fluids over time in elevated temperatures?
What happens to heat transfer fluids over time in elevated temperatures?
What is the purpose of the expansion tank in a hot oil system?
What is the purpose of the expansion tank in a hot oil system?
Why is a low hot oil flow indicating device installed in the outlet line from the heater?
Why is a low hot oil flow indicating device installed in the outlet line from the heater?
What is the main function of a burner flame failure device in a hot oil system?
What is the main function of a burner flame failure device in a hot oil system?
Why is a high stack temperature indicator important in a hot oil system?
Why is a high stack temperature indicator important in a hot oil system?
What role does an emergency shutdown device play in a hot oil system?
What role does an emergency shutdown device play in a hot oil system?
Why is it recommended to leave the suction valve of the standby pump open all the time?
Why is it recommended to leave the suction valve of the standby pump open all the time?
What happens if any of the protective devices in a hot oil system senses a malfunction?
What happens if any of the protective devices in a hot oil system senses a malfunction?
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