A steam supplied heat exchanger will fail to...

Question 1 of 270705eccef9bbacbc34ba4d45610

A steam supplied heat exchanger will fail to maintain the designed quantity of heated liquid output if the __________. steam side shell absolute pressure is decreased heat exchanger drain is leaking

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Question 1 of 27070

A steam supplied heat exchanger will fail to maintain the designed quantity of heated liquid output if the __________. steam side shell absolute pressure is decreased heat exchanger drain is leaking

🔍 Key Concepts

• Heat transfer in a shell-and-tube heat exchanger (effect of steam pressure on steam temperature and heat transfer rate) • Condensate drainage (what happens if the drain leaks vs. if it is blocked) • Relationship between steam pressure, saturation temperature, and heating capacity

💭 Think About

• Think about how lowering the absolute steam pressure on the shell side affects the steam temperature and the driving force for heat transfer. Does this increase or decrease the exchanger’s ability to heat the liquid? • If the heat exchanger drain is leaking, what exactly is leaking out? How would that change the effective heating surface or the presence of condensate on the steam side? • Consider whether each condition (I and II) would reduce, increase, or have little effect on the exchanger’s ability to maintain the designed quantity of heated liquid output, not just its temperature.

✅ Before You Answer

• For statement I, verify how steam saturation temperature changes with pressure and how that impacts the outlet liquid flow at design temperature. • For statement II, be clear on whether a leaking drain tends to remove condensate effectively, or whether it causes loss of live steam and unstable heating conditions. • Check whether each condition would cause a significant reduction in available heat transfer (BTU/hr) to the liquid, which would directly affect the designed output quantity.