When refrigerant exits the metering device, what state is it in?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the SkillCat EPA Universal Test with our comprehensive study resources. Use flashcards and multiple choice questions for effective learning. Get the edge for your certification!

Multiple Choice

When refrigerant exits the metering device, what state is it in?

Explanation:
The main idea here is that the metering device throttles the refrigerant, dropping its pressure while leaving its enthalpy roughly the same. Starting as high‑pressure liquid, it exits the device as a low‑pressure liquid (often still subcooled). The refrigerant then enters the evaporator, where it absorbs heat and begins to vaporize. Vaporization occurs in the evaporator, not at the metering device outlet. So the state leaving the metering device is a low‑pressure liquid.

The main idea here is that the metering device throttles the refrigerant, dropping its pressure while leaving its enthalpy roughly the same. Starting as high‑pressure liquid, it exits the device as a low‑pressure liquid (often still subcooled). The refrigerant then enters the evaporator, where it absorbs heat and begins to vaporize. Vaporization occurs in the evaporator, not at the metering device outlet. So the state leaving the metering device is a low‑pressure liquid.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy