Difficulty: Easy
Correct Answer: 1000 atmospheres
Explanation:
Introduction / Context:
Compressors are used across industry to raise gas pressure. The achievable delivery pressure depends on compressor type (centrifugal, screw, reciprocating), staging, inter-cooling, materials, and application. Knowing realistic pressure ceilings helps in selecting equipment.
Given Data / Assumptions:
Concept / Approach:
Centrifugal and rotary compressors excel at high flow, moderate pressures; reciprocating compressors in multiple stages with intercooling can achieve very high pressures. Typical upper limits cited in chemical engineering references are on the order of hundreds to about a thousand atmospheres for specialized service.
Step-by-Step Solution:
Identify high-pressure class: multistage reciprocating units.Compare options: 10 atm (too low), 100 atm (common), 250 atm (high), 1000 atm (upper industrial limit).Select 1000 atm as the representative maximum in the list.
Verification / Alternative check:
Manufacturers’ data and design texts document reciprocating compressors used to several hundred bar (approaching 1000 atm in specialized cases).
Why Other Options Are Wrong:
Common Pitfalls:
Assuming all compressors have the same limits; overlooking staging and intercooling, which enable high discharge pressures.
Final Answer:
1000 atmospheres
Discussion & Comments