Operating Pressure Relief Valves

WholesomeMaroon avatar
WholesomeMaroon
·
·
Download

Start Quiz

Study Flashcards

Questions and Answers

Which term is used in the ASME BPVC Section I to describe an automatic pressure relieving device actuated by the static pressure upstream of the valve and characterized by full-opening pop action?

Safety valve

Which term is used in the ASME BPVC Section I to describe an automatic pressure relieving device actuated by the static pressure upstream of the valve, which opens further with the increase in pressure over the opening pressure and is used primarily for liquid service?

Relief valve

Which term is used in the ASME BPVC Section I to describe an automatic pressure-actuated relieving device suitable for use either as a safety valve or relief valve, depending on application?

Safety relief valve

According to the ASME Section I code, how many pressure relief valves are required for a boiler with more than 0.47 m2 of bare tube water-heating surface?

<p>At least two</p> Signup and view all the answers

What is the minimum relieving capacity of a pressure relief valve for all types of boilers?

<p>The maximum designed steaming capacity at the MAWP of the boiler</p> Signup and view all the answers

Which method is NOT described in PG-69.2.1 for determining the relieving capacities of pressure relief valves?

<p>Four valve method</p> Signup and view all the answers

According to the text, what is the main principle for boiler PRV design?

<p>The relieving capacity must be sufficient to match steaming capacity.</p> Signup and view all the answers

According to the text, how is the minimum required relieving capacity for PRVs calculated for a watertube boiler?

<p>By adding the capacity for boiler heating surface and the capacity for waterwall heating surface.</p> Signup and view all the answers

According to the text, how is the steaming capacity of a boiler calculated given the heat of combustion and the amount of fuel burned?

<p>By multiplying the amount of fuel burned by the heat of combustion.</p> Signup and view all the answers

According to Table A-44, what is the PRV capacity required for each square meter of boiler heating surface in a pulverized fuel-fired watertube boiler?

<p>49 kg/h-m2</p> Signup and view all the answers

What is the minimum combined relieving capacity required for the steam drum PRVs in the given scenario?

<p>9840 kg/h</p> Signup and view all the answers

According to PG-68.2, what percentage of the total required capacity must the pressure relief valves on the boiler (excluding the superheater PRVs) have?

<p>75%</p> Signup and view all the answers

What is the capacity available in the superheater PRV?

<p>1000 kg/h</p> Signup and view all the answers

What is the minimum required capacity for waterwall heating surface in the given scenario?

<p>7410 kg/h</p> Signup and view all the answers

According to Appendix A-12, how is the maximum quantity of fuel that can be burned per hour determined?

<p>CxHxO.75</p> Signup and view all the answers

More Quizzes Like This

Operating Pressure Relief Valves
25 questions
Operating Pressure Relief Valves
15 questions
Gas Turbine Operation and Performance
15 questions
Use Quizgecko on...
Browser
Browser