Cyclic service for vessels, Mechanical Engineering

Assignment Help:

Q. Cyclic Service for vessels?

The required service for all vessels shall include consideration of cyclic service. Batch operation vessels, for example, quite frequently fall into this category. The following guidelines are recommended as a starting point in the process of determining if cyclic analysis may be required.

Number of Cycles

Vessels should be considered to be in cyclic service, when the total number of cycles in (1)+(2)+(3) below will exceed 1000 cycles in the desired design life of the vessel:

1. The expected number of full range (design) pressure cycles, including start-ups and shutdowns.

2. The expected number of operating pressure cycles in which the range of pressure variation exceeds 20% of the design pressure.

3. The expected number of thermal cycles, where the metal temperature differential between any two adjacent points exceeds 50oF (29oC).


Related Discussions:- Cyclic service for vessels

About Transfer Function block, How can i change the normal function block p...

How can i change the normal function block parameter[1 1]=>(s+1) to (s-1)?

Compare otto cycle with diesel cycle, Compare otto cycle with Diesel cycle:...

Compare otto cycle with Diesel cycle: Sol.: These two cycles can be compared on the basis of either the same compression ratio or the same maximum pressure and temperature.

Cantilever beam - shear force diagrams, Cantilever beam - shear force diagr...

Cantilever beam - shear force diagrams: Illustrate the shear force & bending moment diagrams for the cantilever beam illustrated in Figure. Figure Solution

Define pinion cutter generating process, Define Pinion Cutter Generating Pr...

Define Pinion Cutter Generating Process? It is shown in diagram and it is same as rack cutter process, and instead of using a rack cutter it uses a pinion to generating the too

Laser weld overlay i cladding, LASER WELD OVERLAY I CLADDING This proce...

LASER WELD OVERLAY I CLADDING This process brings the metal surface to a substantially higher temperature than in the heat treating process and results in a thin molten surface

What is coating thickness, Q. What is Coating Thickness? The dry thickn...

Q. What is Coating Thickness? The dry thickness of the coating shall be checked by using a "micro test" magnetic gauge or approved equal which has been properly calibrated, at

Calculate size of the spring wire, A helical compression spring prepared of...

A helical compression spring prepared of oil tempered carbon steel is subjected to a load which lies between 400N to 1000N. The spring index is 6 and the design factor of safety is

Klein''s construction, what is the velocity and acceleration when connectin...

what is the velocity and acceleration when connecting rod and crank are mutually perpendicular?

Intrepretation of defects, INTREPRETATION OF DEFECTS Intrepretat...

INTREPRETATION OF DEFECTS Intrepretation is an important factor is controlling the quality of the product on economic levels. Sometimes for want of proper decision, proj

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd