If PWHT for pressure vessel is given according to ASME Sec. VIII Div-1 below 25.4 mm. Then how to decide heating rate, cooling rate and holding time??

02 February 2016 0 6K Report

If shell thickness is 9mm, and PWHT for vessel is given as process requirement then how to decide heating rate. If we calculate heating rate for this is 626 c/h. But heating rate should not exceed 222 c/h. Then how to calculate it???

Badges
Science topic

More Rohit Mali's questions See All

How to export the Bill Of Material (BOM) from AutoCAD to excel???

01 February 2016 725 4 View

How to solve maximization problem in MATLAB?

I have solved that problem using optimization toolbox and converted maximization function into minimization by multiplying -1 to all equation. But in optimized values that function is showing...

04 May 2015 1,658 1 View

Which factors does heat generated due to spark gap depends on?

When we pass the current through coil heat generated is calculated by Current^2*Resistance*time.So heat generated in coil depends on current,resistance and time. Like, on which factors heat...

02 March 2015 1,699 4 View

What is the effect of Alpha (distance from center point) in Design of experiment?

In case of Response Surface Methodology with Central Composite Design design what value of alpha is preferred? What is the effect of high value of alpha on DOE?In MINITAB17 how to change alpha value.

01 February 2015 5,372 7 View

How can I test aluminium powder to get its material properties like density, thermal conductivity, electrical resistivity, specific heat etc.?

Experiment in Powder Mixed Electrical Discharge Machining

31 December 2014 3,650 3 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

How to assess the osmotic power of a substance?

Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...

06 August 2024 977 1 View

What should be the sample container for the hydrothermal reaction in a microwave reactor at 180 °C for 10 min at the heating rate of 5 °C per minute?

Suggest one of them 1. Teflon-lined stainless steel autoclave: 2. Alumina (Al2O3) ceramic container

30 July 2024 7,326 1 View

What should a Mechanical Engineering PhD scholar focus on during their PhD to enhance their chances of securing a postdoctoral position?

29 July 2024 7,714 4 View

May I know the exact Quartile of the journal- Advanced Engineering Materials (Wiley) for material science category?

In some data sources it has been grouped in Q1 and some shows it is Q2.

29 July 2024 4,227 2 View

Ternary in Electrical Engineering?

Dear Research Community I would like to invite Elctrical Engineering specialists to solve problems related to Ternary Algebra or tripple sets I have an algorithm that places in relation three...

28 July 2024 5,771 2 View

What topic or subject does Production Engineering need to address more?

Contemporary scores or innovations in scientific approaches. Hybrid methodologies, emerging themes and cross-cutting issues?

27 July 2024 648 3 View

How should operational parameters be selected when developing a pore-free laser welding technology?

There are three operating parameters - the laser power, the diameter of the focus spot and the scanning speed. It is necessary to obtain a seam of a given depth without pores. What parameter...

27 July 2024 7,168 2 View

Can you recommend provider Intermediate laboratory test for hydrocarbon, polyethylene & polypropylene?

Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...

25 July 2024 8,108 0 View