Idea Transcript
All About Mechanical Engineering Category Archives: Uncategorized SEPTEMBER 6, 2011 · 9:29 AM
Process Piping Pressure Calculation : B31-3 B 31.3 is an ASME code for Process piping, Multiple time we come across situation, where we need to calculate the design pressure for a pipe. In such cases, ASME VIII-Div-1 seems helpless, and B 31-3 comes for rescue. Clause 304.1.2 talks about Straight pipe under internal pressure,
Where, P > Internal design pressure D > Outside diameter of pipe S > Stress value of material as per table A-1 E > Quality factor from Table A-1A & -1B Y > Coefficient from table 304.1.1 Compare equation 3a with ASME VIII-1 Formula (UG-27) The formula is completely same, except factor PY against 0.6 P! Y factor varies from material & Temperature, which varies from 0.4 to 0.7 As I’m working on one of the project, where I’m manually doing calculation, I thought this will be fastest way to share! Keep reading!
Report this ad
Report this ad
Share this: Twitter
Facebook
Email
Google
LinkedIn
Like Be the first to like this. SEPTEMBER 2, 2011 · 5:33 AM
Code Comparison : Discussion:1 Scope & Responsibility: Let’s start with comparing the scope & Responsibilities for various codes. Following table will give an overview Characteristics
ASME VIII-Div-1
EN 13445
GB-150
Scope
Ref ASME VIII-1 U-1
Refer EN 13445-1: 2009
Refer GB-150 : 1-1.1
Pressure Not exceeding 20 MPa U-1(d)
No limit on pressure
Pressure not exceeding 35 MPa
Design by Formula
Design by Formula & Design by
Design by Formula
Minimum pressure 15 psi (g) [1 bar(g)]
Minimum pressure 1 bar(g)
Minimum pressure 0.5 bar(g)
Minimum -ve pressure 15 psi (g)
Responsibility
Analysis
Minimum -ve pressure 0.2 bar(g)
[1bar(g)]
Minimum -ve pressure -0.5 bar(g)
Ref VIII-1 U-2 (b), UG-90
Refer EN 13445-1: 2009
GB-150 : 3, Clause 3.2.2
Responsibility of Manufacturer to
Responsibility of Manufacturer, counter
Responsibility of Manufacturer & Designer
design complete
signed by
to design
vessel as per requirements of Code
notified body (Independent agency)
complete vessel as per requirements of
19 responsibilities with Manufacturer,
Annex – H to be filled & Signed
Code
14 with AI Next Topic Material & Properties! Keep Watching!
Share this: Twitter
Facebook
Email
Google
LinkedIn
Like Be the first to like this. SEPTEMBER 2, 2011 · 5:19 AM
Code Comparison : A Startup With my next feeds, I’ll be comparing following Code on various aspects European Code : EN 13445 American Code : ASME Section VIII Div. 1 German Code: AD : 2000 Chinese Code: GB: 150 Keep watching!
Share this: Twitter
Facebook
Email
Google
LinkedIn
Like Be the first to like this. JUNE 6, 2011 · 11:15 AM
Welcome to My Blog : Its All About mechanical Engineering Welcome to my Blog! The whole purpose of this blog is to share my know how, that I’ve gain over the year in diffrent industries, those I get exposed to! I’ve worked across the cross-section of Mechanical industry, from Oil and gas to Food & Beverages to Filtration. I’ll be sharing my Design know-how in process, pressure vessels, heat exchangers, Industries and for sure my experience. In my way down the lane I’ve also developed lots of tools using Visual basics, Excel etc… and i’ll be sharing some teaser too for your view, and if anyone want any help, please don’t hesitate to ask for that. do Ping me. you can also visit my another blog http://sumitwaghmare.blogspot.com/, this blog is all about mechanical engineers, which finally i like to merge with WordPress. Do visit for more updates. Next, I’ll be sharing some intresting insight i got when i tried to compare international codes for Pressure vessels.
Share this: Twitter
Facebook
Email
Google
LinkedIn
Like Be the first to like this. MAY 28, 2011 · 3:53 AM
Pressure Vessel Codes & Comparisons After getting my self stablaized in new company… now i’m evaluating the world around. Filtration is the business, which is common to many needs, and hence it has been seen across the continent Which brings me to todays discuss, short but sweet, and as usual with a promise to update you more as i learn more about this. From Pressure vessel point of view, suddenly I’m exposed to number of Code of construction, which includes the old daddy ASME, PD-5500, AD-2000 and new comer like EN 134445. the new code i’m now exposed to is GB-150! How many of you know this code? and importance? GB-150 is Pressure vessel code for Pressure vessels in China! it very closely follows ASME, but has its own style! and its governed by Government. In next few days, i;ll be sharing my finding as i’m all set to compare all these codes. As an Indian, i like to as Indian Code for pressure vessel IS 2825. mostly its requirement by Gov. agency, but ASME is well accepted here in India, and IS 2825 closely follows PD 5500. in my next post i’ll be sharing more about the comparison of three codes, ASME, EN & GB keep reading & Posting!
Share this: Twitter
Facebook
Email
Google
LinkedIn
Like Be the first to like this. FEBRUARY 10, 2011 · 9:23 AM
Weld – Defects We talk about type of welds & weld joints, the talk on welding will be incomplete if we don’t talk about weld defect! Some weld defects are visible, some are visible with aide & some are invisible and need extra process to reveal them. Before we go into process of different methods to see those defect, one must first know what are those defects? Let me show you some defects & with their names Spatter
Incomplete Fusion
Incomplete Penetration
Overlap
Porosity
Undercut
Underfill
Some are Visiable in Radiography! Burn Thru
Cluster Porosity
Excessive Reinforcement
External Undercut
Internal Undercut
lack of penetration
lack of fusion
Porosity
Suck Back
Tungsten Inclusion
in my next post, will discuss, i ndetail about the Methodology to see these cracks!
Share this: Twitter
Facebook 14
Email
Google
LinkedIn
Like Be the first to like this. FEBRUARY 4, 2011 · 5:43 AM
Good Informative Welding Site http://www.millerwelds.com/resources/dictionary.html http://www.tpub.com/content/construction/14250/css/14250_55.htm http://www.iiwindia.com/pdf/ASME_&_ISO_EN_Welding_Position_Comparison.pdf http://www.gowelding.com/wp/asme.htm http://www.arcraftplasma.com/welding.htm
Share this: Twitter
Facebook
Email
Google
LinkedIn
Loading...
All About Mechanical Engineering Create a free website or blog at WordPress.com.