Hi All,
There is something lingering in my head lately regarding the liquid vapour equilibrium.
To be honest, I am not too sure if the problem that I am going to ask here is about this topic.
There is a pressurized cryogenic liquid at 6 barg under operating in a Low Pressured Cylinder (LPC)...
Hi Guys!
I would like to clarify if stainless steel material defined as alloy steel ?
As far as I concerned, technically all the steels are considered as alloy steel since they are content other elements besides carbon and ferrous (which is carbon steel).
For example;
Stainless steel - Iron...
HI All,
There was a thermal bending on a skid base structure, basically the both end of the skid base has a bending towards upwards which is similar to the diagram below.
I belived it is caused by expansion when hot and to shrink when cold steel.
I was wondering why the skid structure...
Hi all,
Is a relief valve allowed to use in PV since it might not be able to the event of sudden pressure rise?
Definition of relief valve in ASME: -
A relief valve is a pressure relief valve actuated by inlet static pressure which opens in proportion to the increase in pressure over the...
Hi All,
Do you have any idea why the cylindrical vessel do not consider buckling in the calculation ?
Is it already been considered in the thickness formula in UG-28 as per ASME section VIII Div. 1 ?
Thanks in advance!
Hi All,
As you all know, during hydrotest, the pressure might drop dramatically in the pressure vessel when the ambient temperature reduced (eg. in a rainy day) accordingly. Do you guys know the theoretical reason behind?
This is my understanding..
According to the thermodynamic first...
We will come across retention time when we are designing the two-phase separator.
1. Could anyone here please further explain the definition of retention time?
2. How do we get the value of retention time ?
3. Can we use aspen hysys to size the two-phase separator?
Thanks in advance!
Hi All,
Does anyone know why industry practice weld toe to weld toe distance have to be more than 50mm?
What are the concerns if the weld distance is lesser than 50mm?
Thanks in advance!
Hi All,
There is a 600 N/m distribution load applied to the same size of channel but in different configuration. Herewith attached the sketch for your reference. Which configuration is better?
In my opinion, it will be more or less the same since the contact area (Highlighted in yellow...
Hi All,
As per my understanding, preheat is to achieve slow cooling rate and remove all the moisture in the material to avoid the hydrogen induced cracking.
Preheat is required when the thickness of material is more than 32 mm (As per ASME Section VIII Div 1). Since preheat is so important...
Hi All,
In normal industrial practise, we will use Roark's Formulas to design a rectangular tank. However, I tried to use Staadpro to run the rectangular tank design, but the results show what I have calculated in the manual calculation from Roark's Formulas failed.
Could anyone good at...
Hi all,
Could please tell me why the plate allowable deflection is considered from the nominal thickness/2 ; whereas the I-Beam allowable deflection is considered from the overall length/200 (depends on code/requirements)?
Is it related with the shape design of the material ?
Thanks in advance!
Hi All,
In standard practice, we will carry out the hydro-static test (HT) for equipment such as vessel and piping. HT pressure is equal to 1.3/1.5 x design pressure which specified in the codes and standards.
When are we allowed to do the pneumatic test?
Thanks in advance.
Regards
Sam
