PSV Sizing Criteria
PSV Sizing Criteria
(OP)
Hi,
I would like to size psv for, Description: dear sir, we required psv for air receiver of 2.0 m height and 1.5 m ID , 6 mm shell thickness and 600 mm grade height. how to design psv for this criteria? air is instrumental air,set pressure:-7.00kg/cm2g
could you pleadvise me what criteria must be used for this vessel.
Thanks
I would like to size psv for, Description: dear sir, we required psv for air receiver of 2.0 m height and 1.5 m ID , 6 mm shell thickness and 600 mm grade height. how to design psv for this criteria? air is instrumental air,set pressure:-7.00kg/cm2g
could you pleadvise me what criteria must be used for this vessel.
Thanks





RE: PSV Sizing Criteria
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
RE: PSV Sizing Criteria
If the maximum rate of the compressor is 100 Nm3/h then the required relief valve capacity is 100 Nm3/h.
This would be a blocked flow case.
RE: PSV Sizing Criteria
I agree that in order to size a safety valve you have to think through the possible scenarios, in this case is shouldn't be too difficult.
If it is possible to close the outlet and this way exceed the design pressure, which I assume is 7 bar(g), then you have to consider what the possible incoming flow is in this scenario. If the whole compressor stream can be supplied to this tank then this is the flow you need to size for. If the valve is unreasonably large this has to be compared to other ways to solve the issue.
Drex
RE: PSV Sizing Criteria
RE: PSV Sizing Criteria
I am what I am by His grace
RE: PSV Sizing Criteria
Thanks for your valuable inputs.
10815L