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Hello, I would like any ressources and information about compressors...A field where I'm not so good. How do a compressor work, the most inportant information i have to know about compressors ad so on... The caracteristic curves as well, the real mean of adiabatic and polytropic...

Hello everybody, Is there anyone who knows where I could find a collection of articles named "Facts at your fingertips" that we find on a magazine called "Chemical Engineering" without making a subcription... Maybe there is a book that gather these good articles for example... Thanks a lot, Méli

Hello everybody, Is there anyone who knows where I could find a collection of articles named "Facts at your fingertips" that we find on a magazine called "Chemical Engineering" without making a subcription... Maybe there is a book that gather these good articles for example... Thanks a lot...

Hello, I'm novice process engineer. Can anyone advise me good books for design? A very simple, clear and educational with a lot of examples to begin slowly but surely... For the moment, I'm reading the GPSA, wonderful...Do you know other books ? Thanks a lot...

Hello everybody, I would like an advice: I'm going to buy the book: "Rules of thumb for chemical engineer" that looks very very interesting, I think it will be useful for me everyday... If anyone has this book, could you tell me more about it? Thanks a lot! Méli :o)

Hello, Can somebody tell me what is the difference between MAWP (for working pressure), MAOP (for operating pressure) and design pressure? For me, I think MAWP < MAOP < Design P, what do you think? Thanks a lot!

Hello, I have a problem to calculate a massic composition: I have 357.28 kg/h of a gas composed by: CH4 : 88.1859% (massic) CO2 : 10.1861% N2 : 1.6209% H2O : 0.0042% H2S : 0.0030% I will pass my gas in an adsorber (molecular sieve) to reduce elimante HO and reduce CO2 and H2S and I will have...

Hello, I would like to design an adsorption column (tower?) for CO2 adsorption and for that, I'm looking for the suitable kind of adsorbant for CO2. For the moment, I have found some articles speaking about zeolite 13X (?), zeolite 4A (?) and activated carbon, but I didn't found any...

I am reading right now the API 520 that I found very interesting... Well, in this document, they specify a difference between the MAWP and the design pressure; It is said that "MAWP is normally greater than the design pressure". Is it the same rule everywhere I go or could it change from company...

Hello everybody! First, I introduce myself: I'm a novice process engineer working on a gas company since soon 3 months... I used to ask my questions on chemical process engineering forum. I would like to ask a new question about "piping classes origin", I have found an interesting discussion...

Hello, Have you some information on how to do a blow-down study? I mean all the steps to follow and so on... Is there any useful site or pedagogical ressources on the web? Thanks a lot! Méli :o)

Hello everybody! Can anyone tell me why the primary rating are: 150# 300# 400# 600# 900# 1500# 2500#? Why there is not 200# or 1000# or any other number...? How did we get these numbers? I'm sure there is an explanation like for the ND of pipes (coming from Renard series). Thanks a lot! Méli :o)

Hello, I have to complete some datasheets with all the design calculations I have. For this, I have to specify all the nozzles and instruments that are on my equipments: Nozzles are indicated by N1, N2, N3...and so on...Logical: N for nozzle...:o) Instruments like "level gauges", "Pressure or...

Hello, When one wants to design any equipment, we define the OPERATING (which are the real ones) and the DESIGN (which are with 5% or 10% more to the operating ones) values of T and P. I thought that : OPERATING values = DESIGN values OVERDESIGN values = DESIGN values + 5/10% But I think...

Hello! I have the solution, but just to be sure: Could you remember me the conversion from weight percent on to mole percent (for gases)? Thank you so much!

Hello everybody, I would like to know what is ASTM A105 and what does RJ and RF facing mean for a flange? Also what does the RJ and RF letters mean? For example, I found out that the type WN means Weld Neck... Sorry for my bad English and mistakes... Méli :o)