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Hi I have a question about where to take the water for desuperheater purpose. Attached you will find a schematic of 3 level control strategy for a water tube boiler and it is shown 2 cases: Case 1 I take the water for desuperhetaer after the FT and FV for boiler feed water Case 2 I take the...

Hi! Currently where I´m working, I have already calculated the minimum thickness required as per ASME VIII DIV 1 and the minimum thickness is 38 mm and the plate thickness was for head forming was purchased in 1.625inches (41.275 mm). After forming, we checked thicknesses on the formed head and...

Hi! I am looking for a engineer to contract as external supplier for the procesos design of a Sonic Flare tip (ir is for an elevated Flare) with múltiple exit points and variable capacity, I mean, a wide range of high pressure low flow to high pressure high flow. Thanks RS

Hi! I´m performing some static analysis on SOLIDWORKS SIMULATION but I have the following problem: 1.- The item is a section of a vessel and is going to be only under internal pressure. The problem I have is that if I use ASTM A36 (material precharged in solidworks library) I have results that...

Hi! I have a Waste Heat Boiler with a steam production of 50,000 kg/h of saturated steam. I´m choosing to install 2 PSVs on steam drum. Regarding flow capacity, I cannot find the support of ASME CODE where indicates me that, I found on PG-67 BOILER, PG-67.1, the following: PG-67.1 Each boiler...

Hi! I try to understand one point from a UOP specification about FIRED HEATERS. We have a project for supplying 2 connected Fired Heaters (Fired Heater No.1 radiation box at the top will have a duct which will be connected to the duct of the Fired Heater No.2 but this connection is below of...

Hi! I´m trying to calculate how much gas is required to burn 100% and destroy H2S from an acid gas. I do not know what considerations are required...I mean, if I need to achieve some temperature to destroy H2S or only having a combination of acid gas + helping gas and achieves a LHV of more...

Hi! I have the following problem: 1.- I have an horizontal cylindrical vessel with following thicknesses in body and heads and nozzles: 3/4", 1-1/2", 2". Material: SA-516-70 Killed. This equipment will be PWHT performed. The vessel is completely welded (circumferential and longitudinal welds...

Hi! Currently I`m trying to make an analysis in FLUENT 15.0 where I have a pipe with one inlet (12in diameter), a length of the total pipe of 10 ft, and at the end the pipe it has 4 pipes with a diameter of 4in. The fluid is air and I know flow and also I know the pressure at pipe inlet. The...

Hi! I have already searched in ASTM the properties (Yield Strength, Yield point, etc) in order to see if a tubing of ASTM A513 can be used as support part in an enviroment where air is 220°C (428°F) but no results I found. As not only this tubing will serve as support but also as a road for a...

Hi! I have the following situation: -In the company where I am, It manufactures head vessels. I have a client that sent us a Purchase Order of manufacturing 30 tank heads (diameter of the head is 122.25 inches). The client supplied all material (plates of 1/2" thickness - 8ft x 40ft ASTM 572...

Hi! I have the following situation: I have a pilot which we added a flame rod (kanthal material)for detection flame. The flame rod is crown rod and the flame relay is the fireye MBPF-1001. The problem that I have is when we connect (belden wire) the MBPF-1001 to the flame rod "spark plug or...

Hi! I´m trying to find a COLD DRAWN SEAMLESS STEEL TUBING for 2-7/8" O.D. 3/16" wall but no success. The USA suppliers that I have found, have just offered me the same size of tubing in DOM (DRAWN OVER MANDREL). Can you give me a list of USA suppliers where I can get the CD SEAMLESS STEEL...

Hi! I´m searching if it is possible to get plates in SA 516 GR. 70N with HIC? Thank you Rolander

Hi! I have the following problema (see attached file) On figure 1.0, you can see the system that is formed by two ítems, one of the is like a cap where it is going to be opened due to wáter comes to the system (see figure 2.0) In external part of cap, it is a pressure of 2 kg/cm2g that has to...

Hi! I have a boiler that has a superheater. After this superheater, there is a pipe line that goes for a X process. Before that, there is a branch for a vent line. The total lenght of this branch is like 3 meters. This Brand has the following components: 1.- 6"Ø Pipe 2.- 1 Gate Valve 6"Ø Manual...

Hi! I have a problem and it is the following: There are 3 plates of 20cm x 20 cm x 10cm (for refractory) , 5cm (for insulation), and 1.9cm (for Shell)...as per attached image. In one face, the hotter face, there is a temperature (ti) of 1000°C. Taking into account the following thicknesses of...

Hi!!!! I´m trying to make a thermal study in SOLIDWORKS SIMULATION. These are two plates (carbón Steel) separated in X distance. Air or space is between these two plates. The plate 1 will be heated at 800°C on its surface and I want to know the final temperature on plate 2 surface. (see...

Hi!!! I´m searching the following data for ASTM A 516 grade 70: -Thermal Conductivity -Metal density -Specific Heat I´ve searched in sect 2 of ASME but I just got the termal conductivity (I think is material group b) and I found that this value is between 26 to 20 btu/hr*ft2*F depending of the...

Dear Sirs! I know that when you have an electrical enclosure (hoffmann, adalet, etc) you can not put in the same box an ignition device and a signal device together. My target application is the following: -I want to put an ignition transformer and a flame relay in the same box (not each box...