Hi All, I am trying to model an EJ using the vendor catalog and drawing provided by the vendor. The vendor has provided weight of the EJ assembly. I am trying to understand how to incorporate that weight of the EJ in my analysis. I was thinking CII takes care of weight itself considering size of...
Hi fellow engineers. A pump supplier has provided us a vent with API Plan 13 for an API 610 vertical inline OH3 pump. I did not know there was a requirement of a vent. Do we know why it is required and can we blind it off? Thanks.
Hi Fellow Fire Professionals,
I am working on designing a deluge spray nozzle for a sphere holding hydrocarbons (BLEVE risk). The client has their own design of installing an umbrella type upright spray nozzle at the top center of the sphere. Once the deluge valve is activated, the water will...
Hi fellow experienced Engineers,
I am doing a stress analysis for an exsiting piping connected to an ANSI horizontal pump that has given allowable nozzle loads / moments for the suction and discharge nozzle. I am consistently getting very high Fb and Fc for the operating cases (high temp and...
Hi fellow members. I am specifying a camlock Type-A adaptor threaded to a CS pipe nipple for firewater application. The adaptor is there for the vac truck to connect to whenever line draining is required. The camlock Type-A adaptor is only available in brass, aluminum or SS material. My question...
HI,
I am trying to fill out a data sheet for a PD rotary (gear type) pump needed for a client. The product is wax liquid with a viscosity of as high as 2500 cP at 212 F. I know the required pressure at the equipment inlet where the pump has to feed to, so I am trying to back calculate what the...
Hi,
I am working on sizing an Emergency Vent [EV] for an API650 atmospheric storage tank built using API 2000 standard. I understand that API 2000 gives guidance in terms of capacity required for the EV. However, after I am done sizing the EV (per API 2000), next step is to determine the right...
Hi fellow members. I have recently been working on a project where we are engineering a new foam system to be incorporated into the client's existing firewater system. This is to have a foam-water solution for effective firefighting application. We are going with an atmospheric storage tank with...
HI. I am working on a project where we are evaluating if a ULC S601 designed diesel storage tank (supplying fuel oil to the diesel engine placed in the same room) is suitable for indoor installation or not? As per ULC S601, installation of such tanks shall be in accordance with National Fire...
Hi NFPA fellow members,
I posted this question in Mechanical piping forum as well but posting it here as I got to know about this forum a little later. The link to that thread is as mentioned below:
Link
I am working on designing a wet pipe fire sprinkler system for a small room and I am...
Hi Fellows,
I am working on designing a sprinkler system and have encountered an issue regarding how to classify the obstruction as and which NFPA 13 rule would apply to it. The obstruction is as shown in the picture below:
Can anyone please guide me how to space sprinklers around this...
Hi fellow members.
I am working on designing a wet pipe fire sprinkler system for a small room and I am using "Fluidflow software" to perform the hydraulic calculations. I am stuck at a very simple concept but I need your help in clarifying that. Sprinkler manufacturers recommend that the...
Hi everyone. I am currently performing the hydraulics calculation as per NFPA 13 and NFPA 30, as the subject wet-sprinkler system is installed in an indoor liquid chemical storage area. While looking at the notes for NFPA 30 16.5.2.9.3, it says that the "sprinkler operating gauge pressure shall...
Hi Fellow Senior Engineers. I am working on evaluating a pressure vessel made out of Cast Iron (SA-278 Cl 35) material. I have performed the analysis for evaluating thickness of the shell using ASME Sec VIII Div 1. However, since the head is flat with internal ribs (please see attached pics for...
Hello. I am trying to perform Stress Linearization as per ASME Sec VIII Div 2 Part 5 rules for Plastic Collapse failure check for the first time and I was looking forward to some guidance. I have gone through the past discussions on the subject and the formulas to perform the stress...
Hi Everyone. I have currently been assigned with having one of the steam dryer drums registered in Canada. The double drum style dryer works using steam flowing inside the drums while heating the outer surface. The condensate from the cooled steam is then transported back to the boiler. The...
