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  1. adammal44

    How to estimate the equipment cost?

    If you are polite and friendly, some companies will give you a small amount of help relative to costing, even though you're just a student. It's worth reaching out to them.
  2. adammal44

    How does isolation valve induces vibration?

    Do you have any additional information? Is the pump running correctly (right flow/pressure)? It could be swirling effects, due to odd/changing amounts of fluid entering your branch tee into the pumps. It could be the pumps churning to find an operating point. As your pumps move up-and-down...
  3. adammal44

    Minimum Flow Issues, Seals Failing Quickly...

    Based on your pump curve, it seems pretty straightforward that you're seeing issues with over-recirculation. At the minimum, you could be having troubles with vibration and flow irregularities. You could also be aggravating NPSH(available) issues if the over-recirculation causes overheating of...
  4. adammal44

    cloth resistance for water pressure

    What type of cloth do you plan to clean? What thickness of cloth? How many washings do you want the cloth to be able to endure?
  5. adammal44

    Gas cooling

    What types of gases? What is driving your end requirement of 30°C? Your HVAC ducting? You may not be able to use those anyways, depending on the types of gases you're using.
  6. adammal44

    delivery pipe

    Gotcha - didn't realize that he had gotten feedback previously. OP - please provide links to associated posts if they pertain to a similar system (or copy in the relevant information). Edit: Just read your previous post - http://www.eng-tips.com/viewthread.cfm?qid=423001.
  7. adammal44

    delivery pipe

    Interestingly, this one of those questions that can actually be answered with very little information. Generally, Roman, positive-displacement pumps will deliver whatever discharge pressure is required to meet their fixed flow rate. The only way in which potentially 3" delivery pipe would...
  8. adammal44

    Zeolite Clogging Eductors in Storage Tank

    We use zeolitic media for the removal of cesiums in our process plant. Because of hazards in handling the media after exhaustion, we sluice the spent zeolites to a large storage tank (~7 m³) for some of the radioactivity decay and for an appropriate waste container to be available. We flush...
  9. adammal44

    EPANET: How to do a 2000 gpm Fire Flow Demand with 20 psi Minimum Pressure

    There aren't alot of options here to reduce friction. You can try to get smoother pipes, but the friction coefficient won't move the needle too much. You could try an alternative suppression fluid with a lower density, but I'm not sure it's allowed by the fire code. I don't understand your...
  10. adammal44

    Why is NPSH can not be determined if the suction is flooded (?)

    Ask your vendor to what ambient air temperature and tank level that your pump can safely run.
  11. adammal44

    Do Diesel Fuel Oil Storage tanks for Emergency DGs need be built to ASME BPVC III?

    In the UK Generic Design Assessment (GDA) process, there are very few firm requirements. Through the ALARP process, you determine the optimal approach through consideration of safety significance, relevant good practice, and the claims/argument/evidence (CAE) approach. If you're using ASME...
  12. adammal44

    pipe materials choice

    ASME Section III, Division I is an option.
  13. adammal44

    Concrete Types for a Nuclear Power plant

    EPRI is an abbreviation for Electric Power Research Institute. It is a collaborative organization where utilities jointly fund research initiatives that have common interest in the industry. Many of their reports have been released to the public.
  14. adammal44

    Concrete Types for a Nuclear Power plant

    Ah, you're looking for the concrete consumption amounts (effectively, amount of bulk commodities used during construction). Your best bet on this might be searching for publically-available EPRI reports. Most such reports for actual projects will be proprietary.
  15. adammal44

    Concrete Types for a Nuclear Power plant

    I may have some pouring charts for basemats and structural modules (nuclear island, non-containment) laying around that are public-space. Is this what you're looking for? Or are you looking for an example of a concrete containment building pouring chart? What are you actually trying to do? In...
  16. adammal44

    Concrete Types for a Nuclear Power plant

    US NRC RG 1.136 is the relevant US NRC regulatory guidance on concrete containments. Other countries will have different rules - most likely wherever you're at will accept the US requirements after reconciliation with your local rules. https://www.nrc.gov/docs/ML0703/ML070310045.pdf
  17. adammal44

    Concrete Types for a Nuclear Power plant

    Lots of great design information about nuclear power plants is provided to the public as part of plant licensing in the US and United Kingdom. As an example, the design certification documents (DCD) for new plants are a good source (https://www.nrc.gov/reactors/new-reactors/design-cert.html) or...
  18. adammal44

    what kind of valve we should chose to install automation & batching system

    You need to review your specific application with a valve vendor. Some of the tradeoffs of various valve types: i.) Flow Throttling: Some valve types (globe/needle) allow for fine throttling of flow from 0-100%, others are more open OR closed with little ability to throttle flow. ii.) Leakage...
  19. adammal44

    Is it legal for engineering firm to pay referral fees for business?

    In general, refer to your local board for licensure of professional engineers. Note that noone can help you with this question unless you list your location!
  20. adammal44

    Geotech Service Offering without the CMT

    In my experience, nuclear new build always has a separate geotechnical investigation firm and CMT firm. Two reasons: 1.) Long timelines. You almost always bid them out separately, because the geotech investigations will drive huge changes to the scope. 2.) Division of Responsibilities...

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