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  • Users: francis_mechanical
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  1. francis_mechanical

    Cooling Water Supply Pump Challenge!

    Hi! I'll be posting the whole system, PID and Layout here, so that everyone will have fun. SOON, but for now. This power plant anyway will be very helpful to my community since we have a massive power shortage here. The plant will be run by hydrogen internal combustion engines. @curtis2004...
  2. francis_mechanical

    Cooling Water Supply Pump Challenge!

    @MikeHalloran yah. But I guess I made up my mind and finish this challenge. I just think that it would be very rewarding if I got this right. Thanks for the advice! @LittleInch "Also don't forget your pressurization tank / accumulator to keep the pressure up and allow compensate for the...
  3. francis_mechanical

    Cooling Water Supply Pump Challenge!

    @Artisi "For the total cost of a 10mw power station,the costs associated with 2 or 3 pump systems would be insignificant, not withstanding the costs and drama of a complete outage because 1 pump failed. " This is eye opener, thanks. I think I have more study to do. I'm always thinking about...
  4. francis_mechanical

    Cooling Water Supply Pump Challenge!

    @MikeHalloran, I'd like to post the diagram here but I don't want the topic to be diverted to other issues that people might see on the diagram. For now, is for the supply system of the cooling water, its sizing and arrangement. "Why introduce a single point of failure, or two, or three, into...
  5. francis_mechanical

    Cooling Water Supply Pump Challenge!

    @Artisi Yes, I also have the same idea with you, but my concern with the 2 supply pump system is economy. I'm also aware that using 1 system pump would put the entire plant at risk of failure if major damage of the supply pump is to occur. But for now, I'm gonna go with 1 supply pump,. But...
  6. francis_mechanical

    Cooling Water Supply Pump Challenge!

    @LittleInch, I never though about the unequal flow. I was just assuming as long as the areas are equal then fluid will flow as what Q=AV is talking about. (chuckle). I have an idea on how to solve the possible unequal flow of water (Figure 1 of the attachment). Although I cant (for now) back...
  7. francis_mechanical

    Fire Fighting Water Capacity (How much volume of water?)

    So I will be designing the Fire Fighting Water System of a 10 MW Power Plant. And I have to finish first the underground fire ring. But I can size the Fire Fighting Ring since I can't find a reference that will tell me how much Volume of water should I have to supply the fire water of the...
  8. francis_mechanical

    Cooling Water Supply Pump Challenge!

    @Artisi I have 26 engines, all with 550 KW rated power each. My calculated cooling water requirements is 88 GPM(US)/Engine The Power Plant will use this engines have a estimated capacity of 9 to 10 MW. @LittleInch, Yes, you are right, I tried the 13 engines configuration, and my pipe size was...
  9. francis_mechanical

    Cooling Water Supply Pump Challenge!

    I was sizing a pump that will supply cooling water to 26 diesel engines. The capacity of the pump is near 2600 GPM (Im new in sizing pumps) I was searching the internet to get a physical feel on how big this pump is. And 2600 GPM pumps are quite big (for me) The estimated size of the...
  10. francis_mechanical

    Radiator Cooler Design

    Greetings! I will be designing a cooling system for multiple engines. I wan't to have the jacket cooling water be cooled using a RADIATOR COOLER. The problem is I have a hard time finding reference resources on the internet. Please help me find this resources. This cooling system is for a...
  11. francis_mechanical

    ENGINEERING DOCUMENTS (PLEASE HELP)

    So I will be involving in the design of 10MW Diesel Power Plant (From Scratch) I already have experience in Piping Design but most of which is modeling and detailing. I now how to read PID, loading data, material specifications, vendor drawings and more. But now, I will be task to be the...
  12. francis_mechanical

    Pump Head Calculation (When to include the velocity head?) - NEWBIE

    In what conditions do I need to include the velocity head in determining the total head of the Pump i'm sizing?
  13. francis_mechanical

    Fire Fighting System Design (Newbie)

    Ok, so I have a layout/floor plan of a small power plant. I've already determine the Classes of Fire on each room. I should only have Class A and Class B fire. Now, since water is not recommended for class C, (fire originates from energized electrical equipment, particularly, household...
  14. francis_mechanical

    Jacket Cooling Water Bypass (Where/When to bypass?)

    How about this... http://files.engineering.com/getfile.aspx?folder=b426e0e6-8489-4ba2-b1e7-cc02a025a9a1&file=PID_RA-Model.pdf
  15. francis_mechanical

    Jacket Cooling Water Bypass (Where/When to bypass?)

    @romke i really wanted to as much as possible, provide constant amount of water (flowrate) on the heat exchanger both from the first circuit and the 2nd circuit. Im thinking I would have a huge change in cooling water temperature across the engine if I would supply less flowrate and I dont want...
  16. francis_mechanical

    Jacket Cooling Water Bypass (Where/When to bypass?)

    I just thought, maybe I can control the temperature of water leaving the cooling tower by reducing the flow of hot water entering the tower and still supply the same flow-rate of water in the pumps since the cooling tower has a basin.
  17. francis_mechanical

    Jacket Cooling Water Bypass (Where/When to bypass?)

    Hi! Here is a draft of the PID. You can see that its not finish yet. Since I have to study more about the system like... 1. Proper/Ideal position of the expansion tank (if necessary) 2. How to draw my idea on how do the temperature leaving the the engine would control the control valve. 3...
  18. francis_mechanical

    Jacket Cooling Water Bypass (Where/When to bypass?)

    I will be supplying a cooling water to an engine. I need to keep the water constant temp @ 30 degress celcius. My idea is to put a bypass after the supply pump and reciculate some of the water back to the heat exchanger to further cool the water. Is this a good idea? Can you recommend another...

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