Pumping Capacity of 1500 Metric Tonnes Per Hour

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Tks,

Guru, Agreed I did not put the request corectly, my posting is asking for advise how can i do it , I have this idea of pumping around but do not want to use big pump due to starting current limit on the incoming supply. I intend to use 4 or more pump to get to the required capacity, i m not mechanically trained.

Plse to provide advise/idea if 4 smaller pump or more can do the same job to pump to that capacity.

20 questions is not a favorite game here.

Without knowing much more, or all the physical properties of the liquid, flow rate, power available, etc (all the information) no help here.

Go back to #1 with complete information handy and contact a pump supplier.

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Tks Lyn,

As said I have those numbers to work on for now, I will check with the pump people myself,

I post this so as to get some great guy who had a similar setup or close to or higher than, to share the experience, as this is a brand new setup, no other numbers available, I have the viscosity numbers , I had given the head height, target rate of flow, thats's is all I have for now, need to tune up the numbers as I gathers more info from the community, Once I got the the correct pump setup will work on the Amperage, than the projected pipe size, and what else may set-in, I will make mistake on the work up writing but i cannot afford to loose money.

Tks again Lyn for your comment, I agreed my shortcoming.

Just a few numbers:

A mass flow of 1500 metric tonnes heavy oil in one hour is a volumetric flow of about 27000 liters or 7100 gallons per minute.

This is some nice pumps you will need there. Dependent on your system you are looking at somewhere in between 1000 and 2000 HP pump power.

1500 metric Tonnes per hour, or 1,500,000 kg/hr is 417 kg/sec or just over 4083 Newtons per second. You say you are lifting it 15 meters, so the lifting energy is 4083*15= 61,250 N-m/s, or 61.25 kW, without even taking viscosity or energy losses into consideration.

You don't say what voltage you have available. That will determine the current required, but you are talking a significant current, in any case.

Tks dkwarner,

Voltage: 415VAC 50hz. Allowable current drawn 1000amp, may have to apply to the authority if required higher.

As said , this an exploratory idea which I intend to build from scratch, Has anyone you know built a pump around system, Tank-Meter-Tank configuration. The pumping rate as stated but want to use smaller multiple pump unit to acheive at the flow rate.

My knowledge on PD pump is that they move volume by looking at the pump curve. My suggestion is to run them in parallel to get the highest possible volumetric flow and at other times need to use one or two pump for low volumetric flow requirement.

I intend to use a frequency drive to get to the speed for the flow requirement, the duration shall not be more than 8 minutes at tha highest speed / flow rate.

Great , plse throw in as much data as required to make it perfect. Admit, the idea may appear to be "off-spec" but I want to explore and have the flexibility in the usage.

How did the telephone discussions with the pump suppliers go?

Be very careful and verify the numbers from dkwarner and IdeaSmith because they seem to be several orders of magnitude apart. I have not checked the numbers, since it isn't my job to do this but I would guess that IdeaSmith is closer to the power required to move the volume of heavy liquid.

Several pumps operating in parallel is a common scheme to move large volumes of liquid and keeping "in-rush" current to acceptable levels. You need to make sure the control system properly times the sequence of starting to prevent the smaller in-rush currents from overlapping, usually 10-15 seconds between pump starts is sufficient.

If you read carefully, I only calculated the lifting power (as a starting point, in case that was not obvious), and specifically mentioned that this did NOT include anything relating to viscosity or system losses. Clearly the total power required will be significantly higher. I have no significant knowledge relating to pumping viscous fluids, so avoided saying anything about it.

I do know that smaller pipe requires higher velocity, which means greater friction and turbulence, and suspect that even 4 12-inch pipes may be on the small side for that kind of volume.

It would not surprise me if the total power required was an order of magnitude greater than just the lifting power. 2 orders of magnitude, I doubt.

Thks to All.

I m glad that this has move forward, it definitely had lifted the confident, it's viable, need more contribution in the calculation.

I got some reply of using big shipping pump up to 1500mt/hr, I would still prefered multiple pump, starting small and may add another set till got to the target flow rate.

Hi CR community, plse to factored in more info.

Tks again for all the posting for now.

Being too lazy to actually run calculation for a problem with mixed SI and IP units. Just looking at the numbers two posters ran, there is a huge difference between 61 KW and 1000-2000 HP.

You are correct that the velocity of this suggested flow rate through a single 12 inch pipe is fast enough to be "whistling Dixie".