Morning,
Found out yesterday night that I have been messing up between the 50 Hz en 60 Hz curves myself. Sorry for the confusion.
According the manual and drawings, the pumps has two stages. As for the impeller diameter, I have attached the documentation of the pump that is used on board for...
Good afternoon,
So I am back on this research project. Answering LittleInch his questions:
I am 100% certain the pump is running 60Hz as the whole ships grid is 60 and with the current measurements I also measured 60 Hz. The curve I attached in my first post is also the 60 Hz (1750 rpm) curve...
Hello all,
It has been some time, have been busy with normal work. I've had some time to do some more measurements on the system.
Took a clamp meter to measure the current of the electromotor, measuring around 15 amps.
I also timed a pump run (exactly 1 minute) and measured the height the...
Good morning,
Thanks for all your thinking with me.
This hydrophore system is used for the potable water supply on the vessel & the above mentioned pressures are gauge pressures.
The water is around 15 ~ 18 degrees celcius and there is an average water consumption of about 50 m3 a day.
The...
Hi all,
Thanks for the answers.
I observed the pump during a cycle of filling, and the suction pressure without the pump running is 0.5 bar, and when it starts 0.1 bar. This goes up to 0.15 bar close to the end of the running.
The discharge pressure of the pump is ofcourse 0 without the pump...
Good morning,
As a student Marine Engineer and Electro Technical Officer I have to complete a thesis. This is a report focused on answering a research question. The engineering team onboard has suggested that I research the feasibility of installing frequency drives on the hydrophore skid...
