Thanks for the info.
The cathodic protection is to be designed for a period between dry docking of 6 years.
This typically has been 3 - 5 years in the past
There will be a paint scheme in place and the Cathodic system is additional probably to take into account paint lost in service.
The method...
I am calculating the number of zinc anodes required for a sea chest on a vessel. The problem I am having is the current density value.
Looking through old literature states that a value of 10 - 15 mA/m^2 is acceptable for current density for new build ships.
However, I was told to use 30 - 50...
The power is indeed in kW but I converted to HP as asked.
I am based in the UK so applying european standards.
I understand why replies have given various sizes but I need to know the method of selection, formulae and factors to be considered, a sort of step by step procedure.
This is only one...
The required duty cycle(this is the requirement at the pump)is as follows:
2.9HP for 32% of the cycle time
9.1HP for 18%
2.5HP for 32%
8.7HP for 18%
The speed is around 1500rpm
The voltage is typically 400V
I am trying to calculate the motor size for a variable duty cycle. I have four different sections within the cycle, each with their own required power. I want to use a squirrel cage induction motor and hence overload it during the short peak cycles. I was wondering, after taking the RMS power...
