Is there a term for percent error type calculations when using the full scale value as the denominator instead of the actual value? Using percent error results in very high values when the actual quantities are small.
For example on a line rated at 500 MW with an error of 10 MW, what would I call the calculation that results in 2% for both of these cases:
assuming a calculated flow of 10 MW and an actual flow of 20 MW
% error = 50% =abs(10 MW-20 MW)/20 MW
% ????? = 2% =abs(10 MW-20 MW)/500 MW
assuming a calculated flow of 490 MW and an actual flow of 500 MW
% error = 2% =abs(10 MW-20 MW)/20 MW
% ????? = 2% =abs(490 MW-500 MW)/500 MW
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Teach pendants are a critical part of the factory environment as they act as the human/machine interface for industrial robots. But since teach pendants are handheld, they are under a greater risk of damage due to falls. Download Now
Product development in most companies requires a sequential iterative process to come up with the right product. It can be time-consuming and time is a resource that is in the shortest supply. Download Now
Buildings are the human response to inclement weather. Be it the shining sun, heat, cold, wind gusts, rain, snow, dust or any other harmful elements of nature, our shelters allow us to rest, work or carry out almost any activity in comfort and safety. Download Now