Patent ID: 7013248

Claim:
A computer readable medium for estimating parameters for a variable speed pump for a hydraulic network solver application which uses nodes and links to describe a hydraulic network, comprising program instructions for performing the steps of: a. determining a desired operating characteristic for a selected node in the hydraulic network; b. establishing a matrix describing the network; c. incorporating the predetermined desired operating characteristic as a known value in the matrix; d. replacing the known operating characteristic with a delta term as one of the unknown variables, the delta term being related to the operation of a variable speed pump; e. separating the symmetric terms of the matrix from the non-symmetric terms of the matrix; f. solving the symmetric terms of the matrix; g. building a new matrix involving the non-symmetric terms including the delta term; h. solving the non-symmetric terms of the matrix; i. combining the symmetric and the non-symmetric scalar solutions as linear equations; and j. calculating desired parameters by substituting the solution into the equation for the pump and solving for the equation's root, whereby parameters are estimated for a variable speed pump.