METHOD FOR CONTROLLING FRESH WATER GENERATION APPARATUS BY ESTIMATING FILTRATION PROPERTY, METHOD FOR DETERMINING PRESENCE OF TROUBLE IN FRESH WATER GENERATION APPARATUS, FRESH WATER GENERATION APPARATUS, PROGRAM FOR OPERATING FRESH WATER GENERATION APPARATUS, PROGRAM FOR DETERMINING PRESENCE OF TROUBLE IN FRESH WATER GENERATION APPARATUS, AND RECORDING MEDIUM

摘要

The present invention relates to a method for controlling a fresh water generation apparatus employing N stages of water treatment methods, the method including a stage-(n-1) water treatment method filtration property divergence determination step for determining the presence of divergence between an estimated filtration property and a filtration property in a stage-(n-1) (wherein n represents any natural number of 2 to N) water treatment method, in which, when a divergence is observed in the divergence determination step, the method further includes: a stage-(n-1) water treatment method cycle estimation calculation step for changing the estimated input condition for the stage-(n-1) water treatment method and repeating the estimation calculation until the divergence falls within a specified value range; a stage-(n-1) water treatment method control condition recording step for determining the control condition from the calculation and recording the control condition; a stage-n water treatment method cycle estimation calculation step for changing the estimated input condition for the stage-n water treatment method from the control condition for the stage-(n-1) water treatment method and repeating the estimation calculation until the divergence between the estimated filtration property and the filtration property in the stage-n water treatment method falls within a specified value range; and a stage-n water treatment method control condition recording step for determining the control condition from the calculation and recording the control condition.