Home > Water Mode > Tools > Catalogues > Demand Patterns
View or edit demand patterns.
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WATERDEMANDPATTERNS |
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The demand for water in a water supply system varies with time. The usual terms are hourly and seasonal fluctuation in demand or in consumption. The daily water demand distribution is modelled on hourly coefficients; that is the water use in any particular hour of the day which is given as a ratio of the daily average.
The demands can be multiplied by the seasonal peak factor, if appropriate. This increases all the demand values by the seasonal peak factor. Typically hotels would experience variation in water demand during the holiday season. In rural areas the seasonal increase in water usage would correspond with the dry period.
The coefficients of hourly variations of water use form a separate file, which is a constituent part of the program and not connected to any particular water supply system. The standard file, which forms part of the Water module, contains several different daily water use distributions that are in our experience most often used.
Procedure
The Demand Pattern Editor displays. Each demand pattern has a Demand Pattern Id number, which is assigned to the node where the demand pattern applies. The arrow keys are used to move between the different demand patterns.
To add a new demand pattern to the library:
Click Add to clear all input areas.
Type a name in the Description field.
Type in the required Seasonal Peak factor.
Type in the coefficient required in table for the 24 hour period. You can press [Tab] to move between input windows.
Click OK.