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Calculation of internal water supply networks

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The calculation was carried out by Building Norms and Rules 2.04.01-85. Estimated seconds expenses of water is defined by (2) and (3) Building Norms and Rules at:

; (addition 3, Building Norms and Rules).

The probability of simultaneous actions of sanitary devices in the building:


Product (addition 4).

Cost of cold water at the input ;
Hour water expenses:

where = (addition 3, Building Norms and Rules);


Average daily expenses of cold water in the building:

Where (addition 3, Building Norms and Rules).

Hydraulic calculation of internal water supply network we bring in table form (table 3.3). By consumptions of water on each site of calculation direction (fig.3.70) on the tables for hydraulic calculation we take diameter of pipes, speed of movement of water in pipes and specific expenses of pressure on friction [18]. At this the speed of movement of water in pipes-0,9-1,2 m/sec is recommended, the maximal speed-3 m/sec. Results of calculations calculated shown in Table 3.8.


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