Abstract
Experimental measurements of actual hot water consumption in residential building have been performed. It was established that distribution of hot water for domestic needs has random character and constitutes non-stationary process. It was proposed for hot water supply systems calculation to employ “rated mode of water consumption”. Rated mode is a simplified mathematical description of entire ordered collection of hourly consumptions anticipated during rated period of hot water supply system operation. Most precise description of water consumption rated mode may be obtained with coefficient of general hourly discontinuity at 98% coverage. Selection of hot water metering devices for residential house requires that operating flow rate of water meter should correspond by maximum to residential building water consumption parameters. Methods of calculation of daily water volumes passing through water meter at flow rates lower than transient flow rate value for the specified device were proposed.
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