Water flow regards the quantity of this fluid medium per a unit of time. In SI units it would be liters per second (lps), and in American it is commonly measured in gallons per minute (gpm).
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To calculate water flow rate, you need to know the cross-sectional area of the pipe or channel through which the water is flowing, as well as the velocity of the water. The formula for calculating water flow rate is Q = A * V, where Q is the flow rate, A is the cross-sectional area, and V is the velocity of the water. Multiplying the area by the velocity will give you the flow rate.
The mass of water used in the first six minutes depends on the rate of flow of water. If we know the flow rate, we can calculate the mass using the formula: Mass = flow rate x time.
A weir gauge is typically used to measure the flow rate of water in open channels such as rivers or streams. It works by allowing water to flow over a weir structure, and the height of the water level above the weir can be used to calculate the flow rate using established equations.
That depends on what information is provided. If you don't have any information, you may actually need to measure the speed of the water; or you may want to measure the flow (for example, in liters per second), and the pipe diameter, and then calculate the speed from that.
To calculate the chilled water coil capacity using the airside performance, you would divide the airside thermal capacity by the ADP (Approach Design Point) temperature difference. This will give you the required chilled water flow rate to meet the cooling load of the airside system.
This is the ratio volume/time.