In a flow-mass curve study the demand line drawn from a ridge in the c...
Explanation:
Flow-mass curve is a graphical representation of water inflow and outflow from a reservoir over a period of time. The curve is used to analyze the water storage and supply capacity of a reservoir. The demand line on the curve represents the amount of water required by the consumers, and the ridge on the curve represents the maximum available storage capacity of the reservoir.
When the demand line drawn from a ridge in the curve does not intersect with the mass curve again, it means that the reservoir is not able to refill to its maximum capacity. This indicates that the inflow of water into the reservoir is not sufficient to meet the demand for water by the consumers. The following are the reasons why the demand cannot be met by the inflow as the reservoir will not refill:
Insufficient inflow: The inflow of water into the reservoir may be insufficient due to low rainfall or drought conditions in the catchment area. This will cause the reservoir to have less water than required.
Leakage: The reservoir may have leaks or seepage that cause water loss. This will reduce the total amount of water available for supply.
Increased demand: The demand for water may have increased beyond the capacity of the reservoir to supply. This may be due to population growth or increased usage of water for irrigation or industrial purposes.
Conclusion:
In conclusion, the flow-mass curve study is an important tool for analyzing the water storage and supply capacity of a reservoir. When the demand line drawn from a ridge in the curve does not intersect with the mass curve again, it indicates that the demand cannot be met by the inflow as the reservoir will not refill. This may be due to insufficient inflow, leakage, or increased demand.