Convert acre-foot/year [ac*ft/y] to hundred-cubic foot/minute Online | Free flow Converter

t/Year [ac·ft/y]


Acre-foot per year [ac·ft/y] is a unit of volumetric flow rate commonly used in hydrology, water resource management, and irrigation planning. One acre-foot represents the volume of water required to cover one acre of land to a depth of one foot, which is approximately 1,233 cubic meters or 325,851 gallons. When expressed per year, ac·ft/y quantifies the total water volume delivered, used, or available over a 12-month period. This unit is particularly useful for managing large-scale water supplies, such as reservoirs, rivers, or agricultural irrigation systems, providing a standardized measure to estimate annual water availability and consumption. For example, an irrigation system supplying 500 ac·ft/y delivers enough water to cover 500 acres to a depth of one foot over a year. It is also used to plan municipal water supply, allocate water rights, and forecast long-term resource needs. Compared to daily or monthly flow units, acre-foot per year gives a macro-level perspective, suitable for long-term planning, resource management, and sustainability assessments. Using ac·ft/y enables engineers, hydrologists, and policymakers to monitor, manage, and optimize water resources, ensuring efficient allocation and conservation for agricultural, municipal, and industrial use.


Hundred-Cubic Foot/Minute [hcf/min]


Hundred-cubic foot per minute [hcf/min] is a unit of volumetric flow rate commonly used in municipal water supply, industrial fluid systems, and irrigation networks. One hundred cubic feet (hcf) equals 100 cubic feet of water, approximately 2,832 liters or 748 gallons. When expressed per minute, hcf/min measures the volume of water or fluid flowing through a system every sixty seconds. This unit is particularly useful for monitoring high-flow systems in real time, such as large pumping stations, industrial cooling systems, or water distribution networks during peak demand. For example, a pipeline delivering 5 hcf/min transports 500 cubic feet of water every minute, allowing engineers and operators to manage flow rates accurately and prevent bottlenecks. It is also used in industrial processes requiring precise, rapid fluid delivery, such as chemical manufacturing or thermal management. Compared to hcf/h or hcf/d, hundred-cubic foot per minute provides fine temporal resolution, enabling immediate adjustments and enhanced control of large-volume flows. Using hcf/min allows water engineers, industrial operators, and facility managers to monitor, regulate, and optimize fluid flow, ensuring efficiency, safety, and reliability in both municipal and industrial applications.



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