A controller for a well system automatically profiles the system, detects a pre-charge of an associated pressurized storage tank, and automatically configures pressure-based control of a pump based on the detected pre-charge. The controller determines the pre-charge of the pressurized storage tank while the tank is connected to the system. While monitoring a system pressure, the controller activates the pump to initiate a filling operation of the pressurized storage tank. The controller analyzes a change in system pressure during the filling operation to determine the pre-charge of the pressurized storage tank. With the pre-charge determined, the controller automatically configures pressure settings for pressure-based control of the pump.

There are described methods and systems for supplying water to an aircraft. A water supply assembly is fluidly coupled to a water storage tank via a supply line. An overflow line is fluidly coupled to the water supply assembly. One or more sensors are configured to determine an amount of water in the water storage tank. One or more processors are communicative with the one or more sensors and configured to: determine a desired amount of water to be contained in the water storage tank; determine from the one or more sensors that an amount of water in the water storage tank corresponds to the desired amount of water; and, in response to determining that the amount of water in the water storage tank corresponds to the desired amount of water, transmit an instruction for causing water being supplied from the water supply assembly to the water storage tank to be diverted to the overflow line.

A pipeline pressure test that accounts for measurement uncertainties includes a method for performing a pressure test of a pipe section of a pipeline including receiving a desired pressure to be applied to the pipe section and a duration of time the desired pressure is to be applied to the pipe section, receiving a pressure measurement of a fluid, a temperature measurement of the fluid, a volume measurement of the fluid, and a pipe section strain measurement, determining a change in fluid pressure and a volume change, determining a pressure change uncertainty and a volume change uncertainty, checking that the pressure change uncertainty is within a pressure uncertainty threshold and that the volume change uncertainty is within a volume uncertainty threshold, determining whether the desired pressure has been applied to the inner surface of the pipe section for the duration of time; and outputting a result of the testing.

A mobile handwashing system (1) includes a freestanding supply station (2) and at least one freestanding handwashing station (3). The supply station (2) includes a freshwater tank (4), which is fluidly connected or connectable to the at least one handwashing station (3) via a first freshwater supply line (5) and is fluidly connected or connectable to a freshwater supply system via a second freshwater supply line (6). The supply station (2) includes a wastewater or graywater tank (7) and/or a wastewater pump (23) which is fluidly connected or connectable to the at least one handwashing station (3) via a first wastewater line (8) and is fluidly connected or connectable to a wastewater disposal or wastewater treatment system via a second wastewater line (9).

A control system (15) controls a water supply from at least two separate input lines (3i-k) into a sector (1) of a water supply network. The control system (15) is configured to receive input flow information indicative of the water input flow (q.sub.i-k) through each of the input lines (3i-k). The control system (15) is configured to receive input pressure information indicative of the input pressure (p.sub.i) in at least one (3i) of the input lines (3i-k). The control system (15) is configured to receive pressure information indicative of at least one pressure value (p.sub.cri,m,n) determined by a pressure sensor (7m,n) within the sector (1). The control system (15) is configured to control the input pressure (p.sub.i) by controlling at least a pressure regulating system (13i) at an input line (3i) based on the input flow information from all input lines (3i-k) and based on the sector pressure information.

A control system (15) controls a water supply from at least two separate input lines (3i-k) into a sector (1) of a water supply network. The control system (15) is configured to receive input flow information indicative of the water input flow (q.sub.i-k) through each of the input lines (3i-k). The control system (15) is configured to receive input pressure information indicative of the input pressure (p.sub.i) in at least one (3i) of the input lines (3i-k). The control system (15) is configured to receive pressure information indicative of at least one pressure value (p.sub.cri,m,n) determined by a pressure sensor (7m,n) within the sector (1). The control system (15) is configured to control the input pressure (p.sub.i) by controlling at least a pressure regulating system (13i) at an input line (3i) based on the input flow information from all input lines (3i-k) and based on the sector pressure information.

A pipeline pressure test that accounts for measurement uncertainties includes a method for performing a pressure test of a pipe section of a pipeline including receiving a desired pressure to be applied to the pipe section and a duration of time the desired pressure is to be applied to the pipe section, receiving a pressure measurement of a fluid, a temperature measurement of the fluid, a volume measurement of the fluid, and a pipe section strain measurement, determining a change in fluid pressure and a volume change, determining a pressure change uncertainty and a volume change uncertainty, checking that the pressure change uncertainty is within a pressure uncertainty threshold and that the volume change uncertainty is within a volume uncertainty threshold, determining whether the desired pressure has been applied to the inner surface of the pipe section for the duration of time; and outputting a result of the testing.

An ultra-large horizontal seepage test system with intelligent graded loading and variable seepage path is provided, which includes a water storage system, a water pressure system, a horizontal seepage test system and an intelligent loading and control system. The water storage system, the water pressure system and the horizontal seepage test system are connected in sequence, and the water pressure system is used to apply a water pressure and a vertical pressure to a test piece to be tested in the horizontal seepage test system. An outlet valve of the horizontal seepage test system is connected to the water storage system, and the intelligent loading and control system is used to control operations of electrical components of the water pressure system and the horizontal seepage test system. With the test system, a water head pressure can be loaded intelligently, and an infiltration angle of water inflow can be adjusted.

An ultra-large horizontal seepage test system with intelligent graded loading and variable seepage path is provided, which includes a water storage system, a water pressure system, a horizontal seepage test system and an intelligent loading and control system. The water storage system, the water pressure system and the horizontal seepage test system are connected in sequence, and the water pressure system is used to apply a water pressure and a vertical pressure to a test piece to be tested in the horizontal seepage test system. An outlet valve of the horizontal seepage test system is connected to the water storage system, and the intelligent loading and control system is used to control operations of electrical components of the water pressure system and the horizontal seepage test system. With the test system, a water head pressure can be loaded intelligently, and an infiltration angle of water inflow can be adjusted.

The present invention provides a leveling differential-pressure diversion peak-shaving water tank with a function of preventing stagnant water and stale water, which comprises a water storage and distribution tank, a water inlet pipeline, a water outlet pipeline and a front tank. The water inlet pipeline is arranged at the upper portion of the water storage and distribution tank and used for feeding water into the water storage and distribution tank. The water outlet pipeline is arranged at the lower portion of the water storage and distribution tank and comprises a main water outlet pipe and a plurality of water outlet branch pipes. One end of each water outlet branch pipe is connected with the main water outlet pipe. The front tank comprises a front tank water box, a front tank water inlet pipeline and a front tank water outlet pipeline. The present invention further provides a water supply pumping station.