摘要:
A cross-flow heat exchanger, method of making a cross-flow heat exchanger, and a dehumidifier are provided. The cross-flow heat exchanger has an axial flow path extending through the heat exchanger from an inlet to an outlet and a transverse flow path oriented transversely to the axial flow path and extending through the heat exchanger from an inlet to an outlet. The transverse flow path is adjacent to and separate from the axial flow path. The surface area of the inlet of the axial flow path is less than the surface area of the outlet of the axial flow path. In a preferred embodiment, the heat exchanger has an exterior shape that is trapezoidal.
摘要:
In certain embodiments, a packaged terminal device for killing pests in an affected area includes a housing configured to be positioned at least partially within an affected area, a fan positioned within the housing, and one or more heating elements positioned within the housing. The fan is operable to draw a flow of air from the affected area into the housing. The one or more heating elements are operable to generate heated air by transferring heat to the flow of air. The packaged terminal device further includes a control unit operable to control the operation of the one or more heating elements in order to cause the packaged terminal device to operate in either a first mode or a second mode. In the first mode, the operation of the one or more heating elements is controlled such that sufficient heated air is generated to heat at least a portion of the affected area to a temperature less than or equal to a first predefined temperature. In the second mode, the operation of the one or more heating elements is controlled such that sufficient heated air is generated to heat at least a portion of the affected area to a temperature greater than or equal to a second predefined temperature, the second predefined temperature being greater than the first predefined temperature.
摘要:
A system comprises a memory operable to store light intensity information for a plurality of neighboring pixels of an image that includes a dairy livestock. The system further comprises a processor communicatively coupled to the memory. The processor determine that a difference between the light intensity information for a first pixel of the plurality of neighboring pixels and at least some of the other neighboring pixels exceeds a threshold. The processor further discards the first pixel and determines a location of a teat of the dairy livestock based on the image, excluding the discarded pixel.
摘要:
In an exemplary embodiment, a system includes a three-dimensional camera and a processor communicatively coupled to the three-dimensional camera. The processor is operable to determine a first edge of a dairy livestock, determine a second edge of the dairy livestock, determine a third edge of the dairy livestock, and determine a fourth edge of the dairy livestock.
摘要:
A method, comprises receiving a flow of milk at an inlet of a manifold. The inlet comprises a first end coupled to a hose that receives a flow of milk from a teat cup and a second end terminating in a chamber of the manifold. The manifold comprises one or more other inlets and a plurality of outlets. The plurality of outlets includes one or more milk collector outlets and one or more drain outlets. The method proceeds by causing the flow of milk to be directed to a corresponding milk collector outlet by causing a shut-off valve corresponding to the inlet to open, and by causing a drain valve corresponding to the inlet to close. The method concludes by causing the flow of milk to be directed to a corresponding drain outlet by causing the shut-off valve corresponding to the inlet to close, and by causing the drain valve corresponding to the inlet to open.
摘要:
A system for applying disinfectant to the teats of a dairy livestock includes a carriage mounted on a track, the carriage operable to translate laterally along the track. The system further includes a robotic arm including a first member pivotally attached to the carriage, a second member pivotally attached to the first member, and a spray tool member pivotally attached to the second member. The robotic arm further includes a spray tool attached to the spray tool member. The system further includes a controller operable to cause at least a portion of the robotic arm to extend between the hind legs of a dairy livestock such that the spray tool may discharge a disinfectant to the teats of the dairy livestock.
摘要:
A defrost bypass dehumidifier includes an air flow path with first, second and third segments in series from upstream to downstream and passing ambient air respectively to an evaporator coil then to a condenser coil and then discharging same. The air flow path has a bypass segment passing ambient air to the evaporator coil in parallel with the noted first air flow path segment.
摘要:
In certain embodiments, a system for killing pests in an affected area includes a heat exchanger unit and an electric heater. The heat exchanger unit is placed within the affected area and is coupled to a faucet. The heat exchanger unit is configured to receive a flow of water from the faucet and to emit heated air by transferring heat from the flow of water to air flowing through the heat exchanger unit. The electric heater further heats the air emitted by the heat exchanger unit to a target temperature greater than 120 degrees Fahrenheit.