Abstract:
A method for estimating an efficiency of a power device includes identifying a state of operation of the power device, measuring power-related information produced by the power device, and determining an estimated efficiency of the power device based in part on the state of operation of the power device and power loss parameters associated with the power device by using the measured power-related information. Other methods and devices for measuring efficiency are further disclosed.
Abstract:
A system and method for altering a user interface of a power device is provided. The user interface includes an interface structure. The method includes acts of receiving user preference information, determining additional configuration information of the power device, adapting the interface structure based at least in part on the user preference information and the additional configuration information and providing at least a portion of the adapted interface structure to a user via the user interface.
Abstract:
A method for estimating an efficiency of a power device includes identifying a state of operation of the power device, measuring power-related information produced by the power device, and determining an estimated efficiency of the power device based in part on the state of operation of the power device and power loss parameters associated with the power device by using the measured power-related information. Other methods and devices for measuring efficiency are further disclosed.
Abstract:
A system and method for directing a user to configure a power device via an alphanumeric user interface is provided. The power device may include data storage storing a plurality of operational parameters. The method includes acts of prompting, during an initial power-up of the power device, a user to enter an indication of quality of power supplied to the power device, receiving the indication via the user interface, determining a first value for each of the plurality of operational parameters of the power device based at least in part on the indication and applying each first value of the plurality of operational parameters to the power device.
Abstract:
A power device (10) includes a housing (12), a power input interface provided on the housing, and a rotating outlet unit (30) coupled to the housing. The rotating outlet unit has a plurality of power outlets (38) to distribute power from the power input interface. The rotating outlet unit is configured to rotate between a first position in which the power outlets are disposed on one side of the housing and a second position in which the power outlets are disposed on another side of the housing. A method for providing power to electrical components is further disclosed.
Abstract:
Systems, devices and methods for the compression, expansion, and/or storage of a gas, such as air natural gas are described herein. In some embodiments, an apparatus suitable for use in a compressed gas-based energy storage and recovery system includes a pneumatic cylinder having a working piston disposed therein for reciprocating movement in the pneumatic cylinder, a hydraulic actuator coupled to the working piston, and a hydraulic controller fluidically coupleable to the hydraulic actuator. The apparatus is fluidically coupleable to a compressed gas storage chamber which includes a first storage chamber fluidically coupleable to the pneumatic chamber, and a second storage chamber is fluidically coupleable to the first storage chamber. The first storage chamber is disposed at a first elevation and is configured to contain a liquid and a gas. The second storage chamber is disposed at a second elevation greater than the first elevation, and is configured to contain a volume of liquid.