532 results about "Electrical efficiency" patented technology

A fuel cell hybrid power generation system for use in a gas distribution system in which a higher pressure gas is transported / distributed and reduced to a lower pressure gas for a gas distribution or transmission line and a pre-heater is used to heat the higher pressure gas before it is reduced in pressure. The power generation system includes: (i) a fuel cell power plant that generates electricity while producing heat that is used to preheat high pressure gas; (ii) an energy recovery generator that uses the pre-heated higher pressure gas to generate electricity while reducing the gas pressure to a lower gas pressure; and (iii) an electrical assembly combining the electrical outputs of the energy recovery generator and the fuel cell power plant. The fuel cell power plant makes the waste heat available to the gas pre-heater without using a combustion unit thereby increasing the system's electrical efficiency.

An induction motor system comprising an induction motor, equipped with a heat recovery and water pumping apparatus and an apparatus for controlling the electrical efficiency and resulting heat generation of the induction motor. The motor is adapted to be coupled to an AC source for supplying an AC signal. The controlling apparatus includes a switching device, user controls and optional inputs. The switching device is connected in series with the motor and is operative in either a high impedance state wherein significant current flow through the motor is prevented or a low impedance state wherein current flow through the motor is substantially undisturbed. The user controls provide motor operational input signals. The optional inputs provide setpoint and sensed water temperature input signals. The controller means receives the motor operational setpoint and sensed water temperature input signals from the user controls and optional inputs, and switches the switching device between its low and high impedance states in a predetermined sequence for inducing a phase delay in the AC signal.

The invention discloses a nano catalytic electrolysis flocculation device, relating to an electrolysis flocculation device. The nano catalytic electrolysis flocculation device has the advantages of extremely low working voltage between two adjacent electrodes, large current density, small energy consumption, high electrical efficiency and no electrode consumption and electrolysis, and integrates solid-liquid separation function and gas-liquid separation function. The bottom of a shell is provided with a water inlet; the shell is internally provided with a scum baffle and a watertight shutter; the scum baffle and one inner side of the shell form a water discharging chamber; a gap is reserved between the bottom of the scum baffle and the bottom of the shell; the scum baffle and the other inner side of the shell form a slag discharging chamber; a gap is reserved between the top of the watertight shutter and the top of the shell; a hydrogen exhaust port is arranged on the top of the shell; an electrolyzer is arranged between the scum baffle and the watertight shutter; the top of the electrolyzer is open and the gap is reserved between the top of the electrolyzer and the top of the shell; electrodes are installed in the electrolyzer; a gas-liquid separation chamber is formed in the shell on the upper part of the electrolyzer; and a drain outlet is arranged at the bottom of the shell and us positioned between the watertight shutter and the adjacent electrolyzer.

Broadband output high power pulsed flash lamps are useful in many applications, and when specifically optimized, can become an excellent source of ultraviolet (UV) light, which is particularly useful for photo-chemically-induced materials processing applications. Multiple factors involved with the production of high-energy light pulses can in certain cases adversely affect the ultraviolet lamp operation, thereby resulting in the development of micro cracks in lamp envelopes and subsequent limitation in lamp lifetime. Similar factors can be responsible for an increased absorption of UV radiation by lamp components and degradation of lamp efficiency. This invention describes new pulsed flash lamp designs that enable a new generation of high power and performance as required by, for example, many large-scale photo-processing applications. This invention uniquely and advantageously mitigates the development of micro-cracks and failure, and produces dramatically improved electrical efficiency, stability of lamp optical characteristics, and service lifetime.

A fuel cell power plant includes a fuel cell having a membrane electrode assembly (MEA), disposed between an anode support plate and a cathode support plate, the anode and / or cathode support plates include a hydrophilic substrate layer having a predetermined pore size. The pressure of the reactant gas streams is greater than the pressure of the coolant stream, such that a greater percentage of the pores within the hydrophilic substrate layer contain reactant gas rather than water. Any water that forms on the cathode side of the MEA will migrate through the cathode support plate and away from the MEA. Controlling the pressure also ensures that the coolant water will continually migrate from the coolant stream toward the anode side of the MEA, thereby preventing the membrane from becoming dry. Proper pore size and a pressure differential between coolant and reactants improves the electrical efficiency of the fuel cell.