A free-standing Energy Recovery System enables sanitary recovery of thermal energy with heat transfer from hot waste effluent to incoming domestic water. The source of the effluent may, for example, be conventional commercial ware-washing, clothes washing equipment, pasteurization and other industrial processes.

Power management system including a mechanical power source generating torque, a variable mechanical power load, a generator/motor and a power controller. The variable mechanical power load is mechanically coupled with the mechanical power source and with the generator/motor such that torque is transferred therebetween. The coupled with the mechanical power source and with the generator/motor. The generator/motor is operative to operate as a mechanical power generator converting electrical power into mechanical power, and as an electric power generator converting mechanical power into electrical power. The power controller directs the generator/motor to operate as one of a mechanical power generator and an electrical power generator, to maintain a power balance between the mechanical power source, the variable mechanical power load and the generator/motor and such that the angular velocity of each of the mechanical power source, the variable mechanical power load and the generator/motor is maintained at their respective operational velocities.

Power management system including a mechanical power source generating torque, a variable mechanical power load, a generator/motor and a power controller. The variable mechanical power load is mechanically coupled with the mechanical power source and with the generator/motor such that torque is transferred therebetween. The coupled with the mechanical power source and with the generator/motor. The generator/motor is operative to operate as a mechanical power generator converting electrical power into mechanical power, and as an electric power generator converting mechanical power into electrical power. The power controller directs the generator/motor to operate as one of a mechanical power generator and an electrical power generator, to maintain a power balance between the mechanical power source, the variable mechanical power load and the generator/motor and such that the angular velocity of each of the mechanical power source, the variable mechanical power load and the generator/motor is maintained at their respective operational velocities.

There is provided a high efficiency ocean thermal difference power generating system by using liquid-vapor ejector and motive pump comprising: an evaporator for changing transferred refrigerant liquid into refrigerant vapor with high temperature and high pressure by the thermal exchange with surface seawater; a vapor-liquid divider which is installed at the outlet part of the evaporator and divides the refrigerants to liquid-state refrigerant and vapor-state refrigerant respectively; a distributor which is installed at the inlet of the evaporator and distributes the refrigerants flowed into the evaporator to multi-paths; a turbine for generating electric power by using the high pressure refrigerant vapor transferred from the liquid-vapor divider or the evaporator; a motive pump for increasing the pressure of the refrigerant liquid distributed from the distributor or the liquid-vapor divider; a liquid-vapor ejector for mixing the low pressure refrigerant vapor which passed the turbine and the high pressure refrigerant liquid which passed a motive pump, thereby proceeding expansion and compression; a condenser for condensing the refrigerants which was mixed in the liquid-vapor ejector by the thermal exchange with deep seawater; and a refrigerant circulation pump for increasing the pressure of the refrigerants which was condensed in the condenser up to the evaporation pressure and for circulating.

There is provided a high efficiency ocean thermal difference power generating system by using liquid-vapor ejector and motive pump comprising: an evaporator for changing transferred refrigerant liquid into refrigerant vapor with high temperature and high pressure by the thermal exchange with surface seawater; a vapor-liquid divider which is installed at the outlet part of the evaporator and divides the refrigerants to liquid-state refrigerant and vapor-state refrigerant respectively; a distributor which is installed at the inlet of the evaporator and distributes the refrigerants flowed into the evaporator to multi-paths; a turbine for generating electric power by using the high pressure refrigerant vapor transferred from the liquid-vapor divider or the evaporator; a motive pump for increasing the pressure of the refrigerant liquid distributed from the distributor or the liquid-vapor divider; a liquid-vapor ejector for mixing the low pressure refrigerant vapor which passed the turbine and the high pressure refrigerant liquid which passed a motive pump, thereby proceeding expansion and compression; a condenser for condensing the refrigerants which was mixed in the liquid-vapor ejector by the thermal exchange with deep seawater; and a refrigerant circulation pump for increasing the pressure of the refrigerants which was condensed in the condenser up to the evaporation pressure and for circulating.

Provided is a thermal energy storage plant including a charging circuit where a first working fluid is circulated, the charging circuit includes a first fluid transporting machine for generating a flow of the first working fluid in charging circuit, a heating device electrically powered for transferring heat to the first working fluid, a heat accumulator for storing the thermal energy of the first working fluid, the heat accumulator including a hot end for receiving the first working fluid at a first temperature and a cold end for letting the first working fluid exit the heat accumulator at a second temperature lower than the first temperature, the heat accumulator includes a plurality of heat storage units connected in series between the hot end and the cold end, which may be separated by valves.

Device embodiments use a person's exhaled breath to distribute an evaporated, sublimated, or vaporized material. The disclosure provides non-powered devices that use evaporation or sublimation to create the vapor that is distributed and the disclosure provides devices with electric vaporizers which rapidly vaporize liquid scent materials for distribution. The scent can be designed as a masking or cover scent, an aromatic lure scent, a scent elimination material, a pleasant scent for freshening air in a room or automobile, or a repellant scent. The device can be worn as a mask. The device can be handheld or disposed at an area remote from the user's mouth with the breath blown in through a tube.

Device embodiments use a person's exhaled breath to distribute an evaporated, sublimated, or vaporized material. The disclosure provides non-powered devices that use evaporation or sublimation to create the vapor that is distributed and the disclosure provides devices with electric vaporizers which rapidly vaporize liquid scent materials for distribution. The scent can be designed as a masking or cover scent, an aromatic lure scent, a scent elimination material, a pleasant scent for freshening air in a room or automobile, or a repellant scent. The device can be worn as a mask. The device can be handheld or disposed at an area remote from the user's mouth with the breath blown in through a tube.

The invention relates to a lignite fired steam power plant comprising a water/steam power cycle, a dryer system for drying lignite coal and a heat recovery system for recovering thermal energy from the dryer system. The heat recovery system vaporises condensate against a vapour line of the dryer steam and then compresses the vaporised condensate for use to preheat either or both combustion air or condensate of the water/steam power cycle.

The invention relates to a lignite fired steam power plant comprising a water/steam power cycle, a dryer system for drying lignite coal and a heat recovery system for recovering thermal energy from the dryer system. The heat recovery system vaporises condensate against a vapour line of the dryer steam and then compresses the vaporised condensate for use to preheat either or both combustion air or condensate of the water/steam power cycle.