Abstract:
PROBLEM TO BE SOLVED: To suppress rapid fluctuations in output by limiting a facility capacity of a power storage device, controlling a state of charge (power storage) (SOC) of the power storage device most suitably, and securing the power storage capacity of the power storage device in both charge and discharge directions in a distribution power supply device formed by combining a renewable energy generation apparatus and the power storage device.SOLUTION: The present power storage rate Cr(%) of a power storage device, and the present power generation output rate Wpr(%)of a renewable energy generation apparatus are detected, the power storage rate Cr(%) and the power generation output rate Wpr(%) of the renewable energy generation apparatus are compared with each other, and interconnection output to a power system of a distribution power supply device is controlled so that the power storage rate Cr(%) and the power generation output rate Wpr(%) of the renewable energy generation apparatus become equal to each other.
Abstract:
PROBLEM TO BE SOLVED: To provide a pinging axial direction scan type thickness reduction inspection device of a heat insulator piping using radioactive isotope which is an authentication apparatus with display for specifying and detecting a thickness reduced portion of a piping.SOLUTION: A thickness reduction inspection device of a heat insulator piping 50 is configured to include: a radiation source 13; two or more radiation detectors 14a,14b arranged separately from each other in a direction to cross the heat insulator piping 50 and outputting signals according to a dose of radiation upon receipt of the radiation at the same time; a frame 12 for holding the radiation source 13 and each of the radiation detectors 14a, 14c oppositely to one another by sandwiching the heat insulator piping 50 so that the radiation emitted from the radiation source 13 is caused to enter each of the radiation detectors 14a, 14b through the inside of the heat insulating piping 50 and the radiation source 13 and each of the radiation detectors 14a, 14b are caused to move along a central axial line O of the heat insulator piping 50, and a thickness measurement part 30 for measuring the reduced thickness of the piping from a radiation amount obtained by each of the radiation detectors 14a, 14b.
Abstract:
PROBLEM TO BE SOLVED: To provide a reduced-thickness inspection device of piping with thermal insulation materials using a radioactive isotope as authentication equipment with display capable of finely specifying and detecting the reduced-thickness place of piping and a reduced-thickness inspection method.SOLUTION: The reduced-thickness inspection device of piping 50 with thermal insulation materials constituted of an outer casing 53, a thermal insulation material 52 and a pipe material 51 in this order from the outside includes: a first frame 15 having a plurality of rotary rollers 20 and 21 oppositely arranged with the piping 50 with thermal insulation materials sandwiched therebetween, which is mounted on the piping 50 with thermal insulation materials so as to be rotatable in a circumferential direction by allowing the rollers 20 and 21 to abut to the outer peripheral surface of the outer casing 53; a second frame 16 mounted on the first frame 15 so as to slide in a direction orthogonal to the axial center line of the piping 50 with thermal insulation materials, the second frame 16 being constituted such that a radiation source 13 and a radiation detector 14 are oppositely arranged with the piping 50 with thermal insulation materials sandwiched therebetween; and a thickness measurement section 30 for measuring the reduced-thickness of the piping 51 from transmitted radiation amounts to be emitted from the radiation source 13, and to be obtained by the radiation detector 14.
Abstract:
PROBLEM TO BE SOLVED: To provide a structurally simple snow melting system capable of efficiently melting snow by utilizing groundwater, and a snow melting method. SOLUTION: A dumping tank 5 is a tank for dumping the snow from the ground. An upper portion of the dumping tank 5 can be opened, and a lower portion thereof is provided with a chute with an inclined plane. A snow crushing portion 7, which communicates with the chute of the dumping tank 5, is a portion for finely cutting the snow. A snow flowing portion 9 communicates with the snow crushing portion 7; and the snow and water, which flow out from the snow crushing portion 7, flow into the snow flowing portion 9. The water is stored to a predetermined water level in the snow flowing portion 9; and the snow floats above it. A thermal storage tank 11 is annexed to the snow flowing portion 9. The water can be stored to a predetermined water level in the thermal storage tank 11. The thermal storage tank 11 and the snow flowing portion 9 communicate with each other inside. The water in the thermal storage tank 11 is fed into the snow flowing portion 9. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an air conditioning system for a communication and information processing equipment room or the like, contributing to energy saving by improving air conditioning efficiency of the electronic equipment room to reduce a thermal load of electronic equipment and eliminating consumption of wasteful electronic energy, and capable of providing a small and inexpensive electronic equipment room.SOLUTION: The air conditioning system is for air-conditioning an equipment room 11, installed with a plurality of rack rows L1-L4 are formed by arranging racks 13 mounted with communication and processing equipment 12 in a vertical direction, includes: a ceiling installation type multi-air conditioner 16 in which a plurality of high sensible heat type indoor units 16a are installed in a ceiling part 11c of the equipment room, for blowing out cold air toward a suction face of the rack, making the cold air circulate within the rack, flowing from an upstream side toward a downstream side, sucking in used air discharged from the downstream side after finishing cooling of the communication and information processing equipment, and carrying out a cooling process to produce cold air to be blown out again toward the suction face of the rack; and a controller 23 for controlling the drive of the air conditioner.
Abstract:
PROBLEM TO BE SOLVED: To provide a sprinkler which is simply structured, has a small number of components, and is capable of efficiently and equally sprinkling water in a rectangular sprinkling range.SOLUTION: In the sprinkler 1 including a rotational driving mechanism 5 for rotationally driving a jet pipe 3 for jetting water by a prescribed angle each in a circumferential direction by the jetting pressure of water, the sprinkler is provided with a pattern coupler 2 configured by inserting an outer cylinder 22 and an inner cylinder 23 provided with water passing ports 22a and 23a communicable with each other, and the inner cylinder is connected with the jet pipe and rotatably configured. The pattern of the water passing ports is formed so as to control a jet water amount by changing the overlapping of the water passing ports provided on the inner and the outer cylinders by rotating the inner cylinder and changing the effective water passing area of the water passing ports corresponding to the sprinkling angle of the jet pipe.