Kabushiki Kaisha Toshiba

Nissan Motor Company Limited

Mitsubishi Rayon Company, Limited

Tokyo Shibaura Denki Kabushiki Kaisha

Yasuo Takagi

Dai Murayama

Hiroshi Morimoto

Yutaka Iino

Tomoyuki Kinoshita

Yuuichi Hanada

Nobutaka Nishimura

Kenji Yoneda

Kenji Mitsumoto

Yasuo Nakajima

Masaaki Saito

Tsuneji Kameda

Yoshikazu Ooba

Yoshimasa Hayashi

Kenji Baba

Koichi Ikeda

Kentaro Matsunaga

Kunihiko Sugihara

Kazuya Yamada

Syunichi Aoyama

Shoko Suyama

Akihiro Fujii

Shuhei Noda

Takaaki Enohara

Kazumi Nagata

Michio Onoda

Masaki Nakano

Makoto Honda

Hiroyuki Yamauchi

Hatsuo Nagaishi

Toshikazu Oshidari

Hiroyuki Watanabe

Masaaki Uchida

Hiroshi Iwano

Akihiro Ito

Takashi Kaneko

Masahiko Yamada

Tsutomu Nakada

Seiji Fujiwara

Tomonori Maegawa

Nobuo Okita

Takahiro Yamamori

Kazuto Kubota

Shigeo Muranaka

Takashi Shigemasa

Kazutami Mitani

Hideyoshi Ootani

Koubun Takahashi

Masahiko Murai

Kenzo Yonezawa

Wataro Shinohara

Masato Yoshino

Yoshiyasu Ito

Masaaki Katsumata

Shigeo Kasai

Satoshi Takeyama

Fumio Sanezawa

Junko Ohya

Yukio Hiraoka

Shinji Hayashi

Yuichi Chida

Yuko Kawajiri

Hisao Watanabe

Akihiro Iiyama

Kazuya Goto

Kiharu Numata

Yasuyuki Ito

Shuichi Yamaguchi

Kyosuke Katayama

Takashi Hisatomi

Takashi Kuwahara

Terumasa Hidaka

Shigetsugu Hayashi

Ken Naitoh

Akimasa Nakai

Yasuhiro Fukuhara

Junichi Muramatsu

Masuo Yamasaki

Yasuyuki Miyazaki

Masafumi Komai

Tadayoshi Saitou

Yoichi Uemura

Mikhail Rodionov

Kazuhiro Miyachi

Tadayoshi Saito

Shingo Tamaru

Hideki Oono

Masashi Nakamura

Junichi Furukawa

Kazumasa Katoh

Yoichi Tone

Hisashi Kobayashi

Kazuo Takahata

Koki Wakabayashi

Yoshiki Murakami

Ietsugu Santo

Ken Naito

A hydrogen production system that achieves a highly-efficient hydrogen production operation even when a time-varying electric power source is used is provided. A hydrogen production system includes a capacitor inputting electric power energy from a renewable power supply, and storing electric power, a pulse voltage generation unit generating a pulse voltage having a set amplitude and a set cyclic period by using the electric power stored in the capacitor, and an electrolytic cell applying the generated pulse voltage, and generating hydrogen by high temperature steam electrolysis by using steam supplied into the electrolytic cell.

Hydrogen production system and method for producing hydrogen

An electric/thermal energy storage schedule optimizing device is provided. The electric/thermal energy storage schedule optimizing device includes a predicting unit setting predicted values of a consumed energy or a supplying energy of a plurality of control-target devices. The electric/thermal energy storage schedule optimizing device also includes a start-stop optimizing unit creating start-stop schedules of the plurality of control-target devices based on the predicted values set by the predicting unit.

Electric/thermal energy storage schedule optimizing device, optimizing method and optimizing program

A drive force transmission device is provided with a motor shaft, a transmission input shaft, a drive side sprocket, a resolver rotor and a cylindrical resolver retainer. The motor shaft is configured to be connected to a motor rotor of a motor. The driving force transmission shaft is coaxially connected to the motor shaft. The oil pump sprocket is provided on the driving force transmission shaft for rotating an oil pump. The resolver rotor is disposed on the motor shaft adjacent the oil pump sprocket for detecting a rotational position of the motor. The cylindrical resolver retainer is coaxially disposed on the motor shaft to fix the resolver rotor to the motor shaft. The resolver retainer includes a stopper that forms an axial positioning surface for the resolver rotor by contacting an end portion of the motor shaft, and an axial position limiting surface of the oil pump sprocket.

Drive force transmission device

Electric power obtained by wind power generation is used effectively. A power generation system in an embodiment includes: a wind power generation apparatus; a solar thermal power generation apparatus; and an electrothermal converting unit. The solar thermal power generation apparatus includes: a heater heating a heating medium by solar heat; and a heat exchanger exchanging heat of the heating medium heated by the heater and heat of a working fluid to operate a drive mechanism of a power generator. The electrothermal converting unit converts part of electric power generated by the wind power generation apparatus into heat to heat the heating medium.

Power generation system including wind power generation and solar thermal power generation

An air conditioning control system allows a supply air switching controller to alternately switch outside air control and return air control at a preset switching interval. The supply air switching controller is connected to an air conditioner placed to correspond to each room inside as an air conditioning control subject. The outside air control takes outside air into a temperature/humidity adjustment coil of the air conditioner by opening a first damper provided in the air conditioner in order to adjust an intake volume of the outside air into the air conditioner and by closing a second damper provided in the air conditioner in order to adjust an intake volume of return air from the room inside. The return air control takes the return air from the room inside into the temperature/humidity adjustment coil of the air conditioner by closing the first damper and opening the second damper.

Air conditioning control system for controlling outside air control and return air control of air conditioning system

In accordance with embodiments, a server room managing air conditioning system includes: a first coil; a second coil; and an air supply fan. The first coil adjusts returned air of a server room to a predetermined temperature value lower than a supplied air temperature target value and dehumidifies the returned air. The second coil adjusts the returned air of the server room to a predetermined temperature value higher than the supplied air temperature target value so that the supplied air temperature target value and a supplied air humidity target value can be achieved when the returned air is mixed with air adjusted by the first coil. The air supply fan mixes the returned air and supplies the mixed returned air as the supplied air to the server room.

Server room managing air conditioning system

According to an embodiment, a status estimation apparatus includes detector, calculator, estimator and specifying unit. Detector detects a status change of any of electrical devices based on measurement data of a current flowing in a distribution line supplies power to the devices. Calculator calculates a current waveform change and a power change associated with the status change based on the measurement data. Estimator estimates a candidate originating from the status change based on the current waveform change. Specifying unit specifies a device caused the status change and a type of the status change based on the power change and an estimation result of the candidate.

Status estimation apparatus, status estimation method

An energy demand prediction apparatus according to an embodiment includes an image analysis unit and a prediction unit. The image analysis unit generates analysis data including at least one of human information and environment information of a prediction target area based on image data acquired by an image sensor. The prediction unit generates prediction data by executing an energy demand prediction based on the analysis data and an energy demand prediction model generated using previous data corresponding to the analysis data.

Energy demand prediction apparatus and method

According to the embodiment, the air conditioning system for a server changes air conditioning control target values within a certain range when outside air and return air both have higher specific enthalpy than the target state and hence the mixed air of the outside air and the return air cannot be adjusted to air in the target state.

Air conditioning system and air conditioning control method for server room

A controller and indoor unit introducing outdoor air and/or return air from an air conditioning control target, and discharging introduced air to the air conditioning control target as supply air. The indoor unit includes a first space including an outdoor air introducing unit introducing outdoor air, a cooler, and a second space including a return air introducing unit introducing return air from the air conditioning control target. The controller, after determining air conditioning control on the air conditioning control target is necessary, introduces the outdoor air to the first space through the outdoor air introducing unit, subjecting such to cooling by the cooler and/or dehumidification to result in processed outdoor air, and introduces the return air to the second space through the return air introducing unit, where the processed outdoor air is mixed with the return air and supplied to the air conditioning control target as the supply air.

Air conditioning apparatus and air conditioning control method

In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.

Electrical power storage system using hydrogen and method for storing electrical power using hydrogen

According to one embodiment, a PMV estimating device calculates a PMV value from an average room radiation temperature, room temperature, room humidity, room air velocity, an amount of cloth worn by a person in the room, and an amount of activity of the person in the room. The PMV estimating device includes: indoor solar radiation calculator; solar radiated article temperature estimator; and average radiation temperature estimator. The indoor solar radiation calculator calculates an amount of solar radiation entered into the room. The solar radiated article temperature estimator estimates a temperature of a solar radiated article receiving the solar radiation entered into the room, by using the amount of solar radiation entered into the room calculated by the indoor solar radiation calculator. The average radiation temperature estimator estimates the average room radiation temperature by using the temperature of the solar radiated article estimated by the solar radiated article temperature estimator.

Predicted mean vote estimating device and computer program product

In an embodiment, an air conditioning system for managing a server room, which has first and second spaces separated from each other, in which a server is installed between the first and second spaces, and supply air flowed into the first space is heated by heat generation of the server, and flows out as return air via the second space, includes: a cold air generation device; an air supply fan; a first differential pressure gauge; and a control device. The cold air generation device generates supply air satisfying a predetermined condition. The air supply fan flows the generated supply air into the first space. The first differential pressure gauge measures a differential pressure of a static pressure of the second space with respect to a static pressure of the first space.

Server room managing air conditioning system and air conditioning control method

According one embodiment, an air-conditioning system is connected to a server room, in which server racks accommodating a plurality of servers are placed between separated first and second spaces, by a return air duct and a supply air duct. In the server room, an airflow is formed so that cold air flown from under the floor into the first space is heated by heat generation of the servers and is flown out from the second space as return air. The system sets control contents for generating supply air within a previously determined supply air temperature target range and a previously determined supply air humidity target range and controls the operation of each device in the system based on the set control contents.

Air conditioning system and method for managing server room

Growing community of inventors

Chigasaki, Japan

Yasuo Takagi