Hitachi, Ltd.

Hitachi Astemo Ltd.

Masamichi Nakamura

Takahiro Miki

Hiroaki Ogawa

Tohru Watanabe

Akira Uenodan

Naoki Saito

Masashi Fukaya

Masato Utsumi

Nobuaki Gorai

Yu Ikemoto

Ikuo Shigemori

Hiroshi Iimura

Isao Hagiya

Jyunpei Ogawa

Satoshi Noda

Takayuki Ishikawa

Provided is a physical quantity detection device capable of improving noise performance of a flow rate detection unit as compared with the related art. The physical quantity detection deviceincludes a plate-like chip packagethat is arranged to protrude from the flow path of the measurement target gas and has a width W along the flow direction of the measurement target gas. The chip packageincludes a flow rate detection unit, an accelerating flow path, a measurement surface, a non-measurement surface, and a separation flow portion. The cross sectional area of the accelerating flow pathis reduced, and the flow rate detection unitis arranged. The separation flow portionpartitions the second sub-passageinto a measurement flow path facing the measurement surfaceand a non-measurement flow path facing the non-measurement surface. In the width direction Dw of the chip package, the end portionof the accelerating flow pathand the end portionof the separation flow portionare separated from each other.

Physical-quantity detection device

An energy operation system, apparatus, and method capable of stably supplying energy and providing adjustment control based on prediction precision and planning precision for energy supply and demand. An energy operation apparatus includes a demand predictor, planner, evaluator, and solution quality controller. The demand predictor predicts demand and/or a power generation amount of future energy in a management area. The planner prepares a future energy supply plan in the management area based on a prediction. The evaluator evaluates supply and/or demand conditions including at least one of future weather in the management area, energy demand in the management area, a demand density and/or a generation density of future energy in the management area. The solution quality controller controls the quality of at least one of a prediction solution of the demand predictor and the energy supply plan of the planner based on an evaluation result from the evaluator.

Energy operation apparatus, method, and system

Growing community of inventors

Tokyo, Japan

Masamichi Nakamura