Mitsubishi Heavy Industries Thermal Systems, Ltd.

Osaka City University

The Kansai Electric Power Co., Inc.

University Public Corporation Osaka

Newjec Inc.

Other

Morikawa Sakusen Industries Co., Ltd.

Nagahiro, Tsuyoshi

Masaki Nakao

Masanobu Sakai

Yasuhisa Nakaso

Rinnichi Sai

Toru Yamaguchi

Kazuhiro Nakamura

Takeshi Fuchimoto

Shinsuke Sakae

Masatoshi Nishioka

Youichi Kobayashi

Craig Farnham

Tsuyoshi Nagahiro

Toshihide Morikawa

A geothermal heat utilization system includes a first well having a first upper opening and a first lower opening, and a second well having a second upper opening and a second lower opening. The geothermal heat utilization system further includes a first pipe, a second pipe, a first heat exchanger, and a second heat exchanger. The geothermal heat utilization system is capable of supplying underground water of an upper aquifer from the first upper opening to the second upper opening via the first pipe, and the geothermal heat utilization system is capable of supplying underground water of a lower aquifer from the second lower opening to the first lower opening via the second pipe.

Geothermal heat utilization system and operation method for geothermal heat utilization system

The geothermal heat utilization system is capable of supplying underground water of an upper aquifer from the first upper opening to the second upper opening via the first pipe, and capable of supplying underground water of a lower aquifer from the second lower opening to the first lower opening via the second pipe. Further, the geothermal heat utilization system is configured to pump hot water and at the same time, pump cold water.

A geothermal heat utilization system () includes a pumping well (), a water injection well (), a pipe () having two ends which are immersed in water stored in the pumping well () and the water injection well () so as to connect the pumping well () and the water injection well () to each other, a pump () and a pump () which are respectively provided inside the pumping well () and the water injection well () and pump up stored water through the pipe (), a valve () and a valve () which are respectively provided on a pressurization side of the pump () inside the pumping well () and a pressurization side of the pump () inside the water injection well (), and a heat exchanger () which is configured to exchange heat with the pipe ().

Geothermal heat utilization system and geothermal heat utilization method

A geothermal heat utilization system includes a heat source well facility, a heat source device having a refrigeration cycle including a compressor, a condenser, an expanded portion, and an evaporator, a primary refrigerant circuit that is connected to a first unit which is one of the condenser and the evaporator of the heat source device, heat exchange being able to be performed between the first unit and the well-side pipe, a secondary refrigerant circuit that is connected to a second unit which is the other of the condenser and the evaporator of the heat source device, heat exchange being able to be performed between the second unit and a load, and a mode switching unit that switches between a cold heat storage operation mode in which the primary refrigerant circuit is connected to the evaporator and the secondary refrigerant circuit is connected to the condenser and a cold heat discharge operation mode in which the primary refrigerant circuit is connected to the condenser and the secondary refrigerant circuit is connected to the evaporator.

The heat medium transport paths are arranged between the first building and the second building and transport heat media that transport heat energy. A temperature distribution acquisition means acquires the temperature distribution of the heat media that have temperatures being different from each other in the heat medium transport paths and that are sequentially transported in a state of having a predetermined length in the transport direction in the heat medium transport paths. A control means receives a load request of an air conditioner of the first building, and when a heat medium having the heat energy that satisfies the load request received reaches the first building, based on the temperature distribution acquired by the temperature distribution acquisition means, the control means causes the air conditioner of the first building to take out the heat energy from the heat medium reached.

Heat energy transport system, heat interchange system, and heat energy transport method

Growing community of inventors

Osaka, Japan

Masaki Nakao