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2023.07.21

High-precision digital twin model
Demonstration of thermal equipment solution "HEAT DX" begins

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Mitsubishi Jisho Design Inc. and Osaka Energy Services Co., Ltd. have contributed to a decarbonized society through the optimal design, operation, and maintenance management of district heating and cooling (DHC) plants, which boast top-class energy efficiency.
Using the data analysis technology required to build load forecasts and operation models based on this know-how, along with the latest AI technology from Relationship Consulting Co., Ltd., we have constructed a highly accurate digital twin model of thermal equipment and have begun demonstrations of "HEAT DX" (registered trademark pending), which solves new challenges such as advanced demand response and further improvement of equipment quality that could not be solved with previous technologies.

Through collaboration between DHC Design, Operation Management, and AI Engineering,
"HEAT DX" uses high-precision digital twin models to solve new-age challenges

今回、構築の対象となった「⼤阪駅DHC プラント（第2 プラント）」（⼤阪府⼤阪市、運⽤：⼤阪エネルギーサービス株式会社）は、省エネ⼤賞や空気調和・衛⽣⼯学会賞技術賞を受賞し、その運転・管理技術が⾼く評価されてきました。こうした実績からなる運⽤データによるデジタルツインモデルを活⽤したDX化により、熱設備業界とそれを取り巻く社会課題を解決するとともに、仮想空間と現実空間の⾼度な融合を図るSociety 5.0 の実現に貢献します。

"HEAT DX" is an innovative service brand that "optimizes all operations, from operation to inspection and maintenance of thermal equipment, through digital solutions using digital twin technology and IoT devices (Wi-Fi cameras, etc.)." Currently undergoing operational support verification at the above plant, the company aims to further develop and enhance the service.

FY2015 Energy Conservation Awards, Energy Conservation Center, Japan Chairman's Award (Sponsor: Energy Conservation Center, Japan)
52nd Japan Society of Heating, Air-Conditioning and Sanitary Engineers of Japan Technology Award, Building Equipment Category (Sponsor: Japan Society of Heating, Air-Conditioning and Sanitary Engineers of Japan)

"HEAT DX" development consortium. Each company brings their own expertise to the table and is conducting demonstrations.

The "Second Plant," where the "HEAT DX" demonstration will be conducted, will supply heat to the Osaka Station "North Gate Building" (center of photo).

Development Background

In order to realize a decarbonized society, the introduction of power generation facilities that utilize renewable energy (solar, wind, etc.) is progressing.
On the other hand, because the production (supply) volume of this energy fluctuates depending on weather and other conditions, demand response (DR) is required for consumers to increase or decrease their electricity demand depending on the supply situation.

In this context, district heating and cooling facilities (DHCs) are equipped with power supply and demand adjustment equipment such as large-scale thermal storage systems and are expected to serve as one of the "urban DR resources." However, to make effective use of these facilities, operation managers are required to have more advanced experience and operating skills than ever before.
Against this background, HEAT DX, which provides operational support for DHC plants, was demonstrated and launched with the aim of resolving the thermal equipment industry and the social issues surrounding it.

A service provided by "HEAT DX" that optimizes the entire process of operating, inspecting, and maintaining thermal equipment through digital solutions using digital twin technology and IoT devices.

What is driving assistance with HEAT DX?

Data such as outside air temperature and humidity, flow rate, temperature, pressure, and valve opening were compiled into a data set that can reproduce system operation, and a highly accurate digital twin model was constructed using the latest machine learning. Operation support with "HEAT DX" supports optimized operation by providing real-time information from the cloud-based system using this digital twin model to the operator of the actual plant, including load forecasts, operation plans, operation monitoring, and operation evaluation.

Driving assistance with "HEAT DX"

A comparison of each data prediction from the digital twin model with the actual measured values demonstrated a high degree of agreement.

Future developments

Currently, in addition to supporting the operation of DHC plants, we are taking it a step further and starting to automate inspection work using IOT devices with the aim of reducing the labor required for maintenance personnel.

Going forward, we will enhance our operation and maintenance database to achieve "reduced energy costs by responding to new electricity markets" and "reduced labor and maintenance costs by optimizing maintenance." By providing optimization solutions that extend to comprehensive heating facilities other than DHC, we will contribute to the realization of Society 5.0.

Company Profile

Relation Consulting Co., Ltd.

Head office address: 2-28-7 Ebisu, Shibuya-ku, Tokyo 150-0013
Representative Director and President: Shinji Takahashi
Business description: We conduct simulations of transactions using grid storage batteries in the supply and demand adjustment market, capacity market, and wholesale electricity market, as well as economic analysis.
As part of its information processing services business, HEAT DX carried out information processing, including the creation of a digital twin environment.
Established: December 2019
Website: https://re-lations.jp/

Osaka Energy Services Co., Ltd.

Head office location: 3-2-62 Umeda, Kita-ku, Osaka 530-0001
Representative Director and President: Yasushi Negi
Business details: For over 30 years since 1991, we have been providing energy conservation and stable supply 24 hours a day, 365 days a year to the largest terminal zone in Western Japan, centered around Osaka Station. Currently, we are contributing to the development of the city by building new plants and expanding our supply area as part of the redevelopment of surrounding areas such as "JP Tower Osaka" and "Gran Green Osaka."
HEAT DX provided operational data and met the needs of operation and maintenance managers.
Established: May 1989
Website: http://oesdhc.jp/

Mitsubishi Jisho Design Inc.

Head office address: Marunouchi 2-chome Building, 2-5-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005
President and CEO: Junichi Tanizawa
Business Description: For over 50 years, since its predecessor Mitsubishi Estate, the company has had a specialized DHC design department within the company, architectural design and construction supervision of DHC (plants, regional piping) in urban development throughout Japan, consulting on optimal plant operation, and technical support for overseas DHC. The company is an organizational design office that handles a wide range of services both domestically and internationally, from urban planning to Architectural Design, planning and consulting, Renovation, and Construction Management.
HEAT DX constructed the dataset and analyzed and evaluated the model data.
Established: March 2001
Website: https://www.mjd.co.jp/

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High-precision digital twin modelDemonstration of thermal equipment solution "HEAT DX" begins

Through collaboration between DHC Design, Operation Management, and AI Engineering,"HEAT DX" uses high-precision digital twin models to solve new-age challenges