Mitsubishi Heavy Industries Technical Review Vol. 59 No. 2 (June 2022)
1Facility Engineering Action Based on Total Civil and Plant
Engineering for Mitsubishi Heavy Industries Group's
Product to Offer Customers a Wide Range of Services
Mitsubishi Heavy Industries
Tr a n s p o r t a t i o n a n d C o n s t r u c t i o nEngineering, Ltd.
Engineering Business Unit
Sales Department+81-45-200-7697

Mitsubishi Heavy Industries (MHI) Group provides a total package of equipment andproducts for optimal business operations using equipment and products manufactured and sold bythe group and combining comprehensive engineering capabilities of the group in the fields of civilengineering, construction and plant engineering in its "Facility Engineering" activities. It is acollaborative project of MHI Group, and this report presents the Facility Engineering activity
cases in which Mitsubishi Heavy Industries Transportation and Construction Engineering, Ltd.
was engaged.

|1. Introduction
We, Mitsubishi Heavy Industries Transportation and Construction Engineering, Ltd., haveaccumulated technological capabilities by promoting construction projects, mainly plants andbuildings for Mitsubishi Heavy Industries (MHI) Group companies and their affiliated partnercompanies. In addition, we have been involved in many plant construction projects in various
fields, including the MHI Group's thermal, geothermal, biomass, and other power generation
projects, as well as chemical, environmental, nuclear, and transportation-related projects, and havecultivated comprehensive engineering capabilities centered on civil engineering, construction, andplant engineering.
Table 1 shows the representative collaborative plant project cases of MHI Group companies
and us so far.
Table 1

Representative collaborative plant project cases of MHI Group companies and us
From 2017 to 2018

Collaboration
counterpart

Mitsubishi Heavy Industries,
Ltd.

Facility

Kuju Geothermal Plant
Civil engineering andconstruction work(Oita)

From 2020, currently underconstruction
Mitsubishi Heavy Industries
Environmental & Chemical
Engineering Co., Ltd.
Kyoto Environmental
Preservation Public
Corporation
Civil engineering andconstruction work
(Kyoto)From 2021, currently underconstruction
Mitsubishi Heavy Industries,
Ltd.
Chokai Minami Biomass
Power Station
Fuel warehouse construction
work(Yamagata)

Exteriorview

In recent years, MHI Group has been developing group companies' collaborative projects inwhich MHI Group's products and comprehensive engineering capabilities of civil engineering,construction, and plant engineering are combined to solve customers' problems in a one-stopmanner. These are collectively called “Facility Engineering” activities.
In these activities, MHI Group works with the customer to provide optimal solutions for theMitsubishi Heavy Industries Technical Review Vol. 59 No. 2 (June 2022)
2

project from its initial stage, such as energy saving at the facility, cost reduction, and shortening ofconstruction period. By enabling customers to place a collective order for plant equipment andbuildings, their workload can be reduced.
These activities were started as sales expansion activities of MHI Group companies, andhave been expanded nationwide while strengthening cooperation of the Plant and Infrastructure
Domain, the Logistics, Thermal, and Drive Domain, as well as corporate sectors in the head officeof Mitsubishi Heavy Industries, Ltd. and branch offices. As a result, these activities have beenhighly evaluated by customers (Figure 1, Figure 2).

Figure 1

Providing optimal solutions to customer

Figure 2

Illustration of solutions for food factory|2. Achievements of Facility Engineering
Table 2 shows representative Facility Engineering cases in which we were engaged incollaboration with MHI Group companies.

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Table 2Collaboration
counterpart
Facility

Representative Facility Engineering cases in which we were engaged incollaboration with MHI Group companies

2016 to 2018
Mitsubishi Heavy Industries
Air-Conditioning andRefrigeration, Ltd.
Kawashima Food Co., Ltd.,
Refrigerated Warehouse inFactory 2 (Tokyo)

2017 to 20182019 to 2020

Mitsubishi Heavy Industries
Machinery Systems, Ltd.

Mitsubishi Logisnext Co.,
Ltd. (ML)

Kamotsuru Sake Brewing
Co., Ltd., Bottling Factory(Hiroshima)

Japan Engine Corporation,
Automated Warehouse(Hyogo)

Exterioror interiorview

This chapter explains the following two recent achievements as representative example casesof Facility Engineering activities:(i)
Cogeneration equipment for Fusogosei Co., Ltd., which was a collaborative project ofMitsubishi Heavy Industries Engine & Turbocharger, Ltd. (MHIET) and us(ii) Refrigerated warehouse for Kyoto Enkangyo Oroshi Kyodo Kumiai, which was acollaborative project of Mitsubishi Heavy Industries Air-Conditioning & Refrigeration,
Ltd. (MJR) and us

2.1

Gas engine cogeneration equipment for Fusogosei Co., Ltd.

Fusogosei Co., Ltd. is one of the leading companies in Japan that manufactures and sells
building interior materials (floor materials, wall coverings, etc.) and home furnishings (tablecloths,shower curtains, floor mats, and other products). In 2021, we installed cogeneration equipment thatuses an MHIET gas engine as its main engine in the Kuki Factory of Fusogosei Co., Ltd. in Kuki
City, Saitama Prefecture.
(1) Project outline
The Kuki Plant had been using a gas engine cogeneration equipment on a fixed-termlease contract and purchased electricity needed for production.
In recent years, the demand for electric power for their production equipment has been
increasing, and the reconstruction of the power source with an eye on the future has become anissue. For this project, MHIET and we asked the customer about its intentions and proposed aplan to install new cogeneration equipment consisting of two 1000kW gas engines (producedby MHIET) since the existing equipment is aging and received the order.
Table 3 Project outline of gas engine cogeneration equipment for Fusogosei Co., Ltd.
Construction site
Installation area
Gas engine generator
Absorption chiller
Auxiliary equipment
Overall construction period
On-site construction
Test operation and delivery

Fusogosei Co., Ltd. Kuki Factory in Kuki City, Saitama Prefecture (Figure 3)
Approximately 430m2 (22.9m x 18.5m)
1,000 kW x 2 units (including steam and hot water recovery and power
failure response functions)
90RT x 1 unit (using hot water)
Cooling tower, pump, water softener, deaerator, sound proof wall
November 2019 to January 2021 (2019/2020 subsidy multi-year project)
June 2020 to December 2020
End of February 2021

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Figure 3(2)Installation layout

Technological issues
The customer had a plan to construct sound proof walls surrounding the outer peripheryof the new power generation equipment area as a measure against noise emissions to adjacentareas to reduce noise by 20 dB on the boundary line of the site by installing gas engines(Figure 4 (b)).
We conducted a noise simulation (Figure 4) to optimize the layout of the sound proof
walls, and streamlined the area of the sound proof walls to 149m2 (Figure 4(c)), reduced by
25% from the initially planned 197m2, thereby reducing the required costs.

Figure 4

Sound proof wall shape and contour diagram of noise simulation result

We designed the optimum equipment layout in the limited site by fully utilizing 3D CAD. In
addition, we developed the piping plan and piping isometric drawings by using the automaticfunction to improve the quality and efficiency of the design. Figure 5 shows the 3D CAD plandrawing, and Figure 6 shows a panoramic view of the completed facility. Figure 7 shows aphotograph of the sound proof walls installed. By effectively utilizing 3D CAD, we were able torespond precisely to the customer request and received a favorable reception.

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Figure 5

3D CAD output

Figure 6 Panoramic view of completedfacility(3)2.2Figure 7

Installation of sound proof walls

ResultAs planned, this equipment has been in full-scale operation since February 2021 andsupplies electric power to the factory with both of the gas engines on weekdays and with one of
the two gas engines on weekends.
Today, one year after completion, the equipment is operating steadily as planned.
In this project, we not only sold the gas engine, but also provided EPC work for the entire
gas engine system, including the auxiliary equipment, foundation and civil engineering work,and test operation. Due to this, we were able to respond to requests in detail from the customer,
who highly evaluated the result of this project as a one-stop activity of the MHI Group.
Fusogosei Co., Ltd. is also planning construction of various additional equipment. We
will continue to propose Facility Engineering through MHI Group's one-stop activities.

Refrigerated warehouse for Kyoto Enkangyo Oroshi Kyodo Kumiai

Kyoto Enkangyo Oroshi Kyodo Kumiai is a cooperative association of wholesalers that
handles northern seas products such as salmon, dried sarline such as small dried sardines, dried fish
such as dried flounder, and boiled products such as boiled crabs at the Kyoto City Central
Wholesale Market.
We participated in the project for building a refrigerated warehouse in collaboration withMJR.
(1) Project outline
We started to participate in this project after MJR, which was in the process of deciding
on the equipment for the new construction of the customer's refrigerated warehouse,recommended us to the customer as a building construction company. Based on discussions
between the customer, MJR, and us that had been repeated from the basic planning stage of theMitsubishi Heavy Industries Technical Review Vol. 59 No. 2 (June 2022)
6facility, we realized streamlined specifications and cost reductions. As a result, we werecontracted to design and construct the building in which the refrigerated warehouse is installed
as a whole.
Table 4

Project outline of refrigerated warehouse for Kyoto Enkangyo Oroshi Kyodo
KumiaiConstruction site
Structure and scale
Overall construction
periodStart: December 2021, Completion: December 2022

Cold storage equipment

Start of cold storage equipment work: May 2022, Start of freezing test run:December 2022 (start of cooling)

Figure 8(2)Kyoto City, Shimogyo Ward
3-story steel structure, Building area 1,368m2, Total floor area 3,757m2[Refrigerated warehouse specifications] 1st floor: -8°C, 2nd and 3rd floor:-25°C, Some areas of 2nd and 3rd floor: ±0°C to +10°C (Figure 8)

Design plan view and elevation view

Technological issues
Considering the temperature difference between the refrigerated warehouse and theoutside, drainage passages for dew condensation were installed between the outside AutoclavedLightweight aerated Concrete (ALC) wall and the internal heat insulation panels.
This is a measure against the occurrence of dew condensation and is effective forpreventing water leakage into the building.
In addition, frost heaving prevention pipes were installed at the bottom of the concreteslab in the first floor refrigerated warehouse, the temperature of which is -8°C, as a measureagainst the ground freezing.
The frost heaving prevention pipes are a measure to avoid frost heaving, which is aphenomenon where the water in the soil freezes and the volume expands and pushes up thefloor when the underfloor of the cold storage is continuously cooled for a long time. The frost
heaving pipes are laid before the floor is constructed. Ground control, in which soil is replacedwith gravel, is one of the measures to prevent frost heaving, and this time it was adopted
together with the frost heaving prevention pipes.

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In the layout plan, the specifications, dimensions, layout position, etc., were determinedbased on past actual data, taking into consideration the internal temperature conditions(Figure 9).

Figure 9: Frost heaving prevention pipe layout drawing and detail view(3)

Construction status
In February 2022, the installation of foundation reinforcing bars and the placement offoundation concrete were completed (Figure 10).
After that, backfilling work was carried out, frost heaving prevention pipe laying and slab
work were performed, and as of April, erection of a steel frame is being undertaken(Figure 11).
The building construction will be completed in December 2022, and cooling of therefrigerated warehouse will be started in the same month (Figure 12).

Figure 10 Placement offoundation concrete(4)

Figure 11 Erection of steel
framesFigure 12 Illustration ofcompleted refrigerated
warehouse

Other collaboration in refrigerated warehouse field
In parallel with this project, we received an order for all-weather automotiveenvironmental test equipment (an environmental wind tunnel) for a certain company(Figure 13) in collaboration with MJR. This case requires technologies to counteract noise
during tests and create a low-temperature environment. We plan to provide better equipment
and facilities to the customer by utilizing our know-how for simulating noise and handling
low-temperature environments presented in this report.

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Figure 13 Schematic illustration of automotive environmental
test equipment|3. Conclusion
As described in this report, we offer optimal factory and building construction by utilizing
MHI Group's products and equipment and our comprehensive engineering capabilities centered on
civil engineering, construction, and plant engineering, which are our strengths, in a collaborative
manner, to provide customers with an efficient business environment and energy saving andresource saving for carbon neutrality. We will continue to promote "Facility Engineering" tooptimize the world's infrastructure development and contribute to the realization of a safe, secure,and comfortable environment for the society in which people conduct their lives.