INSIGHTS

2022.12.20

MEP Engineering Speak: Environment and Equipment Ideas Note Vol. 02

Lighting designs born from a variety of thoughts and environments

Shinryo Shinjyo Building

MEP Engineering talks. Environment and equipment idea notebook TOP

Making the most of disadvantages to create an attractive lighting plan

Shinryo Shinjyo Building, located in the city center, is taking on a number of new challenges, such as minimizing floor height while maintaining ceiling height in order to maximize floor area within the height restrictions imposed by the building plan. As a result, there is almost no space above the ceiling where equipment is usually installed, and the girders protrude into the office space.
To solve these problems, we came up with a lighting plan that takes advantage of the disadvantage of "attaching lighting fixtures to a protruding beam-type structure." Generally, if lighting fixtures are not attached to the ceiling, the ceiling surface will be dark, and even if the work desk is bright, it tends to look like a "dark space." Therefore, here, light guide plate lighting fixtures that distribute light both upward and downward are attached to the beam-type structure, illuminating not only the downward surface but also the ceiling surface, ensuring illuminance on the work surface while creating a sense of brightness throughout the room. Furthermore, by adopting a task-ambient system in which task lights are used in conjunction with the beam-type system when the brightness on the work surface is insufficient, further energy savings are achieved, contributing to the achievement of ZEB Ready.

Left: Office room. Light guide panel lighting is installed under the beams.
Right: How light guide plate lighting works. In addition to being directed downward, the light is particularly strong directed upward at about 45 degrees.

Lighting inspired by lanterns

The planned site is close to Kanda Shrine, and the mikoshi (portable shrine) procession route for the Kanda Festival runs right in front of the building. In order to realize a lighting plan for facade that incorporates the atmospheric "shitamachi" feel, we aimed for a lighting design that would be appropriate for the night view of the alley, rather than a plan that would brightly illuminate the building itself, given that there is an apartment complex in front of the building.
Inside the glass facade there is a staircase that is the route taken by employees, so lighting was placed in specific areas to ensure the necessary illumination for the area while still making the building stand out softly like a lantern.By using warm color temperature fixtures, a warm atmosphere was created, and although it is an advanced, environmentally friendly building, it has an appearance that blends in with the downtown area.

facade at night. The interior is vaguely visible.

Realizing eco-friendly operation through visualization of power consumption and collaboration with sensor technology

As an environmentally friendly building, Shinryo Shinjyo Building not only incorporates technologies such as improved exterior performance, the adoption of highly efficient air conditioning equipment, and energy generation through solar power generation into its building plans, but also creates a visualization system that meticulously measures the electricity used by lighting, outlets, air conditioning equipment, etc., to enable even more eco-friendly operation after the building is completed, making it possible to understand how much electricity is being used by what equipment and when.
The measured data is collected in real time and can be viewed at any time on a web browser. In combination with occupancy detection sensors, this can be used to prevent forgetting to turn off lights and air conditioning, and to eliminate waste by setting schedule controls, so that the building can continue to be used as a "more efficient building with less environmental impact."

Operation status and expected data are visualized in an easy-to-understand manner.

Designer's Voice

Designer

Electrical MEP Engineering Department / Joined in 2017

Masahiro Iida

Masahiro Iida

There were many aspects that were different from those of a typical office building, such as the lighting plan, solar power generation, visualization of electricity usage, and consideration for the surrounding environment, but by repeatedly coordinating with the client, we were able to create a better building, which made it an extremely rewarding project.
*Affiliation at the time of project assignment

Data

Property Name

Shinryo Shinjyo Building
Location

2-9-2 Kandamachi, Chiyoda-ku, Tokyo
Site area

595.38㎡
Total floor area

4,619.55㎡
scale

9 floors above ground, 1 floor below ground
height

35.91m
Completion

July 2020
Main Applications

Offices, residences
Design/ Construction Supervision

Mitsubishi Jisho Design
Construction

Obayashi Corporation (architecture), Shinryo Corporation (air conditioning), Shiroguchi (sanitation), Daiei Denki (electricity)
Awards
  • 2023 ASHRAE Technology Award, New Office Building Category: First Place (American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) / USA)
  • 2022 ASHRAE Region XIII Technology Award New Office Building Category: Asia Region (Region XIII) Grand Prize (American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) / USA)
  • 2022 ASHRAE Japan Chapter Technology Award, New Office Building Category: Grand Prize in Japan (American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Japan Chapter /USA)
  • 60th SHASE Award, Engineers Prize /2021, Technology Development Division (The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (SHASE) of Japan, Japan)
  • 60th SHASE Award, Engineers Prize /2021, Building Equipment Category (The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (SHASE) of Japan, Japan)
  • Winner the 20th Environmental and Equipment Design Award 2021 (II Division: Comprehensive Architecture and Equipment Design Division / "Shinryo Shinjyo Building" "Dynamic Range Radiant Air Conditioning System") (Association of Building Engineering and Equipment)
  • 10th (Reiwa 3) Carbon Neutral Award /2021 (Japanese Association of Building Mechanical and Electrical Engineers)
  • 2020 Good Lighting Award Tokyo Chapter Jury Special Award (The Illuminating Engineering Institute of Japan of Japan)
  • Winner the 18th Environmental and Equipment Design Award 2020 (Category I: Equipment and Systems / "Air-Soarer" that realizes variable air volume Coanda air conditioning system) (Association of Building Engineering and Equipment) *As of December 2022 / Includes awards for various elemental technologies introduced

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Lighting designs born from a variety of thoughts and environments

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MEP Engineering talk. Environment and equipment idea notebook

Update : 2022.12.20

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