Source:JASE-W Japanese Smart Energy Products & Technologies

https://www.jase-w.eccj.or.jp/technologies/index.html

F-87

Keywords

equipment or facility

Y3

Delectricity

Z5Construction

Takasago Thermal Engineering Co., Ltd.

Swirling Induction Type HVAC System SWIT®/TCR-SWIT®
Features◆ The SWIT® (Swirling Induction type TAKASAGO HVAC System) is a swirling induction type HVAC
system that leverages the natural phenomenon of warm air rising and cold air sinking in a confined
space.
◆ Many swirling rotational flows are triggered to significantly increase the induction rate near air outlets.
The temperature of the living space is sustained at a uniform level, even with a gentle air flow.
◆ The air flow is weaker than fluid mixing air conditioners, as the temperature is controlled with the outlet of
air at near room temperature for air conditioning, which results in energy savings and lower costs.
HeatingCoolingContaminatedwarm airCold air in living space removed

Inducedcirculating
layerSpace heating without the discomfort of air drafts

Porous faceplate

Air in living spaces gently circulated

The uniform temperature ventilation efficiency isimproved with a small amount of air flow, by focusing
on the living space only.
The surrounding air is induced by therotating air flow from the air outlet to operate
the system with a low air flow and outlet airtemperature at near room temperature for awork site or living space, attaining a
comfortable space, as well as a reduction in
the air conditioning energy and facility costs.

Induction

Air outlet

Air outlet

Induction

Induction

Air outlet

Rotating guide vanes
inside the air intake unit

Basic Concept or Summary◆ The TCR-SWT® (Takasago Clean Room Swirling Induction Type) is a next-generation clean room
technology that leverages the SWIT to sustain the indoor environment of large clean rooms while savingenergy, which was difficult to achieve in the past.
Non-unidirectional airflow clean room
Air exhaust
and return

Air supply
A large volume of air is
introduced to mix anddilute the air throughout
the entire room
All the air is mixed
and diluted

Temperature
Distribution
Induction

Heat source system(heat sink)
Heat source system(Heat source)

The variance of thetemperature in work
areas is reduced
through induction
SWIT

Air transporting capacity(Circulating air conditioning)

Air transporting capacity(air intake and exhaust)

An annual energy consumption
composition comparison(24-hour operation)–36.4%

Cleans only the lower
part of the room with aweaker air flow

Thermalbloom

Air exhaust
and return
An annual energy consumption
composition comparison(24-hour operation)

Fundamental
principle

Dust particles are carried
up through the air by thethermal updraft

Reduces energy consumption

Heat source system(heat sink)–6.1%

Heat source system(Heat source)
Air transporting capacity
Air transporting capacity(air intake and exhaust)(Circulating air conditioning)The characteristics of SWIT® isleveraged for a superior ventilation
efficiency to maintain a heatedenvironment and clean conditions witha weaker air flow.
A compliance validation experimenthas already been implemented in theultrafine air conditioned clean rooms of
JIS Class 5, resulting in a favorable
operational history for the clean roomsof semiconductor manufacturing
processes (preprocesses).

Effects or Remarks

F-87◆ Energy savings are realized, with savings on the initial outlay and running costs.
Initial cost

Running cost
* Approx. 6,000 m2 (Class 8)- Circulation with TCR-SWIT air conditioner -Mixing
air conditioning
CRTCR-SWIT

Energy consumption ratio (%)

Ratio of initial cost (%)* Cost set to 10 yen/kWhSWIT® award winning record
The 7th Environmental and Equipment Design Award* The 24th Engineering Promotion Prize was awarded
by the Society of Heating, Air-Conditioning andSanitary Engineers of JapanThe 2012 Energy Conservation Grand Prize of theAgency of Natural Resources and Energy
Commissioner’s Award

Mixing airconditioningCR
20 times/h

Secondary air conditioning facility cost

TCR-SWIT
TCR-SWIT
designoperationalspecifications improvement
13 times/h8 times/hSecondary air conditioning facility operating costs

reduction of about 40%!

reduction of about 80%!

(When circulated 80 times/h)

An example of an implementation at an organic EL manufacturing plant: Ambient condition:
23±2°C 55 ±10%; Cleanliness: C/L 100k (@0.3μm), equipment installation rate 100%

Installation in Practice or Schedule
Number of delivered projects

439 projects

Number of delivered units

10,938 units

Construction area

2,814,757 m2

Delivery destinationindustry types

NewRenovations constructions

Primary delivery destinations: Manufacturing plants

Clean rooms, assembly processes, printing, book binding,iron casting, painting, semiconductors, circuit board partsand components, food products, automobile parts andcomponents assembly, vehicle servicing, medicalproducts, sewing machines, tires, battery and othermanufacturing processes.

[Ratio of new and renovation constructions]

Other delivery destinations

Warehouses, gymnasiums, power utility rooms, exhibition
halls, department stores, universities, atriums, researchfacilities, etc.

Construction area per project

Ratio of delivery destination uses
Manufacturing plant
Gymnasiums
Atriums
Warehouses
Exhibition halls
Power utility rooms

Number of properties

Contact:

Air draftelimination
Air quality
improvements
Heat
countermeasures

Novelty

Energysavings[Purpose of implementation]
Number of projects [cases]

Takasago Thermal Engineering Co., Ltd.
International Business Head Quarters
Tel: +81-(0)3–6369-8233
URL: https://www.tte-net.com/index.html* Data as of March 2021