Green Factories (procurement and production initiatives)
Saving Energy and Preventing Global Warming in Production Operations
Promoting Energy Savings at Production Sites
In line with its Green Factory certification system for comprehensively evaluating environmental activities at production sites, Konica Minolta strives to increase energy productivity and to reduce CO2 emissions from production operations through a variety of measures.
Energy Conservation Support Program
Konica Minolta has implemented an Energy Conservation Support Program in order to promote the reduction of CO2 emissions at production sites. Under this program staff members within the Group who are experts in process design, production equipment design, and energy management visit production sites and conduct inspections of everything from the energy management situation to the status of utilities and production equipment such as air conditioning and boilers, based upon which they recommend measures suited to each site. Using these recommendations, the expert staff and personnel at each site conduct simulations of the energy-saving effects, which help with implementing the measures.
Energy Conservation Support Program
Examples of Main Measures
|Improve productivity||Industrial engineering (IE) work analysis, yield rate improvement, installation of automatic machines, takt time reduction, production space optimization|
|Optimize equipment operation time||Shutdown during downtime, reduction of standby power consumption|
|Reconsider air conditioning operation||Temperature setting optimization, operating time optimization|
|Save energy in lighting||Thinning out lighting, conversion to high-efficiency lighting|
|Save energy in molding machines||Infrared heating, installation of servo motors, cylinder insulation|
|Save energy in compressed air||Installation of inverters, limited number of units, air pressure optimization|
|Reconsider refrigerator operation||Refrigerator integration, reconsideration of exit temperature setting|
|Use waste heat||Heat exchange at exhaust/intake, reduction of steam production by using waste heat from dehumidifiers|
|Reduce heat radiation loss||Steam piping insulation, piping integration, reduction of valve leaks|
Examples of Initiatives
Pursuing Energy Savings on the Production Floor, Including with Molding Machines and Refrigerators
(Konica Minolta Business Technologies (Dongguan) Co., Ltd.)
Konica Minolta Business Technologies (Dongguan) produces MFPs in the city of Dongguan, Guangdong Province, China. It achieved significant energy savings by improving the heating method for molding machines and changing the temperature settings for refrigerators.
The conversion from electrical heating to infrared heating for molding machines increased heating efficiency, enabling heating in a shorter time than before. Also, the addition of insulation to the surface of the heaters reduced heat radiation loss and helped reduce air conditioning burden by preventing the indoor temperature from rising.
Konica Minolta Business Technologies (Dongguan)
The temperature settings for refrigerators were changed according to application in light of the results of an energy-saving assessment conducted by a Konica Minolta expert. Raising the temperature setting of refrigerators for general air conditioning led to energy savings by increasing efficiency.
Energy Savings through Smaller Production Space and Shorter Production Time (Konica Minolta Business Technologies (WUXI) Co., Ltd.)
Konica Minolta Business Technologies (WUXI) Co., Ltd., located in Jiangsu Province, China, has adopted industrial engineering (IE) work analysis as a new endeavor aimed at reducing environmental impact through increased productivity. The analysis is based on specialized analytical knowhow cultivated in Japan by Konica Minolta. By thoroughly reconsidering operability and line of flow of production lines, the company reduced production space, shortened production times, and cut energy consumption, including that of air conditioning and lighting.
Konica Minolta Business Technologies (WUXI) Co., Ltd.
Utilizing Waste Heat from Production and Curbing Heat Dissipation to Ensure Energy Conservation (Konica Minolta Supplies Manufacturing Co., Ltd.)
With its head office in Kofu, Yamanashi Prefecture, Konica Minolta Supplies Manufacturing Co., Ltd. makes developers and photosensitive drums for multi-functional peripherals (MFPs). The company has achieved sharp reductions in energy consumption by utilizing the waste heat from the toner production process and curbing the heat dissipation from steam pipes.
Heat exchange with high-temperature water is typically used, but the company actively uses the waste heat from low-temperature water generated in the toner production process through heat exchange and produces heated water to be used in other processes. This significantly reduces the gas consumed to produce heated water.
The company also installed an automated control system to supply steam only when and in amounts needed to prevent heat from dissipating from the pipes.
Kofu head office at Konica Minolta Supplies Manufacturing Co., Ltd.
TOPIC: New Environmentally Friendly Research Building SKT
The new R&D building (SKT) opened in April 2014 at Konica Minolta Tokyo Site Hachioji integrates environmental facilities that will contribute to environmental impact reduction, including solar panels on the roof, an atrium that brings in lots of natural light, daylight sensors to reduce lighting electricity consumption, effective natural ventilation, and use of well water. As a building with excellent environmental friendliness, SKT received the highest certification, “Class S,” in the Comprehensive Assessment System for Built Environment Efficiency (CASBEE), which is an evaluation of the environmental performance of buildings led by Japan’s Ministry of Land, Infrastructure, Transport and Tourism. The building also won a fiscal 2014 Good Design Award from the Japan Institute of Design Promotion (JDP).
Certified as “Top Level Facilities” under Tokyo’s Environmental Protection Ordinance
Konica Minolta Tokyo Site Hino has been certified as among Tokyo’s Top Level Facilities since 2011 by the Tokyo Metropolitan Government under its Environmental Protection Ordinance, recognizing its outstanding activities to develop and promote initiatives for global warming prevention. The Tokyo Metropolitan Government acknowledges facilities undertaking such activities by certifying them with two classifications according to the degree of their commitment: Top-Level Facilities and Near-Top-Level Facilities.
While large-scale businesses are subject to mandatory reduction of greenhouse gas emissions under the Tokyo Metropolitan Government’s Environmental Protection Ordinance, the mandatory reduction rate for CO2 emissions is relaxed for certified facilities. For Top-Level Facilities, the mandatory reduction rate is lessened to half.