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- To Protect the Global Environment
To Protect the Global Environment
ENECO Energie is one of the three main energy companies in the nederland. It provides a variety of services, including the supply of electricity, gas and heat.
At its ROCA power station, it generates electricity by burning gas. Moreover, it is engaged in an environmentally friendly project by which the heat and CO2 produced from that process are used in agriculture. Necessary for plant growth and photosynthesis, heat and CO2 are transported by pipeline to the greenhouses of nearby farmers. This also contributes to reducing energy consumption and CO2.
With the system supplied by Yokogawa, STARDOM controllers, which are suitable for use in networks, have been installed in the greenhouses, and ENECO Energie remotely monitors and controls them through Internet cables. Moreover, provisions have been made so that each farmer can provide necessary instructions, and obtain information, through ENECO Energie’s website.
STARDOM controller installed in the site cabinet
The Metropolitan Water Authority(MWA) supplies water to 1.8 million people in and around the city of Bangkok. To deal with the growing demand for water from the rapidly expanding city, MWA is also building a water-supply network divided into over 1000 blocks. With this network, however, water leakage and water loss, caused by pipe damage, equipment malfunction, inaccurate meters and more, had become a chronic problem, leading to water shortages.
In an MWA project in which Yokogawa participated, the goal was to reduce water loss by 30% by accurately monitoring pressure and flow in the water-supply network and promptly identifying places where leaks occurred. Thus, more than 200 STARDOM controllers and 1000 pressure transmitters and flowmeters were installed at key points in the network, and a system that centrally monitors the network via telephone lines was introduced as well. As a result, it has become possible to centrally monitor, in real time, data received from over 1000 block stations, and to immediately discover burst pipes and other abnormalities and readily identify leak locations. Thanks to this system, water loss has been greatly reduced and water resources are being more effectively used.
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Success Stories - Metropolitan Waterworks Authority, Thailand
Recycling waste oil is less environmentally burdensome, and more cost-efficient, than refining new fossil fuel. Aldwich Enviro-Management provides such a service at its plant in Kemaman, Trengganu, Malaysia. Waste oil collected from various places by tanker truck and other means is brought to the plant, mixed in the ideal proportions and then stored, after which it goes through various refining processes, being transformed into diesel oil, naphtha, fuel oil, and other high-quality, value-added petroleum products.
Yokogawa’s CENTUM CS 3000 R3 control system and field instruments were installed at the plant, where they are used to control all operations, from the loading and unloading of oil tanks to refining, shipping, and the emergency shutdown system.
Thanks to a system that combines highly reliable products with effective engineering and cooperative customers, stable waste-oil recycling has been realized.
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Success Stories - ALDWICH ENVIRO-MANAGEMENT SDN. BHD, Malaysia
The Mufulira Copper Smelter processes more than 400,000 tons of copper ore a year. With the aging of the facilities, however, the electric furnace had been rebuilt.
A new smelter was now to be installed; and in order for it to comply with Zambia’s environmental regulations, a sulfuric acid plant that would remove the sulfur oxide, particulate matter, and other environmental pollutants from the smelter’s off-gas also had to be constructed.
In Australia, Yokogawa built a control system for the entire facility ? smelter, acid supply, sulfuric acid plant, etc. ? and shipped it to Zambia. So that local staff could operate the control system, Yokogawa also cooperated in their long-term training.
We believe that carrying out such environmental efforts and local support in developing countries will become increasingly important.
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The Tachibanawan Thermal Power Station, owned by the Electric Power Development Co., Ltd., is located in Anan City, Tokushima Prefecture. With two 1,050 MW coal-fired generating units that began operating in 2000, it is one of the largest coal-fired power plants in Japan. A source of power for a wide area in western Japan, it stably supplies electricity to four regional utilities: Kansai Electric Power Co., Chugoku Electric Power Co., Shikoku Electric Power Co., and Kyushu Electric Power Co. Consideration was given to ensuring that the power station’s design harmonized with the surrounding landscape. Moreover, as environmental protection measures, flue gas desulfurization systems and other state-of-the-art environmental facilities were installed to remove the NOx (nitrogen oxides), SOx (sulfur oxides) and ash dust. Part of the removed coal ash is reused as cement material. For the integrated monitoring and control of these extensive environmental facilities – gas desulfurization systems, electrostatic precipitator, coal storage and conveying facilities, ash treatment facilities, waste-water treatment facilities – Yokogawa’s CENTUM CS 3000 is used. To centrally monitor the facilities, which are widely spread out and include approximately 30,000 data points, Yokogawa created a user-friendly interface equipped with two mouse-operated 100-inch screens and a guide system that employs surveillance monitors and sound. Thus, Yokogawa’s control technology is helping to reduce the environmental burdens on the surrounding area while supporting the stable supply of electricity.
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Photo: Electric Power Development Co.,Ltd.
