... but the URL you have requested was not found. To find what your are looking for please browse or search the ACM Digital Library. We apologize for this inconvenience. Please contact us with any questions or concerns regarding this matter: Volume 57, March 2013, Pages 88–95 A novel polymer-arrayed electrostatic precipitator with electrical resistance material for the removal of fine particlesa b Received 16 August 2012, Revised 17 October 2012, Accepted 17 October 2012, Available online 29 October 2012Electrostatic precipitators (ESPs) have been widely used for air purification applications as they have no degradation issues and do not need to be replaced periodically. However, the generation of ozone by ESPs has been regarded as one of their most serious drawbacks. This paper presents the development of an ozone emission free ESP comprising a carbon brush ionizer and a polymeric arrayed collector (PAC). The collector consisted of sixty layers, where each layer had three stratums: polyethylene terephthalate (PET) film, conductive ink (CI), and PET film.

The performance of the ESP was evaluated for three CI resistance levels: 107, 1010, and 1013 Ω/m2. The ESP was evaluated for particle filtration efficiency in a wind tunnel with a 0.3 μm challenge aerosol for an applied voltage ranging from 3 to 9 kV. The clean air delivery rate (CADR) was evaluated by coupling the ESP to a commercial air purifier to deliver purified air to a controlled 30-m 3 chamber in which particle concentration and ozone monitoring instruments were placed. does idylis air purifier remove moldSingle pass ESP efficiency peaked at 89.5% for a high voltage (9 kV), high resistance (1013 Ω/m2), and low face velocity (1 m/s). honeywell oscillating tower air purifier hfd 120 qThe CADR for the ESP was 1.2 times higher than that for a standard high efficiency particulate air filter, with no ozone generation in a 24-h test. honeywell f100 media air cleaner review

Thus, the proposed PAC-based ESP provides a viable solution for an ozone-free ESP, one that retains the benefits while eliminating the risk.Highlights► A novel electrostatic precipitator (ESP) that generates no ozone in a 24-h test is developed. ► The ESP is comprised of a carbon brush ionizer and a polymeric arrayed collector (PAC). ► A layer of the PAC consists of two insulated polyethylene terephthalate films and conductive ink. ► The single pass collection efficiency of the ESP is characterized. ► The clean air delivery rate by coupling the ESP to a commercial air purifier is characterized.Keywords; ; ; ; ; Copyright © 2012 Elsevier Ltd. Skip over navigation to the main contentDocument PreviewRemoval of SO^sub 2^ from Simulated Flue Gases Using Non-Thermal Plasma-Based Microgap DischargePDF not available.Hot Metal Capacity : 4.70 MT / year Steel-making through BOF, VAD/Ladle Furnace/RH-Degasser and Continuous casting route Annual Capacity: 1.425 MT Cast steel Continuous Casting Shop: 4 Slab Casters, 1bloom caster, 1Combi caster

Steel-making through Twin Hearth Furnace (THF) route : * Customised product campaigns are being taken up for shorter durations in case of light structurals and rounds for compliance of smaller quantity orders as per committed delivery within the month. Wire Rod Mill Capacity - 4,20,000 T The modern Plate Mill rolls out heavy and medium plates, as well as those for pipe manufacturers. Plates of wide variety, in any required size, and strength, chemical and physical properties, can be produced here. It has capacity to produce high pressure, boiler quality and high tensile steels. Shipbuilding plates, conforming to Lloyds specifications, and pressure vessel boiler plates, conforming to various ASTM, ASME standards, have withstood the challenges of nature and time. Some of the unique features of the mill are on-line finishing facilities and off-line normalising facilities. Bhilai has the widest plate mill in the country, and it uses continuously cast slabs as input. Liquid steel produced under controlled conditions in the LD Converters is rinsed with argon gas to homogenise the composition as well as to remove non-metallic inclusions before continuous casting so as to ensure the production of high quality feedstock for the Plate Mill.

As per customers' requirement or specifications, plates are normalised in a roller hearth normalising furnace. To cater to the changing needs of the customers and to increase the market share, various new products were developed and commercialised through process improvement and R & D. BSP’s Mission of developing 12 product grades in a year, that is, at least one New / Customised grade each month, has again been accomplished with the development of 12 products in the Financial year 2014-15. The list of the new product grades developed and rolled in FY 15 are as under - Vacuum Arc Degassing: This unit ensures production of low sulphur steel with lower gas contents. Precise control of casting temperature, composition and improved steel cleanliness is achieved. RH Degasser(2nos): A 130 T capacity RH (Ruhrstahi Heraus) Degassing Unit was installed mainly to remove hydrogen from rail steel. All rail heat produced in SMS-II have hydrogen level < 1.5 ppm. Ladle Furnace(2nos): It is installed to process steel to reduce diversion due to chemistry and to process cold heats or return heats.

The 130 T furnace also has benefits like reduction in tapping temperature of BOF, improvement in lining life of BOF, etc. It acts as a buffer between BOF & CCM for holding the heats, reduce consumption of ferro-alloys, carbonisers and deoxidiser and produce a cleaner steel. Desulphurisation Unit : This has been installed to reduce hot metal sulphur for better steel-making A conscious corporate citizen, BSP has accorded the highest priority to taking effective measures in the areas of resource conservation, pollution prevention, waste reduction and conversion of waste to wealth. Effective monitoring and analysis has ensured that BSPs compliance is well within the regulatory requirements. ISO 14001 certification hasbeen implemented in the entire Plant & township as well as in Dalli Mines. The plant has introduced environment friendly coal dust injection system in the Blast Furnaces, de-dusting system and electrostatic precipitators in other units. Besides, Clean Development Mechanisms for green house gas reduction, BSP has taken up the replacement of Ozone Depleting Substance CTC, aided by UNDP.

The specific water consumption in BSP at 3.04 cu.m per tonne of crude steel in 2007-08 is one of the lowest in the country. For the first time, BSP has earned Voluntary Emission Reduction (VER), a kind of carbon credit for two of its environment-friendly projects inside the Plant. The projects, namely 'SP-3 waste heat recovery system' & 'Thyristerisation of last Furnace # 3 & 4 skip hoist electric supply' have been certified under VER by M/s. RINA, Italy. This will enable BSP to claim revenues for 9,74,743 Tonnes of Co2 Emission reductions till 2007-08, from the international VER market. These projects will also earn revenues on an average of 1,65,000 T of Co2 reductions every year till the completion of 10 year accounting period in each case. Abiding by Corporate Responsibility for Environment Protection (CREP) guidelines & monitoring mechanism, Bhilai has also taken adequate steps to check fugitive emissions from Coke Ovens. It has installed Air cooled self sealing doors in Battery-3, resulting in significant reduction in door emissions.

At Battery #7, water sealed AP caps and Pusher car with door cleaning mechanism has been introduced. Contrary to the popular perception about industrial townships being dirty and polluted, a green canopy covers the township. A green-fingered population and a management aware of its obligations as a corporate citizen have come together for a massive tree-plantation drive over a period of years as a result of which afforestation sites and green expanses enrich the environment in mining and peripheral areas. There are five big gardens inside the plant and 15 gardens in the township. The cumulative plantation in the Works area and township is more than 30 lakhs while in the Mines, it is more than 22 lakhs. Spread over 167 acres, the sprawling Maitri Bagh that has the biggest musical fountain in the country, a zoo with 28 species of animals and birds, an artificial lake with boating facilities, a toy train etc., attracts over 5 lakh visitors every year. The residential sectors of the steel city are kept clean and green by the Plant's Town Administration Department which also undertakes the civic amenities such as street lighting, cleaning and maintenance of the tree-lined carpeted roads.

The water to the township is supplied from the Maroda water treatment plant having a capacity of over 30 million gallons per day. Water is distributed throughout the township through a system of underground reservoirs and overhead tanks. ISO 9001 SEAL OF QUALITY All major production units and marketable products in Bhilai Steel Plant are covered under ISO 9001:2000 Quality Management System. This includes manufacture of blast furnace coke and coal chemicals, production of hot metal and pig iron, steel making through twin hearth and basic oxygen processes, manufacture of steel slabs and blooms by continuous casting, and production of hot rolled steel blooms, billets and rails, structurals, plates, steel sections and wire rods. Bhilai's products come with a complete assurance of quality. This is achieved as a result of unrelenting attention and meticulous procedures at every stage of the process and upgrading of testing methods and equipment. Right from selection of input material for steelmaking, the process parameters are kept under close control.