Productivity Improvement in Screw Type Biomass Briquettes Manufactoring by Planning Downtime

Productivity Improvement in Screw Type Biomass Briquettes Manufactoring by Planning Downtime

Length: 646 words (1.8 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

The sectional details of the parts are shown in fig 3 in which the machine shaft is supported by radial and thrust bearings. Radial bearings support the dead load on the shaft, while thrust bearings support the axial load due to compression of saw dust by screw. One end of the shaft is connected to the gear drive. In the other end of the shaft screw is inserted. Starting section of screw placed inside barrel conveys the material into the mould. Mould is made in two sections, first in which the cross section gradually reduced to the final shape of briquette (called forming mould or wear sleeve) and the later with uniform cross section of the final briquette which exerts necessary back pressure for compression due to friction. Saw dust is chosen as the raw material for its suitability to produce high calorific value briquettes[17] and its local availability. The entire saw dust used during this experiment is collected from a single source in single lot. The saw dust is sieved to -5mm, dried to less than 8% moisture in a hot air-current drier and the drier output about 80oC to 90oC is fed directly to the briquetting machine. Only the briquettes of minimum acceptable quality were considered as output. The mould needs to be maintained at a temperature about 250oC for the lignin content in the biomass to melt and act as a binder. For both screw and mould spares were kept ready for replacement. For the first set of data the screw coated by Eutechtrode 700 from L&T was used and it was allowed to run till it breaks down. The mould was also hardened by coating with Eutectrode 700. As an average it took about 45 minutes to remove the screw, cool the system, clean the system from debris of raw material, put the new screw and reh...


... middle of paper ...


...Mathematical and Computer Modelling, Volume 12, Issue 9, 1989, Page 1176.
[15] R. C. Vergin, Scheduling Maintenance and Determining Crew Size for Stochastically Failing Equipment, Volume 13 Issue 2, October 1966.
[16] M. Ozkok∗, The effects of machine breakdown on hull structure production process, Scientia Iranica E (2013) 20 (3), 900–908.
[17] Mariusz J. Stolarski, Stefan Szczukowski, Józef Tworkowski, Michał Krzyżaniak, Paweł Gulczyński, Mirosław Mleczek, Comparison of quality and production cost of briquettes made from agricultural and forest origin biomass, Renewable Energy, Volume 57, September 2013, Pages 20-26.
[18] Anbumalar V, Nagarajan M S and Balasubramani P, Productivity improvement in screw type biomass briquetting machine by improving mould life, article in press, Journal of Manufacturing Engineering, December, 2013, Vol. 8, Issue. 4, pp 244-248.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Productivity Improvement in Screw Type Biomas Briquettes Manufacturing by Planning Downtime

- ... The heating process is needed to eliminate moisture and volatile matters and to melt the lignin content in the raw material which acts like a binder. The quality of briquettes produced justifies the use of skilled labor. Due to high wear rate of screw and mould particularly the screw which have very short life about 4 to 15 hrs [10] there are regular stoppages of production, reconstruction of tools and wastage of output.Research works are going on all over the world in designing compact briquetting machines, producing smaller diameter (35mm) briquettes [11] to make it suitable for gasification, improving the life of screw, using waste briquettes to heat the raw material and mould and to...   [tags: power, applications, densification]

Better Essays
732 words (2.1 pages)

Essay about Productivity Improvement in Srew Type Biomass Briquetting

- In spite of very good potential for using biomass as a renewable source of energy the practice is in very early stage and limping. There are many factors which contribute their parts in making the process unsuccessful. The major ones are seasonality of the raw materials, shortfalls in logistics, absence of proved manufacturing systems, lack of skilled workers and very many technical factors. Considering technical factors for the screw type of briquetting the biomass, the life of the screw and the mould contribute the highest percentage of hindrance to the production process and hence the highest chance of improving the total productivity....   [tags: sustainable energy, cultivation, India, charcoal]

Better Essays
1367 words (3.9 pages)

Alternative Energy Resource: Biomass Essay

- Biomass is a biological material derived from living, or recently living organisms. In the context of biomass for energy this is often used to mean plant based materials, but biomass can equally apply to both animal and vegetable derived material. Biomass is considered to be one of the key renewable resources of the future at both small and large scale levels. It already supplies fourteen percent of the world’s primary energy consumption. Growing Biomass is a rural, labor-intensive activity, and can, therefore, create jobs in rural areas and help stem rural to urban migration....   [tags: biomass, renewable resource, organic]

Better Essays
634 words (1.8 pages)

Steps Involved in Conversion of Biomass Into Ethanol Essay

- ... A number of milling processes (ball milling, two-roll milling, hammer milling, colloid milling and vibro energy milling) can be used to enhance the enzymatic hydrolysis of lignocelullosic materials (Taherzadehand Karimi, 2008). The power necessity of this pretreatment is comparitively high. Considering, the high-energy requirements and the soaring energy prices, this process is not economically feasible (Hendriksand Zeeman, 2009). Extrusion Extrusion process is aninnovative and assuring technique for ethanol production....   [tags: lignocellulosic biomass, pretreatment]

Free Essays
1330 words (3.8 pages)

Categorization of Biomass Material, Pollution Forming mechanism and Health Impacts in Developing Countries.

- Introduction Biomass energy is important renewable source of energy that is derived from either living or organisms that were in existence recently. This energy source is used in dual purposes; to be used directly with the process of combustion to produce heat or through indirect means after its conversion into different forms of biofuels. The focus of our project would be usage of Biomass energy through mainly combustion process in the developing world. In this region biomass is the primary source of domestic energy supplying approximately over 70% of the energy consumed (Ndiema, Mpendazoe and Williams, 1997)....   [tags: Biomass Energy, Renewable Source of Energy]

Better Essays
2493 words (7.1 pages)

Decline in Comprehensive Urban Planning Essay example

- The decline in comprehensive urban planning was one of the major assets in determining the capitalist view facing social resistance. This made it difficult for planners considering the number of critiques that persistently argued about the impact of planning. This is because cities have changed; there was no way to hold a consistent plan. The conflict between the central controls needed to perform comprehensive urban planning versus the capitalism in which individual property holders say about of how things are done because of their interests in their property....   [tags: Urban Planning]

Better Essays
1494 words (4.3 pages)

Opportunities for Biomass Production in Cambodia Essay

- Located in Southeast Asia, Cambodia covers an area of 181 035 square kilometers, with a population of over 14 million (July 2008) of which about 85-90 percent lives in the rural areas (Ministry of Rural Development 2006, Central Intelligence Agency 2008). More than 80 % of energy derives from biomass (De Lopez, 2003). Fuel wood is the major source of energy for rural population and tile brick industries. According to De lopez, natural forests are the main source of fuel wood in Cambodia that lead to severely degradation of forest for the past twenty years....   [tags: environment, alternative fuel, energy]

Better Essays
653 words (1.9 pages)

Essay about The Value Of Strategic Planning

- Analyzing the value of strategic planning related to IT “You’ve got to be very careful if you don’t know where you are going, because you might not get there.” by Yogi Berra. Similarly, firms have to formulate plans that help them achieve the desired outcomes and objectives by making sure they utilize their existing resources carefully. This process or plan is nothing but strategic planning. Major issues why IT isn’t a part of business strategic planning is because (a) value of IT is not understood by majority of executives (b) opportunities to use information technology are not recognized and applied because more importance is given to meet business goals and objectives and (c) The pace at...   [tags: Strategic management, Strategic planning]

Better Essays
702 words (2 pages)

IT and Productivity Essay

- PRO- As we have discussed in the previous sections that information technology is making its mark into a number of field. We can see the impact of information technology in many fields. We will now see how information technology has been effective in a number of sectors and how each sector has benefitted from IT. 1. Financial Sector Financial sector has evolved rapidly over a period of time and its one of the areas of economy that has benefitted the most from Information Technology. Consider 40-50 years back all the records has been kept in the thick ledger books....   [tags: financial sector, agriculture sector]

Better Essays
1207 words (3.4 pages)

Essay on The Planning Function of Management

- The Planning Function of Management Management Planning The planning function of management provides goals, strategies, direction, and it defines responsibilities in any organization. The types of plans include strategic, operational, tactical, and contingency. Each one of these types allows an organization to have multiple plans to play different roles to achieve an overall common goal. According to Fortune 500, “Entergy has been in their top rankings for the past several years. Entergy constantly exceeds the 10 billion dollar mark in annual revenues.” (Cable News Network, 2008)....   [tags: Business Management Planning]

Free Essays
970 words (2.8 pages)