iosr-JMCE   Volume-15 ~ Issue-5 ~ Sep-Oct 2018

Abstract: The manufacture of carbon brush (CB), a critical motor and generator component has been in existence for over a century in which various materials like: copper metal, graphite, retort coke, petroleum coke and other amorphous carbon have been used in the production of CB. Most carbonaceous materials are good sources of amorphous carbon of which Palm Kernel Shell (PKS) is a typical example. This study is aimed at developing a formulation for the manufacture of CB using PKS as a source of carbon and characterization pf its resistivity property. Core components of CB were identified from the literature. Pilot study was conducted to identify material types and mix in CB using particle accelerator model 5SDH. Carbon being the major constituent was extracted from Palm Kernel Shell (PKS), coconut shell and coconut husk through.

Keywords -Resistivity, Graphtisation, Carbon brush, Taguchi Experimental Design

[1] Antony, J. 2001. Simultaneous optimization of multiple quality characteristics in manufacturing processes using Taguchi's quality loss function. International Journal of Advance Manufacturing Technology. 17,134–138
[2] Hugh, O. P.1993.Handbook of Carbon, Graphite, Diamond and Fullerenes. Noyes publications, New Jersey
[3] Jeff.D. K. 1993.Carbon brushes for elevators: composition functionsolutions[Online] www.helwigcarbon.com[Accessed 3 Feb 2009]
[4] MORSEN.2006.5-carbon brush – technical guide [Online].MERSEN, https://www.mersen.com/uploads/tx_mersen/5-carbon-brush-technical-guide-mersen_06.pdf [Accessed 2 May 2013]
[5] Nahar, S.,Rashmi, S. N., and Gupta, P.K. 2008. Analysis of major, minor constituents and various phases in carbon brushes by classical gravimetry, titremetry and by instrumentation method[Online]. www.sciencedirect.com.

Abstract: Analyze the variation curves of temperature and pressure in the storage tank during the static lossless storage of LNG vehicle . Calculate the daily heat leakage and the static evaporation rate of the storage tank are calculated. Based on lumped parameter method, the static process of the tank is modeled and calculated by using the simulation software Sinda/Fluint, and the variation of pressure in the tank under different initial filling rates is studied. The results show that the smaller the initial filling rate is, the faster the pressure in the tank rises and the shorter the safe storage time is.

Keywords Liquefied natural gas; static storage; dynamic simulation; Sinda / Fluint.

[1] Zhou Man, Li Yanzhong, Tan Hongbo. Theory and experiment of evaporation rate of vehicular LNG tank [J] cryogenic engineering,2009(4): 1-5.
[2] Li Zhaoei, Xu Lie, Sun Heng. Investigation on performance of non-less storage for cryogenic liquefied gas[J].Cryogenics,2004(44): 357-362.
[3] Li Juan, Wang Rongshun, Yu Yahua. Study on the influence of low temperature adiabatic cylinder pressure on daily evaporation rate [J]. Low temperature and special gas,2005，23(6):8-12.
[4] Bergman T L, Incropera F P, Lavine A S. Fundamentals of heat and mass transfer [M]. John Wiley & Sons, 2011.
[5] Xie Gaofeng, Wang Rongshun. Experiment on evaporation rate of cryogenic vessel and analysis of influencing factors [C]. Proceedings of the eighth National Conference on low temperature Engineering and China Aerospace cryogenic Information Network 2007 Annual academic Symposium, Beijing：2007:30-33.

Abstract: The impact of good quality facilities in sustainable housing development cannot be overemphasised. Hence, there is need for proper provision and effective maintenance by qualified professionals. The main purpose of this research is to assess the effects of the quality of the supporting facilities (households' water connection and liquid waste disposal) on the residential buildings of the study area. The study was conducted using the existing literature and empirical survey. The study area comprised 199 twin-blocks, each contained 12 flats. These accounted for 2,388 apartments of 3-bed room type. Systematic random sampling was used to select 101 from the total number of the available blocks, on which inspection and questionnaire surveys were conducted. In each of the sampled blocks, an adult household member was sampled using convenience sampling method for questionnaire survey. Hence, 101 blocks were successfully inspected to assess the quality effect of facilities on the buildings and the residents, while, 101 questionnaires were successfully administered on the sampled respondents to solicit for their perception on the subject under investigation. The study found that the quality of the study facilities have effects on the residential..........

Keywords -facilities, housing, low-income, residential building, sustainability, quality.

[1] Nor, H. I, Afaq, H. C, Ramly, A. (2007): Implications of design deficiency on building maintenance of post occupational stage. https://link.springer.com>article.palgr....... Accessed on August 1st, 2018.
[2] Abosede, F.B. (2006): Housing in Lagos mega city: improving liveability, inclusion and governance. Paper presented at the International Conference on Building Nigeria's Capacity to Implement Economic, Social and Cultural Rights: Lessons Learned, Challenges and the Way Forward‟. Abuja. 27-28 September.
[3] Babalola, D. O. (2016): Assessment of housing quality of selected residential estates in Lagos State, Nigeria PhD Thesis in Architecture, School of Postgraduate Studies, Covenant University, Ota, Ogun State, Nigeria
[4] Bullion English dictionary. (2007): Meaning of public housing. Harper Collins. Cited in Babalola (2016)
[5] Waziri, B.S and Vanduhe, B.A. (2013): Evaluation of factors affecting residential building maintenance in Nigeria: Users' Perspective. Civil and Environmental Research 3 (8) www.iiste.org..

Abstract: When a structure is subjected to Earthquake, The seismic forces drives the structure into motion. Due to this action a significant amount of energy is induced to the structures. The means by which this energy is dissipated decides the damage level of the structures.Sometimes the structures are designed ductile so that energy is dissipated by the system's elements by bending, twisting or degradation. If the amount of energy induced in the structure can be controlled or, if part of it can be dissipated mechanically by independent structures, the seismic response of the buildings is improved and the potential damage is greatly reduced.In this paper various models with dampers has been studied and their response has been shown.

[1] IS 1893:1984,"Criteria for earthquake resistant design of structures", Bureau of Indian Standards, New Delhi, India.
[2] IS 456: 2000,"Plain reinforced concrete-code of practice", Bureau of Indian Standards, New Delhi, India.
[3] Hyun-Su Kim, Young-Jinn, Kim, "Control Performance Evaluation of Shared Tuned Mass Damper", Advanced Science and Technology Letters, Vol.69 (Architecture and Civil Engineering 2014), pp.1-4
[4] Ashish Badave, Vijay Singh Deshmukh, and Sudhir Kulkarni, "An Overview of Design, Behaviour and Applications of Tuned Mass Vibration Absorber", Journal of Basic and Applied Engineering Research,Volume 1, Number 3; October, 2014 pp. 14-18.
[5] Bandivadekar T.P, Jangid R.S, "Mass Distribution of multiple tuned mass dampers for vibration control of structures", International Journal of civil and structural engineering, Vol.3,No.1,2012,pp. 70-84.

Abstract: This paper presents the application of shear deformation theory for pure bending analysis of CCCS and SSFS rectangular isotropic using polynomial shape function. The theory herein accounts for shear deformation and no shear correction factor is required.The principle elasticity is adopted for the formation of the total potential energy equation of a thick plate. The governing equations for determination of displacement coefficients were derived by subjecting the total potential energy equation to direct variation. Numerical studies of all edges simply supported and three edges simply supported with a single free of support thick plate was carried out. The results obtained herein for in plane and transverse displacements and stresses were compared with previous works and observed that they..........

Keywords: shear deformation, shear correction factor, vertical shear stress, deflection, displacement, potential energy

[1]. Ambartsumian, S. A (1958), On the theory of bending plates, Izvotd Tech Nauk an Sssr, 5, pp 69–77
[2]. Avalos, D. R and Larrondo, H. (1995) Transverse vibrations and buckling of circular plates of discontinuously vary thickness subject to and in-plane state of hydrostatic stress. Ocean Engineering, Vol. 22, No. 1, pp. 105-110.
[3]. Azhari, M. and Kassaei, K. H. (2004) Local buckling analysis of thick plate anistropic plates using complex finite strip method, Iranian Journal of Science and Technology, Transaction B, Vol 28, No. B1
[4]. 4.Chikalthankar, S. B, Sayyad, I. I, .Nandedkar, V. M (2013).Analysis of Orthotropic Plate By Refined Plate Theory. International Journal of Engineering and Advanced Technology (IJEAT) ISSN: 2249 – 8958, Volume-2, Issue-6, pp. 310-315
[5]. Daouadji, T. H, TounsiAand.Bedia, El. A. A (2013).A New Higher Order Shear Deformation Model for Static Behavior of Functionally Graded Plates.Advances in Applied Mathematics and Mechanics Adv. Appl. Math. Mech., Vol. 5, No. 3, pp. 351-364

Abstract: Steel structures play a major role in structural components but one of the major problem faced by steel components is corrosion. Corrosion has increasingly become a structural problem world over which effectively reduces the weight and thickness of the components which finally reduces the strength of the steel structural components. In the present work cold formed steel members which are gaining more recognition compared to hot rolled steel as they are available in different thicknesses were used. Corrosion coupons, corroded and uncorroded tension coupons, of two different thicknesses 1.6mm and 3mm were used. The corrosion coupons are used to predict the rate of corrosion in a year. whereas in tension coupons the gauge portions were corroded for different percentages such as 15%, 30% and 45% and strength of corroded and uncorroded coupons were evaluated.

Keywords: Corrosion, steel components, Tension coupons, coupons

[1]. Kariya .A, Tagaya.K, Kaita.T, and Fujii.K.(2003), "Basic study on effective thickness of corroded steel plate and material property", In Proceedings of the annual Conference of JSCE, pages 967 - 968.
[2]. Heusler. K.E.(1990), "Present state and future problems of corrosion science and Engineering", Corrosion Science, Volume 31,Pages 753-761.
[3]. Nesic.S, Postlethwaite.J, Olsen.S.(1994), "An Electrochemical model for prediction of Corrosion of Mild Steel in Aqueous Carbon
dioxide Solution", Corrosion Science, Volume 52(4), pages 280-294.
[4]. Application Note Basics of Electrochemical Impedence Spectroscopy. Rev.1.09/3/2010 Copyright 1990-2009 Gamry Instruments, Inc.
[5]. Getting Started with Electrochemical Corrosion Measurement. Rev. 1.1 1/3/2011 Copyright 1990-2010 Gamry Instruments, Inc.

Abstract: In this research, we studied the swirling effect on a single ring gas domestic burner were the testing was performed on3 patterns of flow orientation: Swirl flow and Star pattern swirl and the radialflow as a Benchmarking burner.The influence of the pan height to the flame frontand Reynolds number has been introduced as the changing conditions. To study the improvement of future domestic gas burners by increasing thethermal efficiency as well as decreasing CO emissions, LPG was used as the testing gas for the examination of these burners. The results indicated that, usingthe swirl motion improved the thermal efficiency and CO emissions, but for the Star pattern burner the CO emissions improved evidently.Increasing the pot heightfrom the burnerfront flame decreased the thermal efficiency and CO emissions under all operating conditions due to lower pigmentation of the flame to.........

Keywords: Swirl burners; Domestic burner; Thermal efficiency, Combustion Emissions, Star Pattern.

[1]. Bromly JH, Barnes FJ, Johnston RCR, Little LH. Effect of vitiation on trace pollutants from domestic gas appliances. J Inst Energy 1985; 58:188–96.
[2]. Bromly JH, Barnes FJ, Johnston RCR, Little LH. Indoor pollution from gas appliances. Clean Air 1986; 2(2):39–45.
[3]. Traynor GW, Apte MG, Carruthers AR, Dillworth F, Grimsrud DT, Thompson WT. Indoor air pollution and inter-room pollutant transport due to unvented kerosene-fired space heaters. Environ Int. 1987; 13(2):159–66.
[4]. Moschandreas DJ, Relwani SM, Billick IH, Macriss RA. Emission rates from range-top burners-assessment of measurement methods. J Non-Newton Fluid Mech 1987; 22(3): 285–9.
[5]. Barnes FJ, Bromly JH, Edwards TJ, Mandyczewsky R. NO emissions from radiant gas burners. J Inst Energy 1988; 61:184–8..

Abstract: Recently in Kenya, there is massive investment in exploration of geothermal energy which is the key source of power to the national grid. However, despite considerable investment in geothermal power sources, in Kenya and many developing countries, few studies address the asset management (maintenance) aspects of existing facilities. Therefore the objective of this paper is to perform risk assessment of critical equipment failure modes in the power plant by using RPN and FMEA techniques. These techniques were considered for determining, classifying and analyzing common failures in the power plant. The first step involved failure data collection, structuring and analysing.........

Keywords: Risk assessment, RPN, FMEA, critical sub systems, failure cost

[1]. Hamid R. Feili, Navid A, Sina N, Risk analysis of geothermal power plants using Failure Modes and Effects Analysis (FMEA) technique. Energy Conversion and Management journal homepage: www.elsevier.com/locate/enconman, 2013.
[2]. Mburu Martha, Feasibility Study on Direct Utilization of Energy from Geothermal Brine – A Case Study of Olkaria Geothermal Power Plant, Kenya. Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010.
[3]. Ouma A. Peter. Geothermal exploration and development of the Olkaria geothermal field. Paper Presented at Short Course III on Exploration for Geothermal Resources, organized by UNU-GTP and KenGen, at Lake Naivasha, Kenya, October 24 - November 17, 2008.
[4]. Ashraf W. Labib, A decision analysis model for maintenance policy selection using a CMMS. Journal of Quality in Maintenance Engineering Volume 10 · Number 3 · 2004 · pp. 191–202.
[5]. Sahoo. T., P.K.Sarkar, A.K.Sarkar. Maintenance Optimization for Critical Equipment in process industries based on FMECA Method, 2014...