iosr-JMCE   Volume-18 ~ Issue-6 ~ Nov. – Dec. 2021

Abstract: Background : The large amount of space taken on landfills by waste, the constant release of environmental polluting gases like CO₂ into the atmosphere and the high cost involved in cement production has led to the search for alternative binding materials that are cheap, ecofriendly and will help contribute to waste management. This research presents the findings of an experiment, set out to evaluate the performance of calcium carbide residues (CCR) and wood ash (WA) as partial replacements of cement in concrete. Materials and Methods: Mix ratios 1:2:4 and 1:3:6 was used to cast concrete cylinders of sizes 100mm x 200mm and concrete cubes of dimension 150 mm x 150 mm x 150 mm. The percentage replacement of cement with CCR/WA were 0%, 5% 10%, 15% and 20% (by weight of cement) respectively........

Key words: Calcium Carbide Residue; Wood ash; Supplementary Cementitious Materials; Pozzolanic reaction; CO2 emission.

[1]. Habert G. Assessing the environmental impact of conventional and 'green' cement production. In: Eco-Efficient Construction and Building Materials. Elsevier; 2014:199-238. doi:10.1533/9780857097729.2.199.
[2]. Hendriks CA, Worrell E, De Jager D, Blok K, Riemer P. Emission Reduction of Greenhouse Gases from the Cement Industry. In: Greenhouse Gas Control Technologies Conference Paper. ; 2004:1-11.
[3]. Sun H, Li Z, Bai J, et al. Properties of Chemically Combusted Calcium Carbide Residue and Its Influence on Cement Properties. Materials. 2015;8(2):638-651. doi:10.3390/ma8020638.
[4]. Aderinola OS, Omolola OE, Quadri AI. Effect of Calcium Carbide Waste Powder on Some Engineering Properties of Bamboo Leaf Ash Concrete. OALib. 2018;05(11):1-15. doi:10.4236/oalib.1104990.
[5]. Gora AM, Ogork EN, Haruna SI. Effect of Calcium Carbide Wastes as Admixture in Mortar. Scholars Journal of Engineering and Technology (SJET). 2017;5(11):655-660.

Abstract: Material management plays an important role in construction project management as it derives a major part of the cost and time of the project. Nowadays, ERP systems are rampantly used for various functions in Construction project management. The study aims to assess the efficacy and potency of ERP systems implementation for material management and analysis of cost versus benefit for the same. In this cross-sectional observational study, the researcher has derived data from six construction firms out of which three firms are not using ERP systems (Company A, B, and C) and three companies are using ERP systems (Company D, E, and F). data was collected from interviews of project managers and senior purchase executives. Collected data was verified with site engineers.......

Keywords: ERP systems, construction Material management, Time management, Cost management.

[1]. Ahmed, S. M., Ahmad, I., Azhar, S., & Mallikarjuna, S. (2003). Implementation of Enterprise Resource Planning (ERP) Systems in the Construction Industry. Construction Research Congress, 1–8. https://doi.org/10.1061/40671(2003)125[2]. Arnold, P., & Javernick-Will, A. (2013). Projectwide Access: Key to Effective Implementation of Construction Project Management Software Systems. Journal of Construction Engineering and Management, 139(5), 510–518. https://doi.org/10.1061/(ASCE)CO.1943-7862.0000596
[3]. Chaudhari, R., & Jain, R. (2019, June). IRJET-_Implementation_Based_ERP_Module_f.pdf.
[4]. Çınar, E., & Ozorhon, B. (2018). Enterprise resource planning implementation in construction: Challenges and key enablers. Journal of Construction Engineering, Management & Innovation, 1(2), 75–84. https://doi.org/10.31462/jcemi.2018.01075084
[5]. Pagar, S. J., Devalkar, R. V., & Aher, M. C. (2015). To Study The Effective Material Management On Small Construction Projects. 2(7), 6.

Abstract: Due to the worldwide energy crisis and rising global emissions, renewable energy research and development, particularly wind and solar, has exploded in recent years [1]. Wind turbines with a horizontal axis are not appropriate for home usage. As a result, the Savonius vertical axis wind turbine may be a safer choice due to its ability to operate in low wind circumstances [2]. The goal of this model is to point out how well it performs in various wind conditions compared to a traditional horizontal axis wind turbine, and to contribute to its steady rise in popularity as a reliable source of energy in the near future [3].

Keywords: Vertical Axis Wind Turbine, Savonius Wind Turbine, CFD, Aerodynamic Performance, Dimples and Fins.

[1]. Livya. E et. al. "Aerodynamic analysis of dimple effect over aircraft wing", International journal of mechanical aerospace industrial and mechatronics engineering, Volume 9(2015).
[2]. Deepak Kr. Sharma et. al. "Design and Analysis of Savonius Vertical Axis Wind Turbine", International Journal of Innovations in Engineering and Science, Vol. 3, No.5, 2018 www.ijies.net.
[3]. Shafiqur Rehman et al., Horizontal Axis Wind Turbine Blade Design Methodologies for Efficiency Enhancement - A Review", Energies 2018, 11, 506; doi:10.3390/en11030506.
[4]. Livya. E et. al. "Aerodynamic analysis of dimple effect over aircraft wing", International journal of mechanical aerospace industrial and mechatronics engineering, Volume 9(2015).
[5]. K. S. Jeon, J. I. Jeong, J.-K. Pan, and K.-W. Ryu, "Effects of end plates with various shapes and sizes on helical Savonius wind turbines," Renew. Energy, vol. 79, pp. 167–176, 2015.

Abstract: Background: As freshwater availability is running low due to pollution and climate change issues; consumption is likewise increasing due to population growth and the cumulative effect is causing depletion of available fresh water from natural sources. A potential approach for producing water to cater for the masses is extraction of water from atmospheric air through reclamation of condensate from air conditioning systems. This study investigated the quality and sufficiency of water generated from air conditioner condensate for non-potable uses in institutional buildings......

Keywords: Air conditioner, Condensate, Non-potable water uses, Discharge rate, Reclaimable quantity, Hot humid region

[1]. Noutcha M, Damiete O, Johnny M, et al. Quantity and Quality of Water Condensate from Air Conditioners and Its Potential Uses at the University of Port Harcourt, Nigeria. Advances in Applied Science Research. 2016;7(6):45-48,
[2]. Liu J, Dorjderem A, Fu J, Lei X, et al. Water Ethics and Water Resources Management. Ethics and Climate change in Asia and Pacific (ECCAP) Project, Working Group 14 Report, UNESCO Bangkok, 2011.
[3]. Davie, T. Fundamentals of Hydrology, 2nd Edition, Routledge, Taylor and Francis Group. London, 2002.
[4]. Mahvi, AH, Alipour, V, & Rezaei L. Atmospheric moisture condensation to water recovery by home air conditioners". American Journal of Applied Sciences.2013;10(8):917–923.
[5]. Ramakrishnaiah C, Sadashivaiah C. and Ranganna G. Assessment of Water Quality Index for the Groundwater in Tumkur Taluk, Karnataka State, India. E-Journal of Chemistry. 2009;6(2):523-530.

Abstract: Experimental investigations were carried out to determine the effect of permanent and squeeze cast moulds on the Tensile and Hardness of AA6063 Aluminum rods. Permanent and squeeze cast moulds were fabricated and used to produce Aluminum rods. The test samples from cast rods were subjected to Tensile and Hardness tests. The results obtained showed better Tensile and Hardness properties in the squeeze cast samples that were produced under varied pressure. The hardness of squeeze casting varied from 72.9 to 82.3Hv, while that of permanent casting had 66.5Hv. Also, Ultimate Tensile Strength increased with increased pressure in squeeze castings from 178.01 to 194.04MPa and 108.78MPa in permanent castings. Conversely, the Tensile and Hardness properties of the cast......

Key words - Aluminium Cast Rod, Hardness Characteristics, Permanent Mould, Squeeze Cast Mould, Tensile Characteristics

[1]. Khama, O.P. (1997) "A textbook of Foundry Technology (for Engineering Students)", Ish Kapur, for Dhanpat Rai Publictions (P) Ltd., New Delhi - 110002.
[2]. Budinski, K.G. (1983), "Engineering Material Properties and Selection",Reston Publishing Company Inc., New York.
[3]. Norton, R.L. (1998), "Machine Design – An Integrated Approach" ,Prentice Hall Inc., New Jersey.
[4]. Oke, A.O (2005) "Influence of Processing Operations on Mechanical Properties of Aluminium Alloy , Nigerian Journal of Mechanical Engineering 3 (1) pp 46-52.
[5]. Callister, William D. (2010), "Mathematical Science and Engineering: An Introduction" Willey John Willey & Sons, Inc., New York.

Abstract: Renewable energy can be used to decrease global dependence on natural resources, and power can be the primary form of renewable power utilized. Two case studies, Annapolis Royal and La Rance, prove that swing power plants are capable of producing reliable and efficient power. Problems, such as initial cost and power transportation hinder future implementation of power plants. This project emphasizes the possibilities of utilizing the power by pollution free, Power generation. .This project reciprocating motion converted into rotary motion using rack and pinion mechanisms.In our project, a new method is proposed for harnessing of human power based on children's play in playgrounds and public places, on devices such as the swing. When large numbers of children play in a playground,......

[1]. Rajat, Sonu and S.K.Mude, Electrical Energy Generation by using Pendulum Motion, International Journal of Advance Research, Ideas and Innovations in Technology, 8 (262), 2012, 300-392.
[2]. Manjunath K and Suresh P, Swing Electricity Generation System, International journal of specific progress and research, 444 (462), 2015, 385-450. [3] Shastri and Bharath, The Power of Swing, Internationa l journal published under the patent corporation treaty, 4645(292), 2009, 1-24.
[3]. Gokul and Cyril John Tellis, Design and Fabrication of Human Power Swing for Electricity Generation, Recent Innovation in Science and Engineering, 3(92), 2016, 624-710.
[4]. S. Pandian, A Human Power Conversion System Based on Children's Play, Technology and Society of journal ISTAS, 66 (566), 2004, 50-122.
[5]. Rajesh Kannan Megalingam, Pranav Sreedharan Veliyara, Raghavendra Murali Prabhu, Rocky Katoch, "Pedal Power Generation" , International Journal of Applied Engineering Research, ISSN 0973-4562 Vol.7 No.11 (2012)..

Abstract: Lake Tempe is one of the lakes in Wajo Regency which has great potential. The diversity of the Tempe Lake area for tourism can attract tourists. Many tourism activities depend on transportation. Transportation is one of the main sectors in supporting the development of the Lake Tempe tourist area, South Sulawesi. Tempe lake tourism object does not yet have good facilities and infrastructure. Facilities and infrastructure that do not support this tourism will reduce the attractiveness of tourists to visit. This type of research is non-experimental......

Keywords: Tourism, River-lake transportation, Development concept

[1]. Sukardi, Nyoman. 1998. Introduction to Tourism. STP Nusa Dua Bali.
[2]. Irianti, M. Yusuf K, Riska Aulia Sartika. 2016. Strategy for the Development of the Tempe Lake Area Based on 3e (Education, Environment and Entrepreneur) Towards Independent Tourism, University of Muhammadiyah Makassar
[3]. Ministry of Public Works and Public Housing. 2015. Decree of the Minister of Public Works and Public Housing Number 67/KPTS/M/2015 concerning Management of Water Resources in the Walanae-Cenranae River Basin, Jakarta
[4]. Ministry of Environment of the Republic of Indonesia (KLHK). (2014). Lake Rescue Movement (GERMADAN) Tempe
[5]. Yusuf , M. 2011. http://www.kondisi-umum-danau-tempe dapus.html. Yusuf, M. 2011. http://www.condition-umum-danau-tempe dapus.html.

Abstract: The effect of natural and artificial aging treatment on the hardness and mechanical properties of aluminum alloy A-356 was investigated. To measure the hardness, 20mmx30mmx10mm specimens were used and the ASTM E 8M standard was followed for the tensile tests. First, all the samples were solubilized at 540 ° C (12 h), and then they were subjected to three tempering means: Water (+ 80 ° C), Air (23 ° C) and Dry ice (-40 ° C). Then, for the natural aging T4, the holding times were used: 2; 4; 6; 8 and 10 h; and for the artificial aging T6, the specimens were reheated to 150 ° C and the same times were used. It was found; that the hardness for the T4 and T6 treatments are increased by increasing the holding time and the highest values are found when the samples are cooled in dry ice (-40 ° C). For treatment T4 the hardness varies between 80 HV-93 HV, and for treatment T6 the values are between 65 HV -100......

Key Word: Aluminum alloys; Precipitation; Aging, microstructural evolution, tensile property

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[5]. Wang, Y., Neff, D., Schwam, D. et al. Optimization of Permanent Mold Mechanical Property Test Bars in A356 Alloy Using a New Mold Design. Inter Metalcast 7, 25–38 (2013)..