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Development of copra dryer incorporated with convective steam turbine

Materials Today: Proceedings 2023年

作者： R. Suresh Kumar N. Jayanthi S.S.K. Deepak Jitendra Singh Yadav Omprakash Dewangan R. Pugazhenthi Naveen Agrawal Department of Mechanical Engineering R.M.K.Engineering College Kavaraipettai 601206 Tamil Nadu India Department of Physics R.M.K. College of Engineering and Technology Puduvoyal Chennai 601206 Tamil Nadu India Department of Mechanical Engineering Bhilai Institute of Technology Raipur 493661 Chhattisgarh India Department of Civil Engineering IES College of Technology Bhopal 462044 Madhya Pradesh India Department of CS & IT Kalinga University Naya Raipur 492101 Chhattisgarh India Department of Mechanical Engineering Vels Institute of Science Technology & Advanced Studies Chennai 600117 Tamil Nadu India Department of Mechanical Engineering Lakshmi Narain College of Technology Bhopal 462022 Madhya Pradesh India

A convective steam turbine-powered copra dryer is an interesting concept that could potentially provide an efficient and sustainable solution for drying copra, a product derived from coconut. The use of steam turbines to power the dryer can significantly reduce energy costs and increase productivity. The main purpose of this convective steam turbine-powered copra dryer is to reduce electricity consumption. The experiment aims to test the feasibility and efficiency of convective steam turbine-powered copra dryer. A prototype of the dryer was designed, and experiments were conducted to test its performance. The experiments focused on measuring the efficiency of the turbine, the drying time of the copra, and the quality of the dried copra. The testing facility simulated the actual conditions in which the dryer would operate, and all safety procedures were followed. The results of the experiment indicated that the convective steam turbine-powered copra dryer was an efficient and sustainable solution for drying copra. The use of steam turbines to power the dryer significantly reduced energy costs and increased productivity. The quality of the dried copra met the required standards, and the overall performance of the dryer was satisfactory. The experiment provided valuable insights into the feasibility and potential of using a convective steam turbine-powered copra dryer for commercial use.

关键词： Steam turbine Copra dryer Coconut shell Stainless steel Auminum alloy

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Study the evaluation of underactuated robotic gripper

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AIP Conference Proceedings 2021年第1期2395卷

作者： K. Ganesh Ajith Arul Daniel R. Pugazhenthi P. Balamurali 1Mai-Nefhi College of Engineering and Technology Eritrea 2Department of Mechanical Engineering Vels Institute of Science Technology & Advanced Studies Chennai India 3Department of Mechanical Engineering Chennai Institute of Technology Chennai - 600069 India

In this paper, a newly developed underactuated gripper robotic gripper is designed and fabricated and is tested and simulated by the optimal force. This kind of robot gripper can adapt the grasped object depending on shape and output grasping force. This model has created a linkage-based parallelogram mechanism to include kinematic and contact constraints. Geometric optimization of three phalanges underactuated fingers is presented based on a Finite Element analysis technique. Multi-objective optimization is used for evaluating finger parameters that were associated with link position, grasping equilibrium, and contact force. All optimal parameters of the mathematical models are obtained by using Ansys software. In order to test the optimum force of the finger, a wide range of contact positions was selected, and found exact position different grasping shapes. In this experiment, the grasping force is measured and compared with numerical results. The results obtained by both simulation and experiments exhibit a good correlation with the analytical results.

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Performance Analysis Flow and Heat Transfer Characteristics of Secondary Refrigerant Based SiO 2 Nanofluid

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Materials Today: Proceedings 2019年 18卷 4683-4689页

作者： K. Logesh S. Baskar R. Krithick Vignesh Mekala Jagadeesh Gantyada Anand Ratna Kumar S. Damodar Reddy Department of Mechanical Engineering Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology Avadi Chennai Tamil Nadu 600062 India Department of Automobile Engineering VELS Institute of Science Technology & Advanced Studies (VISTAS) Chennai Tamil Nadu India

Nanofluids have arisen as a technically and economically credible compounds due to their remarkable thermal conducting properties. Here, we report the stability and silicon dioxide/propanol nanofluid suspension stability and heat transfer abilities. The thermal conductivity of the silicon dioxide/propanol/CNT based nanofluid is studied at different temperatures and concentrations. The results indicate that there is a significant rise in thermal conductivity of silicon dioxide/propanol/CNT based nanofluid at 0.3 volume percentage of carbon nanotube

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Experimental Studies On Convective Heat Transfer Coefficient of Al 2 0 3 /Ethylene Glycol-Carbon Nano Tube Nanofluids

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Materials Today: Proceedings 2019年 18卷 4738-4744页

作者： K. Logesh Reetesh Tiwari R. Harish S. Ajay Netragaonkar adesh sunilrao Department of Mechanical Engineering Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology Avadi Chennai Tamil Nadu 600062 India Department of Automobile Engineering VELS Institute of Science Technology & Advanced Studies (VISTAS) Chennai Tamil Nadu India

Nanofluids are dispersions of nanoparticles in liquid and exhibit unique thermophysical characteristics unlike the traditional base liquids like water, glycols or oils. Several models have been established to elucidate the reason behind such improvement in heat transfer of nanofluids which includes interfacial thermal resistance, Brownian motion, and conduction due to partical aggregation. Here we report the synthesis and thermophysical property characterization of Aluminium Oxide mixed with ethelene glycol nanofluid with varying concentration of carbon nanotubes and temperatures. The significance of Al 2 O 3 nanofluids with EG/water as a base fluid in heat transfer applications is highlighted. The experimentally obtained information is in good agreement with the given data.

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Mobile phone application for identification of nutrients and microbial contamination in fruits and vegetables

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AIP Conference Proceedings 2023年第1期2916卷

作者： K. Sujatha G. Victo Sudha George S. Geetha B. Latha N. P. G. Bhavani N. Janaki T. R. Premila A. Wisemin Lins E. Kavitha A. Ganesan Department of Electrical and Electronics Engineering Dr.M.G.R. Educational and Research Institute Chennai-600095 Tamilnadu India Department of CSE Dr. M.G.R. Educational and Research Institute Chennai-600095 Tamilnadu India Department of Physics Dr.M.G.R. Educational and Research Institute Chennai-600095 Tamilnadu India Department of ECE Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Chennai. India Department of EEE Vels Institute of Science Technology and Advanced Studies Chennai Tamilnadu India Department of EEE RRASE College of Engineering Chennai Tamilnadu India

Objectives: In agricultural science, the quality identification of fruits and vegetables were categorized with differentiating colour, shape, dimension and texture. The proposed technique will enable to develop a smart phone application which uses intelligent image processing algorithms to scan the attributes of the fruit sex habited in a supermarket and assess its nutritional values like total carbohydrates including sugars like glucose, fructose, sucrose, potassium, magnesium and vitamins like vitamin A and vitamin C, antioxidants along with microbial contamination. This instant information received by the customers, once they capture the images of the fruits using the smart phone will kindle their interest to purchase the fruits based on their requirement. Another added feature of this smart phone App is that, it will enable the customers to identify the microbial contamination in fruits and vegetables. Method: This simple technology which is user friendly will facilitate the measurements related to the nutritional value which includes parameters like sugar content, carbohydrates, potassium and vitamins by embedding an intelligent image processing algorithm to process the various images of the fruits captured by the camera in the smart phone. This advanced technology of using smart phone App, extracts the color, shape, average intensity and Sum of Absolute Difference (SAD) for various fruits like Mango, banana, orange, papaya and tomato to classify them into three categories like High or Good Quality (HQ or GQ), Medium or Average Quality (MQ or AQ ) and Low or Poor Quality (LQ or PQ)with specific and accurate measurements of the total carbohydrates including sugars like glucose, fructose, sucrose, potassium, magnesium, antioxidants and vitamins like vitamin A and vitamin C, displayed on mobile phone screen, ***: Nowadays, mobile phones have become a part and parcel of our life style, that even a common man possessesone such device. So, this smart p

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Analysis of Cascade Vapour Refrigeration System with Various Refrigerants

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Materials Today: Proceedings 2019年 18卷 4659-4664页

作者： K. Logesh S. Baskar M. Azeemudeen B. Praveen Reddy Gajavalli Venkata Subba Sai Jayanth Department of Mechanical Engineering Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology Avadi Chennai Tamil Nadu 600062 India Department of Automobile Engineering VELS Institute of Science Technology & Advanced Studies (VISTAS) Chennai Tamil Nadu India

In this paper report the performance analysis of different refrigerants couples in cascade refrigeration system. Refrigerants such as R134a/R23, R410A/R23 and R404A/R170 have been successfully analyzed in the superheating and sub cooling range of 10 °C and 5 °C respectively. The variation in condenser temperature was from 30 to 50 °C in high temperature circuit while evaporator temperature in low temperature circuit varied in the range of -70°C to -50 °C. The compressor efficiency was assumed to be 0.7 throughout the experiment. It has been revealed that there is enhancement in coefficient of performance and flow rate with rise in compressor work and evaporator temperature. From the present study we conclude that the refrigerant pair R134a/R170 was found to have greater coefficient of performance and lower mass flow rate and the pair R404A/R508B was found to have smaller coefficient of performance and greater mass flow rate.

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Modelling and targeting mitochondrial protein tyrosine phosphatase 1: a computational approach

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In silico pharmacology 2022年第1期10卷 3页

作者： Venkataraghavan Ragunathan K Chithra C Shivanika Meenambiga Setti Sudharsan Nanomaterials and Environmental Research Laboratory Department of Chemical Engineering Alagappa College of Technology Anna University Chennai 600025 India. Department of Biotechnology School of Bio Sciences and Technology Vellore Institute of Technology Vellore Campus Vellore Tamil Nadu 632014 India. Department of Bioengineering School of Engineering Vels Institute of Science Technology and Advanced Studies Pallavaram Chennai 600117 India.

The present research scintillates on the homology modelling of rat mitochondrial protein tyrosine phosphatase 1 (PTPMT1) and targeting its activity using flavonoids through a computational docking approach. PTPMT1 is a dual-specificity phosphatase responsible for protein phosphorylation and plays a vital role in the metabolism of cardiolipin biosynthesis, insulin regulation, etc. The inhibition of PTPMT1 has also shown enhanced insulin levels. The three-dimensional structure of the protein is not yet known. The homology modelling was performed using SWISS-MODEL and Geno3D webservers to compare the efficiencies. The PROCHECK for protein modelled using SWISS-MODEL showed 91.6% of amino acids in the most favoured region, 0.7% residues in the disallowed region that was found to be significant compared to the model built using Geno3D. 210 common flavonoids were docked in the modelled protein using the AutoDock 4.2.6 along with a control drug alexidine dihydrochloride. Our results show promising candidates that bind protein tyrosine phosphatase 1, including, prunin (- 8.66 kcal/mol); oroxindin (- 8.56 kcal/mol); luteolin 7-rutinoside (- 8.47 kcal/mol); 3(2H)-isoflavenes (- 8.36 kcal/mol); nicotiflorin (- 8.29 kcal/mol), ranked top in the docking experiments. We predicted the pharmacokinetic and Lipinski properties of the top ten compounds with the lowest binding energies. To further validate the stability of the modelled protein and docked complexes molecular dynamics simulations were performed using Desmond, Schrodinger for 150 ns in conjunction with MM-GBSA. Thus, flavonoids could act as potential inhibitors of PTPMT1, and further, in-vitro and in-vivo studies are essential to complete the drug development process.

关键词： Docking Flavonoids Homology modelling Inhibitors Mitochondrial protein tyrosine phosphatase 1 (PTPMT1) Molecular dynamics simulations

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Comparison in surface roughness of Ti6Al4v using CBN & bondless tool with the operations of turning and grinding

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AIP Conference Proceedings 2020年第1期2283卷

作者： K. Eriki Ananda R. Pugazhenthi M. Chandrasekaran 1Department of Mechanical Engineering Vels Institute of Science Tech. & Advanced Studies Chennai India

Contrast and the machinability reaction of Ti6Al4V in turning and grinding activity and afterward observing the condition of the tool the test results utilizing two procedures. In this manner, during the machining of Ti alloys, tool wears quickly. In this paper, cutting tool wear checking, practiced through a methodology dependent on multiple layer neural networks. In correlation with different operations, utilizing bondless precious tools, the contact (tool and work) region temperature is very high, diamond tool will give good and fine finishing, to evaluate the tool wear with the operation of titanium in machine utilizing cBN tool and contrasting tool wear and assessed tool wear utilizing bondless diamond tool. Testing parameter was collected during machining of work. With different methods and parameters, the working method shows different variables are estimated. The working operation terms are speed, depth of cut, and. This operating procedure delivers the different variable it is flank wear, land width of the device and Ra of the job. Utilizing the data collected, training pattern and test designs are to be acquired.

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Gini Index Test Metric Based Collaborative Sensing of Spectrum for Cognitive Networks

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Journal of Physics: Conference Series 2021年第2期1964卷

作者： G T Bharathy V Rajendran S Bhavanisankari V Balaji Department of ECE Jerusalem College of Engineering Chennai Tamilnadu India Department of ECE Vels Institute of Science Technology & Advanced Studies Chennai Tamilnadu India Department of Mathematics Sacred Heart College Tirupatur Tamilnadu India

The key confront for a cognitive radio network is to identify the presence of primary users consistently so as to curtail the intrusion to license approved communications. Consequently, sensing of spectrum is a main significant requisite of a cognitive network. Nevertheless, because of the ambiguity in the channel, local interpretations don't provide a trustworthy solution and therefore collaboration is needed between the users. Collaborative spectrum sensing is a competent scheme to enhance the spectrum utility in wireless networks, which utilizes cooperation between multiple nodes to prevail over the inadequacy of single-node to improve the performance of detection. In this paper, a detailed investigation, simulation and comparative analysis of collaborative scheme for sensing the spectrum of cognitive networks based on Gini Index test metrics is done and the results are compared with various other detecting schemes. The simulation is accomplished by means of Matlab R2014 software.

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Synthesis, processing and finite element analysis of CNT based polymer composites

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AIP Conference Proceedings 2021年第1期2395卷

作者： Sanoop Sebastian VijayAnanth Suyamburajan Kumar R Ajith Arul Daniel 1Department of Mechanical Engineering Kmct College of Engineering Kozhikode India 3Department of Mechanical Engineering Vels Institute of Science Technology and Advanced Studies Chennai India 2Department of Mechanical Engineering Mai-Nefhi College of Engineering and Technology P.O.BOX I2676 Asmara Eritrea

One of the most reverting materials with atypical properties is Carbon Nanotube. The magnificent possessions of Carbon nanotubes have engrossed many in nano science and nanotechnology manifesto, though nanotubes are very favourable in a wide range of province. Its entreaty discrete nanotube for wide range has been bounded. To enhance its practical applications, piles of nanotube materials have lately allured attentions especially by evolution of polymer amalgamation. Finite Element Analysis (FEA) is the contemporary analysis hub for this method, which is used to examine the astounding properties of CNT, based polymer fusion. The present review focus on the methods of Finite Element Analysis (FEA) used to analyse these extraordinary properties of CNT based polymer composites with ANSYS and ABAQUS software.

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