Thermal Performance of a Plate Fin Heat Sink with Half Round Pins using CFD

As electronic devices continue to advance towards high performance and miniaturization measurements, heat dissipation problems have become a major obstacle to their growth. Moreover, the conventional method of air cooling did not fulfil the heat dissipation criterion of high density. Many scientists have researched the thermal efficiency of heat sinks, but the effects of half round pins on plate fin heat sinks have not yet been explored in the best possible way. In this work, a CFD model is developed to evaluate the effect of half round pin on the thermal performance of plate fin heat sinks, compared with literary experimental data. Here in this work, a constant heat flux of 18750W m2 along with a variable value of inlet air flow i.e. 0.00092, 0.00218, 0.0033 and 0.00433 kg s has been applied. In particular, the plate fin heat sink subject to impinging flow was compared to the conventional design Plate fin heat sink without half round pins . Variation of conventional thermal resistance is compared with the approach proposed in the air mass flow rate of different values. The results of this study show that the base temperature along with the thermal resistance of the heat sink with half round pin is lower for the proposed design. Nusselt number in proposed approach is found to be 28.98 higher than the conventional design at various values of the air mass flow rate due to increase in average heat transfer coefficient. Therefore, the developed approach has strong potential to be used to improve the thermal performance of heat sinks and hence to develop more advanced effective cooling technologies. 

by Dhiraj Kumar | Prof. Rohit Soni "Thermal Performance of a Plate Fin Heat Sink with Half Round Pins using CFD" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33671.pdf

Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/33671/thermal-performance-of-a-plate-fin-heat-sink-with-half-round-pins-using-cfd/dhiraj-kumar

callforpaperarts, artsjournal, peerreviewedjournal 

A Literature Review on the Role of Zycotherm as an Additive used in Bitumen

Water is one of the prominent damaging elements in asphalt pavement due to its enormous detrimental effects on pavement performance. Moisture damage induced by the actions of water reduces the strength as well as durability of asphalt mixtures, tends to cause various types of distress such as potholes, stripping, and others to the pavement, formed by lack of cohesion and adhesion. To sort out this problem, the modification of bitumen is needed to enhance its properties for pavement surface. Ergo, the current paper introduces the findings of prior research studies on Zycotherms effect as an anti stripping agent, recently developed, chemically reactive nanomaterial that imparts strength to the surface of the pavement. In this study, optimum bitumen content by Marshal Mix Design, without and with necessary dosages of Zycotherm upgraded from Zycosoil and alterations in properties are reported through various tests.

by Dr. Maninder Singh | Dr. Kunal Jain | Sukhjinder Singh Kahlon "A Literature Review on the Role of Zycotherm as an Additive used in Bitumen" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33650.pdf

Paper Url: https://www.ijtsrd.com/engineering/transport-engineering/33650/a-literature-review-on-the-role-of-zycotherm-as-an-additive-used-in-bitumen/dr-maninder-singh

callforpaperbiologicalscience, biologicalsciencejournal

Numerical Investigation of Solar Air Heater Duct using Broken‘S’ Shaped Ribs Roughness on Absorber Plate

The solar air heater has an important place among solar heat collectors. It can be used as sub systems in many systems meant for the utilization of solar energy. Possible applications of solar air heaters are drying or curing of agricultural products, space heating for comfort regeneration of dehumidifying agents, seasoning of timber, curing of industrial products such as plastics. When air at high temperature is required the design of a heater becomes complicated and very costly. As far as the ultimate application for heating air to maintain a comfortable environment is concerned, the solar air heater is the most logical choice. In general solar heaters are quite suitable for low and moderate temperatures application as their design is simple. These solar air heaters have low heat transfer efficiency which can be improved using geometrical modifications like optimizing duct geometry or adding artificial roughness. The use of artificial roughness on the underside of the absorber plate is an effective and economic way to improve the thermal performance of a solar air heater. Several experimental investigations, involving different types of roughness elements, have been carried out to improve the heat transfer from the absorber plate to air flowing in solar air heaters. In this paper the CFD analysis on heat transfer and friction in rectangular ducts roughened with broken‘S’ shaped ribs has been presented. The relative gap width g e is varied from 0.5 to 2.5 and other parameter are constant. The effects of gap width g e on Nusselt number, friction factor and thermo hydraulic performance parameter have been discussed and results compared with smooth duct under similar conditions. It is found that the maximum heat transfer and friction characteristic at a relative gap width of 1. 

by Ankit Sahu | C. S. Koli "Numerical Investigation of Solar Air Heater Duct using Broken‘S’ Shaped Ribs Roughness on Absorber Plate" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33610.pdf

Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/33610/numerical-investigation-of-solar-air-heater-duct-using-broken-%E2%80%98s%E2%80%99-shaped-ribs-roughness-on-absorber-plate/ankit-sahu

callforpaperinternationaljournal, ugclistofjournals, bestinternationaljournal 

A Trial of Fly Ash with the Mix of Nano Silica for Deviation of Strength in Concrete

The primary elements of aggregate in concrete are to settle the measurements of the substantial part by decreasing the volumetric changes because of drying shrinkage of the bond water glue in solidified concrete, to diminish the warmth of hydration, and to go about as a filler material to streamline in the using of concrete. Since aggregate is an extraordinary, important piece of concrete, its qualities fundamentally influence crisp concretes workability, solidness, strength, warm properties, and solidified concrete unit weight. Concrete is one of the famous construction materials available today. Concrete is a composite of crushed rock, sand, gravel, or other mixture control composed by a hardened blend of cement and water. Concrete has found use in all construction types, from highway, canal, bridge, and dams to the most beautiful and artistic buildings. Its formed by mixing cement, coarse and fine aggregates, water, and additives in a certain prescribed proportion. Total is one of the main ingredients in concrete. It covers more than 60 75 of the overall volume of any concrete mix. 

by Pranshu Pandey | Dr. P. K. Singhai | Barun Kumar "A Trial of Fly-Ash with the Mix of Nano-Silica for Deviation of Strength in Concrete" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33661.pdf

Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/33661/a-trial-of-flyash-with-the-mix-of-nanosilica-for-deviation-of-strength-in-concrete/pranshu-pandey

ugcapprovedmanagementjournal, openaccessjournalofmanagement, paperpublicationinmanagement

Parametric Evaluation of Tall Structure with Various Lateral Load Resisting Systems Subjected to Dynamic Loadings

The high rise buildings are majorly suffering with seismic forces, it can be found out by displacement parameter. The more the displacement the lesser will be the stiffness of the structure. The static analysis is having higher displacement value than response spectrum analysis. The increase in percentage is about 17 . This will increase the construction cost due to increase in stiffness. The base shear value increases with increase in weight of the structure. However, the diagrid structure seems to be having lesser weight than all other models. From the overall analysis it is proved that, diagrid structure is very much effective than any other structure. However, in case of constraint in providing diagrid due to its architectural features, the outrigger system with bracing will be very much effective. 

by Mahadevaprasad M | B S Sureshchandra "Parametric Evaluation of Tall Structure with Various Lateral Load Resisting Systems Subjected to Dynamic Loadings" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33654.pdf

Paper Url: https://www.ijtsrd.com/engineering/structural-engineering/33654/parametric-evaluation-of-tall-structure-with-various-lateral-load-resisting-systems-subjected-to-dynamic-loadings/mahadevaprasad-m

internationaljournalsinengineering, callforpaperengineering, ugcapprovedengineeringjournal 

Technology Post COVID19 A Review

COVID 19 has been a caution light worldwide. We must realise that this calamity or crisis happen and is inevitable. It has provoked previously inconceivable uses of technology in all walks of life. Among the socio economic disturbance caused by covid 19, technology will play a vital role in rebuilding the future. This technology transformation or reshaping will result in a contact less society. The current collaboration tools provide for substandard interactions. This review article is an attempt to check out the importance of technology post COVID 19 so that another pandemic would see mankind facing it with modern technologies. 

by Aleena Sabrin | Ajmal Ali | Sarath Krishnan T | Dr. Noha Laj "Technology Post COVID19 - A Review" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33648.pdf

Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/33648/technology-post-covid19--a-review/aleena-sabrin

internationaljournalsofcomputerscience, callforpapercomputerscience, ugcapprovedjournalsforcomputerscience 

Performance Analysis of Sensor Node Energy in Wireless Sensor Networks A Perspective Analysis

Theoretical In the previous many years, Wireless Sensor Network WSN has become a wide territory of exploration. In WSN, various sensor hubs are arbitrarily arrangement with various energy level. Energy goes about as force source and is accessible to every sensor hub in restricted amount. The restricting element is that sensor hubs are energy compelled and reviving or supplanting battery is exorbitant and complex cycle. This paper investigates the distinctive energy utilization factors which impact the lifetime and execution of the WSNs. The primary variables which impact the energy utilization in WSNs are versatility, load adjusting, dependability, correspondence, crash, over hearing, ideal posting and inactivity. Specialists have demonstrated that the hub close to sink hub release fastly. Aside from these, a large portion of the energy is expended during the exchange of information from sender to recipient. In this paper exertion is made to dissect the impact of various variables on energy utilization in WSNs. 

by Pramod Gujre | Prof. Avinash Sharma "Performance Analysis of Sensor Node Energy in Wireless Sensor Networks: A Perspective Analysis" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6 , October 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd33681.pdf

Paper Url: https://www.ijtsrd.com/engineering/computer-engineering/33681/performance-analysis-of-sensor-node-energy-in-wireless-sensor-networks-a-perspective-analysis/pramod-gujre

peerreviewedjournals, reviewpapers, callforpaperhealthscience