MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

School of Mechanical Engineering

Metal foam can be used to create a high-surface area to exchange more heat which will reduce size of heat exchange device. It is becoming more popular due to its weight-saving and impact absorbing characteristics as compared to traditional approaches. It can be used in heat exchangers for various applications to improve heat transfer characteristics. Present work is carried out in two parts as analysis of a circular pipe 1.5 m long having ID 40 mm and OD 45 mm with metal foam firstly, and in other part, analysis of double tube heat exchanger with metal foam in annular space is done. The numerical analysis was further extended to 1.5 m long heat exchanger with inner tube of SS (ID 9.5, OD 12.7 mm) and outer tube of GI (ID 28, OD 33.8 mm). Nickel metal foam having 0.9 porosity and pore density 20 PPI was used A geometry with foam was generated in Creo, and then, the simulation was carried out in Ansys fluent flow using the K-omega (2 equation) viscous model which yielded in higher heat transfer coefficients. It has been noticed that the heat transfer coefficient (HTC) was about 1.5 times higher for single circular tube after inserting a metal foam. In double tube heat exchanger, HTC was found to be 2–2.5 times higher for flow through annular space with metal foam which increased overall HTC by approximately two times. Pressure drop is higher when metal foam was inserted in both the cases. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

World University root node

Engineering and Technology

Lecture Notes in Mechanical Engineering

Heat Transfer and Pressure Drop Analysis of Double Tube Heat Exchanger with and Without Metal Foam in Annular Space

Materials Today: Proceedings

Investigation for the effect of stiffener on vibration response of engine cover of vehicle

Forward kinematic analysis of 5-DOF LYNX6 robotic arm used in robot-assisted surgery

Modelling and analysis of heavy commercial vehicle suspension system for fatigue life enhancement

Structural acoustics analysis of automobile parts by using finite element method

A microplate heat exchanger is one of the most compact types of heat exchanger used for cooling systems, and not much research was carried out to study the performance of this type of heat exchanger with hybrid nanofluids. In this regard, the performance analysis of the microplate heat exchanger is carried out by estimating the convective heat transfer coefficient in terms of Nusselt number using a hybrid nanofluid. In current research work, Microplate heat exchangers tested using TiO2/ethylene glycol, ZnO/ethylene glycol nanofluids, and a hybrid nanofluid with varied nanoparticle volume fractions. Based on the results, it was found that the thermal conductivity of hybrid nanofluids and the overall heat transfer coefficient by applying hybrid nanofluids show better enhancement than nanofluids. The maximum thermal conductivity ratio between the hybrid nanofluid and the base fluid is 2.10. The maximum Nusselt number of 35.8 was observed for hybrid (TiO2–ZnO/ethylene glycol) at 50 °C and a volume fraction of 4%. © 2023 The Authors

Case Studies in Thermal Engineering

A case study on analyzing the performance of microplate heat exchanger using nanofluids at different flow rates and temperatures

Magnesium alloys are suitable biological material because of its favourable mechanical qualities, high biocompatibility, and biodegradability. However, it has poor corrosion resistance and has rapid dissolution in the corrosive environment which will weakens its mechanical characteristics. The surface characteristics of magnesium alloy must thus be changed using a suitable surface modification technology, such as micro arc oxidation (MAO). It was observed that characteristics of MAO coating can changed by varying electrical parameters like duty cycle, current density, type of power output, frequency, and processing time. It was noticed that when all other factors are held constant, duty cycle, processing time, and frequency primarily effect the coating's porosity, number of cracks and thickness, which in turn influences how well the coating performs. DC, AC, pulsed bipolar, and pulsed unipolar, are the four categories into which the current regimes are classified. It was found that, unipolar current mode MAO coatings found to be rough, highly porous, and vulnerable to microcracks due to stronger spark discharge. MAO coating produced in a bipolar current type of mode have larger pores but are more uniform in thickness and compact. It was noticed that the in-vitro cell assays showed cells L929 on the Ca-P coated Mg alloy to have considerably good adhesion, a high growth rate, and strong proliferation (p 0.05). In other words, the cytocompatibility was greatly enhanced by the Ca-P coating. It was discovered that the Ca-P coated Mg alloy improved cell responsiveness and encouraged early bone formation at the implant/bone interface by both conventional pathological examination and immunohistochemistry investigation. The Ca-P coating was found to be an effective method for raising the surface bioactivity of Mg alloy. It was also observed that the calcium phosphate coating deposited by MAO process improve surface biomineralization which is the main mechanism behind bioactivity. Functional groups that are present on surface engage electrostatically through calcium and phosphate ions from solutions to start the biomineralization process. Calcium phosphates have excellent biocompatibility and are quite comparable to the mineral makeup of bone. The current study aims to investigate the bioactivity of calcium phosphate coatings and the characteristics of magnesium and its alloys. © 2023 Trans Tech Publications Ltd, Switzerland.

Key Engineering Materials

Recent Advances on Biocompatible Coating on Magnesium Alloys by Micro Arc Oxidation Technique

The use of cutting-edge techniques is beneficial for the research and development of biomaterials and the production of new sustainable biomaterials. Eco-friendly biomaterials should be promoted. As prospective substitutes for conventional materials, a variety of biomaterials have been conceived and produced to date and successfully used in various biomedical disciplines. The sustainability component in the additive manufacturing of biomaterials is the main goal of this article. There is discussion of various metallic biomaterials, including titanium, stainless steel, magnesium, cobalt-chromium alloy, zinc, tantalum etc. The effects of several additive manufacturing techniques on sustainability are examined. Also, the properties of additive manufactured biomaterials and sustainability aspect of biomaterials are discussed in detail. By reducing material waste and using time and energy efficiently, additive manufacturing can assist to lower costs and having less harmful effects on the environment. This article discussed sustainability aspects of different additive manufacturing techniques used for manufacturing of biomaterials. © 2023 Chinese Institute of Industrial Engineers.