Department of Mechanical Engineering: Recent submissions

Now showing items 81-100 of 137

Exergy, economic, environmental and sustainability analyses of possible regenerative evaporative cooling device topologies

Kashyap, S.; Sarkar, J.; Kumar, A. (Elsevier Ltd, 2020-08)

Due to the increase in cooling load globally, it needs to find an efficient, environment-friendly and sustainable cooling technology. The regenerative evaporative cooler is a better option in this direction. The regenerative ...
Mechanical and tribological characterization of industrial wastes reinforced aluminum alloy composites fabricated via friction stir processing

Kumar, H.; Prasad, R.; Kumar, P.; Tewari, S.P.; Singh, J.K. (Elsevier Ltd, 2020-08-05)

The fabrication of particulate reinforced metal matrix composites via melt based processes poses issues like aggregation, wettability and formation of detrimental phases which may severely affect their performance. Recently ...
Performance enhancement strategies of a hybrid solar chimney power plant integrated with photovoltaic panel

Pratap singh, A.; Kumar, A.; Akshayveer; Singh, O.P. (Elsevier Ltd, 2020-08-15)

This paper examines the possibility of integrating a photovoltaic (PV) module in a hybrid solar chimney power plant (HSCPP). Since HSCPP is a greenhouse thermal buoyancy-driven system, the surrounding high temperature ...
Complex pattern formation in solutions of protein and mixed salts using dehydrating sessile droplets

Pathak, B.; Christy, J.; Sefiane, K.; Gozuacik, D. (American Chemical Society, 2020-08-25)

A sessile droplet of a complex fluid exhibits several stages of drying leading to the formation of a final pattern on the substrate. We report such pattern formation in dehydrating droplets of protein (BSA) and salts (MgCl2 ...
Yearly analysis of peak temperature, thermal amplitude, time lag and decrement factor of a building envelope in tropical climate

Rathore, P.K.S.; Shukla, S.K.; Gupta, N.K. (Elsevier Ltd, 2020-09)

Two similar building structures, one is with macrocapsules of PCM called the experimental building structure (EBS), while the other is without macrocapsules of PCM called the reference building structure (RBS) were developed ...
Experimentation on solar-assisted heat pump dryer: Thermodynamic, economic and exergoeconomic assessments

Singh, A.; Sarkar, J.; Rekha, Sahoo (Elsevier Ltd, 2020-09-15)

The convective closed-loop solar-assisted heat pump dryer (batch type) has been designed, fabricated and experimentally investigated for both simple heat pump drying (HPD) and solar-assisted heat pump drying (SAHPD) modes. ...
Co-pyrolysis of eucalyptus and sodium polyacrylate: optimization and synergistic effect

Singh, R.K.; Srivastava, D.K.; Sarkar, A.; Chakraborty, J.P. (Elsevier Ltd, 2020-10-01)

Co-pyrolysis of eucalyptus and sodium polyacrylate was carried out in a quartz tube reactor and the process was optimized using response surface methodology (RSM). The statistical analysis revealed that both polymer/biomass ...
Design and development of a multipurpose portable heating setup for 45S5 bioglass and other ceramic samples

Singh, J.K.; Rao, U.S.; Pyare, R. (American Institute of Physics Inc., 2020-10-01)

As per the voices in the precision manufacturing industries, the machining of brittle materials such as glass and diamond is intricate owing to their thermo-mechanical properties. Machining of the brittle material with a ...
Effect of sic reinforcement and its variation on the mechanical characteristics of az91 composites

Kumar, A.; Kumar, S.; Mukhopadhyay, N.K.; Yadav, A.; Winczek, J. (MDPI AG, 2020-11-01)

In this study, the processing of SiC particulate-strengthened magnesium alloy metal matrix composites via vacuum supported inert atmosphere stir casting process is presented. The effects of small variations in the SiC ...
Thermal performance optimization of heat pipe using nanofluid: response surface methodology

Gupta, N.K.; Sharma, A.; Rathore, P.K.S.; Verma, S.K. (Springer Science and Business Media Deutschland GmbH, 2020-11-01)

Nanofluids are the new class of thermo-fluidics. Researchers found that nanofluids have the potential to enhance the thermal performance of various thermal applications. In the present paper, parametric optimization of the ...
Semianalytic Weibull model to assess the influence of strength controlling flaws for bimodular C-ring specimen

Bhushan, A.; Panda, S.K. (ASTM International, 2020-11)

The present study addresses the issues of shifting of elastic axis and elastic surface for strength scaling of bimodular C-ring specimens using a Weibull statistical model. A semianalytical weakest link theory approach has ...
Experimental study on the viscosity of hybrid nanofluid and development of a new correlation

Sahoo, R.R. (Springer Science and Business Media Deutschland GmbH, 2020-11-01)

The present experimental analysis targeted on the preparation of water based (Al2O3-SiC-TiO2) ternary hybrid nanofluids by the mistreatment of two-stage methodology. Each vol. fraction sample of ternary hybrid nanofluids ...
Efficient designs of double-pass curved solar air heaters

Kumar, A.; Akshayveer; Singh, A.P.; Singh, O.P. (Elsevier Ltd, 2020-11)

Recent research has shown that flat plate double-pass solar air heaters (DPSAH) exhibit higher thermal performance compared to conventional flat plate single-pass solar air heaters (SPSAH). However, scientific literature ...
Thermohydraulic performance of a new internal twisted ribs automobile exhaust heat exchanger for waste heat recovery applications

Karana, D.R.; sahoo, R.R. (John Wiley and Sons Ltd, 2020-11-01)

The performance of the thermoelectric-based waste heat recovery (WHR) system in an automobile greatly depends on the amount of heat extracted by the exhaust heat exchanger (EHE). In the present study, the thermohydraulic ...
Review on passive daytime radiative cooling: Fundamentals, recent researches, challenges and opportunities

Bijarniya, J.P.; Sarkar, J.; Maiti, P. (Elsevier Ltd, 2020-11)

Passive radiative sub-ambient cooling is an emerging field of futuristic research and development and has the potential to reduce water and electricity demands, and the negative environmental effects of conventional cooling ...
Environmental effect on the performance of passive daytime photonic radiative cooling and building energy-saving potential

Bijarniya, J.P; Sarkar, J.; Maiti, P. (Elsevier Ltd, 2020-11)

Passive photonic radiative cooling is used to make sky exposed surfaces sub-ambient with recent development in metamaterials throughout the day and night cycle. Daytime radiative cooling depends on the intensity of solar ...
Forebody wake effects on parachute performance for re-entry space application

Pratap, M.; Agrawal, A.K.; Sati, S.C.; Kumar, V. (Defense Scientific Information and Documentation Centre, 2020-05-01)

Forebody generates its own wake that influences the performance of aerodynamic decelerators during the flights. Many parachute Jumpers have experienced the failure of an ejected pilot chute as the parachute canopy collapsed ...
Synthesis and tribological characterization of copper based composites containing carbide

Tyagi, R.; Singh Gautam, R.K. (Institute of Physics Publishing, 2020-06-22)

Keeping in view the importance of the Cu based composites in sliding electric contact applications, the aim of the study is synthesise copper-chromium alloy based composites containing different wt. % of TiC by using a ...
Hydrothermal performance of plate heat exchanger with an alumina–graphene hybrid nanofluid: experimental study

Bhattad, A.; Sarkar, J. (Springer, 2020-07-01)

An experimental investigation is conducted with graphene–Al2O3 hybrid nanofluid as a coolant in corrugated surface plate heat exchanger to study energetic performance. The combinations studied are Al2O3–graphene in 4:1 ...
Emission characteristics of ultrafne particles from bare and Al2O3 coated graphite for high temperature applications

Yadav, S. K.; Shukla, P.; Joshi, Manish; Khan, Arshad; Kaushik, A.; Jha, Ajit Kumar; Sapra, B. K.; Singh, R. S. (Nature Research, 2020-12-01)

Owing to its exceptional properties at high temperature, graphite is used in several applications such as structural material and fuel block in high temperature nuclear reactors. Air ingress is one of the serious safety ...

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