Experimental Analysis of Heat Transfer by Using Nanofluid and Impact of Thermophysical Properties

Abstract

The scope of the project is to analyse the heat transfer behaviours by using shell and tube heat exchangers and measurements of various thermophysical properties of carbon nanotube nanofluid. The nanofluid is created using different volume fractions at different operation temperatures. The research focuses on theoretical and experimental research on CNT nanofluids, with the goal of improving thermophysical parameters such as thermal conductivity, specific heat, and viscosity. The thermophysical characteristics of CNTs were investigated using this theoretical method. Various tests were carried out to investigate the thermophysical qualities, and they were found to have an impact. The improved characteristics of carbon nanotubes (CNTs) have the potential to save energy and reduce CO2, NO2, and SO2 emissions in industrial settings. Improving heat exchange performance in the thermal sector would result in a high heat-to-power conversion efficiency. Nanofluids can considerably enhance critical heat flux (CHF) in heat transfer systems.

Material Behaviour of Three Blade Propeller Using Metal Additive Manufacturing Techniques

“…Figure 2 shows that the 3-blade propeller has been designed by Autodesk inventor as it has the flexibilities in designing complex structures [27][28][29][30][31][32][33][34]. e modelling has taken 5 steps in reaching the below-mentioned model:…”

Machine Learning Strategy to Achieve Maximum Energy Harvesting and Monitoring Method for Solar Photovoltaic Panel Applications

“…The batteries in all components of the PV power supply system have a very short lifespan, but manufacturers of modern nonmaintenance batteries call the buffer mode a discharge of about 10 years (or traditional 1000 cycles working on a strong charge-if you count one cycle per year, in this mode they will last 3 years) [3]. It noticed that the cost of batteries is usually only 10-20% of the total cost of the whole system, and the cost of inverters and charge controllers (both are complex electronics, so there is some probability of their failure) too less.…”

“…Figure 4 shows the proposed maximum energys harvesting and monitoring schematic. The current is flowing in the diode A c described by the Shockley equations, as shown in formula (3), where A c indicates the saturation current and is represented by…”

“…Therefore, if the panel is perpendicular to the flow, its effective area is equal to its actual area, the flow becomes 60% from the vertical-half of the actual area, and if the flow is parallel to the panel, its performance area is zero [2]. Thus, the significant deviation of the flow from the perpendicular to the panel increases the reflection, but reduces its effective area, which causes a more significant drop in output [3][4][5]. For our purposes, it is obvious that the fixed orientation of the panel perpendicular to the flow of sunlight is the most effective [6].…”

Thermal Analysis of Ni-Cu Alloy Nanocomposites Processed by Sand Mold Casting

“…In failure analysis cases where spot analysis is critical to draw a reliable conclusion, simultaneous SEM and EDS analysis are beneficial. Secondary and backscattered electrons are used to shape a picture needed for morphological analysis, and X-rays are used to identify and quantify chemicals present in observable concentrations in a SEM/EDS framework [21][22][23][24][25][26][27]. e technique of X-ray diffraction is used to analyze crystal structures and atomic spacing.…”