Unique thermophysical properties of nanofluids set them apart from conventional basefluids; impart substantial role in enhancing heat transfer performance since they have the advantage exhibiting superior thermal conductivity. Due to their numerous applications various industrial and engineering sectors, researchers been putting significant efforts tailor transport demonstrate influence prominent factors on while finding out optimal values. Upon briefly providing an overview preparation...

Abstract The reduction in efficiency of photovoltaic (PV) modules when operating at high temperatures is a challenge that demands effective and economical cooling solutions. As such, aluminum heat sinks provide passive carbon-neutral method. This study aims to find the performances five different geometries be used for PV modules, where comparative analysis their relative under controlled environmental variables performed steady state condition. results show an arrangement solid T shaped...

Abstract Increased temperature of photovoltaic (PV) module decreases its performance; hence, integration the cooling system is imperative in minimizing this detrimental effect. In study, passive PV with different heatsinks has been simulated by thermal models using ansys steady-state software. The results were based on effect convective heat transfer coefficients from 5 to 1000 W/m2K for reduction 19 heatsinks. Three configurations: flat plate spreader, fin-only heatsinks, and fin-flat base...

High thermal load appears at the blade tip and casing of a gas turbine engine. It becomes significant design challenge to protect materials from this severe situation. As result geometric complexity experimental limitations, computational fluid dynamics tools have been used predict leakage flow aerodynamics heat transfer typical engine operating conditions. In paper, effect inlet temperature on structure has studied numerically. Uniform low (444 K) high (800 temperatures nonuniform...

Steady simulations were performed to investigate tip leakage flow and heat transfer characteristics on the rotor blade casing in a single-stage gas turbine engine. A typical high-pressure stage was modeled with pressure ratio of 3.2. The predicted isentropic Mach number adiabatic wall temperature showed good agreement available experimental data under similar operating condition. present numerical study focuses extensively effects clearance heights rotational speeds characteristics. It...

Purpose One of the most critical gas turbine engine components, rotor blade tip and casing, is exposed to high thermal load. It becomes a significant design challenge protect materials from this severe situation. The purpose paper study numerically effect inlet temperature on leakage flow structure heat transfer. Design/methodology/approach In paper, transfer has been studied numerically. Uniform low (LTIT: 444 K) (HTIT: 800 temperature, as well non‐uniform have considered. Findings results...

In this study, a typical kitchen having standard dimension of 213cm × 243cm 305cm was modeled with single open door exit. Steady state simulations were performed using three dimensional commercial CFD solver appropriate boundary conditions. Two heat sources used for modelling the that resembles double burner gas stoves urban residential in developing countries. earlier works, same model predictions validated at an optimum grid resolution and results have been presented thermal comfort,...

Abstract This article presents performance comparison between different liquid metal-based nanofluids termed as nano-liquid metal fluids in a microchannel heat sink to achieve ultimate cooling solutions without sacrificing the compact structure and heavy computing speed. The hydraulic thermal of having five metals (Ga, GaIn, EGaIn, GaSn, EGaInSn) base fluid four nanoparticles (carbon nanotube (CNT), Al2O3, Cu, diamond) solute are evaluated comparing with water-based nanofluids....

Lack of proper ventilation exhaust fumes from gas fired stoves in residential kitchens is a major health concern for some populations. It could even cause destruction property, and reduce quality life lifespan. In this study, typical kitchen having standard dimension 2.13 m × 2.43 3.05 was modeled with single open door exit. Two heat sources were used modeling the that resembles double burner stove an urban developing countries. Steady-state simulations performed using three-dimensional...

An unsteady numerical investigation was performed to examine time dependent behaviors of the tip leakage flow structures and heat transfer on rotor blade casing in a single stage gas turbine engine. A transonic, high-pressure modeled simulated using pressure ratio 3.2. The rotor’s clearance 1.2 mm height (3% span) its speed set at 9500 rpm. Periodic is observed for each vane passing period. Tip as well data showed highly behaviors. stator trailing edge shock appears operating transonic...

The rapidly rising demand for refrigeration technologies, mainly in and air conditioning, medical applications, electronic component cooling, produced much more energy than required. Thermoelectric is an innovative way to use additional cool reserve cooling. In this research, a photovoltaic-thermoelectric system capable of sustaining vaccine storage within the limit 2–8 °C has been established by experimentally optimizing its volume performance. design specification using forced convection...

The Hyperloop promises to revolutionize the transport infrastructure of 21st century by reducing travel time and allowing people reach transonic speed on land. It carries with it hope a sustainable transportation system during an era global energy crisis. Overall passenger safety in high-speed pod necessitates reliable braking system. This paper introduces possibility utilizing aerodynamic drag Hyperloop, anticipated operate at high Mach low Reynolds flow regime, attenuate pod. Numerical...

In this study, a typical kitchen having standard dimension of 213cm × 243cm 305cm was modelled with single open door exit. Steady state simulations were performed using three dimensional CFD code appropriate boundary conditions. Two heat sources used for modelling the that resembles double burner gas stoves urban residential in developing countries. earlier works, predictions validated at an optimum grid resolution and results presented thermal comfort [1] carbon dioxide emission [2] under...

One of the most critical gas turbine engine components, rotor blade tip and casing, are exposed to high thermal load. It becomes a significant design challenge protect materials from this severe situation. As result geometric complexity experimental limitations, Computational Fluid Dynamics (CFD) tools have been used predict leakage flow aerodynamics heat transfer at typical operating conditions. In paper, effect inlet temperature on structure has studied numerically. Uniform low (LTIT: 444...

Unsteady simulations were performed to investigate time dependent behaviors of the leakage flow structures and heat transfer on rotor blade tip casing in a single stage gas turbine engine. This paper mainly illustrates unsteady nature transfer, particularly, that caused by stator–rotor interactions. In order obtain time-accurate results, effects varying number steps, sub iterations, vane passing periods was firstly examined. The effect clearance height speeds also results showed periodic...

The present study assessed the feasibility of producing biogas from fallen tree leaves. This provides valuable insights into utilizing locally available organic waste materials for production and contributes to developing sustainable systems. Four species leaves, namely Jackfruit (Artocarpus heterophyllus), Mango (Mangifera indica), Mahogany (Swietenia macrophylla), Teak (Tectona grandis) were selected this experiment. employed co-digestion as a strategy, with cow-dung (Bos taurus) at 1%...

Lack of proper ventilation exhaust fumes from gas fired stoves in residential kitchens is a major health concern for some populations. It could even cause destruction property, reduced quality life and lifespan. In this study, typical kitchen having standard dimension 21.3 m × 24.3 30.5 was modeled with single open door exit. Two heat sources were used modeling the that resembles double burner stove an urban developing countries. Steady state simulations performed using three dimensional CFD...

The scientists of Rajshahi University together with Research Group for Applied Geology (RGAG) and Asian Arsenic Network (AAN) Japan suspect that groundwater about 56 districts out 64 are seriously contaminated arsenic. There 11 Million tubewells in Bangladesh which 5 highly arsenic contaminated. About 75 people the affected at risk total number patients suffering from Arsenicosis 7000 200 persons already died. To give safe water to peoples more investigations whole country is essential....

Steady simulations have been performed to investigate tip leakage flow and heat transfer characteristics on the casing rotor blade in a single stage turbine engine. A of stator was modeled with pressure ratio 3.2. The predicted isentropic Mach number adiabatic wall temperature showed good agreement available experimental data. effects clearance height rotational speed are mainly considered. It is observed that structure highly dependent gap as well speeds blade. In all cases, separates just...

Abstract There is a major health concern for people who use biomass as fuel cooking in rural residential kitchens of developing countries. The quality life greatly affected due to exposure exhaust flume. In this study, typical single-burner conventional stove was used model kitchen. overall dimension the kitchen 3.50 m × 2.20 1.85 m. A three-dimensional cfd code adopted perform steady-state simulations with appropriate boundary conditions. Numerical accuracy tested optimum grid well. varying...