Search Results - "Esfahani, J. A."

Numerical investigation of turbulent CuO–water nanofluid inside heat exchanger enhanced with double V-cut twisted tapes by Nakhchi, M. E., Esfahani, J. A.

“…This numerical investigation aims to study the turbulent characteristics and thermal enhancement parameter of CuO–water nanofluids through heat exchangers…”
Get full text

Experimental study of a novel portable solar still by utilizing the heatpipe and thermoelectric module by Rahbar, N., Esfahani, J.A.

“…In this study, an attempt has been made to design a new type portable thermoelectric solar still (PTSS). In the PTSS, a thermoelectric module is used to…”
Get full text

Evacuating liquid coatings from a diffusive oblique fin in micro-/mini-channels by Asadollahi, A, Esfahani, J. A, Ellahi, R

“…Two-phase liquid flow in micro-/mini-channels has several thermal advantages in comparison with single-phase liquid flow, such as heat transfer rate,…”
Get full text

Productivity estimation of a single-slope solar still: Theoretical and numerical analysis by Rahbar, N., Esfahani, J.A.

“…This study investigates the ability of a 2-D CFD (computational fluid dynamic) simulation in estimating the hourly yield of a single-slope solar still…”
Get full text

A review on potentials of coupling PCM storage modules to heat pipes and heat pumps by Rashidi, S., Shamsabadi, H., Esfahani, J. A., Harmand, S.

“…A large portion of world’s final energy consumption is employed in thermal form. The proper techniques can be used to improve the efficiencies of thermal…”
Get full text

Entropy generation of turbulent Cu–water nanofluid flow in a heat exchanger tube fitted with perforated conical rings by Nakhchi, M. E., Esfahani, J. A.

“…Entropy generation analysis for the Cu–water nanofluid flow through a heat exchanger tube equipped with perforated conical rings is numerically investigated…”
Get full text

Targeting a channel coating by using magnetic field and magnetic nanofluids by Akar, S., Rashidi, S., Esfahani, J. A., Karimi, N.

“…In this paper, the magnetic nanofluids and magnetic field are used to provide a coating around the wall of a channel. The magnetic field is induced by the…”
Get full text

Theoretical study of nanofluids behavior at critical Rayleigh numbers by Esfahani, J. A., Forouzi Feshalami, Behzad

“…The present work investigates the natural convection of nanofluids in Rayleigh–Benard problem. New models, particularly some enhancement factors, are presented…”
Get full text

Two-dimensional analytical model of flame characteristic in catalytic micro-combustors for a hydrogen–air mixture by Fanaee, S.A., Esfahani, J.A.

“…The present paper aims to analytically investigate combustion phenomenon in micro-combustors by using a two-dimensional model. The main objective is to analyze…”
Get full text

Mathematical simulation of convective drying: Spatially distributed temperature and moisture in carrot slab by Barati, E., Esfahani, J.A.

“…A one-dimensional unsteady state mathematical model of coupled heat and mass transfer equations is developed to simulate the convective drying of individual…”
Get full text

A novel approach to evaluate the temperature during drying of food products with negligible external resistance to mass transfer by Barati, E., Esfahani, J.A.

“…► A reliable mathematical model that captures the history and distribution of temperature is presented. ► The main connotation of present study regards to…”
Get full text

Mathematical modeling of convective drying: Lumped temperature and spatially distributed moisture in slab by Barati, E., Esfahani, J.A.

“…The present study describes the modeling and simulation of the drying process. The model considers fundamentals of the drying process and takes internal…”
Get full text

Effect of non-uniform heating on entropy generation for the laminar developing pipe flow of a high Prandtl number fluid by Esfahani, J.A., Shahabi, P.B.

“…Non-uniform distribution of heat flux as a wall boundary condition is used for laminar developing pipe flow to find the optimum case in which minimum entropy…”
Get full text

Heat transfer enhancement and pressure drop penalty in porous solar heat exchangers: A sensitivity analysis by Rashidi, S., Bovand, M., Esfahani, J.A.

“…•The Nusselt number decreases by increasing porous substrate thickness for Da=10−6.•The minimum pressure drop ratio occurs for low level of porous substrate…”
Get full text

Enhancement of heat transfer by nanofluids and orientations of the equilateral triangular obstacle by Bovand, M., Rashidi, S., Esfahani, J.A.

“…•The heat transfer is improved by nanofluids and orientations of the obstacle.•The role of solid volume fraction on the fluid flow and heat transfer is…”
Get full text

Optimization of convective drying by response surface methodology by Majdi, H., Esfahani, J.A., Mohebbi, Mohebbat

“…•The apple is dried utilizing convective drying method.•The experiments are studied via RSM and utilizing desirability function.•The drying time, energy…”
Get full text

The effect of magnetic field on instabilities of heat transfer from an obstacle in a channel by Rashidi, S., Esfahani, J.A.

“…This paper presents forced convective heat transfer in a channel with a built-in square obstacle. The governing equations with the boundary conditions are…”
Get full text

Downward flame spread over PMMA sheets in quiescent air: Experimental and theoretical studies by Ayani, M.B., Esfahani, J.A., Mehrabian, R.

“…To explore the flame spread mechanisms over noncharring material, downward flame spread over polymethyl methacrylate (PMMA) sheets from 1.5 to 10 mm thick is…”
Get full text

CFD approach for two-phase CuO nanofluid flow through heat exchangers enhanced by double perforated louvered strip insert by Nakhchi, M.E., Esfahani, J.A.

“…In this study, turbulent flow characteristics of CuO-water nanofluid through heat exchanger pipe enhanced with louvered strips are numerically investigated…”
Get full text

Influences of corrugation profiles on entropy generation, heat transfer, pressure drop, and performance in a wavy channel by Akbarzadeh, M., Rashidi, S., Esfahani, J.A.

“…•The triangular channel provides the highest thermal entropy generation.•Among wavy channels, the trapezoidal channel has the highest pressure drop.•Among wavy…”
Get full text