A5078672185- Nanofluid Flow and Heat Transfer
- Solar Thermal and Photovoltaic Systems
- Heat Transfer and Optimization
- Energy and Environment Impacts
- Thermal properties of materials
- Catalysts for Methane Reforming
- Thermoelastic and Magnetoelastic Phenomena
- Thermography and Photoacoustic Techniques
- Planetary Science and Exploration
- Smart Grid Energy Management
- Carbon Dioxide Capture Technologies
- Heat Transfer Mechanisms
- Astro and Planetary Science
- Advanced Thermodynamics and Statistical Mechanics
- Photovoltaic System Optimization Techniques
- Neural Networks and Applications
- Electric Vehicles and Infrastructure
- Solar Radiation and Photovoltaics
- Integrated Energy Systems Optimization
- Building Energy and Comfort Optimization
- Flood Risk Assessment and Management
- Radiative Heat Transfer Studies
- Thermal Radiation and Cooling Technologies
- Hybrid Renewable Energy Systems
- Soil and Unsaturated Flow
HUN-REN Centre for Energy Research
2008-2024
Budapest University of Technology and Economics
2009-2021
HUN-REN Wigner Research Centre for Physics
2019-2020
The rapid spread of renewables made it essential to design optimal hybrid renewable energy systems (HRES) with the distinctive economic and environmental impacts each technology in mind. According a comprehensive literature review, very few studies consider life-cycle small-scale system optimization. This paper aims fill this gap by providing multi-objective framework for household-scale based on technical modeling several typical components. Solar photovoltaic, wind turbine, solar heat...
Forecasting the power production of grid-connected photovoltaic (PV) plants is essential for both profitability and prospects technology. Physically inspired modelling represents a common approach in calculating expected output from numerical weather prediction data. The model selection has high effect on physical PV forecasting accuracy, as difference between most least accurate chains 13% mean absolute error (MAE), 12% root square (RMSE), 23–33% skill scores plant average. forecast...
We used a novel hybrid functional machine learning algorithm to predict the spatial distribution of landslides in Sarkhoon watershed, Iran. developed new ensemble model which is combination algorithm, stochastic gradient descent (SGD) and an AdaBoost (AB) Meta classifier namely ABSGD landslides. The incorporates 20 landslide conditioning factors, we ranked using least-square support vector (LSSVM) technique. For modeling, considered 98 locations, 70% (79) were for training 30% (19)...
In this study, we introduced a novel hybrid artificial intelligence approach of rotation forest (RF) as Meta/ensemble classifier based on alternating decision tree (ADTree) base called RF-ADTree in order to spatially predict gully erosion at Klocheh watershed Kurdistan province, Iran. A total 915 locations along with 22 conditioning factors were used construct database. Some soft computing benchmark models (SCBM) including the ADTree, Support Vector Machine by two kernel functions such...
Results of heat pulse experiments in various artificial and natural materials are reported the paper.The performed at room temperature with macroscopic samples.It is shown that evolution does not follow Fourier's law but well explained by Guyer-Krumhansl equation.The observations confirm ability non-equilibrium thermodynamics to formulate universal constitutive relations for thermomechanical processes.
Abstract We report heat pulse experiments at room temperature that cannot be described by Fourier's law. The experimental data are modeled properly the Guyer–Krumhansl equation, in its over-diffusion regime. phenomenon may due to conduction channels with differing conductivities and parallel direction of flux.
The expansion of the industrial sector and continuous increase in population are reasons for ever-increasing demand electricity, which directly burdens central grid. Absence remoteness from grid make off-grid power generation most reliable source electricity to meet needs peripheral areas. Electrification remote areas through decentralized using renewable energy sources has emerged as a low-cost practically viable solution. Domestic-level trading makes system more cost-effective. This study...
Nanofluids obtained from halloysite and de-ionized water (DI) were prepared by using surfactants changing pH for heat-transfer applications. The nanotubes (HNTs) nanofluids studied several volume fractions (0.5, 1.0, 1.5 vol%) temperatures (20, 30, 40, 50, 60 °C). properties of HNTs with a scanning electron microscope (SEM), energy-dispersive X-ray analysis (EDX), Fourier-transform infrared (FT-IR) spectroscopy, powder diffraction (XRD), Raman spectroscopy thermogravimetry/differential...
The energy hub approach facilitates the interconnection of diverse infrastructures. This paper presents a mathematical formulation to evaluate operational mode residential model for assessing possible level local trading. Electricity and natural gas are inputs this that meet typical house's electric heat demands. Integrating renewable sources storage systems streamlines framework. A home load management (HLM) strategy is proposed manage consumption responsive appliances. Solar panels battery...
The non-Fourier heat conduction phenomenon on room temperature is analyzed from various aspects. first one shows its experimental side, in what form it occurs, and how we treated it. It demonstrated that the Guyer-Krumhansl equation can be next appropriate extension of Fourier's law for room-temperature phenomena modeling heterogeneous materials. second approach provides an interpretation generalized equations using a simple thermo-mechanical background. Here, Fourier coupled to elasticity...
The solar chimney power plant (SCPP) is a straightforward and clean technique to generate electricity from radiation. However, this technology still faces major challenges, such as low efficiency, which has hindered its industrialization. This study experimentally develops novel collector design improve the collector's efficiency. new includes metallic tubes radiation absorbers hung canopy of collector. are open at top sealed with transparent sheets bottom decrease reflected into ambient...
The prosumers are the new performers progressing towards a low-carbon future. Renewable-based power generation is essential, even in rural areas, to pave path toward sustainable development. This study establishes simulation model for two identical residential buildings assess prosumer's impact on future local (standalone) energy systems. According climate condition of Pakistan, technical, economic, and environmental performance standalone system evaluated using TRNSYS software. Assumptions...
Direct CO2 hydrogenation to hydrocarbons is a promising method of reducing emissions along with producing value-added products. However, reactor design and performance have remained challenging issue because low olefin efficiency high water production as by-product. Accordingly, one-dimensional non-isothermal mathematical model proposed predict the membrane statistical analysis used assess effects important variables such temperatures (Tr:A), shell (Ts:B) tube (Tt:C) well sweep ratio (θ:D)...