TY  - JOUR
A1  - Ahmadi, Mohammad Hossein
A1  - Baghban, Alireza
A1  - Sadeghzadeh, Milad
A1  - Zamen, Mohammad
A1  - Mosavi, Amir
A1  - Shamshirband, Shahaboddin
A1  - Kumar, Ravinder
A1  - Mohammadi-Khanaposhtani, Mohammad
T1  - Evaluation of electrical efficiency of photovoltaic thermal solar collector
JF  - Engineering Applications of Computational Fluid Mechanics
N2  - In this study, machine learning methods of artificial neural networks (ANNs), least squares support vector machines (LSSVM), and neuro-fuzzy are used for advancing prediction models for thermal performance of a photovoltaic-thermal solar collector (PV/T). In the proposed models, the inlet temperature, flow rate, heat, solar radiation, and the sun heat have been considered as the input variables. Data set has been extracted through experimental measurements from a novel solar collector system. Different analyses are performed to examine the credibility of the introduced models and evaluate their performances. The proposed LSSVM model outperformed the ANFIS and ANNs models. LSSVM model is reported suitable when the laboratory measurements are costly and time-consuming, or achieving such values requires sophisticated interpretations.
KW  - Fotovoltaik
KW  - Erneuerbare Energien
KW  - Solar
KW  - Deep learning
KW  - Machine learning
KW  - Renewable energy
KW  - neural networks (NNs)
KW  - adaptive neuro-fuzzy inference system (ANFIS)
KW  - least square support vector machine (LSSVM)
KW  - photovoltaic-thermal (PV/T)
KW  - hybrid machine learning model
KW  - OA-Publikationsfonds2020
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20200304-41049
UR  - https://www.tandfonline.com/doi/full/10.1080/19942060.2020.1734094
VL  - 2020
IS  - volume 14, issue 1
SP  - 545
EP  - 565
PB  - Taylor & Francis
ER  - 
TY  - JOUR
A1  - Jilte, Ravindra
A1  - Ahmadi, Mohammad Hossein
A1  - Kumar, Ravinder
A1  - Kalamkar, Vilas
A1  - Mosavi, Amir
T1  - Cooling Performance of a Novel Circulatory Flow Concentric Multi-Channel Heat Sink with Nanofluids
JF  - Nanomaterials
N2  - Heat rejection from electronic devices such as processors necessitates a high heat removal rate. The present study focuses on liquid-cooled novel heat sink geometry made from four channels (width 4 mm and depth 3.5 mm) configured in a concentric shape with alternate flow passages (slot of 3 mm gap). In this study, the cooling performance of the heat sink was tested under simulated controlled conditions.The lower bottom surface of the heat sink was heated at a constant heat flux condition based on dissipated power of 50 W and 70 W. The computations were carried out for different volume fractions of nanoparticles, namely 0.5% to 5%, and water as base fluid at a flow rate of 30 to 180 mL/min. The results showed a higher rate of heat rejection from the nanofluid cooled heat sink compared with water. The enhancement in performance was analyzed with the help of a temperature difference of nanofluid outlet temperature and water outlet temperature under similar operating conditions. The enhancement was ~2% for 0.5% volume fraction nanofluids and ~17% for a 5% volume fraction.
KW  - Nanostrukturiertes Material
KW  - Kühlkörper
KW  - Nasskühlung
KW  - nanofluid
KW  - Nanomaterials
KW  - Machine learning
KW  - heat sink
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20200401-41241
UR  - https://www.mdpi.com/2079-4991/10/4/647
VL  - 2020
IS  - Volume 10, Issue 4, 647
PB  - MDPI
CY  - Basel
ER  -