Experimental studies on solar flat plate collector with internally grooved tubes using aqueous ethylene glycol

2017 ◽  
Vol 53 (3) ◽  
pp. 222-228 ◽  
Author(s):  
Vidhi Upadhyay ◽  
Rashmi ◽  
P. Himanshu Khadloya ◽  
Y. Raja Sekhar ◽  
A. D Sai Anoop Reddy ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Flat Plate ◽  
Experimental Studies ◽  
Aqueous Ethylene Glycol ◽  
Flat Plate Collector

scholarly journals Suitability of base liquid in a nanofluid-laden solar flat-plate collector with emphasize on bioglycol

2018 ◽  
Vol 225 ◽  
pp. 04014
Author(s):  
Seyed Reza Shamshirgaran ◽  
Hussain H. Al-Kayiem ◽  
Morteza K. Assadi ◽  
K.V. Sharma
Keyword(s):  
Ethylene Glycol ◽  
Flat Plate ◽  
Propylene Glycol ◽  
Energetic Efficiency ◽  
Water Mixture ◽  
Safe Product ◽  
The Stability ◽  
Flat Plate Collector ◽  
Matlab Programming ◽  
Base Liquid

Ethylene glycol and propylene glycol are commonly used as thermal liquids in solar flat-plate collectors (FPCs). They are utilized as base liquid as well as for improving the stability of nanofluids in FPCs. The objective of the present paper is to introduce a renewable-derived bio glycol for use as base liquid in FPCs. The effect of base ratio (BR) of different glycol products on the performance of a conventional FPC and a nanofluidladen FPC is investigated in this paper to determine its suitability. MATLAB programming was employed for modeling the performance of the FPC operating with copper and cerium oxide nanomaterials. The results show that 20:80 bio glycol/water mixture is capable of enhancing the FPC’s energetic efficiency up to 72.1% which is higher than with either ethylene glycol and propylene glycol. The energy efficiency of a glycol-based nanofluid-filled FPC decreases with the base ratio of all three glycol products. Since bio glycol is a non-toxic and safe product, it can be utilized as a safe and environmentally-friend antifreeze and base liquid in nanofluid-filled FPCs.

Experimental studies on heat transfer in the flat-plate collector of a solar pump

1996 ◽  
Vol 9 (1-4) ◽  
pp. 645-648 ◽  
Author(s):  
K. Sumathy ◽  
A. Venkatesh ◽  
V. Sriramulu
Keyword(s):  
Heat Transfer ◽  
Flat Plate ◽  
Experimental Studies ◽  
Solar Pump ◽  
Flat Plate Collector

Application of Generalized Regression Neural Network in Predicting the Thermal Performance of Solar Flat Plate Collector Systems

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
M. Sridharan ◽  
Shribalaji Shenbagaraj
Keyword(s):  
Neural Network ◽  
Flat Plate ◽  
Thermal Performance ◽  
Experimental Studies ◽  
Generalized Regression Neural Network ◽  
Fluid Temperature ◽  
Transient Nature ◽  
Collector System ◽  
Generalized Regression ◽  
Flat Plate Collector

Abstract This study presents a smart neural network (NN) model for estimating the thermal performance of a transient nature solar flat plate collector system (SFPCS). For this purpose, a series of experimental studies are conducted through four successive days with three different arrangements of SFPCS (standalone, series, and parallel). Experimental results of such arrangements are then used for designing a generalized regression neural network (GRNN) model. The GRNN architecture proposed in this study consists of four inputs (mass flowrate, solar irradiance, fluid temperature difference, and collector area) and two dependent outputs (power output and efficiency of SFPCS). Such GRNN architecture is trained, tested, and validated with real-time experimental transient datasets for each arrangement individually. The results of the GRNN model are in good agreement with experimental datasets. The overall accuracy of the developed GRNN model in predicting the performance of standalone, series, and parallel connected SFPCS is 98%.

ENHANCEMENT OF THERMAL PERFORMANCE OF SOLAR FLAT PLATE COLLECTOR USING SiO2 NANOFLUID

2017 ◽  
Vol 12 (4) ◽  
pp. 33 ◽  
Author(s):  
DALWADI M.D. ◽  
NAIK H.K. ◽  
PADHIAR R.D. ◽  
RANA S.S. ◽  
CHAVDA N.K. ◽  
...  
Keyword(s):  
Flat Plate ◽  
Thermal Performance ◽  
Flat Plate Collector

First and Second Law Analysis of a Flat Plate Collector Working With Nanofluids

2018 ◽  
Author(s):  
M. T. Nitsas ◽  
I. P. Koronaki ◽  
L. Prentza
Keyword(s):  
Flat Plate ◽  
Second Law Of Thermodynamics ◽  
Climatic Conditions ◽  
Working Fluid ◽  
Second Law ◽  
Inlet Temperature ◽  
Water Tank ◽  
Systems Quality ◽  
Typical Day ◽  
Flat Plate Collector

The utilization of solar energy in thermal energy systems was and always be one of the most effective alternative to conventional energy resources. Energy efficiency is widely used as one of the most important parameters in order to evaluate and compare thermal systems including solar collectors. Nevertheless, the first law of thermodynamics is not solely capable of describing the quantitative and qualitative performance of such systems and thus exergy efficiency is used so as to introduce the systems’ quality. In this work, the performance of a flat plate solar collector using water based nanofluids of different nanoparticle types as a working fluid is analyzed theoretically under the climatic conditions in Greece based on the First and Second Law of Thermodynamics. A mathematical model is built and the model equations are solved iteratively in a MATLAB code. The energy and exergy efficiencies as well as the collector losses coefficient for various parameters such as the inlet temperature, the particles concentration and type are determined. Moreover, a dynamic model is built so as to determine the performance of a flat plate collector working with nanofluids and the useful energy that can be stored in a water tank. The exergy destruction and exergy leakage are determined for a typical day in summer during which high temperatures and solar intensity values are common for the Greek climate.

Sign in / Sign up

Export Citation Format

Share Document