Theoretical analysis of thermal performance in a plate type liquid heat exchanger using various nanofluids based on LiBr solution

Ham, Jeonggyun; Kim, Jinhyun; Cho, Honghyun

doi:10.1016/j.applthermaleng.2016.07.196

Cited by 39 publications

(10 citation statements)

References 36 publications

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“…The apparatus used during the test and their measurement accuracies are listed in Table 2. Five k-type thermocouples were used to monitor temperatures at the inlet of the tank (11), in the tank (10), at the outlet of the tank (12), at the inlet (13) and outlet of the collector (9). All thermocouples were connected to the digital display temperature indicators to monitor and record the temperatures.…”

Section: Methodsmentioning

confidence: 99%

“…The metallic nanoparticles are usually aluminium (Al), copper (Cu), and iron (Fe) while the metallic oxide nanoparticles are copper oxide (CuO), titanium dioxide (TiO2), alumina (Al2O3), titanium dioxide (TiO2) and silicon dioxide (SiO2). These nanofluids have been utilised in many research areas such as in heat exchanger system, microchannel/fin system of cooling electronic devices, machining process in the manufacturing system, cold storage system, and cooling system in the car radiator for the enhancement of the heat transfer process and the development of the nanofluids [5][6][7][8][9][10][11][12][13]. Also, these nanofluids can be utilised solar collectors to enhance the thermal performance of the solar collector [14].…”

Section: Introductionmentioning

confidence: 99%

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Optimum Utilisation of CuO Nanofluid in Flat Plate Solar Collector

Sint¹,

Choudhury²,

Masjuki³

2021

IJAME

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The optimum utilisation of CuO-nanofluid in flat plate solar collector has been investigated under Malaysian climatic condition. To determine the optimum nanoparticle concentration required in the base fluid, a simulation was carried out using MATLAB program. From the simulation, it was found that, 0.5 vol.% of CuO nanoparticles in the base fluid yielded maximum collector efficiency. The test was conducted over six months following the ASHRAE standard with nanofluid in the flat plate collector to ascertain its efficiency. The maximum average solar radiation incident on the collector, collector outlet and ambient temperatures were observed about 1000 W/m2, 50 ºC and 38 ºC respectively. From the efficiency curve, the absorbed and removed energy parameters were found to be 0.501 and 24.23 respectively. At a mass flow rate of one litre per minute, the maximum average instantaneous efficiency was 51%. The result of experimental efficiency was compared with the result of simulation and the efficiency values were within 4% of each other. CuO nanofluid base collector increases the efficiency compared to water as the collector fluid. The experimental results revealed that the efficiency of FPSC with CuO nanofluid was 4.78% higher than water base collector at the same mass flow rate of 1 L/min. The uncertainty analysis of result has shown that instantaneous efficiency uncertainty was about 3.3%. The simulation result has indeed minimised number of experiments required to determine the optimum concentration of nanofluid for maximum efficiency.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimum Utilisation of CuO Nanofluid in Flat Plate Solar Collector

Sint¹,

Choudhury²,

Masjuki³

2021

IJAME

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“…The performance evaluation of HE depends on the effectiveness [43] and variation in the effectiveness with the mass flow rate of coolant is shown in Fig. 6.…”

Section: Effect Of Structure and Working Fluid On Effectivenessmentioning

confidence: 99%

Numerical analysis of thermal performance of heat exchanger: Different plate structures and fluids

2022

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Due to compact size, high power density, low cost and short construction time, the Small Modular Reactors (SMRs) are considered as one of the candidate reactors, in which the power generation system is important with a compact heat exchanger for modular construction. Therefore, the effect of plate structure and nature of the working fluid on the thermal performance of Plate Heat Exchanger (PHE) are analyzed for the design of compact and efficient heat exchanger. The heat transfer rate, temperature counters, velocity vectors and pressure drop have been optimized and investigated using FLUENT. The Nusselt number has been calculated for the corrugated and flat PHE to validate the convective heat transfer. The numerical results are agreed well with correlation within deviation of ~ 5-7%. The performance of heat exchanger can be improved by controlling the mass flow rate and temperature of working fluid. The corrugation PHE increases the heat transfer rate 20 % and effectiveness 23 %, respectively, as compare to flat PHE when the working fluid is water. In the case of air, heat transfer rate and effectiveness are about 10 % and 9 %, respectively. The results show that the corrugated PHE is more effective than the flat PHE because corrugation pattern enhances the turbulence of fluids, which further increase heat transfer rate and coefficient. The selection of the working fluid and structure of the plate must be considered carefully for efficient and compact design of heat exchanger.

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“…The results demonstrate that the best thermal performance amongst these concentrations occurs when φ = 1 %, which indicates an optimum concentration. In addition to the concentration, the comparison of thermal and hydraulic performance among different types of nanofluids is another topic of interest [115,116,122,125,127,129,134] aiming to define the optimum particle type. Abed et al [116] investigated numerically the effects of four different types of nanoparticles (Al2O3, CuO, SiO2 and ZnO) on a fully developed turbulent flow in a PHE.…”

Section: Single-phase Heat Transfermentioning

confidence: 99%

“…As a result, several studies found different optimum nanoparticles, e.g. CuO by Abed et al [116], CeO2 by Tawari et al [125] and Al2O3 and TiO2 by Ham et al [134].…”

Section: Nanofluidsmentioning

confidence: 99%

A review of heat transfer enhancement techniques in plate heat exchangers

Zhang

Zhu

Mondéjar

et al. 2019

Renewable and Sustainable Energy Reviews

222

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Theoretical analysis of thermal performance in a plate type liquid heat exchanger using various nanofluids based on LiBr solution

Cited by 39 publications

References 36 publications

Optimum Utilisation of CuO Nanofluid in Flat Plate Solar Collector

Optimum Utilisation of CuO Nanofluid in Flat Plate Solar Collector

Numerical analysis of thermal performance of heat exchanger: Different plate structures and fluids

A review of heat transfer enhancement techniques in plate heat exchangers

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