UPGRADING THE PERFORMANCE OF HEAT RECOVERY UNIT CONTAINING HEAT PIPES BY USING A HYBRID (CuO + ZnO)/WATER NANOFLUID

Sözen, Adnan; Martin, Kerim; Aytaç, İpek; Filiz, Çağdaş

doi:10.1615/heattransres.2020035393

Cited by 9 publications

(2 citation statements)

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“…Figure 1 give to variation of inlet and outlet temperatures of serpentine with time, according to the type of fluid used in the cooling circuit (Sözen et al, 2020). Mains water primarily used as the cooling fluid in the experiments carried out according to the values measured at certain times of the day.…”

Section: Resultsmentioning

confidence: 99%

Design and Optimization of PV/T Solar Collector System Suitable for Local Climate Conditions in Türkiye - İran

Rezaeizadeh,

Şahin,

Hançerlioğulları

2023

3rd International Congress on Engineering and Life Science Proceedings Book

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This study implements this concept by using a new roof-mounted PV multi-reflection panel, which not only increases the power output of the PV panel, but most importantly, the aesthetic aspect is a major barrier to large-scale uptake of PV/T. We developed it by considering the production planning of the industrial, expecting our model to determine each optimum production level. This model is based on a mixed binary-continuous linear optimization problem. The flow variables are continuous and the decision variables can be sales and purchases in the markets and gas purchases. We extracted the extra earnings and generate by comparing the situations that interact with the electricity markets and those that do not. In this study, it is aimed to develop an alternative system to the inefficient conventional building energy production and space heating systems, which are widely used in Türkiye, and to ensure that the developed technology has wide usage areas. The reason of rapid development of photovoltaic/thermal (PV/T) solar collector technologies, which are not yet known in the world and not used in R&D industrial applications, is to provide solutions to the industrial and social difficulties in the field of energy with Türkiye and İran, which has a close climate, by providing commercial value. In this way, it contributes to the industrial and economic development of both countries by creating new employment opportunities. Thus, private investment in innovative research in the field of solar and other renewable energy systems contribute to the reduction of carbon emissions by the two neighbouring powerful states and to the solution of problems related to energy security, climate change and increased energy consumption. In the study, more heat than heated PV panels using the high thermal conductivity of the fluids, which achieved 14% improvement in electricity production with the withdrawal of Fe2O4 nanofluid. Since the amount of heat absorbed in the thermal system is high, there is an increase in the average 10.4% temperature (∆T) hot fluid temperature compared to the base fluid water was obtained in Fe2O4 nanofluid. For this reason, it is to integrate a power-generating PV panel and a solar thermal heating panel within the same collection surface.

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Section: Resultsmentioning

confidence: 99%

Design and Optimization of PV/T Solar Collector System Suitable for Local Climate Conditions in Türkiye - İran

Rezaeizadeh,

Şahin,

Hançerlioğulları

2023

3rd International Congress on Engineering and Life Science Proceedings Book

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“…Bumataria et al 32 presented a nice survey on the use of hybrid nanofluids in heat pipes. Sözen et al 33 proposed the use of hybrid nanofluid loaded heat pipes to improve the efficiency of heat recovery systems. Bumataria et al 34 carried out an experimental study to investigate performance of mesh wicked cylindrical pipe with CuO-ZnO-H2O hybrid nanofluid at different pipe orientation angles and concluded the best performance of the pipe at 60 degree inclination from horizontal direction.…”

Section: Soft Computing and Statistical Approach For Sensitivity Anal...mentioning

confidence: 99%

Soft computing and statistical approach for sensitivity analysis of heat transfer through the hybrid nanoliquid film in rotating heat pipe

Uddin

Hassan

Harmand

et al. 2022

Sci Rep

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In this paper, the numerical solution for heat transfer through a rotating heat pipe is studied and a sensitivity analysis is presented by using statistical experimental design technique. Graphene oxide-molybdenum disulfide (GO-MoS2) hybrid nanofluid is taken as working fluid inside the pipe. The impact of the heat pipe parameters (rotation speed, initial mass, temperature difference) on the heat transfer and liquid film thickness is investigated. The mathematical model coupling the fluid mass flow rate and liquid film evolution equations in evaporator, adiabatic, and condenser zones of the heat pipe is constructed. The mathematical model is solved by implementation of “Particle Swarm Optimization” along with the finite difference method. The outcomes demonstrate that hybrid nanoparticles help to improve the heat transfer through the heat pipe and reduce liquid film thickness. The heat transfer rises with increasing temperature difference and reducing inlet mass, and it reduces slightly with rising rotation speed. The difference in liquid film thickness between the evaporator and condenser zones increases with increasing temperature difference and decreasing rotation speed. The impact of increasing the volume fraction of GO on the liquid film thickness is higher than that in the case of the MoS2 nanoparticles. However, an increase of the heat transfer is noticed in case of increasing the volume fraction of GO relative to increasing MoS2 concentration. Statistical analysis of the computed numerical data and the identification of significant parameters for total heat transfer are found using the response surface method. At 95% level of significance, the GO concentration in the hybrid nanofluid, inlet mass of the hybrid nanofluid and the temperature difference inside the evaporator zone of the pipe are found to be significant linear parameters for increasing heat transfer.

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Enhancement of thermal performance of a wickless gravity heat pipe with hybrid nanofluid including graphene and MgO nanoparticles: an experimental study

Martin

2022

J Braz. Soc. Mech. Sci. Eng.

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UPGRADING THE PERFORMANCE OF HEAT RECOVERY UNIT CONTAINING HEAT PIPES BY USING A HYBRID (CuO + ZnO)/WATER NANOFLUID

Cited by 9 publications

References 0 publications

Design and Optimization of PV/T Solar Collector System Suitable for Local Climate Conditions in Türkiye - İran

Design and Optimization of PV/T Solar Collector System Suitable for Local Climate Conditions in Türkiye - İran

Soft computing and statistical approach for sensitivity analysis of heat transfer through the hybrid nanoliquid film in rotating heat pipe

Enhancement of thermal performance of a wickless gravity heat pipe with hybrid nanofluid including graphene and MgO nanoparticles: an experimental study

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