Two Dimension Numerical Modeling of Receiver Tube Performance for Concentrated Solar Power Plant

Ahmed, Mohamed H.

doi:10.1016/j.egypro.2014.10.209

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…2. The energy transferred by conduction, radiation and convection from the absorber tube to the glass cover and the heat transfer fluid HTF was also simulated using the energy balance equations for each of the steel tube, glass cover and the HTF [16]. The model simulate the heat losses from the absorber tube to the glass cover by radiation and convection methods also simulate the heat losses by conduction through the glass cover from the inner to the outer surface.…”

Section: A Modeling Of Ptcmentioning

confidence: 99%

Multi applications of small scale solar power plant using organic rankine cycle and absorption chiller

Ahmed

Rady

Amin

2014

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)

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This paper presents a numerical simulation for the performance of solar thermal power plant consists of 190 m 2 of concentrated parabolic trough collector (PTC) with a storage tank and an Organic Rankine Cycle (ORC). The numerical model simulates the effect of the operating and meteorological parameters of Northern Egypt area on the total performance of each component of the plant. A study of the operating parameters of the PTC performance was also presented in this paper. The plant uses the Therminol-VP1 as a storage media and also as a heat transfer fluid with flow rate ranges from 0.9 to 1.8 kg/s for the solar collectors. It's used also as a heat source for the ORC and the absorption chiller with a flow rate range from 0.3 to 0.9 kg/s. This paper presents four operating modes for the plant which are electric generation, cooling, heating and electric generation with heating modes. The model studies also the effect of these operating modes on the plant performance. The simulation model proves that the PTC produces a maximum thermal power of about 70 and 115 KW in winter and summer respectively. It proved also that the designed plant collect thermal energy ranges from 640 KWh to 1186 KWh during the first six months from Jan to Jun, respectively. The plant can produce also daily electric energy range from 69 -85.5 KWh during the same period.

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Section: A Modeling Of Ptcmentioning

confidence: 99%

Multi applications of small scale solar power plant using organic rankine cycle and absorption chiller

Ahmed

Rady

Amin

2014

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)

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“…The optical performance analysis on PTC by Jebasingh et al [43] showed that the optical efficiency should be optimized to withstand against environmental conditions, many optical factors have been studied to improve the heating conditions of the absorber tube [44]. To reduce the temperature gradient of the absorber tube, scholars also have conducted many studies on certain specific heat transfer processes in PTR technology [45][46][47]. A new type of perforated plate inserts was proposed for use in parabolic trough collector, and the thermodynamic performance of the system was simulated [48].…”

Section: Introductionmentioning

confidence: 99%

Analysis of heat transfer performance of the absorber tube with convergent-divergent structure for parabolic trough collector

XUYI

Wang

XUHANG

et al. 2021

Journal of Thermal Engineering

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In order to effectually improve the performance of parabolic trough solar collector system and homogenize the temperature distribution on the absorber tube, an innovative convergentdivergent tube was designed as the absorber tube of PTR. The finite volume method (FVM) and the Monte Carlo ray tracing method (MCRT) are combined to simulate the heat transfer process in parabolic trough collector. The average relative error between the numerical results and the experimental results conducted in the Spanish DISS test facility is 1.103%, which confirms the reliability of the simulation results in this paper. The heat transfer characteristics and flow characteristics of PTR and convergent-divergent PTR are compared in the inlet velocity range of 0.05-0.75m/s, and the effect of the number of zoom sections(N) for CD-PTR performance is also studied. The simulation results show that the parabolic trough collector with convergent-divergent tube has significantly enhanced heat transfer capability. The average Nu of CD-PTR increases as the number of zoom sections increases, and is always higher than that of PTR. When Re=86400 and N=25, the average Nu increased by 66%.

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“…The model has been based on the absorber tube wall temperature instead of fluid bulk temperature. The effect of the annular pressure between the absorber tube and the glass cover of the receiver tube on the tube performance was investigated by Ahmed [15]. The investigating included the amount of energy gained, the temperature rise of the heat transfer fluid (HTF), energy losses and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling for the Thermal Performance of a Solar Parabolic Trough Concentrator (PTC) Under Egypt Climate

Ahmed¹,

Giaconia²,

Amin³

2018

IJTEE

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In this work, an analysis of the annual performance of a parabolic trough concentrator has been accomplished. A numerical model was developed and built to study the annual performance of the parabolic trough collector's field at different locations in Egypt. The energy equations were solved using the Engineering Equation Solver EES software. The optical and thermal parameters of the concentrator were considered in the model. The numerical model results showed that temperature rise ranges from 90.5 to 221 °C and the outlet temperate ranges from 442 to 565 ºC at solar noon according to the season and the location. The operating period of the parabolic concentrator reaches its maximum value at summer where it ranges from 76.5 to 82 h/week. The present model was validated with the TRNSYS model. As a result, the presented model can be considered as a meaningful tool for developing the parabolic trough plant in Egypt.

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Two Dimension Numerical Modeling of Receiver Tube Performance for Concentrated Solar Power Plant

Cited by 7 publications

References 8 publications

Multi applications of small scale solar power plant using organic rankine cycle and absorption chiller

Multi applications of small scale solar power plant using organic rankine cycle and absorption chiller

Analysis of heat transfer performance of the absorber tube with convergent-divergent structure for parabolic trough collector

Mathematical Modelling for the Thermal Performance of a Solar Parabolic Trough Concentrator (PTC) Under Egypt Climate

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