Heat transfer within linear Fresnel unit using parabolic reflector

Ebrahimpour, Z.; Farshad, Seyyed Ali; Sheikholeslami, M.

doi:10.1108/hff-05-2021-0338

Cited by 6 publications

(5 citation statements)

References 34 publications

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“…(2) Complete the installation and construction of the motor and controller and the test stand: all mechanical parts should be installed and fixed tightly, firmly and without looseness, to ensure that the prototype and instruments are placed smoothly and neatly, and the two sets of motors need to ensure sufficient concentricity; the connection of high-voltage cables and low-voltage harnesses should be tight and without looseness, and the connection should be well insulated, and the wiring should be checked for correct connection after completion; the connection of water pipes should be tight and without looseness, and the wiring should be checked for correct connection after completion. The connection of water pipes should be tight and free from looseness, and the wiring should be checked for correct line connection after completion, and the water should be run for a test run to check for leaks [17][18].…”

Section: Methodsmentioning

confidence: 99%

Design of an All-electric Bus Cooling System Incorporating Computational Fluid Dynamics

2022

KME

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With the emphasis on renewable energy and environmental protection, new energy vehicles are gradually entering the social space and electric vehicles are once again moving to new heights. The aim of this paper is to investigate the design of a cooling system for a purely electric bus incorporating computational fluid dynamics. This paper follows the principle of "determine the heat source distribution of the prototype -calculate the temperature rise of the prototype -design an optimised cooling structure -analyse the cooling effect -propose the design of the prototype cooling structure". This paper studies the temperature rise and cooling of the prototype, focusing on the effect of different cooling structures on the temperature rise of the prototype. Based on the heat transfer, a finite element model of the engine is established and the losses and heat source distribution of the prototype are calculated by combining empirical equations and MAP diagrams of the engine losses. The heat transfer process of the engine is investigated, including the heat transfer process within and between the components of the prototype in contact with each other, and the convective heat transfer process between the prototype and the fluid contact surface. Based on the CFD (Computational Fluid Dynamics) method, the flow and temperature fields of the physical air-cooled prototype are calculated using the existing CFD mathematical model, and the influence of the flow field of the prototype heat exchanger ventilation duct on the engine temperature rise is analysed. A forced air cooling solution for the prototype was proposed to determine the structure of the vents, the location of the ventilation holes and the size of the cooling fan. The effect of forced air cooling on the temperature rise of the prototype is compared with the effect of natural air cooling. A parallel water jacket should be designed and its structure optimised in order to compare the effect of the water jacket on the temperature rise of the prototype before and after optimisation. Finally, all studies are combined to provide reference recommendations for the design of the prototype cooling structure.

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Section: Methodsmentioning

confidence: 99%

Design of an All-electric Bus Cooling System Incorporating Computational Fluid Dynamics

2022

KME

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“…(4) Compound solar cells Compound solar cells are solar cells made of multiple elements doped with semiconductors. At present, compound solar cells have not been able to achieve large-scale industrialization, mainly because: the efficiency improvement is not significant, the material contains highly toxic, high material costs, the production process is cumbersome [13]. Therefore, compound solar cells are still in the stage of research and development testing.…”

Section: Solar Panel Classificationmentioning

confidence: 99%

A Solar Panel Classification System Incorporating Finite Difference Method

2022

KME

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At present, some manufacturers still use the human eye to detect the color and defects of classified solar panels. Due to the easy fatigue of human eye, it is easy to cause misjudgment, which eventually affects the quality of solar panels. In order to solve the shortcomings of the existing solar panel classification research, this paper briefly discusses the data collection and development environment of the classification system based on the discussion of solar panel types and the stability conditions of the finite difference method solution. And the design of solar panel classification system by finite difference method is discussed, and finally the accuracy of finite difference method for solar panel polycrystalline hanging defects classification is compared with classification decision tree (DT), neural network (RNN) and SVM for experimental analysis. The experimental data show that the classification accuracy of finite difference method reaches the highest 91.7% and the lowest 89.8%. The classification accuracy of the other three methods was significantly lower than that of the finite difference method. Therefore, it is verified that the solar panel classification system incorporating the finite difference method has good performance results.

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“…The SDS is mostly applicable to some complex problems. The system simulation technology can be used to simulate the system according to the required information [15][16].…”

Section: System Dynamics Simulation (Sds)mentioning

confidence: 99%

Workshop Motion Simulation Based on Power Mechanical Engineering

2021

KME

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With the continuous growth of its high-tech and intelligent industries and the continuous improvement of its population quality, China has become the largest manufacturing country. However, while developing, we should also recognize that the changing situation is a challenge. In the current era of intelligent development, China's MME need to change flexibly according to their own enterprise development situation in order to maintain strong competitiveness, quickly adapt to market demand and accelerate their intelligent development. The main purpose of this paper is to study workshop motion simulation (WMS) based on power mechanical engineering. This paper analyzes the characteristics of mechanical manufacturing (MM) enterprises, analyzes the concept and construction steps of AHP, and studies the optimization strategy of equipment system. Experiments show that MME should focus on analyzing the use of equipment in the factory, improve the utilization rate of equipment within a reasonable range, control equipment failures and maintenance processes, reduce the corresponding failure maintenance time, and make full use of equipment and other resources to achieve the ultimate goal of improving production efficiency.

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Heat transfer within linear Fresnel unit using parabolic reflector

Cited by 6 publications

References 34 publications

Design of an All-electric Bus Cooling System Incorporating Computational Fluid Dynamics

Design of an All-electric Bus Cooling System Incorporating Computational Fluid Dynamics

A Solar Panel Classification System Incorporating Finite Difference Method

Workshop Motion Simulation Based on Power Mechanical Engineering

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