Photovoltaic/thermal collector performance optimization method based on thermodynamic model

A thermodynamic model and optimization method technology, applied in design optimization/simulation, special data processing applications, computer-aided design, etc., can solve the multi-factor interaction of collector system operation economy, safety decline, and collector operation performance issues such as impact, increased difficulty of analysis, and cost

Pending Publication Date: 2020-09-11
HANGZHOU BOILER GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are the following defects in the optimization of collectors: (1) Most studies usually only analyze a single influencing factor, which increases the difficulty of analysis and (2) The operating performance of the collector is affected by the interaction of multiple factors, and it is difficult to obtain a comprehensive and reasonable optimization result with a single-factor analysis method, which ultimately reduces the operating economy and safety of the collector system

Method used

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  • Photovoltaic/thermal collector performance optimization method based on thermodynamic model
  • Photovoltaic/thermal collector performance optimization method based on thermodynamic model
  • Photovoltaic/thermal collector performance optimization method based on thermodynamic model

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Embodiment Construction

[0050] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0051] A method for constructing a thermodynamic model of a photovoltaic / thermal collector, such as figure 1 and figure 2 shown, including the following steps:

[0052] 1. Use MATLAB software to establish a thermodynamic model.

[0053] 2. Divide the thermodynamic model into eight layers, from top to bottom: the glass layer, the first EVA layer, the battery sheet, the second EVA layer, the backplane layer, the PCM layer, the air layer, and the insulation layer. figure 1 middle convective heat transfer between the glass layer and the environment, conduct heat for the glass layer and the first EVA layer, To conduct heat between the battery sheet and the second EVA layer, Heat conduction for the backplane layer and the PCM layer, For convective heat transfer between the insulation layer and the environment, is the heat absorption of the air...

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Abstract

The invention discloses a photovoltaic / thermal collector performance optimization method. The method comprises the following steps that S1, parameters of a photovoltaic / thermal collector are collected; S2, the parameters into a photovoltaic / thermal collector thermodynamic model is inputted in software; S3, the thermal performance, the electrical performance and the comprehensive performance of thephotovoltaic / thermal collector are calculated through the thermodynamic model of the photovoltaic / thermal collector; S4, the parameters are changed in the step S1 in MATLAB software, and correspondingly calculating the thermal performance, the electrical performance and the comprehensive performance of the photovoltaic / thermal collector; and S5, an oscillogram is generated by MATLAB software according to the parameter change in the step S4 and the corresponding calculation result, optimizing according to the oscillogram pair, and outputting an optimization result. The electrical efficiency ofthe photovoltaic / thermal collector can be improved, so that the performance of supplying power to a boiler is improved, the method is suitable for analysis of the collector under different working conditions and complex environmental conditions, and the analysis efficiency and economy are improved.

Description

technical field [0001] The invention belongs to the field of solar energy application technology optimization, and in particular relates to a method for optimizing the performance of a photovoltaic / thermal heat collector based on a thermodynamic model. Background technique [0002] Solar photovoltaic / thermal (PV / T) comprehensive utilization system is a high-efficiency solar energy utilization technology that can obtain high-grade electric energy and thermal energy at the same time. The system combines photovoltaic and photothermal. The photovoltaic part uses solar energy to generate electricity, and the photothermal part collects the energy that is difficult to convert by photovoltaic cells in the form of thermal energy, and provides thermal energy while improving the power generation efficiency of photovoltaic cells. The heat collector is the core component of the PV / T system to realize the comprehensive utilization of photovoltaic / heat, and its performance determines the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/08
CPCG06F30/20G06F2119/08
Inventor 杨琦童水光童哲铭宣婷唐宁何俊楠陈皓陆成
Owner HANGZHOU BOILER GRP CO LTD
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