Đánh giá hiệu suất của các tế bào quang điện bằng cách sử dụng ống nano carbon chức năng hóa và màng polyanilineĐÁNH GIÁ HIỆU SUẤT CỦA HỆ THỐNG SOLAR TRACKING TRỤC ĐƠN SỬ DỤNG QUANG TRỞ

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Tác giả: Văn Hoàng Phương, Nguyễn Bá Thành

Ngôn ngữ: vie; Vie

Ký hiệu phân loại: 530 Physics

Thông tin xuất bản: Nanoscience and nanotechnology, Tạp chí Khoa học - Đại học Thủ Dầu Một, 20152020

Mô tả vật lý: 1-4

Bộ sưu tập: Metadata

ID: 489464

Thêm vào giỏ

The use of polyaniline (PANI) and carbon nanotubes (CNTs) as photovoltaic materials has been presented in this paper. The promising properties of P ANI and CNTs have encouraged utilizing them in photovoltaic devices and studying their performance. The photovoltaic performance of PANI has been studied with and without CNTs. the authors found that there is a considerable increase in the short circuit current density from 3.49 to 8.86 mA cm-2 with the use of CNTs in the device and also an increase in power conversion efficiency. The incorporation of CNTs film had led to an efficient transport of photo-generated holes to the anode and suppressed the recombination of free charges generated, thus increasing the efficiency of the device. The performance of the device shows that the P ANI and CNTs can be effectively utilized as photovoltaic materials in a photovoltaic cell.Năng lượng mặt trời ngày càng được chú trọng khai thác, tuy nhiên một nhược điểm của năng lượng mặt trời là phụ thuộc vào thời gian, phụ thuộc vào đường đi của mặt trời so với trái đất. Do trái đất xoay quanh mặt trời nên hướng chiếu tia bức xạ thay đổi và năng lượng thu được theo đó cũng thay đổi. Bài báo này trình bày về thiết kế, thi công và phân tích hiệu suất của hệ thống solar tracking năng lượng mặt trời trục đơn (Single Axis Solar Tracking System). Hệ thống tracking năng lượng mặt trời sẽ tự động hướng theo vị trị của mặt trời để thu được tối đa cường độ ánh sáng phát xạ từ mặt trời. Khi mà cường độ ánh sáng đang giảm, hệ thống này tự động thay đổi hướng của nó để có được cường độ ánh sáng tối đa. Hai động cơ servo nhận tín hiệu từ bộ xử lý trung tâm sẽ xoay tấm pin mặt trời (solar panel) đến vị trí thích hợp để đạt hiệu suất tối ưu. Kết quả năng lượng thu được của hệ thống trục đơn tốt hơn 9.622% so sánh với hệ thống cố định. Kết quả của nghiên cứu này cung cấp một giải pháp tối ưu cho năng lượng mặt trời, giúp cải thiện hiệu quả của hệ thống năng lượng mặt trời, phục vụ hiệu quả cho quá trình sản xuất năng lượng., Tóm tắt tiếng anh, Solar energy is increasingly being exploited, but one drawback of solar energy is time-dependent, depending on the path of the sun compared to the earth. Because the earth revolves around the sun, the direction of the radiation beam changes and the energy that changes accordingly. This paper presents the design, construction and performance analysis of the Single Axis Solar Tracking System. The solar tracking system will automatically follow the sun's position to maximize the intensity of the light emitted from the sun. When the light intensity is decreasing, the system automatically changes its direction to get the maximum light intensity. Two servo motors that receive signals from the central processor will rotate the solar panel (solar panel) to the appropriate location for optimum performance. The energy result of single axis system is 9,622% better than that of fixed system. The results of this study provide an optimal solution for solar energy, helping to improve the efficiency of the solar system, effectively serving the energy production process.

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