Solar energy

This paper evaluates an energy harvesting strategy for UAVs from sunlight and laser beams on cloudy days with a low-level cloud layer. The channel models and harvested powers for both cases are considered and analyzed using mathematical equations and simulation results.

7p viengfa 28-10-2024 2 1   Download

This paper presents a technique for integrating battery energy storage systems (BESS) into a distribution network with penetration of wind and solar power in order to improve the operation efficiency of distribution networks, exploit renewable energy capability, and reduce operation issues.

12p viling 11-10-2024 0 0   Download

This article analyzes and evaluates the impact of the Yen Dinh solar power plant in Thanh Hoa, Vietnam when connected to the 22kV power grid such as: reverse power flow, overvoltage, influence of harmonics, changes operational methods for placing economic capacitors and coordinating protection when the plant is connected to the distribution grid are also calculated and analyzed.

8p viyoko 01-10-2024 3 1   Download

WO3/Ag3VO4 photocatalyst was synthesized for benefiting the visible region of solar spectrum for degradation of antibiotic pollutant. The prepared catalyst was characterized by using scanning electron microscope (SEM), X-ray diffraction (XRD), infrared spectroscopy (IR) and energy-dispersive X-ray spectroscopy (EDX).

6p vikwong 29-09-2024 2 1   Download

This study aims to improvise the method to calculate the amount of solar heat transferred through the windows which are shaded by continuous vertically slanted fins. The results of this study will be applied to the implementation of the Vietnamese national code QCVN 09:2017/BXD towards energy efficiency in buildings.

14p vifilm 24-09-2024 1 1   Download

The main objective of this research "Dynamic modelling of an aggregated solar-PV system for power system transient stability studies" is to develop an aggregated solar-PV model and critically analyse its performance under various operating conditions and faults.

104p runthenight04 02-02-2023 6 2   Download

The following boundaries are considered in pursuing the proposed research study: This study is conducted on an experimental basis; Domestic hot water supply using evacuated tube solar thermal collectors has been selected as the applied context for this study; Paraffin has been chosen to be used as a PCM for this study due to its attractive techno-economic properties for use with solar thermal systems in domestic hot water applications; The effect of scale factor is not studied; The effect of the shape of the PCM container is not investigated in this study.

102p runthenight04 02-02-2023 4 2   Download

This research aims to address these research gaps. Through the literature review, the most popular building PV applications in China are identified. Hence, five building PV scenarios are developed based on real-word cases, including BAPV, roof BIPV and window BIPV. Given the diverse geographic conditions and policy conditions in China, 12 typical cities are selected for the research. A MATLAB program is established to calculate energy generation and evaluate the economic performance of the building PV applications in the 12 cities.

186p runthenight04 02-02-2023 9 4   Download

In this article, looks at the teaching methods of a grade 12 project-based learning (PBL) physics course in solar energy as a part of a sustainable development (SD) curriculum. It was shown that discussions about solar cooking and natural resources projects put many important ideas into students’ heads indicating an effective improvement of PBL and education for SD in schools.

8p tamynhan8 04-11-2020 17 2   Download

Using agricultural waste is a good source of biomass for generating energy. A model analysis for a hybrid biomas-solar PV microgrid was carried out in this study.

9p lucastanguyen 01-06-2020 25 2   Download

In the present work, an attempt has been made to design and test the performance of box type solar cooker with cooking pots of different materials filled with latent heat energy storage mediums to perform the cooking in sun shine and off sun - shine conditions.

8p lucastanguyen 01-06-2020 8 1   Download

The challenge of climate change results primarily from the global use of fossil fuel. Renewable energy as alternative energy source allows the use of natural sources such as micro-hydro, wind; solar, and biomass that are sustainable to be explored.

9p lucastanguyen 01-06-2020 30 2   Download

Reduction of anthropogenic greenhouse gas emissions is advocated by the Intergovernmental Panel on Climate Change. To achieve this target, countries have opted for renewable energy sources, primarily wind and solar.

9p christabelhuynh 31-05-2020 14 1   Download

The use of solar energy has been adduced as an alternative way for generating electricity. This electricity is generated by solar panel but as temperature increases efficiency of panel decreases too. The main objective of this research paper is to minimize the use of the amount of water, electrical energy and required time needed for cooling of a solar panel.

12p tohitohi 19-05-2020 11 2   Download

Photosynthesis is able to convert solar energy into chemical energy in the form of biomass, but the efficiency of photosynthetic solar energy conversion is low. Chlorophyll fluorescence measurements are rapid, nondestructive, and can provide a wealth of information about the efficiencies of the photosynthetic light reaction processes.

19p vishikamaru2711 29-04-2020 13 1   Download

Solar energy technology is very important tool which can lowers worldwide carbon emissions. The present study was conducted in Jaipur district of Rajasthan. There are total sixteen tehsils in Jaipur district of Rajasthan, out of which, two tehsils namely Chomu and Amber were selected on the basis of maximum number of installed of solar pump. Ten villages from each selected tehsils were selected randomly by using proportional allocation technique. One hundred twenty (120) farmers were selected from twenty selected village by using proportional allocation technique.

4p caygaocaolon4 04-04-2020 11 2   Download

The aim of this thesis is to carry out a Potential Analysis and feasibility Evaluation of the further Introduction of Solar and Biomass Energy in South East Asia. This is serving the purpose of assisting the affected nations in South East Asia to tap into their abundantly available potential. Only if the right technologies are chosen and the right strategies pursued, the nations in South East Asia are able to direct their economic growth and the pairing energy hunger into a sustainable direction by drawing on the advantages of renewable energies.

253p nguyenyenyn117 14-06-2019 41 4   Download

Lưới điện thông minh là một hệ thống cho phép sử dụng lồng ghép các nguồn năng lượng tái tạo và nguồn nhiên liệu hóa thạch trong một lưới điện thống nhất, quản lý linh hoạt hệ thống điện và tự động duy trì sự cân bằng giữa cung và cầu năng lượng điện. Bài báo trình bày việc xây dựng mô hình điều khiển hệ thống lai năng lượng gió và mặt trời (Wind/Solar Energy system - W/S) trong lưới điện thông minh.

7p vision1234 21-06-2018 144 0   Download

Chemical doping nitrogen in to TiO2 crystal network by methods of sol-gel and impregnation was presented. The obtained nitrogen-doped TiO2 materials were characterized by different techniques such as XRD, SEM, UV-VIS. It was shown that samples have very uniform nano size, anatas structure and low level of band-gap energy (Ebg ~ 2.2 eV, ~ 500 - 600 nm). Their activity and kinetic were also studied and the results proved that in comparison with P25, the obtained nitrogen-doped TiO2 had higher activity and photo-quantum efficiency in organic disintegrated reaction under solar radiation.

6p uocvong01 24-09-2015 52 8   Download

Before we can talk about solar power, we need to talk about the sun • Need to know how much sunlight is available • Can predict where the sun is at any time • Insolation : incident solar radiation • Want to determine the average daily insolation at a site • Want to be able to chose effective locations and panel tilts of solar panels

152p tanthanh789 17-09-2013 67 14   Download