Construção passo-a-passo do Aquecedor Solar de Baixo Custo (ASBC) – vídeo Tags: aquecedor de água, aquecedor solar, energia limpa, garrafa PET, meio . na Internet com um passo-a-passo para a produção e instalação.” Aquecedor Solar Composto de Embalagens Descartáveis – UOL Manual detalhado e ilustrado para se construir um aquecedor de água solar, usando garrafas pet e Manual Sobre a Construção e Instalação do Aquecedor Solar. Manual para fazer Aquecedor Solar Caseiro feito com Garrafa Pet. Glauco de .. Cabideiros – Envelhecimento de Madeira e Pátina – Passo a passo.
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Sistema solar para aquecimento ambiente e aquecimento de piscinas: Directory of Open Access Journals Sweden. Water heating solar system for popular houses; Sistema solar de aquecimento de agua para residencias populares.
Centro de Energias Renovaveis], e-mail: In this paper we present a case study for the design of a low cost solar heating system for a popular residence in an isolated rural community in the state of Rio Grande do Norte.
This scaling can be extended to several rural communities that are in the same situation in Brazil as well as the wider use of solar power between the low-income people who do not have the benefits of electricity in their homes or want to have a lower cost of electricity. In this context, there are very interesting alternatives, among which is the replacement of electric heating bath water by heating by solar energy.
According to several sources the electric shower, as it is now simple and extremely sloar, is the villain of the national electrical system. Using the heating by solar energy, we can reduce consumption of electric shower and also increase the use of clean energy in popular homes and in isolated rural communities.
This paper will address the use of solar energy with the basic purpose of heating water for bathing in popular residences and in isolated rural areas, using low cost systems, built with easily materials that is found in any area of the country. Dentre essas fontes, a energia solar destaca-se por ser perene e limpa. The awareness of the importance of ;et environment has stimulated the study of new renewed energy sources and less pollutant.
Amongst these sources, solar energy stands alone for being perennial and clean. The w of solar energy in systems of agricultural residential water heating, aquececor complement the economy of electric energy, base of the Brazilian energy matrix. Knowing the factors that influence the operation of a system of water heating by solar energy is important in determining their technical viabilities targeting their distribution in agricultural residences.
Sistema de aquecimento solar das piscinas da C. Prototype of a water heating system for low-income population using solar energy and power, with reuse of heatAbstractThis paper consists of a survey on the various means of heating water for the bath, trying to use of alternatives to allow access of the low-income population.
The main idea is to make a blend of various existing systems in order to produce an efficient and cost effective prototype. The prototype consists of aquecrdor system of solar heating, heat recovery and an automated water mixer.
The representation of the system was obtained through a model of the ecological prototype shower encompassing the several studied technologies. In the system proposed, which uses flat collectors, both natural and forced convection are responsible for the transfer of heat to the circulating water.
The automation of the system is performed by thermostats, placed in different places, electrically connected to other components like valves and a water pump.
The results of the experimental trials show that the system described is a viable option to eliminate pathogens present in irrigation water, while its low cost makes it attractive for use in nurseries, greenhouses and on small farms. Numerical model of simulation for solar collector of water heating; Modelo de simulaco numerica para colector solar de aquecimento de agua. Before being installed a solar heater, It must be tested, numerical or experimentally to get his characteristic equation, which is the efficiency curve, plotted as a function on the temperature of entry and solar incident radiation on the collector.
In this work was developed a tool for numerical simulation of heating water flat-plate solar collectors.
This tool has been developed from a mathematical model which is composed of a system of equations. In the model are included equations of balance energy for passso collector, equation of the first law, the law of cooling equation of Newton, convective heat transfer coefficient correlations, equations for calculating the solar incident radiation, and one equation that calculates of the water flow due to the siphon effect.
The solution of the aquecedo system was obtained by the multidimensional version of the Newton-Raphson method. The results shows, that it is a very interesting tool to simulate efficiency curve of the solar collector. A water heating system analysis for rural residences, using solar energy; Analise de um sistema de aquecimento de agua para residencias rurais, utilizando energia solar.
Programa de Pos-Graduacao em Engenharia Agricola], emails: To evaluate equipment of water heating for solar energy, a prototype was constructed in the campus of Assis Gurgacz College, in Cascavel,State of Parana, Brazil, with similar characteristics to equipment used in residences for two inhabitants, to function with natural circulation or thermo siphon and without help of a complementary padso system.
Thermal analysis of a solar collector consisting pef V cavities for water heating; Analise termica de um coletor solar composto de cavidades V para aquecimento de agua.
The solar water heating is carried through, in Brazil, by means of solar heaters compound for collectors flat plate of the type plate-and-pipes, devices that operate in pasos position and they do not require tracking of the sun.
A compound collector for some formed V-trough concentrators zolar be aquceedor alternative to the conventional solar collectors flat plate. This compound collector for V-trough is considered, each one, for side-walls which are specularly reflecting surfaces associates in V equivalent to a triangular gutter. Next to the vertex to each V-trough concentrators an absorber tube is fixed, for flow of the fluid to be heated.
Interconnection of the absorbers tubes forms a similar tubular network existing in solar collectors of the type the plate and pipe.
V-trough concentrators with the absorbers tubes are made use in series in the interior a prismatic box, which have one of its faces consisting by a glass covering and directed toward incidence of the solar radiation. An analysis of thermal performance of these devices operating stationary and without tracking of the sun is researched. A mathematical model for the computational simulation of the optical and thermal performance of these concentrative devices is elaborated, whose implementation was carried through software EES Engineering Equation Solver.
The efficiency optics of V-trough concentrators with solr absorbers is calculated garrxfa the adaptation of the methodology used for Fraidenraichproposal for Hollands for V-trough cavities with plain absorbers.
The thermal analysis of the considered collector was based on the applied methodology the CPC for Hsieh and Leao Relative results to the thermal performance of V-trough concentrators suggest that these configurations are not competitive, technique and economically, with the conventional plain collectors. Although some geometric configurations presented next thermal efficiencies to the conventional plain.
Solar energy for power generation and heating: In just one hour, Earth receive from the Sun, the equivalent of all current global energy consumption for a year. Yet, solar energy, by means of water heating systems and photovoltaic generation, contributes today for less than 0. This article analyse the state of the art of the technologies, their market potential, environmental impacts, interaction with the electric grids and expectations of expansion.
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Appropriate technology for solar energy system aiming water heating for human bath in houses of rural areas; Tecnologia apropriada para sistema de energia solar visando aquecimento de agua para o banho humano em moradias do meio rural. Faculdade de Engenharia Civil, Arquitetura e Urbanismo], e-mail: Nucleo Interdisciplinar de Planejamento Energetico], e-mail: The Brazilian land receives a great amount of solar radiation all over the year, ;asso, because both the culture and practical aspects, Brazilians use in a non-moderate way the electricity to boil the water for human bath in the rural homes, in the lower income residences even at part of the medium class homes.
In fact, that way of heating water is largely used because, besides the very soolar electrical shower price, it is not necessary to install a complete hot water both hydraulic and electrical building systems, but just both single hydraulic pipes sllar electrical devices.
On the other hands, at rural regions where the electricity does not achieve the rural people uses firewood in order to get hot water for human bath. At the rural places the use of electrical showers has meaning an increase in the electrical transformers powers, heavier electrical transmission rural lines, with greater prices and, at the urban zones, the use of electrical showers in the lower social classes has contributed to a more expressive electrical load at the nacional electrical system load peck, between 5: The public administration, mostly, does not take into account both social, economic and environmental costs in order to think about the electricity offer.
The solar heating systems, generally used in Brazil, conserves the same reservoirs used in France at Therefore, this paper presents some technical subsidies applied to rural homes, even to lower income people’s homes aiming to ;asso the Brazilian public authorities to make a public police to facilitate both the industrialization and dissemination of solar heating systems, appropriate to the rural area, with lower costs, compounded by good technology equipment, with guarantee of lasting and quality.
Optimization of a computer simulation code to analyse thermal systems for solar energy water heating; Aperfeicoamento de um programa de simulacao computacional para analise de sistemas termicos de aquecimento de agua por energia solar.
The potential of solar water heating systems through solar energy in Brazil is excellent due to the climatic features of the country. The performance of these systems is highly influenced also by the materials used to build it and by the dimension of its equipment and components. In face of global warming, solar energy gains more attention, since it is one of the renewable energy that will be largely used to replace some of the existing polluting types of energy.
This paper presents the improvement of a software that conducts simulations of water heating systems using solar energy in thermosyphon regime or forced circulation. TermoSim, as it is called, was initiated at the Solar Labs, and is in apsso version 3.
The current version is capable of simulating 6 different arrangements’ possibilities combined with auxiliary energy: The software is a tool to aid studies and analysis of solar heating systems, it has a friendly interface that is easy to comprehend and results are simple to use.
Besides that, this version also allows simulations that consider heat losses at night, situation in which a agrrafa circulation can occur and mean efficiency loss, depending on the simulated system type. There were many simulations with the mathematical models used and comparisons were made with the climatic data of the city of Caxias do Sul, in Rio Grande do Sul state, in Brazil, determining the system with the most efficient configuration for the simulated water consume profile.
The paper is finalized with simple economic analyses with the intention of foreseeing the time for payback on the investment, taking into account the current prices for electrical energy in the simulated area and the possible monthly economy provided with the use of a solar energy heating system.
Thermal study garrara a residential water solar heating ppet with two different absorbing surface configurations; Estudo termico de um sistema solar de aquecimento de agua residencial para duas configuracoes de superficie absorvedora.
A solar collector to be used in a system for heating water for bathing, whose main characteristics are its low cost and easy manufacturing and assembly is presented. The absorbing surface of the collector is formed by an aluminum plate with eight flaps where they lodge PVC pipes. The catchment area of solar radiation corresponds to 1. The collector box was made of wood, oet is covered by transparent glass and thermal insulation of tire chips and expanded polystyrene EPS.
Absorber tubes were connected in parallel through the use of PVC fittings and fixed to the plate by the use of metal poles and rivets. The entire absorber received paint fiat black for better absorption of sunlight. The system worked on a thermosyphon assembly and absorber of the collector has been tested in two configurations: The most efficient configuration for the connect purpose was determined.
The solar collector was connected to a thermal reservoir, also alternative, low-cost forming the system of solar water heating. We evaluated thermal parameters that proved the viability of the heating system studied. Solar heating of the produced water of petroleum; Aquecimento solar da agua produzida de petroleo. In this work, experimental data of solar heating for common water and saline solution were measured.
The solar heater is formed by a flat-plane collector and a thermal reservoir ‘boiler’.
The objective is to quantify the variation of fluids’ temperature, and correlate it to environment variables, especially solar irradiation. Thereby, it is possible to estimate the solar heating of produced water of petroleum.
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The solar heater is part of a system of treatment of produced water, and its function is to pre-heat the fluid that enters into the solar distiller, increasing the productivity of distilled water. A saline solution that represents produced water was used in the experiments, using sodium chloride ppm.
The experimental data demonstrates that the solar heater is capable to heat the fluid to temperatures close to 70 deg C, reaching temperatures close to 50 deg C even qauecedor cloudy days with garrafaa solar radiation.
Furthermore, the solar collector energy system provides a higher rate of heating and trough of the thermal reservoir the temperature can remain longer. These are important aspects to the integration with solar distillation.
Analysis of a solar water thermosyphon system; Analise do aquecimento solar padso agua por sistema a termosifao. A design methodology and to perform the simulation of flat plate solar collectors coupled with a water storage tank and operating by natural convection circulation is presented. For a given site the incident solar radiation on a tilted and previously oriented surface is determined from solar astronomy and the dally average of the monthly data of the horizontal total solar radiation.
Huancayo situated in Peru at An optimum tilt angle for a north oriented collector surface is obtained in order to have a maximum solar capture during the water. The theoretical methodology use here is based upon the ONG’s paperand in attrition is considered the hot water drainage due to the dally consumption.
For the sake of comparison, the calculated flowrate values are confronted with the experimental pzsso obtained by FERNANDEZ, for a same site location Rio de Janeiro and are used identical dimensions for the water thermosyphon heater.