scholarly journals A Simulation Study of Domestic Hot Water for Flat Plate Solar Collector Using Transient System Simulation Software (TRNSYS)

2020 ◽  
Vol 10 (3) ◽  
pp. 13381-13392
Author(s):  
Mohd Afzanizam Mohd Rosli et al., Mohd Afzanizam Mohd Rosli et al., ◽  
Keyword(s):  
Flat Plate ◽  
Simulation Study ◽  
Solar Collector ◽  
System Simulation ◽  
Simulation Software ◽  
Hot Water ◽  
Domestic Hot Water ◽  
Transient System ◽  
Flat Plate Solar Collector

scholarly journals Aplicaciones del Captador Solar de Placa Plana y del Captador de Tubo de Vacío en la Edificación = Applications of the Flat Plate Solar Collectors and the Vacuum Tube Solar Collectors in Building

2018 ◽  
Vol 4 (3) ◽  
pp. 25 ◽  
Author(s):  
Daniel Ferrández ◽  
Carlos Moron ◽  
Jorge Pablo Díaz ◽  
Pablo Saiz
Keyword(s):  
Flat Plate ◽  
Solar Collector ◽  
Energy Demand ◽  
Hot Water ◽  
Solar Thermal ◽  
Solar Collectors ◽  
Thermal Systems ◽  
Vacuum Tube ◽  
Solar Thermal Collectors ◽  
Flat Plate Solar Collector

ResumenEl actual Código Técnico de la Edificación (CTE) pone de manifiesto la necesidad de cubrir parte de la demanda energética requerida para el abastecimiento de agua caliente sanitaria y climatización de piscinas cubiertas mediante sistemas de aprovechamiento de la energía solar térmica. En este artículo se presenta una comparativa entre las dos principales tipologías de captadores solares térmicos que existen en el mercado: el captador de placa plana y el captador de tubo de vacío, atendiendo a criterios de fracción solar, diseño e integración arquitectónica. Todo ello a fin de discernir en qué circunstancias es más favorable el uso de uno u otro sistema, comparando los resultados obtenidos mediante programas de simulación con la toma de medidas in situ.AbstractThe current Technical Building Code (CTE) highlights the need to cover part of the energy demand required for the supply of hot water and heating of indoor swimming pools using solar thermal systems. This article presents a comparison between the two main types of solar thermal collectors that exist in the market: the flat plate solar collector and the vacuum tube solar collector, according to criteria of solar fraction, design and architectural integration. All of this in order to discern in what circumstances the use of one or the other system is more favourable, comparing the results obtained through simulation programs with the taking of measurements in situ.

Design, Implementation, and Evaluation of Thermal Performance of a Thermosiphon Flat-Plate Solar Collector for Water Heating in Ecuadorian Coastal Region

2017 ◽  
Author(s):  
Carola Sánchez ◽  
José Macías ◽  
Jonathan León ◽  
Geancarlos Zamora ◽  
Guillermo Soriano
Keyword(s):  
Flat Plate ◽  
Thermal Performance ◽  
Solar Collector ◽  
Storage Tank ◽  
Hot Water ◽  
Attractive Alternative ◽  
Local Market ◽  
Water Heating ◽  
Water Storage Tank ◽  
Flat Plate Solar Collector

Passive solar water heating (SWH) is a convenient method to meet domestic hot water requirements in rural areas, where electricity may not be available or fuel supply might be limited due to difficult access. In this work, a low-cost thermosiphon flat-plate solar collector alternative is presented. The design was purposely limited to materials and recyclable products widely available in the local market, such as Tetra Pak, plastic bottles, and polypropylene (PP) fittings and pipes. Since PP is a thermoplastic polymer, a poor heat conductor, it was necessary to ensure a suitable system isolation to obtain an optimum thermal performance, comparable to commercial solar collectors. The design was built and tested in Guayaquil, Ecuadorian coastal city. Six inexpensive temperature sensors were placed at the entrance and exit of the collector, on the flat-plate and inside the hot water storage tank. Data was recorded using an Arduino single-board computer and later analyzed with the data gathered via weather station. The implementation costs of the system are approximately US$300, the overall performance during January 2017 fluctuated between 54% and 23%, and the storage tank temperature range varied from to 46°C to 33°C. Due to its reliability and affordable cost, the SWH system is an attractive alternative to an Ecuadorian commercial solar flat plate collector, which price is set between US$600 and US$700, it has an efficiency around 60%, and the average annual storage tank temperature is 62°C.

Modelling of a Small Solar Collector Array and Comparison with Meteorological Data Using TRNSYS Energy Simulation Software

2014 ◽  
Vol 1041 ◽  
pp. 109-112
Author(s):  
Karolína Vyhlídalová ◽  
Petr Horák
Keyword(s):  
Solar Collector ◽  
Meteorological Data ◽  
System Simulation ◽  
Simulation Software ◽  
Meteorological Station ◽  
Energy Simulation ◽  
Solar Array ◽  
Simulation Tool ◽  
Different Types ◽  
Transient System

This article deals with the modelling of a small domestic solar collector array using Transient System Simulation Tool. The model was developed using meteorological data included as part of the Transient System Simulation Tool , mean regional data and actual meteorological data collected near the site of the solar array during testing. The main aim of this study was to compare the results of model simulations using the different types of meteorological data. The most accurate simulation was that prepared using meteorological data collected near the site of the solar array. Even here, however, differences were observed due to the equipment used to monitor heat gain, that is earlier insolation of the meteorological station.

Gas radiative effects on gas-filled flat plate solar collectors

2019 ◽  
Vol 97 (10) ◽  
pp. 1115-1124 ◽  
Author(s):  
Khosro Lari ◽  
Ali Tarokh ◽  
Mohammad Naghizadeh
Keyword(s):  
Heat Transfer ◽  
Flat Plate ◽  
Air Temperature ◽  
Solar Collector ◽  
Hot Water ◽  
Discrete Ordinates ◽  
Solar Collectors ◽  
Radiative Effects ◽  
Wide Range ◽  
Flat Plate Solar Collector

A standard thermal solar collector can be used for both hot water production and air heating purposes. Gas-filled solar collectors represent a new emerging design approach with enhanced characteristics. In this research, numerical modeling is utilized to study radiative effects of the participating gases on the performance of solar collectors. The coupled radiative–convective heat transfer in the solar collector is considered and the collector cavity is considered as a radiatively participating medium. The finite volume method has been adopted to solve the governing equations and discrete ordinates method is used for radiative transfer. After validating the model used in this study, it is used to obtain the heat transfer characteristics of a flat-plate solar collector with real solar conditions of the city of Kerman, Iran, in summer at a wide range of air absorption coefficients. According to the results, by increasing the absorption coefficient of the air, the temperature of the absorber plate is reduced and the air temperature is increased, but the increase of air temperature is much higher than the reduction of absorber temperature. Hence, it is concluded that it is possible to use participating gases in the solar air heaters to enhance the performance of the collector.

scholarly journals Design and Performance Evaluation of a Multi-Temperature Flat Plate Solar Collector

2021 ◽  
Vol 10 (3) ◽  
pp. 537-539
Author(s):  
Selfa Johnson Zwalnan ◽  
Gideon Ayuba Duvuna ◽  
Yousif Abdalla Abakr ◽  
Tiyamike Banda
Keyword(s):  
Flat Plate ◽  
Solar Collector ◽  
Hot Water ◽  
Percentage Error ◽  
Average Percentage ◽  
Load Demand ◽  
Different Temperatures ◽  
And Performance ◽  
Flat Plate Solar Collector ◽  
Average Percentage Error

The standard flat-plate solar collector utilises a single copper tube to remove the absorber plate’s heat. This type of collector’s primary purpose is to provide hot water for a single application. Hot water can be required for different applications at different temperatures. Besides, using the standard collector’s configuration may increase thermal demand and increase the collector’s size. Therefore, this study proposes a novel solar water heating configuration that uses three in-line fluid passages. The goal is to design a single collector that provides hot water for various uses: Sterilisation, washing, and postnatal care. Thus, the proposed system was modelled, and a numerical simulation conducted. This analysis compares the proposed system’s output and the standard collector’s output. The results showed that the thermal load demand was reduced by 27% when the hot water demand for these services was generated using three separate tanks. The serpentine collector’s efficiency with three fluid passages is increased by 20% compared to the traditional serpentine collector. The thermal energy delivered to meet load was 30% higher than that of the traditional serpentine system. The experimental and simulated system performance is in near agreement with an average percentage error Cv(RMSE) of 8.75% and confidence level NSE of about 87%. Since the proposed serpentine collector has a higher overall thermal production, it is recommended for use with hot water, which has to be heated to different temperatures.

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