The comparison of solar installation heat gains and SHW simulation results – case study

Olczak, Piotr

doi:10.33223/epj/126981

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…An important disadvantage of using solar energy potential is that its absorption requires a large amount of space and favorable conditions [6]. The amount of solar radiation reaching the Earth's surface decreases with many factors, such as increasing cloudiness, as well as air contamination [7,8].…”

Section: Introductionmentioning

confidence: 99%

Designing for the Environment: An Example of Multi-Criteria Analysis Used for Solar Hot Water System Selection

Żelazna¹,

Gołębiowska²

2021

Energies

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In the European Union, the building sector accounts for more than 40% of final energy consumption, contributing to the deterioration of the quality of the environment. Among the various solutions that aim to reduce the negative environmental impact caused by the operation of buildings, solar hot water systems (SHW) are popular. The choice of a SHW system is associated with the comfort of use and the access to low-cost energy. The design guidelines include the technical parameters for system operation such as materials, dimensions, sizing and operation temperatures. However, the legitimacy of choosing a particular solution and the available technical parameters are key issues. In the presented study, a multi-criteria analysis was proposed as a basis for the proper selection of system parameters, e.g., collector type, solar tank volume. A model of the SHW system was used to calculate the possible solutions, ensuring the same comfort of usage for several design options. The analyzed model was then used for the calculation of three various indicators: Simple Payback Time (SPBT), Primary Energy consumption (PE) and IMPACT 2002+. The application of a multi-criteria analysis based on a Life Cycle Assessment allowed for beneficial solutions to be found from the point of view of economics, non-renewable resources and environmental protection.

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Section: Introductionmentioning

confidence: 99%

Designing for the Environment: An Example of Multi-Criteria Analysis Used for Solar Hot Water System Selection

Żelazna¹,

Gołębiowska²

2021

Energies

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A Review of Experimental and Numerical Analyses of Solar Thermal Walls

et al. 2023

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Nowadays, almost 30% of total energy consumption (130 EJ) is consumed for the operation of buildings, mainly by space heating/cooling and ventilation systems, hot water preparation systems, lighting, and other domestic appliances. To improve the energy efficiency of buildings, several countries are promoting the use of renewable energy. The most promising systems include active and passive solar installations. In passive systems, the solar energy is collected, stored, reflected, or distributed by the roof ponds, natural convective loops, and the most popular direct gain walls and thermal storage walls (known as Trombe walls). This paper reviews the experimental and numerical studies devoted to the different solutions of Trombe walls, including solar chimneys integrated on the vertical walls, classic Trombe walls, Trombe walls with incorporated phase change materials, and photovoltaic Trombe walls. The actual state of the art is presented in the context of reducing energy consumption and enhancing thermal comfort. Most of the analyzed studies showed that the application of thermal storage walls allowed achieving these goals, led to lower emissions of greenhouse gases, and improved living standards. Nevertheless, there is a need for more detailed feasibility studies, including cost and environmental indicators.

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The comparison of solar installation heat gains and SHW simulation results – case study

Cited by 2 publications

References 11 publications

Designing for the Environment: An Example of Multi-Criteria Analysis Used for Solar Hot Water System Selection

Designing for the Environment: An Example of Multi-Criteria Analysis Used for Solar Hot Water System Selection

A Review of Experimental and Numerical Analyses of Solar Thermal Walls

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