About common but avoidable faults during planning, installation, and operation of solar heating plants in industrial applications

Louvet, Yoann; Pag, Felix; Ritter, D.; Schmelzer, C.; Vajen, Klaus

doi:10.1016/j.seja.2022.100029

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…[ 40 ] In industry, SWH found numerous applications, including process water heating, air heating, and other heating systems. [ 41 ] The technology provides substantial benefits, notably energy savings and reduction of greenhouse gas emissions. Consequently, SWH has emerged as a popular choice in domestic and industrial settings, [ 42 ] especially in commercial sectors like hotels, restaurants, and public facilities that typically have larger hot water energy requirements than households.…”

Section: Introductionmentioning

confidence: 99%

Review on the Progress of Solar Water Heaters and Their Future Perspectives

2023

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A solar water heater (SWH) converts solar radiation into thermal energy for various purposes, and its technology has experienced numerous developments. Many studies have focused on developing, optimizing, and analyzing the technological configurations of SWH to improve its thermal efficiency, but they rarely achieve 80% efficiency. This review aims to provide a broad overview of SWH, including the energetic and exergetic approaches and analyses, technological development, and examines advantages, disadvantages, and further developments. Various collectors of the SWH and related studies are also highlighted, and the results identify the technical and policy challenges of the implementation. Suggested potential solutions to these challenges are presented with further directions. Furthermore, this study also discusses the limitations of the current SWH technology by presenting the specifications and characteristics. It also presents the mathematical equation model often used, the technology potential, and the results of the latest studies and developments regarding SWH technology. The prospects for further development of the most promising SWH should be analyzed.

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Section: Introductionmentioning

confidence: 99%

Review on the Progress of Solar Water Heaters and Their Future Perspectives

2023

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PaSTS An Operational Dataset for Domestic Solar Thermal Systems

Ebmeier,

Ludwig,

Martius

et al. 2024

The 15th ACM International Conference on Future and Sustainable Energy Systems

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The Influence of Storage Tank Volume on the Nighttime Heat Dissipation and Freezing Process of All-Glass Vacuum Tube Solar Water Heaters

Wang

Mao

et al. 2023

Energies

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The issue of freezing often occurs when using all-glass vacuum tube solar water heaters during cold winter seasons, leading to problems such as pipe ruptures and tank leakage. In order to further study the nocturnal heat dissipation and freezing characteristics of these heaters, a three-dimensional transient numerical model of their nocturnal heat dissipation was established. The model simulated the nocturnal heat dissipation process, and experimental validations were conducted through nocturnal temperature drops of the collector and temperature drops of individual tubes without a storage tank. Experimental and simulation results revealed that in clear weather conditions during cold winters in Luoyang, the all-glass vacuum tube solar water heaters experienced freezing issues during the night, with freezing predominantly starting from the bottom surface of the vacuum tubes. The frozen length along the tube wall and the thickness of ice at the bottom section reached up to 1180 mm and 5 mm, respectively. In the absence of a storage tank, the freezing situation was severe, with approximately 4/5 of the individual tubes completely frozen. Under specified operating conditions, different storage tank volumes exhibited varying degrees of freezing in the all-glass vacuum tube solar water heaters. When the volume was increased to 15 L, the temperature drop in the storage tank and the vacuum tubes decreased by 12.1% and 7.6%, respectively. Larger storage tank volumes resulted in reduced freezing risks in all-glass vacuum tube solar collectors. This study provides valuable guidance for the design and application of solar collectors and serves as a reference for the development and application of solar energy utilization technologies.

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About common but avoidable faults during planning, installation, and operation of solar heating plants in industrial applications

Cited by 3 publications

References 15 publications

Review on the Progress of Solar Water Heaters and Their Future Perspectives

Review on the Progress of Solar Water Heaters and Their Future Perspectives

PaSTS An Operational Dataset for Domestic Solar Thermal Systems

The Influence of Storage Tank Volume on the Nighttime Heat Dissipation and Freezing Process of All-Glass Vacuum Tube Solar Water Heaters

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