Renewable process heat from solar thermal and photovoltaics: The development and application of a universal methodology to determine the more economical technology

Meyers, Steven P.; Schmitt, Bastian; Vajen, Klaus

doi:10.1016/j.apenergy.2017.12.064

Cited by 20 publications

(9 citation statements)

References 59 publications

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“…However, they noted the much greater flexibility of PV + P2H for multi-scale district heating systems. Similar results were also obtained by Meyers et al [37] finding that at the prices of the time, ST are much cheaper in most regions. To now, however, no comparison has been made between the installation of PV panels with the electrode boiler and the solar thermal farm used to charge the PTES heat storage, which is the emphasis of this paper.…”

Section: Resultssupporting

confidence: 88%

Solar Heating for Pit Thermal Energy Storage – Comparison of Solar Thermal and Photovoltaic Systems in TRNSYS 18

Słomczyńska¹,

Mirek²,

Panowski³

2022

Adv. Sci. Technol. Res. J.

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Solar collectors and photovoltaic panels are devices widely used for heating water for both heating and domestic purposes. Due to the variable nature of solar radiation, it is advisable to include in solar energy-based systems thermal storages that accumulate energy at times of overproduction and discharge it at times of demand. In this paper, we present the results of simulation research to compare the possibility of two different charging systems for a 24000 m 3 seasonal pit thermal energy storage. The first uses electricity generated by photovoltaic panels and converted to heat in an electrode boiler to charge the heat store. The second is utilising a solar collector for this purpose. Based on the simulation calculations carried out in TRNSYS 18, it can be concluded that, from an investment perspective, a system based on solar collectors is more cost-effective. In addition, the installation takes up less space compared to a photovoltaic panel farm.

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Section: Resultssupporting

confidence: 88%

Solar Heating for Pit Thermal Energy Storage – Comparison of Solar Thermal and Photovoltaic Systems in TRNSYS 18

Słomczyńska¹,

Mirek²,

Panowski³

2022

Adv. Sci. Technol. Res. J.

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“…Meyers et al [31] showed that photovoltaic energy can produce thermal energy at competitive costs by heating electric resistance; this evidently supports our research into this specific use of photovoltaic power. In addition to that, Mousa et al [14] highlighted that solar photovoltaic energy can be used for generating heat in industrial processes and can also meet their energy demand requirements, as Talbi et al [32] have demonstrated.…”

Section: Introductionsupporting

confidence: 84%

A Cost-Effective and Efficient Electronic Design for Photovoltaic Systems for Solar Hot Water Production

et al. 2021

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A significant percentage of energy consumption in buildings is to produce hot water. Photovoltaic solar heating can be considered a clean and renewable energy option—easy to install, silent, and without maintenance—to replace the consumption of fossil fuels used in this process. This paper presents a study that simulates the heating process using thermal electrical resistors powered by photovoltaic solar energy. For this purpose, a solar hot water installation has been set up. This installation consists of a water tank with an electric resistance connected to photovoltaic modules by means of a low-cost experimental electronic conversion system. This electronic system has been developed to avoid the need for inverters or batteries, typical of traditional photovoltaic solar installations. It is an isolated system since it is not connected to the power grid. The photovoltaic solar modules, the tank, and its heating resistance correspond to commercial models. This electronic system has a 95.06% yield, and it operates across the whole irradiance’s daily curve, having verified its operation over several months. Even though this is an experimental electronic device, it is financially viable as the cost of its components is below EUR 60 per kW peak capacity. The results obtained in a proper functioning system are promising, demonstrating the technical feasibility and economic advantages of using this type of isolated photovoltaic system to power heating processes.

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“…In response to the growing need for renewable energy solutions, SHIP systems have emerged as a highly promising option for fulfilling a part of the industrial heat demand [21]. Solar heating technologies have shown notable economic competitiveness, especially in regions with high solar irradiation levels, when compared to fossil fuel alternatives [22][23][24][25]. Notably, in 2021, the number of SHIP plants experienced a significant increase of approximately 9% [21].…”

Section: Introductionmentioning

confidence: 99%

“…Although photovoltaic (PV) systems are widely used in electricity generation, it is important to note that their energy conversion efficiency is lower than that of solar thermal technologies. Additionally, depending on various factors, such as operating conditions and technology, PV systems might need more than three times the area occupied by solar thermal (ST) systems to generate an equivalent amount of energy [24][25][26][27]. These specific factors pose challenges, limiting the widespread application of PV systems in industrial heating contexts.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design and Parameter Estimation for Small Solar Heating and Cooling Systems

Yoo

2023

Sustainability

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The use of solar heating and cooling systems has evolved from being limited to heating and hot water systems in the past to an increasing application in cooling systems. Furthermore, the efficiency optimization of solar heating and cooling systems is crucial in their design and control. This study aimed to enhance the overall efficiency of a solar heating and cooling system through simulations based on optimal design parameters. Additionally, simulations were conducted to optimize the control system to improve the efficiency of the entire solar heating and cooling system. The framework for control optimization can be summarized as follows: (1) modeling the components of the solar heating and cooling system using the Modelica language; (2) establishing baseline efficiencies for the solar heating and cooling system throughout the year; and (3) implementing a control logic, such as Fuzzy or proportional-integral-derivative (PID), within the system components. The resulting optimal control strategy for the solar heating and cooling system led to a maximum increase in the overall system efficiency of approximately 12% during a week of summer design days, reducing the energy consumption from 696.89 kWh to 556.12 kWh. This demonstrates that the developed parameters and control logic improved the overall system performance and achieved efficiency optimization.

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Renewable process heat from solar thermal and photovoltaics: The development and application of a universal methodology to determine the more economical technology

Cited by 20 publications

References 59 publications

Solar Heating for Pit Thermal Energy Storage – Comparison of Solar Thermal and Photovoltaic Systems in TRNSYS 18

Solar Heating for Pit Thermal Energy Storage – Comparison of Solar Thermal and Photovoltaic Systems in TRNSYS 18

A Cost-Effective and Efficient Electronic Design for Photovoltaic Systems for Solar Hot Water Production

Optimal Design and Parameter Estimation for Small Solar Heating and Cooling Systems

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