Simulation of solar water heating system

Gojak, Milan; Ljubinac, Filip; Banjac, Miloš

doi:10.5937/fmet1901001g

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…The analyzed system had 25 years lifespan and was built at a cost of 14,972.06 USD. Erge et al [81] studied different sizes (1,5,20, and 1000 kWp) of BIPVs in Germany (Fig. 25) and reported respective COE's of 0.87, 0.66, 0.56, and 0.49 USD/ kWh based on the energy output of 700 kWh/kWp, 25 years of working life, and 3% interest rate without tax.…”

Section: European Regionmentioning

confidence: 99%

“…It is a solid-state technology, does not having any moving part, emitting no harmful gases, requiring bare minimum maintenance, having almost no material depletion, being easy to install, and last but not the least producing energy silently. The solar energy applications, both photovoltaic and solar thermal include PV hybrid power systems [1], solar power in shipping [2], greenhouses and solar stills [3] and [4], solar water heating [5], solar chimney [6] and [7], solar concentrators [8], and solar hot water storage [9]. With all these advantages and wide range of applications, there is a consensus among experts and policymakers that PV systems, capable of providing power at the point of use, are on the road of widespread commercialization [10].…”

Section: Introductionmentioning

confidence: 99%

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A comprehensive global review of building integrated photovoltaic systems

Rehman¹,

Aliyu²,

Alhems³

et al. 2021

FME Transactions

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Saudi Arabia has embarked on diversification of its existing energy portfolio through rene wables, mainly solar photovoltaic and thermal, and wind power. This study presents an overview of how different areas around the world utilized building-integrated solar photovoltaic applications to recommend appropriate and suitable options for implementation in Saudi Arabia and the Middle East region. With this objective, the power utility will have three-fold benefits (i) clean and economic power arability for off-grid remotely located dwellings, (ii) cutting down the emissions of greenhouse gases, and (iii) conserving the fixed reserves of fossil fuels, which are being used mainly for power production around the world. The study shows that building-integrated applications are most common in Asian and European countries. Moreover, it is observed that monocrystalline and polycrystalline photovoltaic materials are both technologically and economically suitable for such applications.

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Section: European Regionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A comprehensive global review of building integrated photovoltaic systems

Rehman¹,

Aliyu²,

Alhems³

et al. 2021

FME Transactions

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“…Increasing energy efficiency in the SBs can only be imagined by using RES (mainly solar [30,31] and geothermal [32], sometimes wind energy [33]). The same applies to the NZEB and ZEB concepts.…”

Section: Introductionmentioning

confidence: 99%

Numerical and multi-criteria energy flow analysis in the Kragujevac primary school

Nešović,

Nikolić,

Radojević

2024

FME Transactions

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In this investigation, a numerical and multi-criteria analysis of energy flow in the primary school in the city of Kragujevac is presented. A model of the existing school building with a district heating system was created. Alternative heating systems (the gas boiler, the pellet boiler, and the ground source heat pump) were analyzed to achieve energy savings. Different types of buildings are simulated with and without photovoltaic panels. Google SketchUp was used for building modeling, while EnergyPlus simulated buildings' energy behavior in real conditions. Results show that pellet boilers with photovoltaic panels can reduce primary energy by 89% and CO₂ emission by 87.55%. For the ground source heat pump with photovoltaic panels, the final energy saving is 77.83%, primary energy saving is 70.82%, and CO₂ reduction is 57.90%. Using numerical and multi-criteria analyses, the authors want to bring the existing public buildings closer to the zero-energy building concept and the city closer to the sustainable development concept.

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“…f -chart was developed using a large number of transient simulations to develop correlations among dimensionless parameters that could be easily calculated from available input data [32]. The f -chart method is still used nowadays as a base for sizing [33], energy performance evaluations [34] and standards [35], but it assumes that the system is correctly sized and operated.…”

Section: Introductionmentioning

confidence: 99%

A Standard-Based Method to Simulate the Behavior of Thermal Solar Systems with a Stratified Storage Tank

Piana

Grassi

Socal³

2020

Energies

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Thermal solar systems are interesting solutions to reduce CO 2 emissions and gradually promote the use of renewable sources. However, sizing such systems and analysing their behavior are still challenging issues, especially for the trade-off between useful solar energy maximization and stagnation risk minimization. The new EPB (Energy Performance of Buildings) standard EN 15316-4-3:2017 offers several methods to evaluate the performance of a forced circulation solar system. One of them is a dynamic hourly method that must be used together with EN 15316-5:2017 for the simulation of the stratified storage tank connected with the solar loop. In this work, such dynamic hourly method is extended to provide more realistic predictions. In particular, modeling of the pump operation due to solar fluid temperature exceeding a set threshold, or due to low temperature differential between solar field and storage tank, is introduced as an on–off control. The implemented code is applied to a case study of solar system for the preparation of domestic hot water and the impact of different design parameters is evaluated. The model predicts a higher risk of overtemperature lock-out or stagnation when the solar field surface is increased, the storage volume is reduced and water consumption is set to zero to simulate summer vacation periods. Finally, a simple modulating control with a time step of a few seconds to a few minutes is introduced, quantitatively showing the resulting benefits in terms of useful solar energy increase, back-up operation savings and reduced auxiliary energy use.

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Simulation of solar water heating system

Cited by 5 publications

References 6 publications

A comprehensive global review of building integrated photovoltaic systems

A comprehensive global review of building integrated photovoltaic systems

Numerical and multi-criteria energy flow analysis in the Kragujevac primary school

A Standard-Based Method to Simulate the Behavior of Thermal Solar Systems with a Stratified Storage Tank

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