Cooling Panel with Integrated PCM Layer: A Verified Simulation Study

Millers, Renārs; Korjakins, Aleksandrs; Lešinskis, Arturs; Borodiņecs, Anatolijs

doi:10.3390/en13215715

Cited by 10 publications

(5 citation statements)

References 23 publications

(35 reference statements)

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“…1) The intended use of the building, including the modes of use, technological processes within the premises, projected number of occupants, workplaces, and lighting. 2) Detailed insights on the thermal attributes of external boundaries and the thermal inertia of the premises' internal structures (Saleh Pascha et al, 2016;Millers et al, 2020;Borodinecs et al, 2022a;Borodinecs et al, 2022b;Metals et al, 2022;Prozuments et al, 2023;Staveckis and Zemitis, 2023).…”

Section: Introductionmentioning

confidence: 99%

Ventilation and air conditioning design approach based on ASHRAE psychrometric chart and Mollier diagram

Lešinskis,

Strauts,

Metāls

et al. 2024

Front. Built Environ.

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Society needs long-term sustainability and healthy building projects, and indoor air quality assurance engineering systems play a pivotal role in the energy performance of buildings. Therefore, when designing heating, ventilation, and air conditioning systems, it is crucial to make the most technically sound decisions in terms of energy consumption and assess their impact on the building’s energy performance. This article delves into the design of ventilation and air conditioning systems, presenting a method for evaluating their performance. The foundation of project development is an agreement on the design criteria, which are developed based on a preliminary analysis of the building concept. This agreement ensures cohesive collaboration among all stakeholders: the client, the architect, the system designer, the contractor, and ultimately the personnel responsible for commissioning, operating, and maintaining the systems post-construction. We suggest conducting a comprehensive analysis of the processes occurring within the space without initially linking them to room air exchange. From this analysis, we derive the angular coefficient for the direction of the air condition change on both a psychrometric chart and a Mollier diagram. The process line on the psychrometric chart provides insights into how the performance factor of the air distribution system will influence the desired supply air parameters. We can then evaluate how significantly the gap between the supply air and the exhaust air parameters expands if the room’s air exchange volume is reduced for budgetary reasons. The article showcases this design methodology using a simplified case study.

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Section: Introductionmentioning

confidence: 99%

Ventilation and air conditioning design approach based on ASHRAE psychrometric chart and Mollier diagram

Lešinskis,

Strauts,

Metāls

et al. 2024

Front. Built Environ.

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“…A lot of research is being conducted on technology development and new methods of control to be used in modern DCV systems. Moreover, for cooling [15,16] and heating [17,18] systems, new ways to reduce energy consumption and introduce renewable sources or even bioclimatic strategies [19] are constantly being searched for.…”

Section: Introductionmentioning

confidence: 99%

HVAC System Control Solutions Based on Modern IT Technologies: A Review Article

2022

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As energy consumption for building engineering systems is a major part of the total energy spent, it is necessary to reduce it. This leads to the need for the development of new solutions for the control of heating, ventilation, and conditioning (HVAC) systems that are responsive to humans and their demands. In this review article, the existing research and technology advancements of the modern technologies of computer vision and neural networks for application in HVAC control systems are studied. Objectives such as human detection and location, human activity monitoring, skin temperature detection, and clothing level detection systems are important for the operation of precise, high-tech HVAC systems. This article tries to compile the latest achievements and principal solutions on how this information is acquired. Moreover, it how parameters such as indoor air quality (IAQ), variable air volume ventilation, computer vision, metabolic rate, and human clothing isolation can affect final energy consumption is studied. The research studies discussed in this review article have been tested in real application scenarios and prove the benefits of using a particular technology in ventilation systems. As a result, the modernized control systems have shown advantages over the currently applied typical non-automated systems by providing higher IAQ and reducing unnecessary energy consumption.

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“…However, there is a fundamental shortcoming of solar energy, a mismatch between available energy and consumption, which makes it necessary to store the energy. Phase change materials (PCMs) are effective for storing heat in thermal energy storage because they can store not only thermal energy beyond temperature change as sensible heat storage but also through melting and solidification, as latent heat storage, which occurs over a narrow temperature range allowing 5 to 14 times more thermal energy to be stored than sensible thermal energy storage of the same size [2]. Latent heat storage uses the phase change of matter between different aggregate states -gas/liquid, solid/gas, solid/liquid and solid/solid [3].…”

Section: Introductionmentioning

confidence: 99%

Optimization model of solar cooling system with latent heat storage

Migla

Ļebedeva

2022

APP

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Today, the fastest growing end-use in the buildings sector is cooling demand, notes the International Energy Agency (IEA). In the last few years, the interest in solar cooling systems has been growing globally. Solar cooling systems are the next solution to meet the growing demand for air conditioning. The literature analysis shows that solar cooling systems mainly use single-stage absorption chillers, with water as the working fluid, and only a small fraction of them use phase change materials to improve heat storage. Based on previous studies on solar-assisted cooling systems, the use of phase change materials for thermal storage should be investigated.The paper will present a study of a solar cooling system with the optimized PCM thermal storage, with the aim of stabilizing the operation of heat storage, taking into account the volatility of solar energy, the impact of short-term operations and peak hours on the amount of heat produced. This means that the amount of electricity consumed to heat up the accumulation tank will be significantly reduced. The optimization model in simulation software will be performed to test solar cooling system with latent heat storage, with aim to investigate the efficiency of the developed latent energy storage and provide technical guidance for the implementation of such system in the practice. All indicators, including environmental impact and economic calculations, will be identified in order to determinate the specific systems for foresight market uptake.

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Cooling Panel with Integrated PCM Layer: A Verified Simulation Study

Cited by 10 publications

References 23 publications

Ventilation and air conditioning design approach based on ASHRAE psychrometric chart and Mollier diagram

Ventilation and air conditioning design approach based on ASHRAE psychrometric chart and Mollier diagram

HVAC System Control Solutions Based on Modern IT Technologies: A Review Article

Optimization model of solar cooling system with latent heat storage

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