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Tytuł:
Integration of Heat Storage Technologies in District Heating Systems
Autorzy:
Konyk, Alina
Demchenko, Vladimir
Powiązania:
https://bibliotekanauki.pl/articles/2069933.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
thermal energy storage
district heating system
mobile thermal energy storage
Opis:
Global trends in the efficiency, safety of energy systems and energy conservation actualize the task of developing new technologies for energy storage and transportation. The article considers current technologies of storage and accumulation of thermal energy, which can be used in central heating systems, and draws conclusions about the feasibility of their use. Also, the classification of energy storage systems is presented. The most perspective thermal energy storage, which can be used to equalize the load on the energy source to ensure the peak demand for heat with a high coefficient of utilization of the equipment capacity, is noted.
Źródło:
Rocznik Ochrona Środowiska; 2021, 23; 493--502
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal energy storage in buildings: Opportunities and challenges
Autorzy:
Deka, Priyam
Szlęk, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2204063.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermal energy storage
renewable energy
phage change material
latent heat thermal energy storage
sensible heat thermal energy storage
Opis:
The energy sector is a majorarea that is responsible for the country development. Almost 40% of the total energy requirement of an EU country is consumed by the building sector and 60% of which is only used for heating and cooling requirements. This is a prime concern as fossil fuel stocks are depleting and global warming is rising. This is where thermal energy storage can play a major role and reduce the dependence on the use of fossil fuels for energy requirements (heating and cooling) of the building sector. Thermal energy storage refers to the technology which is related to the transfer and storage of heat energy predominantly from solar radiation, alternatively to the transfer and storage of cold from the environment to maintain a comfortable temperature for the inhabitants in the buildings by providing cold in the summer and heat in the winter. This work is an extensive study on the use of thermal energy storage in buildings. It discusses different methods of implementing thermal energy storage into buildings, specifically the use of phase change materials, and also highlights the challenges and opportunities related to implementing this technology. Moreover, this work explains the principles of different types and methods involved in thermal energy storage.
Źródło:
Archives of Thermodynamics; 2022, 43, 4; 21--61
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physical Characteristics of Aceh Traditional Salt and Its Potential as Raw Material for Thermal Energy Storage
Autorzy:
Gunawati, -
Humaidi, Syahrul
Setiawan, Adi
Sirait, Makmur
Jalil, Zulkarnain
Ramadhani, Nadilla
Makruf, Amar
Riskina, Shafira
Irhamni, -
Powiązania:
https://bibliotekanauki.pl/articles/2026731.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aceh salt
enthalpy
thermal conductivity
thermal energy storage
Opis:
Thermal energy storage is an important element in order to conserve the energy and optimize the overall efficiency. Development of energy storage system for local purposes requires some information on the raw material which is abundantly available in the local market. This study aimed to investigate the characteristics of traditionally produced salt in Aceh in terms of its potential use as a raw material for thermal energy storage. The sample was collected from the Aceh Besar District and treated by heating at temperatures of 400 °C and 800 °C in a muffle furnace. This treatment is carried out to study the changes in properties and define the best procedure for salt preparation. All samples were characterized under a number of techniques including XRF, XRD, SEM/EDS, TGA/DSC analysis, density, thermal conductivity, and electrolytic conductivity. The XRF characterization showed that the local Aceh salt was graded as a category III salt. Furthermore, according to the TGA/DSC characterization, the melting temperature is close to 800 °C, and the enthalpy value is close to 492 kJ/kg. It is ample evidence that the Aceh salt can be used as a thermal energy storage material. Furthermore, increasing the temperature of local salt’s heat treatment contributes to increasing the enthalpy value, crystal size, density, thermal conductivity, and electrolyte conductivity.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 116-122
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Techno-Economic Assessment of Concentrating Solar Power and Wind Hybridization in Jordan
Autorzy:
Ayadi, O.
Alsalhen, I. A.
Powiązania:
https://bibliotekanauki.pl/articles/124277.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
concentrated solar power
wind
thermal energy storage
hybridization
Opis:
The variable renewable wind and solar resources have experienced a significant growth on its rate of deployment as a clean and competitive alternative for conventional power sources in Jordan. However, the variability of these sources have brought many technical challenges to grids. This paper presents a hybrid system that provides a firma capacity and improves dispatchability with an interesting financial perspective. This hybrid system includes a wind farm and a concentrated solar power plant with thermal energy storage. The performance analysis was conducted in terms of final yield and capacity factor, while the economic analysis investigated the levelized cost of electricity LCOE. The hybrid plant was simulated and optimized using TRNSYS 17 energy simulation software, minimizing the LCOE and considering a capacity factor higher than 65% as a constraint. Solar multiple and storage size were considered as decision variables. A strong complementarity between wind and direct normal solar radiation was observed in the selected location in Jordan, which emphasizes the attractiveness of the selected hybrid system. The optimal configuration of the CSP-wind hybrid system was obtained with a solar field of a 2.6 solar multiple and a 5 hours energy storage. The achieved capacity factor was 94%, and the LCOE is lower than those resulted for standalone CSP plants.
Źródło:
Journal of Ecological Engineering; 2018, 19, 2; 16-23
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cold storage-supported air conditioning system in urban transport vehicles
Autorzy:
Jarzyna, W.
Zielinski, D.
Aftyka, M.
Fatyga, K.
Powiązania:
https://bibliotekanauki.pl/articles/124731.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
thermal energy storage
electric city bus
energy management
Opis:
A bottleneck for the development of public transport vehicles is their electricity supply. Electric buses are almost exclusively equipped with electrochemical batteries, while nearly 40% of the energy is used in the processes of air conditioning. For this reason, we developed and built a demonstration system for storing thermal energy in public transport vehicles. The most important effects are: significant reduction of financial expenses and of the total weight of all batteries with the same amount of stored energy.
Źródło:
Journal of Ecological Engineering; 2016, 17, 5; 120-127
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of solar cooker with thermal storage for remote hilly areas: determination of heating and cooling characteristic time
Autorzy:
Raghav, Geetanjali
Sharma, Pankaj Kumar
Kumar, Suresh
Maithani, Rajesh
Iung, Alexis
Quentin, Mercier
Powiązania:
https://bibliotekanauki.pl/articles/2142896.pdf
Data publikacji:
2021
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
solar energy
solar cookers
thermal storage
thermal performance
energia słoneczna
kuchenka słoneczna
magazynowanie ciepła
wydajność cieplna
Opis:
Solar cooking finds a major application in rural areas of Uttarakhand, India, yet its utilization is still limited due to certain limitation such as intermittent nature of solar radiations. This drawback limits solar cooker in becoming a viable alternate solution of LPG and other pollution causing resources such as wood. In order to cater this problem a numerical analysis of box type solar cooker with storage is carried out. The energy stored in the storage material will keep the cooker warm up to the time when food is consumed. Charging and discharging time analysis is performed in with an aim to understand the effect of storage on solar cooker. Heating and cooling characteristic time are being evaluated and analysed with storage. Thermal performance of box type solar cooker is measured in terms of figures of merit according to BIS standards. The effect of storage has also been analysed in terms of charging and discharging time and first figure of merit of box type solar cooker.it has been observed that during discharging the heat is stored for more duration as compared to the charging time as discharge time is approx. 4-5 hours while charging time for the same amount of insolation is around 3-4 hours.
Źródło:
Acta Innovations; 2021, 40; 5-18
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling and analysis of energy and exergy performance of a PCM-augmented concrete-based Trombe wall systems
Autorzy:
Ezurike, Benjamin O.
Okoronkwo, Chukwunenye A.
Nwokenkwo, Uchenna
Ajah, Stephen A.
Powiązania:
https://bibliotekanauki.pl/articles/2172772.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Trombe wall
boundary condition
thermal storage
simulation
Ściana Trombe'a
warunek brzegowy
przechowywanie termiczne
symulacja
Opis:
The aim of this research was to model the performances of energy and exergy on a Trombe wall system to enable an adequate thermal comfort. The main equations for the heat transfer mechanisms were developed from energy balances on subcomponents of the Trombe wall with the specification of the applicable initial and boundary conditions. During the incorporation of the PCM on the Trombe wall, the micro- encapsulation approach was adopted for better energy conservation and elimination of leakage for several cycling of the PCM. The charging and discharging of the PCM were equally accommodated and incorporated in the simulation program. The results of the study show that an enhanced energy storage could be achieved from solar radiation using PCM-augmented system to achieve thermal comfort in building envelope. In addition, the results correspond with those obtained from comparative studies of concrete-based and fired-brick augmented PCM Trombe wall systems, even though a higher insolation was used in the previous study.
Źródło:
Archive of Mechanical Engineering; 2022, LXIX, 2; 245--257
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solar Heating for Pit Thermal Energy Storage – Comparison of Solar Thermal and Photovoltaic Systems in TRNSYS 18
Autorzy:
Słomczyńska, Klaudia
Mirek, Paweł
Panowski, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2206281.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
solar energy
district heating
heat storage system
pit thermal energy storage
TRNSYS
Opis:
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 m3 seasonal pit thermal energy storage (PTES). 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.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 5; 40--51
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A PCM-water heat exchanger with polymeric hollow fibres for latent heat thermal energy storage: a parametric study of discharging stage
Autorzy:
Hejčĺk, J.
Charvát, P.
Klimeš, L.
Astrouski, I.
Powiązania:
https://bibliotekanauki.pl/articles/280172.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
polymeric hollow fibre
heat exchanger
latent heat thermal energy storage
phase change materials
Opis:
The paper presents a theoretical parametric study into latent heat thermal energy storage (LHTES) employing polymeric hollow fibres embedded in a phase change material (PCM). The polymeric hollow fibres of five inner diameters between 0.5 mm and 1.5 mm are considered in the study. The effectiveness-NTU method is employed to calculate the thermal performance of a theoretical LHTES unit of the shell-and-tube design. The results indicate that the hollow fibres embedded in a PCM can mitigate the drawback of low thermal conductivity of phase change materials. For the same packing fraction, the total heat transfer rates between the heat transfer fluid and the PCM increase with the decreasing diameter of the hollow fibres. This increase in the heat transfer rate and thus the efficiency of the heat exchange to some extent compensate for the energy consumption of the pump that also increases with the decreasing fibre diameter.
Źródło:
Journal of Theoretical and Applied Mechanics; 2016, 54, 4; 1285-1295
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards development of a prototype high-temperature latent heat storage unit as an element of a RES-based energy system (part 1)
Autorzy:
Bogucka-Bykuć, K.
Włosiński, W.
Bykuć, S.
Powiązania:
https://bibliotekanauki.pl/articles/201522.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
latent heat storage
LHS
thermal energy storage system
TESS
phase change material
PCM
renewable energy sources
RES
Opis:
This paper presents briefly the state of the art literature review with respect to research in the field of latent heat storage systems as elements of heat only, power only or combined heat and power (CHP) plants utilizing renewable energy sources (RES) for residential applications. Next, a paper introduces initial research carried out in IMP PAN in Gdańsk, Poland, aimed at development of a prototype latent heat storage unit. Identification of the suggested application for the storage unit in a given system is presented. The first stage of development of a prototype heat storage unit, namely a process of PCM pre-selection is discussed.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 3; 489-494
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal performance of energy storage vessel
Autorzy:
Jurigova, M.
Minarova, M.
Chmurny, I.
Powiązania:
https://bibliotekanauki.pl/articles/131595.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Komisja Inżynierii Budowlanej PAN Oddział w Katowicach
Tematy:
thermal energy storage
hot water
mathematical model
magazynowanie energii cieplnej
woda ciepła
model matematyczny
Opis:
This paper is focused on an analysis of thermal energy performance of storage vessel[4]. This storage system consists of two concentric cylindrical containers made of concrete, between these two layers there is a thermal insulation layer – the vacuum-like one. The inner container is filled by water intended to operate as a heat accumulation medium and temperature of the water is assumed as 90ºC. The cooling process was simulated for a period of 30 days in the ANSYS software environment. The simulation showed that the analyzed type of heat storage vessel is able to keep the thermal Energy relatively efficiently.
Źródło:
Roczniki Inżynierii Budowlanej; 2015, 15; 11-16
1505-8425
Pojawia się w:
Roczniki Inżynierii Budowlanej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of wind power utilization in district heating systemsin the Westfjords, Iceland
Autorzy:
Mathews, Kamil
Sowiżdżał, Anna
Powiązania:
https://bibliotekanauki.pl/articles/184426.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Renewable Energy Sources
sector coupling
wind turbines
district heating
Thermal Energy Storage
Iceland
the Westfjords
Opis:
Some Renewable Energy Sources (RES), such as wind power, are often regarded as intermittent. That means they are not available on demand, but rather depend on external conditions e.g. such as the weather. In order to manage these resources, it is advised to combine them with energy storage or other energy sectors, what is known as “sector coupling”. This approach is set to mitigate the negative impact of unstable renewable energy sources and manage the generated surpluses. In this study, a system combining wind turbines, district heating network and short-term thermal energy storage was proposed and examined for the instance of the Westfjords, Iceland. Ísafjörður, Patreksfjörður, Bolungarvík and Flateyri are the exemplary communities with existing district heating networks, chosen to investigate the implementation of the system. A short review of the current state of the energy sector in Iceland was provided to present the local conditions. Wind potential in the described area was estimated as high in comparison with average wind turbine generation in the European Union and a few instances of wind turbines placement were analyzed in this study. For locations close to the district heating net-work, a long-term correlation between power generation and usage was proven. However, locating wind turbines in places with better wind conditions, provides stable output and a similar amount of energy produced by fewer generators.
Źródło:
Geology, Geophysics and Environment; 2019, 45, 2; 77-88
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The design of a model for a 1 MW parabolic trough concentrated solar power plant in Sudan using TRNSYS software
Projekt modelu skoncentrowanej elektrowni słonecznej z rynną paraboliczną o mocy 1 MW w Sudanie z wykorzystaniem oprogramowania TRNSYS
Autorzy:
Jebreel, Abdelkareem Abdallah Abdelkareem
Hamad, Hamad Mohamed Ali
Powiązania:
https://bibliotekanauki.pl/articles/2127504.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
thermal storage
thermal solar collectors
photovoltaic solar panel
renewable source of energy
solar power plants
magazynowanie ciepła
termiczne kolektory słoneczne
fotowoltaiczne panele słoneczne
odnawialne źródła energii
elektrownie słoneczne
Opis:
Solar photovoltaic (PV) and concentrated solar power (CSP) systems are the present worldwide trends in utilizing solar energy for electricity generation. Solar energy produced from photovoltaic cells (PV) is considered the main common technology used due to its low capital cost; however, the relatively low efficiency of PV cells has spotlighted development and research on thermal engine applications using concentrated solar power. The efficiency of concentrated solar power is greater than that of PV and considering the solar potential for Sudan. Therefore, this study has been performed in an attempt to draw attention to the utilization of CSP in Sudan since the share of CSP is insignificant in comparison with PV, besides the suitability of CSP applications to Sudan’s hot climate and the high solar energy resource, the study presents a design model of 1 MW parabolic trough collectors (PTC) using the Rankine cycle with thermal energy storage (TES) in Sudan, by adopting reference values of the Gurgaon PTC power plant in India. The design of a 1 MW Concentrated Solar thermal power plant using parabolic trough collectors (PTC) and thermal energy storage is proposed. The simulation was performed for a site receiving an annual direct normal irradiance (DNI) of 1915 kWh/m2, near Khartoum. The results showed that the plant can produce between nearly 0.6 to 1 MWh during the year, and around 0.9 MWh when it encompasses thermal energy storage with an average thermal efficiency of 24%. These results of the PTC Power plant encourage further investigation and the development of CSP technologies for electricity generation in Sudan.
Systemy fotowoltaiczne (PV) i skoncentrowanej energii słonecznej (CSP) to obecne światowe trendy w wykorzystywaniu energii słonecznej do wytwarzania energii elektrycznej. Energia słoneczna wytwarzana z ogniw fotowoltaicznych (PV) jest uważana za główną powszechnie stosowaną technologię ze względu na jej niski koszt kapitałowy, jednak stosunkowo niska wydajność ogniw fotowoltaicznych zwróciła uwagę na rozwój i badania nad zastosowaniami silników cieplnych wykorzystujących skoncentrowaną energię słoneczną. W warunkach posiadanego potencjału słonecznego Sudanu wydajność skoncentrowanej energii słonecznej jest większa niż PV. Dlatego niniejsze badanie zostało przeprowadzone w celu zwrócenia uwagi na wykorzystanie CSP w Sudanie, ponieważ udział CSP jest nieznaczny w porównaniu z PV, pomimo przydatności zastosowań CSP do gorącego klimatu Sudanu i wysokich zasobów energii słonecznej. W pracy przedstawiono projekt modelu parabolicznych kolektorów rynnowych (PTC) o mocy 1 MW z wykorzystaniem cyklu Rankine’a z magazynowaniem energii cieplnej (TES) w Sudanie, przyjmując wartości referencyjne elektrowni Gurgaon PTC w Indiach. Zaproponowano projekt elektrowni słonecznej o mocy 1 MW wykorzystującej paraboliczne kolektory rynnowe (PTC) i magazynowanie energii cieplnej. Symulacja została przeprowadzona dla miejsca zlokalizowanego koło Chartumu, o rocznym bezpośrednim napromieniowaniu normalnym (DNI) 1915 kWh/m2. Wyniki pokazały, że elektrownia może wyprodukować od prawie 0,6 do 1 MWh w ciągu roku i około 0,9 MWh, przy wykorzystaniu magazynowanie energii cieplnej ze średnią sprawnością cieplną 24%. Te wyniki elektrowni PTC zachęcają do dalszych badań i rozwoju technologii CSP do wytwarzania energii elektrycznej w Sudanie.
Źródło:
Polityka Energetyczna; 2022, 25, 3; 67--90
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance analysis and PCM selection for adsorption chiller aided by energy storage supplied from the district heating system
Autorzy:
Karwacki, Jarosław
Kwidziński, Roman
Leputa, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2204066.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermal sorption cooling
phase change material
thermal energy storage
district heating
adsorption
energy management
mathematical modelling
load shifting
efficiency
Opis:
The paper presents a theoretical analysis of thermal energy storage filled with phase change material (PCM) that is aimed at optimization of an adsorption chiller performance in an air-conditioning system. The equations describing a lumped parameter model were used to analyze internal heat transfer in the cooling installation. Those equations result from the energy balances of the chiller, PCM thermal storage unit and heat load. The influence of the control of the heat transfer fluid flow rate and heat capacity of the system components on the whole system operation was investigated. The model was used to validate the selection of Rubitherm RT62HC as a PCM for thermal storage. It also allowed us to assess the temperature levels that are likely to appear during the operation of the system before it will be constructed.
Źródło:
Archives of Thermodynamics; 2022, 43, 4; 135--169
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inorganic salt hydrates as Phase Change Materials (PCM) for thermal energy storage in solar installations
Nieorganiczne hydraty soli jako materiały zmiennofazowe (PCM) do magazynowania energii cieplnej w instalacjach słonecznych
Autorzy:
Styś-Maniara, Marta
Nartowska, Edyta
Metryka-Telka, Monika
Porowski, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/2174679.pdf
Data publikacji:
2022
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Tematy:
salt hydrates
phase change materials
thermal energy storage
latent heat storage
hydraty soli
materiały zmiennofazowe
magazynowanie energii cieplnej
magazynowanie ciepła utajonego
Opis:
The authors present a general idea of using inorganic salt hydrates in solar installations. A key role in this selection is played by thermophysical parameters, so the authors review their test methods and in turn characterize them for the most promising salt hydrates. Next, the authors describe the advantages and disadvantages of inorganic salt hydrates and indicate possibilities for their improvement. The use of salt hydrate converters in PV installations significantly improves the efficiency of photovoltaic modules. We show that at least 18 salt hydrates are promising for solar applications with the best ones being Sodium Hydrogen Phosphate Dodecahydrate, Sodium Carbonate Decahydrate and Calcium Chloride Hexahydrate. The selection of a test method for determining the thermophysical parameters of salt hydrates should be individual depending on the research objective. Comparing the methods presented, we believe that it is the DSC and DTA methods that provide the most accurate and repeatable results.
Autorzy przedstawiają ogólną koncepcję wykorzystania nieorganicznych hydratów solnych w instalacjach solarnych. Kluczową rolę w tym doborze odgrywają parametry termofizyczne, dlatego autorzy dokonują przeglądu metod ich badania i kolejno charakteryzują je dla najbardziej obiecujących hydratów solnych i ich mieszanin. Następnie autorzy opisują zalety i wady nieorganicznych hydratów solnych oraz wskazują możliwości ich udoskonalenia. Zastosowanie konwerterów hydratów solnych w instalacjach PV znacząco poprawia sprawność modułów fotowoltaicznych. Wykazano, że co najmniej 18 hydratów soli i ich mieszanin jest obiecujących dla zastosowań solarnych ze względu na korzystne parametry termofizyczne, przy czym najlepsze z nich to dodekahydrat wodorofosforan sodu, dekahydrat węglanu sodu i heksadydrat chlorku wapnia. Z przeglądu literatury wynika, że wybór metody badawczej do określenia parametrów termofizycznych hydratów soli powinien być indywidualny w zależności od celu badań. Porównując przedstawione metody, stwierdzono, że to właśnie metody DSC i DTA dają najbardziej dokładne i powtarzalne wyniki.
Źródło:
Structure and Environment; 2022, 14, 4; 161--172
2081-1500
Pojawia się w:
Structure and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 33

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