Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Wojciech Kalawa"'
Autor:
Wojciech Kalawa, Karol Sztekler, Jakub Kozaczuk, Łukasz Mika, Ewelina Radomska, Wojciech Nowak, Andrzej Gołdasz
Publikováno v:
Energies, Vol 17, Iss 5, p 1181 (2024)
Broadly defined climate protection is a powerful incentive in the search for environmentally friendly refrigeration technologies. Adsorption chillers are considered to be one such technology; however, their main disadvantages include a low cooling ca
Externí odkaz:
https://doaj.org/article/e080daecb19e4d48a09bbd9010b1be06
Autor:
Wojciech Kalawa, Karol Sztekler, Agata Mlonka-Mędrala, Ewelina Radomska, Wojciech Nowak, Łukasz Mika, Tomasz Bujok, Piotr Boruta
Publikováno v:
Energies, Vol 16, Iss 15, p 5817 (2023)
Adsorption systems are alternatives to compressor cooling systems. Apart from many advantages, these systems are characterized by low COP and SCP parameters. One of the most promising options to improve the performance of adsorption chillers is the r
Externí odkaz:
https://doaj.org/article/06132645dfc64e148a0a4453d44232e4
Autor:
Ewelina Radomska, Łukasz Mika, Karol Sztekler, Wojciech Kalawa, Łukasz Lis, Kinga Pielichowska, Magdalena Szumera, Paweł Rutkowski
Publikováno v:
Energies, Vol 16, Iss 3, p 1188 (2023)
Many attempts are made worldwide to create cheap, efficient, and eco-friendly water desalination systems. Passive solar stills (SS) are considered to be such. This paper presents the results of the experimental and theoretical investigation of the ef
Externí odkaz:
https://doaj.org/article/e7d82d957953469ca7957f746d0bd21a
Autor:
Agata Mlonka-Mędrala, Tarikul Hasan, Wojciech Kalawa, Marcin Sowa, Karol Sztekler, Moises Luzia Pinto, Łukasz Mika
Publikováno v:
Energies, Vol 15, Iss 19, p 7444 (2022)
Adsorption chillers produce cold energy, using heat instead of electricity, thus reducing electrical energy consumption. A major industrial waste, fly ash, can be converted to zeolite and used in adsorption chillers as an adsorbent. In this research,
Externí odkaz:
https://doaj.org/article/22329aa8adeb4d9693d3db61b132a11f
Autor:
Anna Pajdak, Anna Kulakowska, Jinfeng Liu, Katarzyna Berent, Mateusz Kudasik, Jaroslaw Krzywanski, Wojciech Kalawa, Karol Sztekler, Norbert Skoczylas
Publikováno v:
Applied Sciences, Vol 12, Iss 11, p 5644 (2022)
This paper presents a study of the application of the properties of water vapor as a gas with high potential energy, strongly dependent on temperature and pressure. Analyses of water vapor sorption on two types of silica gels (SG) (90 wt.%) enriched
Externí odkaz:
https://doaj.org/article/1595d15a82a04cbaa5acc8a70c94e0c2
Autor:
Jarosław Krzywanski, Karol Sztekler, Marcin Bugaj, Wojciech Kalawa, Karolina Grabowska, Patryk Robert Chaja, Marcin Sosnowski, Wojciech Nowak, Łukasz Mika, Sebastian Bykuć
Publikováno v:
Bulletin of the Polish Academy of Sciences: Technical Sciences, Vol 69, Iss 3 (2021)
Adsorption cooling and desalination technologies have recently received more attention. Adsorption chillers, using eco-friendly refrigerants, provide promising abilities for low-grade waste heat recovery and utilization, especially renewable and wast
Externí odkaz:
https://doaj.org/article/14b6095012a04add80ee6b5341efd506
Autor:
Małgorzata Sieradzka, Agata Mlonka-Mędrala, Izabela Kalemba-Rec, Markus Reinmöller, Felix Küster, Wojciech Kalawa, Aneta Magdziarz
Publikováno v:
Energies, Vol 15, Iss 10, p 3539 (2022)
Thermochemical conversion of biomass waste is a high potential option for increasing usage of renewable energy sources and transferring wastes into the circular economy. This work focuses on the evaluation of the energetic and adsorption properties o
Externí odkaz:
https://doaj.org/article/17aee2361c1b4b69af91b0c8dfdb66e5
Autor:
Karol Sztekler, Agata Mlonka-Mędrala, Nezar H. Khdary, Wojciech Kalawa, Wojciech Nowak, Łukasz Mika
Publikováno v:
Energies, Vol 15, Iss 1, p 368 (2022)
Due to a high risk of power outages, a heat-driven adsorption chillers are gaining the attention. To increase the efficiency of the chiller, new adsorbents must be produced and examined. In this study, four newly developed silica–based porous mater
Externí odkaz:
https://doaj.org/article/212c608a535147078ac2235542a99f07
Publikováno v:
Energies, Vol 14, Iss 21, p 7226 (2021)
Adsorption chillers with desalination functionality, being devices characterised by very low electricity consumption, provide an alternative to conventional sources of cooling and water. The option of desalinating water means that the use of a single
Externí odkaz:
https://doaj.org/article/0ecb591f2bf94c8a9dddb21568445825
Autor:
Karol Sztekler, Tomasz Siwek, Wojciech Kalawa, Lukasz Lis, Lukasz Mika, Ewelina Radomska, Wojciech Nowak
Publikováno v:
Energies, Vol 14, Iss 22, p 7804 (2021)
This paper presents the results of numerical tests on the elements of an adsorption chiller that comprises a sorption chamber with a bed, a condenser, and an evaporator. The simulation is based on the data and geometry of a prototype refrigeration ap
Externí odkaz:
https://doaj.org/article/c79c9bbcdfb840df8f42b702ebf1dd8d