Autor: Ruciński, Adam - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Energochłonność systemów wytwarzania chłodu w obiektach hotelowych
Energy consumption of the cool generation systems in the hotel facilities
Autorzy:: Ruciński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/111025.pdf
Data publikacji:: 2019
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: klimatyzacja
hotel
bilans cieplny
air-conditioning
heat balance
Opis:: W pracy przedstawiono ogólną charakterystykę zużycia energii w branży hotelowej na świecie i w Europie. Podano projektowe i rzeczywiste wielkości zużycia energii służące do pokrycia zapotrzebowania na chłód w wybranych hotelach. Wskazano technologie i procedury postępowania potrzebne do obniżenia wykorzystywania energii ze źródeł nieodnawialnych. Następnie przedstawiono rozważane obecnie perspektywiczne technologie chłodnicze do zastosowania w następnych 10 – 20 latach. W pracy podkreślono potrzebę ograniczenia energochłonności instalacji chłodniczych i klimatyzacyjnych ze względu na ochronę środowiska i czystość atmosfery. Bezpośrednio determinuje to dalszy rozwój branży hotelarskiej w postaci nowoczesnych i nowatorskich rozwiązań.
The paper presents the general characteristics of energy consumption in the hotel industry all over the world and in Europe. The design and actual energy consumption needed for cold production in selected hotels is presented. Technologies and procedures necessary to reduce the use of fossil fuels are indicated. Then, the future cooling technologies currently under consideration are presented for use in the next 10 -20 years. The work underlined the need to reduce the energy consumption of refrigeration and air-conditioning installations due to environmental protection and the purity of the atmosphere. This directly determines the further development of the hotel industry in the form of modern and innovative solutions.
Źródło:: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2019, 3
2450-1859
2450-8721
Pojawia się w:: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Energy and Economic Analysis of an R744 Cooling System as a Replacement for an R404A System
Autorzy:: Kozłowski, Cezary
Ruciński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/24202373.pdf
Data publikacji:: 2022
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: energy efficiency
refrigerant
f-gases
efektywność energetyczna
czynnik chłodniczy
f-gazy
Opis:: High consumption of energy in HVACR industry need to be reduced according to intense fossil fuels usage. It is dangerous for our climate and then for our health and life quality of next generations. The main aim of the study is to compare two cooling systems with the same cooling capacity but with different working refrigerant. One of them is R404A (fluorinated gas) and another is R744 (carbon dioxide). The question is, which of the systems uses lower amount of energy and which of them has lower LCC. The ‘carbon path’ – CO2 emmision is considered too. In the paper the configuration of the systems were established. The cycle with R404A is straight one stage compressor refrigeration system compare to supercritical compression refrigeration system with R744. The calculation process was done in Pack Calculation Pro software. It gives some databases with climate data which helps to find exploitation energy usage and energy cost with ‘carbon path’ calculations. For a system based on the use of R744 refrigerant, electricity consumption is lower than when using R404A refrigerant. Particularly large savings are generated in winter. Annual savings can be estimated at 28%. This is due to the difference in average annual EER of 1.15. Then, calculation introduced that total emission for the system with R404A is nearly 32% higher than in case of R744 supercritical compression system. The comparison done in this paper shows that supercritical compression systems with R744 is good alternative technology for those with fluorinated gases. However, some technical problems should be improved to make this technology much more efficient, cheaper and safe.
Źródło:: Modern Engineering; 2022, 3; 18--26
2450-5501
Pojawia się w:: Modern Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Physicochemical changes and weight loss during freezing, storage and thawing of food products - review of selected issues
Autorzy:: Ruciński, Adam
Stopińska, Wioletta
Powiązania:: https://bibliotekanauki.pl/articles/132023.pdf
Data publikacji:: 2019
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: weight loss
freezing
storage
Opis:: The paper shows changes occurring during freezing, storage and thawing of food products. In particular, it refers to weight loss associated with moisture loss. The influence of the chosen freezing method and the type of packaging (or lack thereof) on the amount of water lost in the product is shown. Characteristics of the rate of moisture loss depending on the conditions of storage of products in cold storage chambers are described. The methods of preventing greater loss of moisture in stored products are indicated. The article also contains a short description of the product thawing methods and methods of preventing excessive moisture loss.
Źródło:: Modern Engineering; 2019, 2; 78-87
2450-5501
Pojawia się w:: Modern Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Expanders in refrigeration system - general information
Autorzy:: Kuryło, Konrad
Ruciński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/2195732.pdf
Data publikacji:: 2020
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: refrigeration
expander
expander efficiency
chłodnictwo
ekspander
sprawność ekspandera
Opis:: The paper presents the causes of research on the use of expanders in refrigeration systems. The possible types of expander are introduced. The turbine expander was selected for the comparative analysis. The results of theoretical and experimental work on cooling cycles with carbon dioxide as refrigerant in the supercritical and subcritical systems equipped with turbine decompressors were presented. It has been proven that the use of expanders has enabled energy savings in the level of 25%.
Źródło:: Modern Engineering; 2020, 4; 135--139
2450-5501
Pojawia się w:: Modern Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Aspects of adapting the cooling installation in a food cold storage system to the applicable f-gas regulations
Autorzy:: Brański, Filip
Ruciński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/1537320.pdf
Data publikacji:: 2021
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: cold store
cooling installation
F-Gas Act
refrigerant
chłodnia
instalacja chłodząca
ustawa F-gazowa
chłodziwo
Opis:: The paper presents the methodology of the analysis of the cooling system reconstruction in a food cold store under the regulations applicable from the beginning of 2020. They result from the so-called the F-Gas Act concerns the use of refrigerants with a low environmental impact. First, the elements of the existing regulations on the use of refrigerants were discussed. This part of article focus mainly on the F-Gas Act and the regulations it entails. Then, the refrigerants used so far in refrigeration systems were compared with substitutes, which were the only ones that have been approved for use since 2020, thanks to the low GWP index. Their properties are briefly described, along with the benefits (primarily for the environment) of their use. The main part of the work is the analysis of the reconstruction of the cooling system to use an alternative refrigerant. During the work, the construction of the cold storage was analyzed together with the system currently working in analysed location. Then, the heat balance was calculated, thanks to which it was possible to determine the demand for cold. Than, several refrigerants that meet the latest standards and application regulations were selected. Their operating parameters were examined, the possible variants of use were compared in relation to the determined demand for cooling and the most important operational features were summarized.
Źródło:: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2021, 2; 30-42
2450-1859
2450-8721
Pojawia się w:: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Comparative analysis of a cooling systems working on an environmentally friendly refrigerants
Autorzy:: Ruciński, Adam
Dalba, Mateusz
Laskowski, Rafał
Powiązania:: https://bibliotekanauki.pl/articles/2073388.pdf
Data publikacji:: 2021
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: refrigeration systems
refrigerants
cascade cooling equipment
economic analysis
systemy chłodnicze
czynniki chłodnicze
kaskadowe urządzenia chłodnicze
analiza ekonomiczna
Opis:: The paper treats with refrigerants which affect on excessive heating of atmosphere. They are in group offluorinated greenhouse gases which are regulated by European and polish law. The main aim is to lower their amount in industry leading to overall removal from use. We present possible way to design refrigeration system lowering their adverse effect on natural environment. So three options of cooling systems are analyzed: one-stage refrigeration system working with R449A, cascade refrigeration system with R744 (carbon dioxide)/ R134a and R717 (ammonia) refrigeration plant. Due to the nowadays raising use of the cascade systems, an analysis of the operating parameters of such installation was carried out with considering the cascade heat exchanger as a condenser/evaporator. The installations concerned are three alternative offers for meat processing manufactory. A thermal balance was prepared for chambers located in building and the operating parameters of the installation were assumed. The equipment corresponding to the required cooling capacities were selected.
Źródło:: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2021, 4; 32--40
2450-1859
2450-8721
Pojawia się w:: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Determining steam condensation pressure in a power plant condenser in off-design conditions
Autorzy:: Laskowski, Rafał
Smyk, Adam
Ruciński, Adam
Szymczyk, Jacek
Powiązania:: https://bibliotekanauki.pl/articles/1954999.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: thermal power plant
steam condenser
condenser model
steam condensation
pressure
reference parameters
steam condenser effectiveness
Opis:: The paper presents formulas which can be used to determine steam condensation pressure in a power plant condenser in off-design conditions. The mathematical model provided in the paper makes it possible to calculate the performance of the condenser in terms of condensing steam pressure, cooling water temperature at the condenser outlet, and condenser effectiveness under variable load conditions as a function of three input properties: the temperature and the mass flow rate of cooling water at the condenser inlet and the mass flow rate of steam. The mathematical model takes into account values of properties occurring in reference conditions but it contains no constant coefficients which would have to be established based on data from technical specifications of a condenser or measurement data. Since there are no such constant coefficients, the model of the steam condenser proposed in the paper is universally applicable. The proposed equations were checked against warranty measurements made in the condenser and measurement data gathered during the operation of a 200 MW steam power unit. Based on the analysis, a conclusion may be drawn that the proposed means of determining pressure in a condenser in off-design conditions reflects the condenser performance with sufficient accuracy. This model can be used in optimization and diagnostic analyses of the performance of a power generation unit.
Źródło:: Archives of Thermodynamics; 2021, 42, 3; 45-62
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Review of air purification methods in urban open spaces
Autorzy:: Rusowicz, Artur
Grzebielec, Andrzej
Ruciński, Adam
Niewiński, Grzegorz
Laskowski, Rafał
Jaworski, Maciej
Mielewczyk, Wojciech
Całun-Nadulski, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/132035.pdf
Data publikacji:: 2019
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: air pollution
air purification
air purification in public space
Opis:: Cities, but also villages around the world, are struggling with air pollution that can lead to illness and even death of citizens. This phenomenon causes that many local governments are going to build an air purification installations in public spaces. The article presents an analysis of air quality in the center of Polish cietes like Warsaw, Krakow and Zakopane for PM10 and PM2.5 dusts in December 2018. There are proposed ways to improve the air quality in open urban spaces.
Źródło:: Modern Engineering; 2019, 3; 103-108
2450-5501
Pojawia się w:: Modern Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Mutual relations between the amygdala and pro-inflammatory cytokines: IL-1β and IL-6
Autorzy:: Czerwiec, Katarzyna
Ruciński, Jan
Piwko, Grzegorz
Myślińska, Dorota
Kosiński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/2203182.pdf
Data publikacji:: 2022-05-31
Wydawca:: Gdański Uniwersytet Medyczny
Tematy:: inflammation
IL-6
amygdala
IL-1β
Opis:: Interleukin 1 (IL-1) and interleukin 6 (IL-6) are typical examples of multfunctonal pro-infammatory cytokines involved in the regulaton of the immune response, hematopoiesis, and infammaton. Both peripheral and intraventricular administraton of these cytokines causes acute phase symptoms, e.g. fever, actvaton of the hypothalamic-pituitary-adrenal axis and psychological depression. The amygdala belongs to the structures of the limbic system involved in the regulaton of the immune response. Increased actvity of immune system may lead to changes in the role of amygdala, medial prefrontal cortex, anterior cingulate cortex or insula. The aim of the study was to present the mutual interactons between the amygdala and pro-infammatory cytokines such as interleukin-1β (IL-1 beta) and interleukin 6 (IL-6). Most of the data included in this review comes from animal studies.
Źródło:: European Journal of Translational and Clinical Medicine; 2022, 5, 1; 40-46
2657-3148
2657-3156
Pojawia się w:: European Journal of Translational and Clinical Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Preliminary report on the microvertebrate faunal remains from the Late Triassic locality at Krasiejów, SW Poland
Autorzy:: Kowalski, Jakub
Bodzioch, Adam
Janecki, Piotr A.
Ruciński, Maciej R.
Antczak, Mateusz
Powiązania:: https://bibliotekanauki.pl/articles/191960.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: microvertebrates
archosauromorphs
fish
amphibians
Triassic
Keuper
Polska
Opis:: Fossil vertebrate remains from the Keuper unit in the vicinity of the village of Krasiejów have been analyzed for almost two decades. However, the main goal of these works was focused mainly on large vertebrates. Here the authors present the first description of microvertebrate fossils from that site. The collection of around 5,000 specimens is mainly comprised of teeth and scales. The most numerous remains belong to osteichthyans: dipnoans (Ptychoceratodus and cf. Arganodus), palaeoniscids, semionotids, redfieldiids and chondrichthyans, such as Lonchidion sp., which is the first indisputable record of that genus in the Upper Triassic of Poland and the first shark at the Krasiejów locality. Tetrapod fossils consist of temnospondyl amphibians, rhynchocephalian lepidosauromorphs and archosauromorphs. Among them, temnospondyl amphibian remains are the most numerous and are represented mostly by Metoposaurus. However, on the basis of diversity in tooth morphotypes, the occurrence of other taxa cannot be excluded. Rhynchocephalians are composed of 7 fragmentary jaw morphotypes with dentition, which could indicate high taxonomic diversity (cf. Planocephalosaurus, cf. Diphydontosaurus and cf. Clevosaurus). The most varied fossil group was assigned to the archosauromorphs. The authors can distinguish at least 19 teeth morphotypes, which show similarities to the dentition of: protorosaurians (cf. Tanystropheidae), pseudosuchians (cf. Protecovasaurus, cf. Revueltosaurus), early crocodylomorphs and basal sauropodomorph dinosaurs. The first occurrence of a theropod dinosaur and cynodonts at the Krasiejów locality is also recorded. However, their remains are very rare. These new records show a high taxonomic diversity at the Krasiejów locality that contributes to our deeper understanding of Late Triassic ecosystem of Poland.
Źródło:: Annales Societatis Geologorum Poloniae; 2019, 89, 3; 291-305
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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