Temat: hybrid heat sources - Katalog OPAC zbiorów

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Tytuł:: Analiza funkcjonowania pompy ciepła współpracującej z urządzeniami wykorzystującymi różne nośniki energii
Performance analysis of a heat pump cooperating with devices using different energy sources
Autorzy:: Pater, S.
Ciesielczyk, W.
Powiązania:: https://bibliotekanauki.pl/articles/2073039.pdf
Data publikacji:: 2016
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: odnawialne źródła energii
pompa ciepła
kolektor słoneczny
gruntowy wymiennik ciepła
renewable energy sources
heat pump
solar collector
ground heat exchanger
hybrid installation
Opis:: Przedstawiono wybrane aspekty pracy pompy ciepła typu solanka/woda współpracującej z kolektorami słonecznymi oraz kotłem gazowym w instalacji hybrydowej w budynku mieszkalno-usługowym zlokalizowanym na obrzeżach Krakowa. Współpraca pompy ciepła z urządzeniami wykorzystującymi różne nośniki energii pozwoliła na uzyskanie wysokich wartości współczynnika SPF (sezonowego współczynnika efektywności) pompy ciepła w sezonach grzewczych. Dane doświadczalne otrzymano z instalacji pracującej w warunkach rzeczywistych nieprzerwanie od września 2011 roku.
The paper presents selected operating aspects of brine/water heat pump cooperating with a solar collectors and gas condensing boiler in the hybrid installation mounted in a residential-service building located at Krakow outskirts. The cooperation of heat pump with devices utilizing various sources of energy allowed one to obtain high SPF (Seasonal Performance Factor) values of heat pump in heating seasons. The experimental data were obtained in the system continuously operating in real conditions since September 2011.
Źródło:: Inżynieria i Aparatura Chemiczna; 2016, 2; 68--69
0368-0827
Pojawia się w:: Inżynieria i Aparatura Chemiczna
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Comparative analysis of decision-making factors of hybrid and emission-free heat source users in single-family houses
Autorzy:: Nadolny, Michał
Walaszczyk, Ewa
Walerysiak, Sebastian
Powiązania:: https://bibliotekanauki.pl/articles/52596442.pdf
Data publikacji:: 2024
Wydawca:: Uniwersytet Ekonomiczny w Katowicach
Tematy:: energy
decision-making process
heat source
hybrid heat sources
emission-free heat sources
consumers’ characteristics
Opis:: Aim/purpose – Energy is traditionally produced using fossil fuels as raw materials, which impacts the environment negatively. Due to the scarcity of fossil fuel supplies, rising prices of energy carriers, and global trends, consumers are turning to renewable energy sources (RES) for home heating. The aim of this study was to determine whether the choice of house heating system using different sources than fossil fuels is driven by any additional components of single-family house users’ purchasing decisions besides cost. Based on research results, the prospects for further transformation of thermal energy in single-family housing in Poland towards RES were determined. Design/methodology/approach – The research on the inhabitants of single-family houses was conducted in December 2022 in Poland. The research method used was a survey using the CATI and CAWI techniques. 600 respondents filled out the questionnaire. The results were statistically analyzed. A non-parametric Kruskal-Wallis test (non-parametric ANOVA) and a post-hoc test were used. The distributions’ normality and the variances’ homogeneity were measured using Kolmogorov–Smirnov and Brownian–Forsythe tests. Calculations were performed using Statistica software. Findings – The choice of heating energy source in single-family houses, taking CO₂ emissions into account, is not dictated by income level. Instead, it is determined by the number of people in the household. More numerous households opt for a zero-emission heat source. Households using emission-based heating energy sources are significantly more driven by the cost of using heating appliances; their purchase price, reliability, and product quality are more important than those using zero-emission methods. The partial use of renewable energy source solutions promotes further investment in emission-free heat sources. Research implications/limitations – The analysis illustrates the state of thermal transformation in single-family houses during the energy transition process at the national level. A limitation of the research is that it samples only one EU country struggling with too high CO₂ emissions compared to other countries. Originality/value/contribution – A unique approach used in this study is to address the variation in incentives for renewable energy purchasing decisions, considering CO₂ emissions. This aspect, although noticeable to some extent, is not directly taken into account by users who do not have the tools to assess their CO₂ emissions. However, the proposed research approach showed that the CO₂ emission level of a heating system is a factor differentiating some aspects of the decision-making process of system users. In particular, it showed what elements of the decision are essential in households that have not yet taken any action towards energy transformation.
Źródło:: Journal of Economics and Management; 2024, 46; 246-273
1732-1948
Pojawia się w:: Journal of Economics and Management
Dostawca treści:: Biblioteka Nauki

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