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Contemporary energy-saving mechanical ventilation systems combined with Earth-Air Heat Exchangers (EAHE) can reach high energetic and economic efficiency. The necessary condition for optimisation of ventilation system functioning is the adequate design of EAHE. This requires knowledge of soil temperature distribution in the location of EAHE. It constitutes a complex problem because of the influence...
Our paper presents empirical data from a laboratory experiment investigating the performance of an air-to-soil heat exchanger between July and August 2016. Measurements were performed in a laboratory of the Department of Civil Engineering and Building Engineering Physics of the University of Warmia and Mazury in Olsztyn. Empirical data were compared with the results of analytical calculations based...
Bioethanol is a liquid fuel for which a significant increase in the share of energy sources has been observed in the economies of many countries. The most significant factor in popularizing bioethanol is the profitability of investments in construction of facilities producing this energy source, as well as the profitability of its supply chain. With the market filled with a large amount of equipment...
Our paper discusses a scenario for adapting residential buildings to the requirements of the EU climate and energy package. It analyzes the option of reducing pollutant emissions to ambient air by switching to alternative energy sources in a typical single-family residential building. The most common sources of energy in central heating and ventilation systems and water heating systems were compared,...
Niniejsze opracowanie dotyczy badań potencjału energetycznego biomasy, obecnie trzeciego co do wielkości naturalnego źródła energii na świecie. Energia zawarta w biomasie jest najmniej kapitałochłonnym źródłem energii odnawialnej. Jej pozyskiwanie nie wiąże się z wprowadzaniem zanieczyszczeń do środowiska, przy okazji istnieje możliwość pozbycia się kłopotliwych odpadów poprodukcyjnych. Jednak pozyskiwanie...
Jednym z elementów współczesnej działalności gospodarcze) jest transport produktów z miejsca ich wytwarzania do miejsca sprzedaży. Jeśli punktów odbioru jest kilka, pojawia się potrzeba wyboru optymalnej trasy przejazdu. Prawidłowe sformułowanie problemu i jego rozwiązanie umożliwia redukcję kosztów transportu i czasu przejazdu. W artykule przedstawiono wyniki badań i symulacji dotyczących optymalizacji...
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