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This article attempts to answer the question whether it is appropriate to use generally known laws in each case. In this particular case it comes to the demands Betz'a. Author assess the appropriateness of its use in the case of reaction turbines citing similar cases in the field of fluid mechanics. Too hasty application of the rights in each case could harm the development of the device, which are...
The aim of the study was to determine the characteristic velocity of mixtures for different particle properties (density and diameter). The studies showed divergences in calculated and experimental velocities. The influenced by the diameter of the particles and the density was on the segregation less affected less affected.
Algae biomass is increasingly regarded as a potential resource that could be used to produce biofuels, electricity and heat. Algae contain a lot of nutrients, so they can be used as food for humans and livestock. In this work different types of photobioreactors were characterized.
This paper presents the characteristics of organosilicon chemical compounds occurring in the biogas. Article shows the dangers of energy-targeted use of biogas contaminated by these substances. As part of the research has been developed program, parameters of the chromatographic analyzes and prepared calibration curves for selected siloxanes.
The article presents a project to improve energy efficiency. The study shows how low rate SPBT can be achieved through the implementation of the project
The paper presents the methodology of analyzing the impact of technical and economic parameters on the specific cost of heat production in CHP station in cokery. The value of the specific cost of heat production is relative to the technology in which it is generated. Technology determines the level of the investment necessary to build a combined heat and power plant, its energy efficiency and the...
The complex water transport through the matrix and aeration pores in AAC has been analysed, in the context of water absorption. The water uptake experiment was performed on the AAC samples with three different apparent densities. The resulting early and late sorptivities for the chosen densities were compared showing their nonlinear character.
This paper presents the design and implementation of device for remote and automatic monitoring of temperature field of large objects like pipes, PV fields and building complexes. With help of originally designed system based on commercial low cost unmanned aircraft vehicle equipped with an open source software and commercially available infrared camera, thermal imaging was performed.
The using of adsorption processes is a very good method for water purification from fluoride ions due to its high effectiveness and simple application. The adsorption properties of activated carbon and modified activated carbon were compared. Modification process was carried out by using manganese chloride and potassium permanganate. It was proved that the pH of adsorption process plays a key role...
Biochar has been recently under extensive study. It can be used in agriculture, environmental protection, reclamation, cleansing of ground water and power engineering. But all in all the study is concentrated on improving soil fertility, thus improving the quantity of harvested crops. The need for study of after mentioned improvement of soil fertility comes from the global need to find an alternate...
In the paper general information about the basic parameters of the fermentation process and also the most frequently used substrates were presented. Additional constructed test stand of reactor with equipment is showed which will be used in the study of fermentation and co-fermentation of sewage sludge for biogas production.
Biomass fraction of SRF is significant in several respects in the international protocols relating to the control of greenhouse gases. Biomass is considered to be neutral in terms of carbon dioxide emissions, as released from biomass combustion CO2 is recycled in the process of photosynthesis. Quantitative determination of the biomass fraction of SRF is important economically, especially for the cement...
The impact of three different ways of encoding for mathematical multi-criteria comparative analysis is discussed in this paper. The analysis is aimed at the selection of the most suitable alternative installation for heating a building and preparing hot domestic water.
The aim of the thesis is to analyse the influence of technological changes in the food-processing company on the quality of the product and its technological parameters on the example of the production cycle of fruit jam.
The purpose of this article is to answer whether the concept of solutions for Smart City is enough to the urban areas to minimize the effect of congestion. The article explained concepts such as intelligent city, congestion and traffic jam. They were also presented intelligent solutions that can successfully reduce congestion in cities. The author presented the situation of Polish towns in the area...
The paper presents the results of heavy metals leaching from metallurgical slag obtained in the tank leaching tests. The tank test is used for waste materials in moulded or monolithic form. The cumulative leaching of components after 64 days of the test was calculated. The effect of contact time of leachant with waste on the leaching was also determined.
The paper describes an efficiency of different type air source heat pump with integrated tank. Furthemore, paper characterizes basic construction elements such as: compressors, condensers, evaporators and the control valves. Authors presents the principle of operation of air source heat pump. The paper presents the current norm EN 16147 for calculating the coefficient of performance of heat pumps...
The environmental conditions in which concrete is used greatly affect its durability. During designing of concrete for various applications, these conditions must be taken into account. Various types of corrosion of concrete are presented in this paper.
The coagulation process is commonly used in water and wastewater treatment processes. During coagulation flocs are formed, and are characterized by different shapes, structures and dimensions. Because of this, removing of this particles may produce some problems for researchers, cause the sedimentation way of this particles is disturbed.
tallation scheme of whey instantization developed by author is show in the article. The construction and the way of work of instantizator which will be used to do in further research on whey drying parameters is describe in this article.
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