Adam Ujma - Academia.edu (original) (raw)
Papers by Adam Ujma
In 2019, 99% of people in the world lived in areas violating WHO's recommended air quality indica... more In 2019, 99% of people in the world lived in areas violating WHO's recommended air quality indicators. By WHO's estimation, in 2019, air pollution caused 4.2 million premature deaths worldwide. The most harmful are PM2.5 particles, which penetrate the blood through the aerogematic barrier causing cardiovascular and respiratory diseases and cancer. PM10 can pass deeply into the lungs, but they are not so harmful. People always believed that rural air is healthy. Research at the University of Minnesota showed that 18 000 Americans die every year due to air pollution by agriculture, primarily, ammonia (NH3) from the decomposition of fertilizers and livestock waste (12.4 thousand deaths), and PM2.5 particles (4.8 thousand deaths). In polluted areas, plants have more aggressive allergenic pollen. Agricultural waste management and optimization of landscapes are effective ways of solving the problem. In this work, solutions are proposed to improve the air safety of agrocenoses. Minimization of contact of waste with air and its utilisation as soon as possible allows for avoiding decomposition. Converting to gasification boilers/ovens avoids releasing PM2.5 by heating. In addition, plants capable of purifying the air from relevant pollutants should be introduced in agrocenoses. The places for planting are forest protection strips, free places near roads, residential and administrative buildings, etc. In particular, the use of hedges with such plants can provide a local oasis of clean air around houses. In the case of dense land use and lack of free space, it is possible to introduce "green structures" on buildings. An assortment of plants for different regions of Ukraine is offered.
22nd International Scientific Conference Engineering for Rural Development Proceedings
In 2019, 99% of people in the world lived in areas violating WHO’s recommended air quality indica... more In 2019, 99% of people in the world lived in areas violating WHO’s recommended air quality indicators. By WHO’s estimation, in 2019, air pollution caused 4.2 million premature deaths worldwide. The most harmful are PM2.5 particles, which penetrate the blood through the aerogematic barrier causing cardiovascular and respiratory diseases and cancer. PM10 can pass deeply into the lungs, but they are not so harmful. People always believed that rural air is healthy. Research at the University of Minnesota showed that 18 000 Americans die every year due to air pollution by agriculture, primarily, ammonia (NH3) from the decomposition of fertilizers and livestock waste (12.4 thousand deaths), and PM2.5 particles (4.8 thousand deaths). In polluted areas, plants have more aggressive allergenic pollen. Agricultural waste management and optimization of landscapes are effective ways of solving the problem. In this work, solutions are proposed to improve the air safety of agrocenoses. Minimizatio...
22nd International Scientific Conference Engineering for Rural Development Proceedings
Today greenhouses are transformed. In the middle of the past century, they were almost glazing bu... more Today greenhouses are transformed. In the middle of the past century, they were almost glazing buildings above the ground. Due to the development of planting technologies, including mats or trays with substratum, aero – and hydroponics, etc., greenhouses now can be anywhere, including underground. This gives impetus for urban agriculture with optimal logistics (growing near consuming). Indoor green structures become more and more popular. The illumination of them is very important because plants lose decorative properties in unfavourite conditions. At the beginning of this century, there was an analysis of a lot of failed attempts to create winter gardens on underground floors. The illumination was calculated successfully by today’s norms, but the plants withered. This is because the norms were developed for natural-illumination greenhouses. Usually, the illumination is measured in lux or μmol/day. The first unit is weighted by wavelength according to the people’s eyes sensitivity. ...
22nd International Scientific Conference Engineering for Rural Development Proceedings
Thermal insulation of pipelines is used in different industries including agricultural technologi... more Thermal insulation of pipelines is used in different industries including agricultural technologies. Energy efficiency depends on heat losses, which, in turn, are limited by heat insulation. Decentralized ventilation is effective in rural low-rise buildings. One such device used is a regenerative ventilator like Blauberg Vento or Vents TwinFresh. There is a task to improve the efficiency of its operation. Investigation of heat recovery processes in thin ducts is taking place. Experimental uncertainty decreases with better heat insulation of the experimental setup. But in heat transfer literature, there is a notion of the critical radius of insulation. More the insulation radius should decrease its effectiveness due to the development of the outer surface. In the theory, the heat transfer coefficient of the outer surface is assumed to be constant. In this study, laminar convective flow around the outer horizontal cylindrical insulation surface of a large thickness is considered. The ...
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
People modify 56% of the Earth's land. The world trend is changing from rapacious to considered i... more People modify 56% of the Earth's land. The world trend is changing from rapacious to considered influence such as green construction/production. Nevertheless, the terroristic war of the Russian federation against Ukraine causes the chaotic destruction and snowballing emissions from shell bursts and fires. Reclamation of land should attempt to repair the hugely dangerous influence of this, especially in the temporarily annexed lands of Ukraine. Donbas was one of the most stressed regions due to active mining and other industries, and contained more than 38% of Ukrainian damaged lands. The war deepens the situation. The most natural reconstructive measure is greening. The authors analysed the requirements for greening to gain the maximum benefits. Enduring and effective plant assortments were proposed for the region. For sanitizing the environment, experiments were performed with phytoncide activity using a photographic paper method. It was found and recommend that new phytoncide plants-Japanese quince (Chaenoméles japónica) and barberry (Bérberis)were most effective.
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations
The combined use of low-potential soil heat and air flows in heat pump heat supply systems allows... more The combined use of low-potential soil heat and air flows in heat pump heat supply systems allows for its regulated redistribution in the processes of customers’ consumption. Herewith, the intensity of energy extraction by the soil heat exchanger decreases, excess heat is accumulated with a decrease in the depth of wells, and the costs of installing and operating probe heat exchangers are also reduced. An improved version of the conceptual arrangement of a vapor compression system for heat and cool supply of buildings based on the integrated heat of soil and ventilation air has been developed. Its distinguished features are the possibility of automatic redistribution of generated heat flows in the subsystems of customers’ heat consumption and accumulation of excess part in the soil mass. When the system is operating in the warm season with the extraction of heat only for hot water supply, there is a more intensive accumulation of excess heat of the ventilation air in the soil mass, ...
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Zeszyty Naukowe Politechniki Częstochowskiej, 2021
Global competition is setting new rules for the release and sale of products. Success is possible... more Global competition is setting new rules for the release and sale of products. Success is possible thanks to the introduction of effective tools in modern information technologies, which allow simulation of the process of production and supply, calculate the time spent and eliminate problematic issues with production, etc. Production planning, the first stage of product creation, is possible through the involvement of modeling. Our work aims to analyze the main stages of creating a simulation model in the FlexSim environment, to determine the interconnected impact of different parameters on the work of individual elements and the technological system in general. The automated technological process is considered as a multi-parameter system where input and output are interconnected. Each element of the process can be defined as a separate model, where the input of the initial data takes place, and at its output, we get the expected action that was programmed. The model created is considered by FlexSim as a system consisting of related parameters. The formed complex of optimal parameters in the production process is applicable, in particular, to the construction industry when solving decision-making tasks.
In 2019, 99% of people in the world lived in areas violating WHO's recommended air quality indica... more In 2019, 99% of people in the world lived in areas violating WHO's recommended air quality indicators. By WHO's estimation, in 2019, air pollution caused 4.2 million premature deaths worldwide. The most harmful are PM2.5 particles, which penetrate the blood through the aerogematic barrier causing cardiovascular and respiratory diseases and cancer. PM10 can pass deeply into the lungs, but they are not so harmful. People always believed that rural air is healthy. Research at the University of Minnesota showed that 18 000 Americans die every year due to air pollution by agriculture, primarily, ammonia (NH3) from the decomposition of fertilizers and livestock waste (12.4 thousand deaths), and PM2.5 particles (4.8 thousand deaths). In polluted areas, plants have more aggressive allergenic pollen. Agricultural waste management and optimization of landscapes are effective ways of solving the problem. In this work, solutions are proposed to improve the air safety of agrocenoses. Minimization of contact of waste with air and its utilisation as soon as possible allows for avoiding decomposition. Converting to gasification boilers/ovens avoids releasing PM2.5 by heating. In addition, plants capable of purifying the air from relevant pollutants should be introduced in agrocenoses. The places for planting are forest protection strips, free places near roads, residential and administrative buildings, etc. In particular, the use of hedges with such plants can provide a local oasis of clean air around houses. In the case of dense land use and lack of free space, it is possible to introduce "green structures" on buildings. An assortment of plants for different regions of Ukraine is offered.
22nd International Scientific Conference Engineering for Rural Development Proceedings
In 2019, 99% of people in the world lived in areas violating WHO’s recommended air quality indica... more In 2019, 99% of people in the world lived in areas violating WHO’s recommended air quality indicators. By WHO’s estimation, in 2019, air pollution caused 4.2 million premature deaths worldwide. The most harmful are PM2.5 particles, which penetrate the blood through the aerogematic barrier causing cardiovascular and respiratory diseases and cancer. PM10 can pass deeply into the lungs, but they are not so harmful. People always believed that rural air is healthy. Research at the University of Minnesota showed that 18 000 Americans die every year due to air pollution by agriculture, primarily, ammonia (NH3) from the decomposition of fertilizers and livestock waste (12.4 thousand deaths), and PM2.5 particles (4.8 thousand deaths). In polluted areas, plants have more aggressive allergenic pollen. Agricultural waste management and optimization of landscapes are effective ways of solving the problem. In this work, solutions are proposed to improve the air safety of agrocenoses. Minimizatio...
22nd International Scientific Conference Engineering for Rural Development Proceedings
Today greenhouses are transformed. In the middle of the past century, they were almost glazing bu... more Today greenhouses are transformed. In the middle of the past century, they were almost glazing buildings above the ground. Due to the development of planting technologies, including mats or trays with substratum, aero – and hydroponics, etc., greenhouses now can be anywhere, including underground. This gives impetus for urban agriculture with optimal logistics (growing near consuming). Indoor green structures become more and more popular. The illumination of them is very important because plants lose decorative properties in unfavourite conditions. At the beginning of this century, there was an analysis of a lot of failed attempts to create winter gardens on underground floors. The illumination was calculated successfully by today’s norms, but the plants withered. This is because the norms were developed for natural-illumination greenhouses. Usually, the illumination is measured in lux or μmol/day. The first unit is weighted by wavelength according to the people’s eyes sensitivity. ...
22nd International Scientific Conference Engineering for Rural Development Proceedings
Thermal insulation of pipelines is used in different industries including agricultural technologi... more Thermal insulation of pipelines is used in different industries including agricultural technologies. Energy efficiency depends on heat losses, which, in turn, are limited by heat insulation. Decentralized ventilation is effective in rural low-rise buildings. One such device used is a regenerative ventilator like Blauberg Vento or Vents TwinFresh. There is a task to improve the efficiency of its operation. Investigation of heat recovery processes in thin ducts is taking place. Experimental uncertainty decreases with better heat insulation of the experimental setup. But in heat transfer literature, there is a notion of the critical radius of insulation. More the insulation radius should decrease its effectiveness due to the development of the outer surface. In the theory, the heat transfer coefficient of the outer surface is assumed to be constant. In this study, laminar convective flow around the outer horizontal cylindrical insulation surface of a large thickness is considered. The ...
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
People modify 56% of the Earth's land. The world trend is changing from rapacious to considered i... more People modify 56% of the Earth's land. The world trend is changing from rapacious to considered influence such as green construction/production. Nevertheless, the terroristic war of the Russian federation against Ukraine causes the chaotic destruction and snowballing emissions from shell bursts and fires. Reclamation of land should attempt to repair the hugely dangerous influence of this, especially in the temporarily annexed lands of Ukraine. Donbas was one of the most stressed regions due to active mining and other industries, and contained more than 38% of Ukrainian damaged lands. The war deepens the situation. The most natural reconstructive measure is greening. The authors analysed the requirements for greening to gain the maximum benefits. Enduring and effective plant assortments were proposed for the region. For sanitizing the environment, experiments were performed with phytoncide activity using a photographic paper method. It was found and recommend that new phytoncide plants-Japanese quince (Chaenoméles japónica) and barberry (Bérberis)were most effective.
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations
The combined use of low-potential soil heat and air flows in heat pump heat supply systems allows... more The combined use of low-potential soil heat and air flows in heat pump heat supply systems allows for its regulated redistribution in the processes of customers’ consumption. Herewith, the intensity of energy extraction by the soil heat exchanger decreases, excess heat is accumulated with a decrease in the depth of wells, and the costs of installing and operating probe heat exchangers are also reduced. An improved version of the conceptual arrangement of a vapor compression system for heat and cool supply of buildings based on the integrated heat of soil and ventilation air has been developed. Its distinguished features are the possibility of automatic redistribution of generated heat flows in the subsystems of customers’ heat consumption and accumulation of excess part in the soil mass. When the system is operating in the warm season with the extraction of heat only for hot water supply, there is a more intensive accumulation of excess heat of the ventilation air in the soil mass, ...
Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Zeszyty Naukowe Politechniki Częstochowskiej, 2021
Global competition is setting new rules for the release and sale of products. Success is possible... more Global competition is setting new rules for the release and sale of products. Success is possible thanks to the introduction of effective tools in modern information technologies, which allow simulation of the process of production and supply, calculate the time spent and eliminate problematic issues with production, etc. Production planning, the first stage of product creation, is possible through the involvement of modeling. Our work aims to analyze the main stages of creating a simulation model in the FlexSim environment, to determine the interconnected impact of different parameters on the work of individual elements and the technological system in general. The automated technological process is considered as a multi-parameter system where input and output are interconnected. Each element of the process can be defined as a separate model, where the input of the initial data takes place, and at its output, we get the expected action that was programmed. The model created is considered by FlexSim as a system consisting of related parameters. The formed complex of optimal parameters in the production process is applicable, in particular, to the construction industry when solving decision-making tasks.