This article presents a comparative analysis of two prominent machine learning techniques for predicting electricity consumption in workplace lighting systems: polynomial regression and artificial neural networks. The primary objective is to assess their suitability applicability developing an accurate predictive model. After brief overview the current state energy-saving techniques, examines several established models energy buildings systems. These include networks, support vector...

Agricultural and other residues are promising renewable energy sources. However, they can cause problems in combustion processes. One of these is also low ash melting temperatures. Except, the behavior be impacted by many factors, such as preparation or used atmosphere. This article deals with comparing different atmosphere conditions during measurements temperatures three agricultural pellets: alfalfa, straw, hay. The first one was oxidizing compressed air nitrogen. second reduced purge,...

The high-energy requirements of cleanrooms are the main motivation for optimizing their operational conditions. ventilation system consumes most energy in order to ensure precise air conditioning room (filtration, temperature, and humidity adjustment). function is keep particle concentration a minimum. This work deals with optimization an experimental operating via supply through distribution element (laminar airflow ceiling) range 0.15–0.25 m·s−1. laminar between patient influenced by light...

The COVID-19 pandemic has caused huge health and economic damages. Various protective face masks, such as single-use, cotton, the most widespread FFP2 or KN95 are used to prevent spread of this virus. However, these masks usually packaged in plastic packaging, which increases amount waste. Plastic gloves also often connection pandemic. All leads a large production equipment, but their use contributes increase type waste, presents new challenge waste management. This article investigates...

Enormous amount of protective masks was consumed in connection with the COVID-19 pandemic and they still burden environment. Therefore, it is necessary to look for possibilities their disposal an ecologically acceptable way. This article focuses on particulate matter produced concerning energy FFP2 masks. These were processed into small pieces, added spruce beech wood (in weight proportion 5 % 10 masks) formed pellets. The concentration during combustion measured by gravimetric method....

The article deals with the solution to increased level of environmental pollution by emissions solid particles from small sources. research aimed build an efficient electrostatic precipitator directly in combustion device, ensuring simple maintenance and low space requirements. During measurements on experimental equipment, average production particulate matter was measured without use precipitator. Three modes were used during measurements: minimum, optimal maximum performance. results...

The combustion leads to pollution with particulate matters (PM). These emissions are considered cause the greatest harm human health. Particulate pollutants consist of following substances: carbon, ammonium, metals, organic materials, nitrates and sulfates. This article deals analysis samples from wood biomass brown coal. analyses were carried out by elemental determinator thermogravimetric analyzer. Thermogravimetric analyzer determines composition organic, inorganic, synthetic materials....

A lot of residual biomass has energy value and can be used for further applications through suitable treatments, such as pelletization. This treatment improve properties, mainly density, but also lead to problems due their low ash melting temperatures, high content, the formation harmful compounds during combustion. article deals with potential pellets produced from spruce sawdust, bark, pine cones in different proportions. The impact cone bark contents on pellet properties was observed....

Several factors affect how particulate matter and gaseous emissions are formed during the combustion processes of biomass. The amount air, as well its redistribution, is one these factors. This article deals with performance emission parameters determined using different distributions air wood stove beech a fuel. Eighteen settings primary, secondary tertiary supplies were realized, while heat output, efficiency, matter, carbon monoxide nitrogen oxides measured or determined. aim this to...

It is necessary to reduce dependency on fossil fuels for heating and waste generation, while also utilizing the energy potential of materials. One possibility create fuel pellets where makes up a small proportion so that properties wood are not significantly altered with. This article investigates usage containing spent coffee grounds (5 % or 10 %) face masks %), with spruce sawdust as primary input material (80 90 %). The elemental, thermogravimetric, calorific value, mechanical durability,...

Abstract Phytomass, a renewable energy source, faces the challenge of ash agglomeration due to its low fusion temperature. To address this, chemical modification (adding additives) and co-combustion with other fuels are explored. This study focuses on combustion phytomass wood biomass mechanical modifications chamber. The goal is maintain chamber temperature below point. Modifications included modulated burner water cooling. Combustion in ratio 60/40, 40/60 20/80 had beneficial effect...

The combustion of biomass is accompanied by the formation particulate matter, presence which in atmosphere harms human health. It important to show issues reducing these pollutants and their impact on This article focuses process combustion. used model consists two parts: chamber flue gas tract. shows four types modification tract designed reduce amount matter atmosphere. Baffles are located tract, capture matter. final simulated turbulent–viscosity models, k-ε realizable model, then k-ω...

With the combustion of solid fuels, emissions such as particulate matter are also formed, which have a negative impact on human health. Reducing their amount in air can be achieved by optimizing process well flue gas flow. This article aims to optimize tract using separation baffles. design make it possible capture three baffles and prevent from escaping into gas. The geometric parameters first baffle were changed twice more. dependence flow was observed computational fluid dynamics (CFD)...

Alternative biomass makes up a considerable portion of the waste from processing in forestry and agriculture. The aim this work was to create pellets several sources alternative biomass, e.g., lawn clippings, corn husks, linden leaves, pine needles, which were compared pure wood pellets. Analysis fuel properties focused on their chemical composition, thermogravimetric analysis, calorific values, ash melting temperatures. power emission parameters fuels determined via an automatic pellet...

Various waste materials have energy potential. It is important to make use of this potential and prepare the product for further by treating waste. Treatments such as compressing into pellets leads increasing density fuel, which benefits transport storage costs. However, low bulk density, high ash content, low-ash melting temperatures, calorific values non-woody can cause problems during their combustion. This article deals with usage walnut shells, were blended spruce sawdust in various...

Capturing particulate matter (PM) is an important issue due to the protection of human health and quality their life. This paper describes innovation affordable capture device for small heat sources reduce emissions. The design two investigated variants based on principle a tubular electrostatic precipitator with one charging electrode placed in chimney. precipitators aimed at increasing area collecting electrodes by elements dividing precipitation space, simultaneously increased number...

The combustion of biomass is relatively complicated. To minimize the emission production it necessary to ensure optimal setting process. article deals with impact bark content in wood on performance and parameters a small heat source. increasing changes its chemical composition parameters, namely net calorific value, ash content, fusion temperature others. During experiments samples pellets made from spruce having 1, 2, 5 10 percent together reference sample without any were burned. burned...

Air quality and air pollution are important issues, thus it is necessary to look at possibilities for how decrease emissions in the atmosphere affordably effectively. This article focuses on solid aerosols, specifically particulate matter, design of a low-cost solution their atmosphere. The mass concentration matter with proposed optimized electrostatic precipitator was measured compared measurement without its implementation. Based results, can be concluded that designed ESP type could...

The COVID-19 pandemic brought a period of high consumption protective masks and an increase in their waste. Therefore, it was necessary to look at possibilities for disposal. This article is focused on the disposal FFP2 form pellets blended with sawdust. Further, ash melting behavior observed. method preparation can impact resulting values temperatures. this investigates temperatures determined during different preparations, such as (550 °C 815 °C) size (non-sifted, smaller than 50 µm 100...

The biomass combustion process affects several aspects, fuel properties, amount and distribution of air others. One these aspects is the geometric shape, respectively batch shape. This work deals with influence shape in a small local heat source. As an experimental source was used fireplace insert rated thermal output 13 kW. experiment consisted 4 different dose alternatives tests, which determined efficiency insert, oxygen carbon dioxide content flue gas, production gaseous monoxide...

At present, we are still feeling the effects of COVID-19 pandemic in connection with huge amount waste generated. However, reuse produced other processes requires energy consumption. This article deals face masks FFP2, which were added as an admixture to spruce or beech sawdust and then processed into pellets. During production process pellets, consumption was measured further converted one ton also reflected price electricity. After storage, mechanical durability dimensions individual...