Particulate matter (PM) from solid alternative fuel combustion poses environmental and health concerns. This research investigates atmospheric composition, sample fractions, chemistry effects on PM. TSI Scanning Mobility Particle Sizer Aerodynamic quantified PM emissions during Refused Derived Fuel combustion. Nine samples were tested in the thermogravimetric analyzer for different fractions atmospheres: Air, 100% N 2 , O . Results revealed complex links between concentrations of size...

The article deals with the problem of pool boiling heat transfer enhancement on metal wire mesh coatings made copper and phosphor bronze at nucleate distilled water high purity ethyl alcohol under ambient pressure. tests have been performed horizontal samples containing different microstructures produced sintering technology. were attached to heating block soldering. As a result experiments, curves obtained, describing relationship between dissipated flux superheat values for each specimen....

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 paper discusses the issue of boiling heat transfer augmentation on phosphor bronze wire mesh coatings during nucleate for distilled water and ethyl alcohol under ambient pressure. A significant enhancement flux has been recorded such treated surfaces in comparison to smooth reference surface. obtained results have discussed compared with models correlations available literature.

The paper presents the problem of heat transfer enhancement with application multilayer metal mesh structures during boiling ethyl alcohol at ambient pressure. preparation samples involved sintering fine copper meshes base in reduction atmosphere order to prevent oxidation samples. experiments included testing up 4 layers meshes. Significant augmentation is possible, however, considerable number actually hinders conditions and leads flux transferred from heater surface.

The assessment of heating systems is not only interested in the efficiency system itself, but also quality environment that creates. and heat-humidity microclimate closely related to thermal comfort. A suitable has a positive effect, for example, on work at workplace. range temperatures, humidity operating temperatures workplaces often legally prescribed such way there no discomfort users heated space. In terms savings, it therefore best use can create comfortable with lowest possible energy...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Jozef Huzvar, Andrej Kapjor; MICRO‐COGENERATION INCL. THE CONVERSION OF CHEMICAL ENERGY BIOMASS TO ELECTRIC AND LOW POTENTIAL HEAT. AIP Conference Proceedings 20 June 2011; 1337 (1): 40–42. https://doi.org/10.1063/1.3592440 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...

This paper deals with the transfer of heat-driven heat surface area in relation to construction criterion equation for “n” horizontal pipe one about another. On bases theoretical models have been developed calculating thermal performance natural convection by Churilla and Morgan, various diameters temperatures. These were compared created CFD-Fluent Ansys same boundary conditions. The aim analyse fluxional fields „n“ pipes another at is creation on basis which output from oriented areas...

The report deals with using of thermovision for analysis heat transfer. It discusses the use these methods to transfer in experimental measurement floor convector and tubular heater natural convection.

Objective of the experimental facility and subsequent measurements is generally determine whether expected physical properties verification, identification real behavior proposed system, or part thereof. For design heat exchanger for combined energy machine required to identify verify a large number parameters. One these are boundary conditions pellets burner.

The article presents the research of thermal comfort based on Fanger model. was conducted in three educational rooms. study involved 98 people whose age is between 19 and 23 years old. consisted measuring parameters environment. During research, students completed surveys regarding sensation. On basis predicted mean vote PMV score percentage dissatisfied PPDs were determined. This made it possible to compare assessment respondents with those indicated according standard, which showed that...

During each operation of the ventilation system, noise is generated, which related to fan during transport air. Attention must be paid this noise, as and depressions caused by are transmitted through pipes air distribution elements thus disturb indoor environment buildings. Each part system either absorbs or generates noise. Noise propagating generated in fittings can reduced several ways, for example dimensioning pipes. However, vibration that occur directly handling unit eliminated another...

These article deals with heat transfer from "n" horizontal pipes one above another at natural convection. On the bases of theoretical models have been developed for calculating thermal performance convection by Churilla and Morgan, various pipe diameters temperatures. were compared created in CFD-Fluent Ansys same boundary conditions. The aim analyze fluxional fields about is creation criterion equation on basis which output oriented areas given spacing could be quantified.

The paper discusses the use of different structural coatings for pool boiling heat transfer. There are a few most common types such coverings as meshes, sintered powders and fibers, however, they generally enhance in relation to smooth surface. article focuses on wire mesh microstructures due their advantages practical design phase – change exchangers.

Wheat straw, as a secondary waste agricultural product, presents potential renewable source of energy. It is necessary to design simple heat sources achieve better usage. As part an analysis sources, tubular type exchanger was reviewed. The the focused on smallest possible dimensional requirements, low costs, high reliability and easy maintenance. We chose exchanger. In our case, flue gas flows through tubes, water outside tubes. This allows for continuous cleaning, but also maintenance,...

The issue of thermal comfort and its subjective feelings inside a building is becoming more important in the modern world. It caused by desire to create optimal conditions places where people stay. article presents two methods, indirect direct, which are typically used research projects. These methods enable assess sensations compare respondents with value PMV (the human sensations) calculated using formula from ISO 7730 standard questionnaire surveys.

Surface Treatment Technologies for Boiling Heat Transfer augmentation ORMAN Łukasz J., RADEK Norbert, KAPJOR Andrej Abstract. The paper discusses different methods of surface treatment the production efficient phase – change heat exchangers. Special focus is given to sintered metal mesh microstructures and laser treatment. boiling transfer described […]

The report deals with experimental measurement of influence geometry bath floor convector on his performance in the thermostatic chamber natural convection. Purpose is to find slope performance.

The aim of the analysis heat and fluxional pipe fields"n" pipes one above another at natural convection is creation criterion equation on basis which output transfer from oriented areas with given spacing could be quantified. For creating criteria-relation calculating Nusselt number for "n" tubes other were used computational data Ansys-Fluent software equations a single tube. Based horizontal tube will criterial according to Morgan. themselves derive criteria evaluated calculated adjusted...

A membrane-based enthalpy exchanger is a device used for heat and humidity recovery in ventilated buildings. The energy-saving potential of such dependent on the parameters responsible moisture recovery. trend toward composite membranes, which are custom produced, their can be adjusted given application; therefore, diffusion sorption characteristics membranes unknown. In order to obtain values water vapor diffusivity three investigated handmade serial resistance model using Field Laboratory...

Abstract Currently, more and emphasis is placed on building energy-efficient buildings from the highest quality materials to keep heat energy losses as low possible. Relatively, such are much expensive than traditional due technology that used in them. This applies HVAC systems, renewable sources etc. paper presents correctness of thermal insulation Energis intelligent at Kielce University Technology with use a imaging camera. Measurements photos were taken outside inside building, winter,...

Boiling is a phase-change phenomenon, which of significant practical application potential due to large heat flux values exchanged in the process. The paper provides an overview calculation methods that enable determine pool boiling on smooth surfaces. most commonly used correlations were analysed and phenomenon occurring surfaces has been discussed based experimental data. A modification Rohsenow model proposed with constants determined experimentally.

Abstract Cleanrooms, essential in various industries, demand strictly controlled environmental conditions, which significantly impact building energy consumption. High-efficiency air handling systems are crucial these environments to ensure a continuous supply of clean and removal contaminants. However, the substantial requirements pose significant challenge sustainable operations. This study focuses on an innovative approach reduce consumption cleanrooms through optimization laminar...