Mathematical Modeling of Heat Transfer Processes in the Systems of Environmental Diagnosis of Locomotives –Tunnels
Journal Title: Вісник Харківського національного університету імені В. Н. Каразіна серія "Екологія" - Year 2017, Vol 0, Issue 16
Abstract
Purpose. Increasing the accuracy of advanced systems for the ecological diagnosis of diesel locomotives - microtunnels in determining one of the main toxicity indicators of exhaust gases of a diesel engine - mass emission of particles. Methods. Mathematical modeling, experimental studies, computational experiment, analysis and synthesis of information. Results. The technology of measuring the mass ejection of solid particles is analyzed. A mathematical description of the heat transfer process in a tunnel, consisting of a system of differential heat transfer equations and single-valued conditions in a dimensionless form, is developed. The criterial equation for calculating the heat transfer coefficient at the flow-wall boundary in any tunnel has been experimentally determined and tested for adequacy. Conclusions. The heat transfer process at the tunnel-wall boundary in various systems of ecological diagnostics of diesel locomotives was studied theoretically and experimentally. The criterial heat transfer equation in the tunnel is obtained, the use of which makes it possible to increase the accuracy of advanced systems for ecological diagnosis of locomotives - microtunnels.
Authors and Affiliations
A. P. Polivyanchuk
Keywords
Related Articles
- EP ID EP298525
- DOI -
- Views 74
- Downloads 0
Mathematical Modeling of Thermal State Gas Samples in The Environmental Diagnosis Systems of Vehicle Engine
Purpose. Improving the accuracy of ecological diagnostic systems of transport engines – tunnels in the determination of one of the main indicators of toxicity engine exhaust gases - the mass emissions of particulate matt...
Вплив розміру ставки рентної плати за використання підземних вод на екологічний статус водних об’єктів у країнах ЄС
<p><strong>Мета. </strong>Проаналізувати взаємозв'язок між екологічним статусом водних об'єктів та розміром ставки рентної плати за використання підземних вод. <strong>Методи.</strong> Використовувався комплекс загальнон...
On the question of the formation of agricultural geographic information systems
The necessity of the use of GIS technology for agriculture is shown. The article deals with methodological issues of formation of local agricultural GIS. The specific character of the agrarian GIS structure is discussed...
Using of Structurally-Geographical Methodology for Setting Norms for Anthropogenic Contamination of Aquatic Landscapes
Purpose. Determining the actual toxicity levels and setting standards for maximum acceptable levels of toxicity to over 100 releases wastewater into water bodies. Methods. Biological testing, synthesis. Results. Through...
Дослідження фітопланктону Одеської затоки в 2016-2017 рр
<p><strong>Мета. </strong>Вивчення сезонних змін кількісних характеристик фітопланктону та біорізноманіття угрупувань, зокрема, видового складу потенційно небезпечних (токсичних) видів. <strong>Методи. </strong>Збір та а...