Magazine of Civil Engineering, №2(28), 2012
Hydraulics. Combustion Engineering. Engineering networks and systems of buildings.


 STRUCTURES

Search
 
Дополнительное образование по направлению Строительство

Журнал Гидротехника

Subject plan
for this half-year



Heat loss of underground channel heat pipelines with strained thermal insulation layer, taking into account radiative heat transfer in the cavity of the channel

G.V. Kuznetsov, V.Yu. Polovnikov
Heat loss of underground channel heat pipelines with strained thermal insulation layer, taking into account radiative heat transfer in the cavity of the channel (rus)

During the work the numerical analysis of thermal insulation layer deformation effect and radiation heat transfer in the cavity of the channel influence on thermal conditions and heat losses of underground channel pipelines was achieved.
Read the article >>>

Complex analysis of energy efficiency of public buildings: case study of VGTU

V. Motuziene, K. Valancius, G. Rynkun
Complex analysis of energy efficiency of public buildings: case study of VGTU

The purpose of this work was to make analysis of energy efficiency of Vilnius Gediminas Technical University (VGTU) buildings. The survey was performed within the frame of the Intelligent Energy – Europe (IEE) project “Use Efficiency” – Universities and Students for Energy Efficiency.
Read the article >>>

 METHODS
Testing of calculation method of the enclosing structures temperature-humidity conditions on the results of indoor climate in-situ measurements

S. V. Korniyenko
Testing of calculation method of the enclosing structures temperature-humidity conditions on the results of indoor climate in-situ measurements (rus)

In this article the results of indoor climate parameters in-situ measurements are used for testing the method of temperature-humidity conditions calculation in three-dimensional areas of enclosing structures developed by the author.
Read the article >>>

Air filtering through the building envelope

D. V. Petrosova
Air filtering through the building envelope

When the air-permeable building envelopes are used, the heat flow is moved away also due to the air filtering. It is proposed to take into account the convective heat transfer mechanism commensurate with the conductive heat transfer mechanism. In the formula for determining the heat flow due to the air filtering the filtration coefficient of air through the building envelope is used.
Read the article>>>

The use of Norilsk region’s sulfur and hes ash for hydraulic engineering and reconstruction

A. G. Sotnikov, A. A. Borovitskiy
Theoretical and experimental validation of the air changes in industrial ventilation optimization method (rus)

The proposed in the article new term equivalent-effective rate is rather universal concept, which allows to compare the effectiveness of hazards trapping for different design, technological and aerodynamic parameters of the source and the suction of any kind. 
Read the article >>>


 CALCULATIONS
 

D. R. Absalyamov
Improving the engineering systems reliability by formalizing the failure search (rus)

In the article a method of the failures search formalizing by efficiency indicators of energy resources in heating, ventilation and air conditioning of buildings and structures is proposed. The main feature of this method is the combination of the educational process and the procedure of selecting a minimal set of controlled parameters.
Read the article>>>
The influence of control algorithm on the annual energy consumption of automated climate systems

O. D. Samarin, S. S. Azivskaya
The influence of control algorithm on the annual energy consumption of automated climate systems (rus)

In the paper the estimation of energy consumption of the automated ventilating systems and air conditionings (V and AC) under condition of their regulation "on deviation" is reviewed. The outcomes of numerical calculation of a non-steady thermal mode of a room with the computer program designed by authors are adduced.
Read the article>>>
New relationship for determining the coefficient of hydraulic resistance in the transition zone of resistance (from laminar to turbulent flow)

A. M. Kalyakin, E. V. Chesnokova
New relationship for determining the coefficient of hydraulic resistance in the transition zone of resistance (from laminar to turbulent flow) (rus)

To determine the pressure loss of liquids in pipelines during the transition from laminar to turbulent motion several dependencies for the coefficient of hydraulic friction are found. The implementation of the process can be performed either by using elementary computational devices, and using the computer program.
Read the article>>>

 ANALYSIS

M.A. Mikhalev
Free flow velocity of high-drag particles in liquid (rus)

The numbers, similarity criteria and criterial equations are determined. Proposed dependences have generalizing properties, if the conditions belong to the same class. In case of equal numbers of similarity, such phenomena are described by the same dependencies.
Read the article>>>
Dynamics of the water flow, appearing during navigation lock chamber drawdown

D.А. Miltsin
Dynamics of the water flow, appearing during navigation lock chamber drawdown (rus)

Calculations on the numerical model, described in this paper, allow to analyze the hydrodynamics of water flow that occurs when the chamber is drawdowned, and evaluate the work of flow energy quenching system at the outlet of the tailrace.
Read the article>>>
Contact us Site map
All rights reserved. When using the information from this site the mention of the resource is obligatory