Wyniki wyszukiwania - BazTech

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BIM-based process management model for building design and refurbishment

Ustinovichius L., Popov V., Cepurnaite J., Vilutienė T., Samofalov M., Miedziałowski C.

Archives of Civil and Mechanical Engineering

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2018

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Vol. 18, no. 4

1136--1149

EN

A conceptual model of BIM-based design and refurbishment, based on pre-built indicators and allowing the assessment of the building energy demand and eco-building parameters, is presented. The new approach presented in this model creates a knowledge-based decision-making environment for refurbishment strategies and quality control, in this way creating the preconditions to bridge the gap between expected and actual energy performance. The model with integration of new BIM-based optimization subsystems enables energy management and optimization processes. For a comprehensive evaluation of refurbishment measures, it is suggested to include energy efficiency, eco-efficiency, and economic parameters.

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Modeling the optimal structure for territorial technogenic safety system

Popov V., Chub I., Novozhylova M.

ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes

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2015

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Vol. 4, No 3

79--84

EN

Turbulence surrounding of the development programs of territory technogenic safety systems impacts the implementation of the program. Thus, it raises the need to design constructive tools of mathematical modeling configured to the phases of the development program in order to increase the efficiency of applying limited human, financial material, time and other resources being involved to solve the problem of technogenic safety systems. We consider both a static optimization model of the technological safety system structure and dynamic one taking into account the state of fixed assets of potentially dangerous industrial object, composition and quantity of hazardous substances being applied and stored at some industrial object, other factors that determine the potential possibility of technogenic incident occurrence. As criteria of the problems one can use forms of known criteria that allow to assess the economic efficiency of different technological safety systems. The main constraints of static and dynamic optimization mathematical models have been proposed and analyzed. In common the problems being considered are stochastic discrete (discrete-continuous) problems of multi-criteria optimization, and their decision is based on the implementation of the branch and bound approach. The approach allows organizing iterative algorithm to identify desired parameters of TTSS development program product.

3

The analysis of concreting process impacts on the behaviour of residual liners of cast-in-situ voided slabs

Valivonis J., Popov V., Jonaitis B., Daugevičius M.

Archives of Civil and Mechanical Engineering

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2015

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Vol. 15, no. 4

997--1006

EN

This article reviews stresses caused by technological processes of concreting making an impact on void liners in reinforced concrete structures, and discusses the principles of void design. Through the application of numerical modelling, the paper considers the stress–strain status of the liners forming plastic residual voids under the loads acting in the floor slab. The authors provide a design solution to the liners forming voids.

4

The plasma technologies for the processing of carbon containing raw materials

Borysenko M., Lelyukh M., Petrov S., Zhovtyansky V., Chernets O., Korzhyk V., Marynsky G., Kostash S., Popov V.

Prace Instytutu Nafty i Gazu

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2009

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nr 162

52-57

EN

The electric arc plasma equipment allows to reach the extreme temperatures in any technologies of carbon containing raw materials processing into gaseous products. In this connection our institutions carried out the environment-friendly technology and equipment for air and steam plasma gasification of medical waste as well as household waste or any other carbon containing raw materials. This technology guaranties destruction of thermally-stable bacteria and excludes the formation of dioxins and furans. The gaseous products, to be obtained in this process, may be used as alternative fuel or starting material for synthetic liquid fuels production. The modern level of prices on fuels and energy supply make it economically attractive. The technology of alternative fuel production may be considered automatically as environment-friendly one as it was developed from the equipment for destruction of medical waste.