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Software for Indoor Microclimate Control

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Applied Program Package for Modeling of Indoor Microclimate and Diffusion of Gas and Aerosol Admixtures Within Living and Production Rooms

Tech Area / Field

  • BIO-SFS/Biosafety and BioSecurity/Biotechnology
  • ENV-EHS/Environmental Health and Safety/Environment
  • INF-SOF/Software/Information and Communications

Status
3 Approved without Funding

Registration date
23.05.2002

Leading Institute
State Research Center of Virology and Biotechnology VECTOR, Russia, Novosibirsk reg., Koltsovo

Collaborators

  • University of Alabama at Birmingham / School of Engineering, USA, AL, Birmingham

Project summary

Environmental quality in the workplace is presently a subject of great concern. This project will develop techniques, which can be used to calculate airflow, temperature, humidity, and pollution distributions in a room having a complex design.

This technique can be used in a number of basic fields, in particular for the design of clean production rooms (CPR). Here the problem of ensuring cleanliness, meeting strict requirements for pollutant concentration, air temperature and humidity is a challenge to designers.

The use of CPR is of great importance in the microelectronic, pharmaceutical, medical and microbiological industry. Failure to meet the requirements for technological microclimate can result not only in the degradation of product and test results.

The design of ventilation systems for production rooms, in which a technological process emits hazardous pollutants, imposes somewhat different demands. A properly designed ventilation system should provide necessary cleanness, microclimate and comfort in work places. This is particularly true of metallurgy, construction materials, and some chemical industries.

Laboratory modeling is prohibitively expensive. Such out of date methods can’t provide reliable predictions of air flows and heat-and-humidity transfer in the room.

The numerical modeling, as proposed in this project, is a quick and effective instrument. This project will develop a sufficiently universal applied program package (APP) designed for modeling of three-dimensional turbulent airflow inside a room having a complex geometry and furnishings.

In the development of the APP designed for modeling indoor microclimate the following problems should be taken into consideration:

· Calculation of three-dimensional air flows within a room with consideration for partitions, equipment, sources of heat and moisture, pollutants and ventilation system;

· Calculation of indoor temperature distribution;

· Calculation of indoor distribution of humidity and condensation of the vapors;

· Calculation of indoor pollutant concentration;

The team of the project participants has a great experience in theoretical studies of diffusion of gas and aerosol admixtures in atmospheric boundary layer. The methods of modeling used in the indicated studies can be applied basically to the description of the indoor heat, moisture and mass exchange. It is caused by the similarity of the systems of differential equations describing the considered processes in the atmospheric boundary layer and the indoor ones. Thus the scientific and practical potential accumulated by us allows launching the solving of the problem indicated above.

According to the aforesaid the work will involve the solution of the following problems. Formulation of a correct physical and mathematical setting of the problem. Adaptation of the algorithms and methods developed before to the description of the indoor heat, moisture and mass exchange taking into account the accumulated practical experience considered above. Development additional algorithms and methods needed for solution of the problem. Debugging and testing of the applied program package using published theoretical and experimental data. Development of service programs for convenient work with the package.

As a whole, the applied program package that will be developed in the frames of the project can be considered as a commercial product capable to compete successfully with the analogues at the market of scientific ideas and high technologies.


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