Ritoldas Šukys

Economical loss due to non-compliance with requirements for personnel safety and health in Lithuanian construction sector

Abstract Research on Economic Losses (consequences) due to Failure to Ensure Occupational Safety and Health Requirements in the Construction Sector was conducted by the order of the Ministry of Social Security and Labour (contract No. 2594-AP). The conducted scientific analysis shows the state of occupational safety and health at work in the construction sector, estimates economic consequences for accidents at work, indicates the economic benefits of investment for occupational safety and health and presents the results of research, findings and recommendations. This would allow to reduce occupational diseases and the number of accidents at work and herewith to avoid economic consequences for state and construction enterprises.

Toxicity research of smouldering and flaming pine timber treated with fire retardant solutions

Abstract The emission of toxic gaseous combustion products from timber constructions influences on the time required for evacuation of people from a building during a fire. In order to prolong the time interval until inflammation of timber constructions, fire retardant solutions are used. It is relevant and very important to determine how the emission of toxic gaseous combustion products from pine timber non-treated and treated with fire retardant solutions used in Lithuania differs during thermal destruction. Measuring carbon monoxide (CO) emissions, the paper focuses on toxicity analysis determined by nonstandard and standard research methods of smouldering and flaming pine timber, both non-treated and treated with fire retardant solutions. The description comprises specimens used in research and their preparation, nonstandard and standard research equipment and methods determining toxicity of smouldering and flaming pine timber, both non-treated and treated with fire retardant solutions. The article pr...

Economical and social consequences of accidents at work and occupational diseases

Summary The main purpose of this scientific research is to estimate social and economical consequences of accidents at work and occupational diseases and prepare recommendations to avoid negative economical and social consequences. To achieve this purpose the methods of selection, poll, statistical analytical and mathematical modeling methods were used. The analysis of present workers health was accomplished and safety conditions in separate economic areas were estimated. Manufacturing, building, agricultural economy and transport companies were studied more detailed. Estimating economical consequences of accidents at work and occupational diseases these expenses were estimated: • Paid by social insurance regarding accidents and occupational diseases per year. • The missed days at work regarding accidents and occupational diseases. • Losses of working capacity are: • Regarding serious accidents per year; • Regarding serious accidents during time left until retirement; • Regarding occupation diseases per y...

Features of sound classification scheme designated to label buildings in Lithuania

AbstractIn Lithuania’s case, the legal requirements for the building acoustic quality since the year 2004 has been expressed through the sound classification scheme (SCS). The relationship of the subjective indoor acoustic comfort with the value of objective sound insulation was considered as a core for the classification scheme. SCS was designed to provide at least one sound class as a request for the newly erected building, other lower classes for reconstructed buildings and higher classes for premises with enhanced acoustic comfort. The adopted scheme contains five sound classes with various steps between them and is based on rating by two different sound insulation descriptors both having the same limit value. A request to protect against noise for newly erected and reconstructed buildings was enforced via the mandatory pre-completion acoustical testing. The database collected during testing allowed for the analysis of about 2000 in situ measurements of sound insulation properties of building partitio...

Simulation Tests of Extinguishing Process Using Mist Nozzles With Application of Hybrid Fire Model

AbstractThe article presents a computer model of the fire extinguishing process using mist nozzles. A previously developed hybrid fire model was used for this purpose. Assumptions and relationships were given to represent a mathematical model of extinguishing process, which comprises a unique approach to the determination of sprinkling area in an elementary cell of field fire model. A description of simulation tests of the model was given for several different input data, differing by mean diameters of droplets. This enabled a study of their effects on such output parameters as received heat flux, temperature and rate of its growth. For one selected computational cell located on the axis of the nozzle at floor level having the coordinates [10, 10, 1], the obtained results were presented in the form of heat flux and temperature. To simplify the analysis, characteristic parameters of particular curves were listed in the table. Conclusions formulated on the basis of results obtained during tests were specifi...

INFLUENCE OF FIRE RETARDANT ADDITIVES ON FIRE PROPERTIES OF MATERIALS BASED ON POLYESTER RESIN POLIMAL 1033 APy

Abstract To investigate the influence of special additives – fire retardants – on the selected fire properties of materials based on polyester resin Polimal 1033 APy produced in the chemical plant ‘Organika-Sarzyna’ in Poland, a full scale of fire methods has been used. Three samples have been studied during combustion in a closed compartment: an unmodified sample, a sample containing 14% of MoO3 (molybdenum trioxide) and a sample containing 14% of antimony trioxide (Sb2O3). Several important parameters related to the combustion of tested polyester materials have been obtained as a result of the undertaken studies such as temperature and carbon monoxide (CO) concentration. This paper discusses the outcome of the conducted full-scale studies. Special emphasis is placed on analysis showing variation in time of these parameters during the combustion of three different polyester materials with and without fire retardant additives. One of the most important parameters taking into account evacuation conditions ...

Professional safety and health strategies for the years 2004–2006

Summary The purpose of this work is to set down strategic directions of safety and health for the years 2004–2006. • To achieve the objective European Communities Professional safety and health strategies for 2002–2006 were estimated, employees present state of health and safety analysis was done, professional health and safety scientific researches results were used. In this work the methods of selection, poll, statistic‐analysis, mathematical modulation were used. The main result of the research is professional health and safety strategic directions for the years 2004–2006: • creating of good physical conditions at work places (increasing work welfare); • consolidating and improving of preventive culture; • modelling and implementing of professional health and safety at work policy that is a component of social policy. Such directions are determined by: • the increased amount of accidents and industrial diseases in separate sorts of economical activities and performing specific work exceeds Lithuanias...

Review of fire hazard analysis of ignalina nuclear power plant

Abstract Fire safety is important throughout the lifetime of a plant, from design to construction and commissioning, throughout plant operation and to decommissioning. The article is the document that will present the review results of the documents by VATESI during licensing Unit 1, 2 and provides information how Ignalina NPP to meet State requirements and international recommendations to achieve and maintain satisfactory fire safety. Fire hazard analysis of operation RBMK‐1500 type reactor is done for first time in the world practice.