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- Title
Evaluation of the working items of hotel-restaurant complex stability structures.
- Authors
Volodchenkova, Nataliya; Hivrich, Olexandr; Labzhynska, Marharyta
- Abstract
Introduction. The institutions of the hotel and restaurant industry for its activity specific is not high-risk object, but the adverse or unusual situations, which should be classified as dangerous, can be created during its functioning. These situations include explosions and fires, which take place in the process of activities of the institution and could affect on the production staff, staff and/or visitors. Materials and methods. To assess the stability of structures manufacturing objects of the hotel and restaurant complex to the effects of negative factors there was making explore using a method that establishes the procedure for calculating the value of the overpressure, which may be created during the combustion of gassteam- air mixtures in production buildings of above mentioned institutions. Results and discussion. To calculate the values of the explosive fire risk criteria in case the combustion of gas-vapor-air mixture choose the most unfavorable variant of the accident (emergency), when at the building receives the maximum quantity of dangerous substances (mixtures). Number of substances which fall within the buildings and may form explosive and flammable gas-air and steamair mixtures and their hybrids are defined under the following conditions: - there is estimated accident (emergencies) one of the devices; - the entire amount of the dangerous mixture contained in the unit enters the building; - all amounts of pipeline substance considering the time to disconnect. The research method of calculating the overpressure, what may be formed during combustion gas mixture was occurred with the following conditions: in a typical building of the hotel-restaurant institution with normal conditions of working environment, free volume 200 m3, laid a pipeline with a bore diameter 50 mm, which is transported propane С3Н8 with maximum consumption 5×10-3 m3/s, and the maximum pressure 150 kPa. Calculations were made for cases with pipeline equipped with automatic shut-off system timing eventually 2 s; Automation system failure probability no more than 0.000001 a year and did not provide emergency reservation of items, off time - 120 s; at manual disconnection system off time - 300 s. Conclusions. The proposed method of calculation of the overpressure size, which can be created by the burning of gas-vaporair mixture in the buildings of institutions of hotel-restaurant complex allows determine in advance the consequences of possible adverse or unusual situations and take timely structural and technical measures for preventing or minimizing it.
- Subjects
COMBUSTION; EXPLOSIONS; HOTEL restaurants
- Publication
Ukrainian Journal of Food Science, 2016, Vol 4, Issue 1, p151
- ISSN
2310-1008
- Publication type
Article