این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
International Journal of Occupational Hygiene، جلد ۷، شماره ۴، صفحات ۱۸۷-۱۹۶
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Building a Software for Prediction of Noise Propagation in a Complex Condition (Indoor to Outdoor)
چکیده انگلیسی مقاله ORIGINAL ARTICLE The aim of this study was to design and build a software for noise propagation prediction (indoor and from indoor to outdoor spaces) which is being commonly used in industry. In this regard, firstly a mathematical complex model was created based on existing relationships about noise propagation in indoor spaces and transmission through the walls and propagation in outdoor spaces. To model noise propagation from indoor to outdoor, the function of this model is based on meshing the wall which is effective on outdoor receiver point. By analyzing the required inputs and outputs and designing and documenting the process algorithm, the mathematical model was created and the software was built. In the process of meshing the wall, the software divides the effective wall into 20 parts in length and width and calculations related to sound pressure level on inner wall surface, transmission loss through the wall and leakage from the pores are performed on these meshes. The built software was designed in 5 forms. Form 1 for defining hall dimensions and areas of used materials, form 2 and 3 for defining sound sources inside the hall and form 5 for defining and managing materials, were designed. Form 4 was used for completing required information and monitoring calculation results and software outputs. The software was run with the input data of a gas power plant and outputs were analyzed. The average relative difference between outputs of software and field measurements was below 5%. Hence the built software offers an acceptable estimation of industry’s propagated noise in the environment. This estimation can be used by industry managers for locating and designing the industry and for environmental impact assessment of the industry.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله مهران shesh برادران | mehran shesh baradaran
department of environmental engineering, school of environment and energy, science and research branch, islamic azad university, tehran, iran

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

پروین نصیری | parvin nassiri
professor, department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

محمد رضا منظم اسماعیل پور | mohammad reza monazzam esmail pour
professor, department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://ijoh.tums.ac.ir/index.php/ijoh/article/view/160
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Article(s)
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات