Dept. of Human Work Science

ARF005 Physical and Chemical Environmental Techniques 6.0 ECTS credits

DENNA SIDA FINNS OCKSÅ PÅ SVENSKA

General information about studying at Luleå University
TIMEPERIOD:

LANGUAGE: Swedish

EXAMINER
Anders Ågren Univ lekt

PREREQUISITES
General eligibility for admission.

COURSE AIM
The aim of the course is to provide knowledge of: - technical acoustics and mechanisms of noise generation from different sources - the human auditive sense and the impact of noise in human environments - room acoustics and building acoustics - methods to reduce noise from machines and in rooms - the human visual sense, visual ergonomics and distinctive features of visually demanding work tasks - lighting technology and colour theory - methods for analysis of visual work, lighting of specific tasks, and planning, design and maintenace of lighting - adverse health effects related to electromagnetic radiation - chemical substances in the working environment and their effects on the human being - sampling and analysis of chemical substances in the working environment - elimination technologies for chemical substances in the working environment

CONTENTS
BASIC TECHNICAL ACOUSTICS, 2p. Sound field theory. Basic acoustic concepts and definitions. The human auditive sense. Measurement technology and equipment. Microphones, filters, sound level meters and spectral analysers. Machinery acoustics and structure borne sound. Noise excitation and sound radiation. Natural vibrations, forced vibrations, structure mobility and vibration propagation. Vibration isolation. Noise control of industrial machines. Noise excitation and propagation from rotating machines and from impacts. Building acoustics. Room acoustics, sound insulation, sound absorption. Prediction methods to calculate the sound levels in small rooms and in industrial halls. VISUAL ERGONOMICS AND RADIATION, 1p. The analysis of visual system. The human visual sense. Demands on visual conditions and occupational lighting. Colour theory. Lighting technology. Concepts of lighting technology. Light sources. Planning and maintenance of lighting systems. Improvements of lighting conditions. Analysis of visual ergonomics. Visual task analysis. Measurement techniques for assessment of visual systems and occupational lighting. Electromagnetic radiation. Fundamental concepts of electromagnetic radiation. Ionised and non-ionised radiation. Electric and magnetic fields. Applications and protection. CHEMICAL ENVIRONMENT TECHNOLOGY, 1p Threshold limit values, legislation. Medical, technical and other causes that form the basis for threshold limit values. Chemical substances in the working environment. Occurrence, generation, propagation and properties of chemical substances. Exposure, uptake, metabolism, distribution, secretion, impact, solubility in body fluids, reactivity etc. Risk assessment of industrial processes and management of chemical substances at workplaces. Elimination technology. The process and the production (raw materials, technology, planning). Ventilation - design and lay-out of industrial ventilation. General and process ventilation. Personal protection.

TEACHING
Mainly lecturing and compulsory experiments. The visual ergonomics part includes a mini project in a real work place and a demonstration of light sources. Lectures are mainly about theory and real-life applications. In the noise and acoustics part, some numerical examples are also given. The experiments and the mini projects are designed in order to illustrate the theoretical parts. The project is carried out as a group work resulting in a written report and an oral presentation.

EXAMINATION
The subparts of the course, Noise Control and Vibration, Visual Ergonomics and Radiation, and Chemical Environment Technology, are examined separately. Written examination at the end of the course. Written project report with oral presentation. Written experiment reports.
COURSE GRADE SCALE: Fail, 3, 4, 5

ITEMS AND CREDITS 
Laboratory work                                             	1.0 ECTS
                                                            	1.5 ECTS
                                                            	1.2 ECTS
                                                            	2.2 ECTS

COURSE LITERATURE
Johansson, C: Kompendium: Teknisk Akustik HLu 1989 Plunt,J: Kompendium: Alstring och spridning av stomljud i maskiner Lundgren, Luthman, Elgstrand: Människan i arbete. Almqvist & Wiksell 1987 Ruth, W, 1995: Synergonomi. Kurslitteratur för R-linjen. Birgerson,Sterner,Zimerson: Kemiska Hälsorisker. Hermods 1991 "Din bästa luftaffär" om projektering och upphandling av industriventilation. Arbetsmiljöfonden 1987. Further literature and english alternatives will be presented on demand.

REMARKS
Last modified 97-03-05
Back to departement menu