|
|
Waste heat to power technology
Kůra, Tomáš ; Máša, Vítězslav (referee) ; Konečná, Eva (advisor)
This bachelor thesis focuses on the methods of waste heat conversion to electrical energy. There are presented and described so far known methods that generate power via mechanical work and methods converting power directly from heat. The thesis also contains an overview of case studies for studied technologies. Finally, all the findings are summarised, the factors influencing the applicability of each technology are presented, and the possibilities of the technology application in the industry are evaluated.
|
|
|
Waste heat to power technology
Kůra, Tomáš ; Máša, Vítězslav (referee) ; Konečná, Eva (advisor)
This bachelor thesis focuses on the methods of waste heat conversion to electrical energy. There are presented and described so far known methods that generate power via mechanical work and methods converting power directly from heat. The thesis also contains an overview of case studies for studied technologies. Finally, all the findings are summarised, the factors influencing the applicability of each technology are presented, and the possibilities of the technology application in the industry are evaluated.
|
|
|
Life style of university students
KŮRA, Tomáš
Lifestyle of people is one of the determinants of health. Is created from complex of factors that have influance on health and sicnesses. Factor of lifestyle is way of living, that includes regime of work and rest, physical activity, nutritions, bad habits, but also education, way of coping with stress and social status. According to the World Health Organization is lifestyle affected by quality of healthy population. Many epidemiological studies have shown that the majority of the population accept the risky and protective factors affecting health only at theoreticl level. Thesis is devided into theoretical and practical part. The theoretical part was processes by secondary data analysis of literature. In the theoretical part I focused mainly on health determinants (personal wellbeing, enviroment, life style, food, leisure, day mode). In another chapters I dealt with issue of stress, physical activity, risk behaviors and stress from University education. The practical part of thesis I conducted a quantitative method using questionnaire survey on the lifestyle of college students. The questionnaire was anonymous. Data were collected in March and April and questionnaire was sent out via email to students of ZSF JCU. Data and results were processed in graphical form using Microsoft Office excel 2007. The sample consisted of students of Bachelor's and Master's degrees ZSFJCU. Sample were 300 students of 1,2,3,4, and 5year. Part of questioned students did not reply to the questionnaire, ome only partially. 80 % returned questionnaire. The sample consisted of 232 students (211 woman and 21 mans) from diferrent branches of ZSFJCU (see Table 1). In teses the hypotheses were:H1: Students of Health and Social Studies have weaknesses in the way and quality of life. This hypothesis was confirmed based on the result od the questions in the questionnaire. Specifically, the issues relating the food, particularly inadequate consumtion of fruits, vegetables and fish. Furthermore, students have deficiencies in physical activity, which is recommended daily for at least one hour of physical activity. H2: Health and Social Studies students will have knowledge about the impact of bio-psycho-social factors on health. The second hypothesis is based on responses to the question : What are the main health risks caused by inappropriate lifestyles? This question answerd correctly 95 % of students that were asked. H3: Students of Health and Social Studies after completing their studies, participate in programs of health promotion and health education of population. This hypothesis was not confirmed. Only 10 % of students want to work after graduation programs of health promotion and health education of the population. H4: Health and Social Studies creates conditions to support a healthy lifestyle. This hypothesis was verified. Health and Social studies allows you to participate in pysical education in the study. This option uses 54 % of the total number of students that were asked. It also allows food in the canteen on the premises of the faculty. Furthermore, in the study are ZSF JCU lectures dealing with the topic.
|
|
|
Health Hazard Assessment of Factors of Work-Related Conditions in Sugar Beet Processing Facility
KŮRA, Tomáš
The aim of the bachelor thesis was to evaluate the health risks of working conditions factors of certain facility. The other objective of this thesis was to propose preventive measures to protect health when working and to categorize individual works. In the case of sugar beet processing equipment there are two risk factors. The employees are affected by the risk factors of noise and psychological burden. Three research questions were established: 1. Which of the working environment factors dominates? 2. Do the risk operation activities predominate? 3. Is the level of working environment factors over limits? This thesis was prepared using qualitative research methodology, particularly secondary analysis of data which is based on the study of literature, legislation and vocational background to this issue. Also the observation methodology was used, concretely disinterested and obvious observation. In the theoretical part I focused on risk factors which occur in the sugar beet processing equipment and on the assessment of health risks. Then I focused on the technology of sugar production. In the practical part I assessed the health risks of selected work environment factors. The evaluation was carried out according to the procedures set out in Government Regulation No. 272/2011 Coll. and in Government Regulation No. 361/2007 Coll., as amended. I compared the measurement results with the health limits set out in Government Regulation No. 272/2011 Coll., which sets the safe limits for noise and vibration. After comparing with hygienic limits I ranked the individual professions in categories according to Decree No. 432/2003 Coll., as amended. Based on the practical part the above-mentioned research questions were answered. Noise is the dominant factor in the working environment in the sugar beet processing equipment. We mean the noise which is variable. Technological facilities are the source of noise. Risky works occur in the mentioned devices but do not predominate in the operation. The level of the noise factor in the work environment is above the limit for certain professions. These include the following professions: sugar beet equipment operation, roots lines operation, operation of washing machines, cutting machines operation, operation of centrifuges and brewer. The factor of psychological load was evaluated according to specified criteria. Given that this is a seasonal job in the winter, the positives outweigh the negative effects of mental stress factor. Currently, when the unemployment rate rises, people appraise for each job opportunity. This Bachelor's thesis can be used in practice to raise awareness of the health risks connected with working conditions influences in the sugar beet processing equipment. It can serve as a source of information for both employers and employees and also provide a basis for further research.
|
guest ::
RSS feed.