This project proposes the numerical reproduction development of the water flow in a shell-and-tube heat exchanger 2:1 according to the CLASS C TEMA standard (for moderate operation conditions, with commercial applicat...This project proposes the numerical reproduction development of the water flow in a shell-and-tube heat exchanger 2:1 according to the CLASS C TEMA standard (for moderate operation conditions, with commercial application). With baffles in aluminum and copper tube for the cold fluid flow, the shell is in acrylic, and with thermal analysis efficiencies with regard to the presence or not of the baffles, that is to analyze the efficiency with only, the tubes and the shell and soon after the analysis with tubes and baffles. Heat exchangers are widely used equipment on an industrial and commercial scale, the application of these equipments on an industrial scale represents innovative processing solutions reflecting the processes efficiency, producing significant savings and lower cost, supporting the business success, and consequently offering opportunities, social responsibility, which are the pillars of sustainability. For the development of this work the methodology was used to calculate effectiveness, following the design parameters and contour conditions, it was analyzed the fluids behavior in the shell and the tube, through computational fluid dynamics (CFD) using the software ANSYS CFX 15.0. The results were compared with Excel generated worksheets calculated using the existing equations and correlations.展开更多
Introduction: Hospital Recreation (HR) aims to reduce disasters caused by hospital admission. Objectives: To expose the behavior of children in cancer treatment (CA) during HR, and to verify which recreational activit...Introduction: Hospital Recreation (HR) aims to reduce disasters caused by hospital admission. Objectives: To expose the behavior of children in cancer treatment (CA) during HR, and to verify which recreational activities generate the most adherence. Methods: The research is an experimental clinical trial of a non-probabilistic and intentional sample, with a quantitative and qualitative approach. Participants were 43 children (both sexes), with CA, admitted to the Pediatric Hospital Oncology Center—PHOC. The mean age of the children in fact was 7.5 years, and the data of mean and standard deviation between parenthood confer with the data of the results found during the research. The study lasted 12 weeks, with 38 sessions lasting 3 hours. Using games of activity: cognitive, manipulative, perceptive, creative and cooperative. Inclusion criteria: 1) being hospitalized in the PHOC, of the city of Natal;2) being released by the medical team to participate in the activities. Children who were on special care in the ICU were excluded from the study. The behavior of the children was evaluated by the observation matrix proposed by Urie Bonfenbrenner, approached by Krebs and Koller. At the end of the research, an interview was made with patients about the HR experience. Results: In the subjects the molecular behavior showed relevance of ~50%, and the cooperative of ~80% in relation to HR, and the cognitive activities showed an adhesion index of ~90%. Conclusion: The participants showed greater adherence in the cognitive activities, and the predominance of the molecular behavior in relation to hospital recreation, highlighting the cooperative behavior among the individuals. In this way, the activities of HR can complement conventional medical treatment.展开更多
文摘This project proposes the numerical reproduction development of the water flow in a shell-and-tube heat exchanger 2:1 according to the CLASS C TEMA standard (for moderate operation conditions, with commercial application). With baffles in aluminum and copper tube for the cold fluid flow, the shell is in acrylic, and with thermal analysis efficiencies with regard to the presence or not of the baffles, that is to analyze the efficiency with only, the tubes and the shell and soon after the analysis with tubes and baffles. Heat exchangers are widely used equipment on an industrial and commercial scale, the application of these equipments on an industrial scale represents innovative processing solutions reflecting the processes efficiency, producing significant savings and lower cost, supporting the business success, and consequently offering opportunities, social responsibility, which are the pillars of sustainability. For the development of this work the methodology was used to calculate effectiveness, following the design parameters and contour conditions, it was analyzed the fluids behavior in the shell and the tube, through computational fluid dynamics (CFD) using the software ANSYS CFX 15.0. The results were compared with Excel generated worksheets calculated using the existing equations and correlations.
文摘Introduction: Hospital Recreation (HR) aims to reduce disasters caused by hospital admission. Objectives: To expose the behavior of children in cancer treatment (CA) during HR, and to verify which recreational activities generate the most adherence. Methods: The research is an experimental clinical trial of a non-probabilistic and intentional sample, with a quantitative and qualitative approach. Participants were 43 children (both sexes), with CA, admitted to the Pediatric Hospital Oncology Center—PHOC. The mean age of the children in fact was 7.5 years, and the data of mean and standard deviation between parenthood confer with the data of the results found during the research. The study lasted 12 weeks, with 38 sessions lasting 3 hours. Using games of activity: cognitive, manipulative, perceptive, creative and cooperative. Inclusion criteria: 1) being hospitalized in the PHOC, of the city of Natal;2) being released by the medical team to participate in the activities. Children who were on special care in the ICU were excluded from the study. The behavior of the children was evaluated by the observation matrix proposed by Urie Bonfenbrenner, approached by Krebs and Koller. At the end of the research, an interview was made with patients about the HR experience. Results: In the subjects the molecular behavior showed relevance of ~50%, and the cooperative of ~80% in relation to HR, and the cognitive activities showed an adhesion index of ~90%. Conclusion: The participants showed greater adherence in the cognitive activities, and the predominance of the molecular behavior in relation to hospital recreation, highlighting the cooperative behavior among the individuals. In this way, the activities of HR can complement conventional medical treatment.
