Dissertation > Excellent graduate degree dissertation topics show

Theoretical and Experimental Study on Indoor Thermal Comfort Parameters

Author: CaoXiaoQing
Tutor: ZhengJie
School: Chongqing University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: Thermal environment Psychological Physiological Experimental study Simulation Weighting coefficient Mathematical model
CLC: TU831
Type: Master's thesis
Year: 2008
Downloads: 390
Quote: 4
Read: Download Dissertation

Abstract


With the progress of society, people's living standard continues to improve indoor thermal environment has become a hot topic of concern of the whole society. Human subjects Indoor thermal environment, the current building energy efficiency and building thermal environment of the establishment of standards is important. This paper focuses on indoor thermal environment, is the ambient temperature on human psychology, physiology of human thermal comfort experiments in a laboratory environment. Selected sample of human thermal sensation as a psychological parameters, mean skin temperature, body temperature, heart rate, blood pressure, body surface electrical impedance as a physiological parameter, the system examines the impact of indoor thermal environment on human psychology, physiology, in which the thermal environment heart rate, blood pressure is the physiological part of the research focus. The influence mechanism of the different seasons of ambient temperature on the body parameters and the parameter variation characteristics in different seasons, under different operating conditions. Acceptable ambient temperature different parameters corresponding to the framing interval. Get: the summer young men and women acceptable indoor thermal comfort temperature range of 24.3 to 31.5 ° C; thermal comfort temperature range of 26.1 to 30.4 ° C under the average surface temperature indicators; the transcutaneous electric resistance index acceptable temperature range of 24.2 to 30.3 ° C; blood pressure and other indicators; summer normal human blood pressure corresponding to a minimum value of 21.7 ° C ambient temperature. Laboratory human thermal comfort and indoor thermal environment in different seasons of the natural environment by Airpak software simulation, some of the conclusions of the experiment and the simulation results. Summer human thermal equilibrium neutral temperature of 29.1 ° C higher than summer body measured neutral temperature is derived through the mathematical theory of the heat balance of the human body. Human thermal sensation physiological sensitivity to the environment is much greater than the sensitivity of the environment, human thermal sensation than the physiological and often earlier demonstration of the reaction to ambient temperature. And through fuzzy math expert judgment, on the field of thermal comfort studies are more concerned about the parameters of the evaluation weights, psychological, physiological parameters corresponding weight coefficient. Fuzzy evaluation results were validated by the introduction of biological mathematics principal component analysis. The right combination of parameters based on the analysis by the ambient room temperature of human psychological, physiological parameters of single factors re-analysis of the establishment of a mathematical model of human psychological, physiological / indoor temperature, in order to predict the average thermal sensory indicators as a comparison sample, the establishment of The fuzzy comprehensive evaluation model has been verified. Through this study, the following conclusions: human thermal sensation, mean skin temperature, body temperature, heart rate, blood pressure, body surface electrical impedance varying degrees by the influence of ambient temperature. The MSV, mean skin temperature, heart rate, body temperature is rising, as the ambient temperature rises, blood pressure, body surface electrical impedance downward trend. By fuzzy evaluation of the parameters corresponding weights weight coefficient for the MSV: 0.5010; average surface temperature: 0.1894; temperature: 0.0692; heart rate, blood pressure: 0.0488; the transcutaneous electric Impedance: 0.1917. The principal component analysis to the conclusion that the fuzzy evaluation conclusion is reasonable. On this basis, a mathematical model of human psychology, physiology / indoor ambient temperature \can achieve high accuracy. Integrated physiological, psychological factors the summer young men and women get acceptable temperature range of 23.0 to 30.0 ° C. Finally, the psychological indicators, physiological indices and comprehensive psychological, physiological indicators of human thermal environment acceptance of the summary, proposed a means to improve the human body to adapt to the hot environment.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  3. Study on Springback of High-Strength Steel Stamping,TG386
  4. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  5. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  6. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  7. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  8. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  9. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  10. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  11. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  12. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  13. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  14. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  15. Numerical Simulation of Biomass Direct Reburning,TK16
  16. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  17. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  18. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  19. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  20. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  21. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2

CLC: > Industrial Technology > Building Science > Housing construction equipment > Air-conditioning, heating, ventilation,and its equipment > Air-conditioning
© 2012 www.DissertationTopic.Net  Mobile