Dissertation > Excellent graduate degree dissertation topics show

The Development of a Smart Natural Ventilator Cooled by Evaporation

Author: KangLiangZuo
Tutor: WangHanQing
School: Hunan University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: intelligent control evaporative cooling dehumidification numerical simulation performance evaluation
CLC: TU834.4
Type: Master's thesis
Year: 2013
Downloads: 0
Quote: 1
Read: Download Dissertation

Abstract


Domestic and foreign researchers have proved that evaporativecooling technique is an energy saving, environmental, green, healthy airconditioning technology. In recent years, the technology has a wide useand rapid development in the arid land of northwest china. But the area inthe south of China, the application is not very common. The air in most ofthe south is humid, relative humidity up to70%-80%, which makes thehygrometric difference is small, only use evaporative cooling technologyis not enough to cool the outdoor air to the specified supply airtemperature. Therefore, simple evaporative cooling technology is notfeasible in the arid land of northwest china. But if we dry the outdoor airby using some dehumidification methods, then it’s like dry areas ingeneral, using evaporative cooling technology to deal with air willbecome feasible.Based on this idea, an intelligent evaporation-typed natural windventilator which combines with rotary dehumidification and evaporativecooling technology and supported by intelligent controller is capable tothe moist southern china area.Firstly, a system design of the ventilator is provided in this article,which covers the interpretation of working Principles of system, theoverall design of the unit, the selection of installation kits and the designof the intelligent controller. Secondly，giving an efficiency analysis andtheoretical calculation to the various parts of ventilator，and the mainevaluation index of equipments will be acquired:Rated Air Flow is2500m3/h,sensible heat capacity of air conditioner is8.419kw,the powerinput is1.032kw, energy efficiency ratio is8.15.Then, a field testingwhich centers in the air cooling effect is taken for the ventilator. Finally,CFD numerical simulation and thermal comfort analysis are taken todiscuss the affects of air exchange rate and door/window condition etc. tothe efficiency of indoor temperature and humidity change, and find that10times/h room air exchange rate with door and windows open is thebest choice. Under this condition, the indoor temperature is28.5℃, andthe relative humidity is80%~82%.So, the intelligent evaporation-typed natural wind ventilator can cool the temperature in summer condition,and evaporative cooling technology have great applied prospect in southarea.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  4. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  5. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  6. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  7. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  8. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  9. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  10. Numerical Simulation of Biomass Direct Reburning,TK16
  11. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  12. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  13. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  14. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  15. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  16. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  17. The Research on the Performance Results Application of Zhaoqing Power Supply Bureau,F272.92
  18. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  19. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  20. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  21. AI Institute of pay system design and research,G647.5

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