Dissertation > Excellent graduate degree dissertation topics show

A Design of Compact Solar Li-Br Absorption Chiller Driven by Low-temperature Heat Source

Author: ChenChuan
Tutor: TangYong
School: South China University of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Solar energy Absorption refrigeration Transient simulation TRNSYS
CLC: TU831.4
Type: Master's thesis
Year: 2013
Downloads: 203
Quote: 0
Read: Download Dissertation

Abstract


As people demand higher on the thermal environment of buildings, a series of problemsaccompanied by building energy consumption and environmental pollution has received moreand more attention. Solar thermal driven cooling system, which has no pollution, low energyconsumption and good season match, are a promising alternative to electric compressionchillers. In the previous research in our lab, the effects of ultrasonic waves on the masstransfer enhancement in absorption chiller were carefully studied. This paper proposed acompact solar Li-Br absorption chiller driven by low-temperature heat source base on theformal study. This paper focuses on the design of the internal heat transfer unit structural ofthe absorption chiller including heat-transfer area, heat-transfer coefficient, and structuredimensions etc. A simulation model is built by solar transient simulation software–TRNSYS.The influence of main components of solar chiller on the performance is analyzed. A microcontroller is designed for control system of absorption chiller. Finally, the performancesoptimization of the controlling system is preliminary designed. Specific research contents andconclusions are as follows:(1) In this paper, cooling load of room101, No.19thbuilding of South China Universityof Technology is chosen as research object. Computing software of solar Li-br absorptionchiller which is developed previous used to determine the parameters of state points ofabsorption chiller and completed the heat balance calculation. Based on the result of thedesign state point parameters, the paper calculates the heat transfer load of internal componentof chiller and then designs its structure parameters. In view of the different workingenvironment and features of heat transfer equipment, different surface of structure aredesigned to strengthen heat and mass transfer. Finally, the cooling tower of absorption chillerand solar heating/storage system is designed.(2) In order to evaluate the performance of solar thermal driven cooling system, asimulation model is built by solar transient simulation software TRNSYS. The influences ofsolar collectors, heat storage water tank and absorption chiller on solar fraction, the averageefficiency of the solar heating system and the performance of solar thermal cooling system areresearched. According to typical meteorological year data of Guangzhou area, theperformance curve of solar thermal cooling system in July is analyzed.（3）Automatic control system is developed according to the continuously changingcharacteristics of load and operating parameter of absorption chiller. A micro controller, which including analog acquisition, data input/output, serial port communication and digital displayet al, is designed based on the requirements. Finally, the preliminary design and optimize theautomatic control program of solar thermal driven cooling system is completed.

Related Dissertations

  1. Design and Analysis of a High-Efficiency Biogas Production System with Solar Heating Based on Thermal Management Controller,TK51
  2. Research on the Main Process of Solar Liquid Desiccant and Eevaporative Cooling,TB66
  3. The Application Research of Low-carbon Concepts in the Northern Residential Heating Design,TU832
  4. Solar adsorption chiller operating characteristics simulation and control system development,TB651
  5. Research and Application of Solar Power,TM615
  6. The Study on the Sun-shading Measures of Building Envelope in Middle-lower Reaches of the Yangtze River Region,TU226
  7. TRNSYS of a class -based Fuzzy Control Simulation of VAV system,TU831.3
  8. A regional cooling and heating energy consumption Simulation Methods,TU831.2
  9. Applied of Solar Energy to Ecological Restoration of Landscape Water,X52
  10. Numerical Simulation of Air-Fuel Mixture Formation in Gasoline Engine,TK411.2
  11. Research on Problems about Residual Flux of Current Transformer Magnetic Core,TM452
  12. Research on Linearfrfesmel Reflector Solar Collector System,TK513
  13. Design and Experiment with a Multifunctional Test Bench Composed of Serial and Parallel Hybrid Solar Energy Collectors for Drying Fruits and Vegetables,TS255.35
  14. Solar Photovoltaic Power Generation System Design and Optimization Analysis,TM615
  15. Design of the Controller for Solar Water Heating System to Clustered Application,TP273
  16. Studies on the Effect of Planting Density on Light Utilization of Different Plant Types of Rice (oryza Sativa L.),S511
  17. Thermodynamic Performances Analysis of Integrated Gasification Humidification Gas Turbine Cycle,TK471
  18. Preparing of the Concrete Heat Storage Materials for Solar Thermal Power Plants and Simulating of the Heat Store Unit,TM615
  19. The Researches of Hangzhou Defu Technologybuilding about Energy Saving,TU201.5
  20. Studies on Seawater Solar Desalination of Humidification-Dehumidification,P747
  21. The Experimental Research of Triple-Tube Exchanger with Heat Storage,TU831.6

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