Dissertation > Excellent graduate degree dissertation topics show

GSHP CRAC system optimization and application research

Author: YangYan
Tutor: DiXiaoQiang
School: Shanghai Jiaotong University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: Ground source heat pump Constant temperature and humidity Thermal equilibrium Room temperature Regional
CLC: TU831.3
Type: Master's thesis
Year: 2012
Downloads: 160
Quote: 0
Read: Download Dissertation

Abstract


Ground source heat pump air conditioning system is based on geothermal energy as a heat source, is an energy-saving and environmentally friendly air conditioning system. Currently, ground source heat pump system has been widely used in schools, office buildings, homes, hospitals and other buildings in the comfort of air conditioning systems, and for the full year to maintain constant temperature and humidity indoor environments require architectural use of ground source heat pump system less . In this paper, a Shanghai records storage temperature and humidity of the ground source heat pump air conditioning system as the research object, the air conditioning system was investigated experimentally, and the establishment of a theoretical model of the theoretical analysis. Main contents are as follows: 1. Taking Shanghai as a records storage temperature and humidity of the ground source heat pump air conditioning system as an experimental platform. The gross floor area of ??8000m2, a total of 280 wells, drilling depth of 80m, diameter 160mm, and the use of a single U-DN32 strengthen PE pipe. Air-conditioning system uses a condensing heat recovery technology optimized design, which, as part of condensing heat heat pump air conditioning units as reheat coil heat. Such condensation heat recovery technology can not only reduce emissions summer heat the soil system, and can be re-heat the air, to achieve the purpose of air conditioning. (2) In order to analyze the ground source heat pump performance characteristics of constant temperature and humidity air-conditioning system, the establishment of a systematic theoretical model. Comprehensive building load characteristics, heat pump performance and ground heat exchanger heat transfer numerical analysis software compiled. 3 temperature and humidity of the ground source heat pump air-conditioning system was investigated experimentally. (A) typical winter conditions, the pump COP can reach 5.3, typical summer conditions, the pump COP can reach 5.1. Meanwhile, the air conditioning system to meet the indoor temperature and humidity environment. (2) When the interior temperature rises, the system is to reduce soil emissions of heat of condensation, is conducive to the long-term stable operation of the system. (3) The condensation heat recovery technology, the system is unbalanced with respect to the heat of the soil was 16.3% less than without using the heat recovery of 33.7% of the heat emission. One year after the system is running the soil temperature increased by about 0.7 ℃. 4 based on theoretical models and experimental station junction characteristics have been optimized to run on the system analysis and application analysis. (A) carried out for the indoor design temperature optimization analysis. According to the National Archives building design, interior design temperature range is 14 ℃ -24 ℃, in this temperature range for analysis. Long-term effects from the system point of view, the higher the temperature the more interior design will help alleviate the soil temperature at a higher long-term efficiency of the unit is running. Considering the energy efficiency of the system and stability, it is recommended in the range of 22 ℃ -24 ℃. (2) temperature and humidity of the ground source heat pump air conditioning system for the promotion and application of geographical analysis. The results show that for cold regions and temperate regions can better use of ground source heat pump system; cold regions need for auxiliary solar power or other sources of heat; For the hot summer and cold winter area through the use of condensing heat recovery technology can better solve the cold winter season load imbalances; For subtropical region while using condensing heat recovery technology required auxiliary cooling tower. 5 for ground source heat pump air-conditioning system of the economy constant temperature and humidity and carbon emissions are analyzed. The ground source heat pump system relative to conventional chiller boiler system plus the static investment recovery period is 3.47 years, the dynamic investment recovery period is 3.89 years, and 38.0% in emissions per year; compared to air-source heat pump system static investment recovery period of 1.81 years, the dynamic investment recovery period is 1.85 years, and each year fewer emissions CO237.2%.

Related Dissertations

  1. The Research on Mixed-age Regional Activities Management of Kindergarten,G617
  2. Study and Preparation of BaTiO3-based NTC Ceramic Thermistors,TQ174.1
  3. Research on the Regional Difference and Influence Factors of China’s Carbon Emissions,X502
  4. The Chinese Government Empirical Study of Preferential Agricultural Policies,D422.6
  5. The Selection of Leading Industry and Industry Distribution in Environmentally Vulnerable Area,X321
  6. Design and Impiementation of Cotton Boll Quality Regional Distribution and Appraisal System Based on Gis and Model,S562
  7. The Environmental Law Research on the Principal Functional Areas’ Management,D922.68
  8. Japan Regional Environmental Diplomacy,X321
  9. On Basic Issues of Regional Economic Law,F127
  10. Research on Convergence of Regional Economic Growth Across Three Provinces in Northeast China,F127
  11. Shanxi Folk Auspicious Patterns in Modern Design Research on the Application of Swing Dress,TS941.2
  12. Regional Development Based on Social-ecological Systems,X321
  13. Materials for Building Regional Factors Influence,TU-0
  14. Earthquake Reconstruction of Human Resource Development,F249.2
  15. A Case Study on the Regional Characteristics of Art Education in Xinjiang "Bilingual" Kindergarten,G612
  16. The Design and Implementation of Clinical Pathway Management System Based on SaaS,TP311.52
  17. Research on Aqueous Emulsion Releasing Agent for Aluminum Alloy Die Casting,TQ630.7
  18. Research on the Industrial Enterprises’ Technological Innovation in Business Relocation Base on Regional Innovation Environment,F425
  19. A Comparative Study on Energy Consuming of Hybrid Ground-source Heat Pump Systems,TU831
  20. Expression of CR16 in Testicular Tissue and the Initial Exploration of Its Role in Pathogenesis of Azoospermia,R698

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