Dissertation > Excellent graduate degree dissertation topics show

Research of Energy Efficiency Test and Diagnosis for Thermal Disaster Mine with ICE Cooling System

Author: ZuoYuDong
Tutor: ChengWeiMin；WangHaiLiang
School: Shandong University of Science and Technology
Course: Safety Technology and Engineering
Keywords: Heat damage mine Ice Refrigeration Energy efficiency testing Cold water duct
CLC: TD727
Type: Master's thesis
Year: 2010
Downloads: 125
Quote: 0
Read: Download Dissertation

Abstract


Based on Don mouth coal ice refrigeration cooling system, the actual operating conditions for the cooling system efficiency diagnostic analysis, pointed out the cooling system can cause mine reasons for the low efficiency and put forward relevant technical measures. Calculated by testing the ground that the two pre-cooling refrigeration system refrigeration units average coefficients were 4.34 and 3.84 , respectively, the average cooling capacity of 435kW and 605kW; ice compressor group, the average cooling capacity of 1235kW, the average cooling coefficient of 1.13 , the maximum refrigeration coefficient of 1.93 ; ice cold atmosphere conveying system airflow temperature is high. Thus the ground that the total cooling capacity refrigeration systems and cooling coefficient is low , while noting that the low energy efficiency of refrigeration systems because screw chillers slide valve opening becomes too small , cooling towers and evaporative condensers scaling serious effect of heat transfer poor due. Through the ice melting systems, cooling systems and underground transportation system testing diagnostics with cold , pointed multipurpose open the cold water supply piping system closed backwater utilization of less than 40% water , cooling water, cooling capacity utilization contained less than 60 % underground piping Chilled cooling capacity utilization of less than 21 %, such as considering the main shaft lose ice cold damage , the cooling system cooling capacity utilization rate of less than 20% . Meanwhile melt the ice cold water overflow system has a short circuit, cooling water system has lost the cold cooling water and non- contradiction and inconsistency mining face the contradiction between supply and demand of cold , these factors seriously affect the transmission efficiency and the cooling effect of the cold . To solve the above problem, this paper proposes refrigeration equipment on the ground appropriate technical measures to improve the energy efficiency of refrigeration equipment coefficient , while melting ice pools proposed rehabilitation programs to completely prevent the overflow of cold water circuit ; cold piping through simple adjustment of output transformation , the original water supply piping system to the closed open multipurpose backwater system , the effective utilization of cold water to 100% , while effectively solve the mining face is inconsistent with the purpose of cold water supply and demand contradiction between demand . The significance of the research results obtained through field surveys ice refrigeration cooling system on mine a lot of basic data, deep heat damage governance and cooling system operation , design and management provide valuable technical reference .

Related Dissertations

  1. Elevator Energy Efficiency Test and Analysis of Pointer to Data,TU857
  2. Study on Administration of Energy Efficiency Labeling of Building,F206
  3. Research on Technology of ICE Making by Heat Pipe Utilizing Natural Cold Rescource,TD727
  4. Mine Pit Hot Environment Forecast Technique Research and Numericl Simulation System Development,TD727
  5. Research of Heat Transfer Mechanism on the Mining Rock Under the Seepage,TD727
  6. Study on Surrouding Rock Thermal Couductivity Experiment and Distribution of Temperature Field in Deep Roadway,TD727
  7. Study on Inflow Temperature Change of Intake Shaft According to Liangbei Coal Mine Xinlong Coal Xuchang Henan,TD727
  8. Study on Simulation and Prediction of Temperature and Humidity of Air in Machinery Transport Airway,TD727
  9. Calculation of Strata Heat Release, Temperature and Humidity of Airflow in Wet Airway,TD727
  10. Temperature Field Simulation and Airflow Optimization of High-temperature Heading Face in Deep Mine,TD727
  11. Numerical Simulation Study on Local Ventilation and Cooling of Underground Deep-hole Exploration Drilling Chamber,TD727
  12. Experimental Research on Heat and Humidity Exchange Between Rock Wall and Airflow in Mine,TD727
  13. Study of Heat and Moisture Exchange Mechanism Using Shallow Palisades to Precool Intake Air,TD727
  14. Study of Coal Mine Wind Thermodynamic Process and Ventilation Temperature Dropping Technology Imitation,TD727
  15. Research on Key Technologies of Cooling Source of Mine Cooling System for Ultra-deep Mines,TD727.2
  16. Treatment of the Water Evaporation and Calculation of Airflow Temperature and Humidity in Roadway,TD727
  17. The Study of Mine Thermal Parameters Measuring and Calculating Method,TD727
  18. Numerical Simulation and Thermal Disaster Prevention Study on High Temperature Mine,TD727
  19. Study on Coupling Relation of Man-environment Under Complicated Conditions of Fully Mechanized Excavation Face,TD727
  20. Experimental Research on Energy-saving of New Mine Insulated and Waterproof Material Applied on Mine,TD727
  21. Experimental Research and Simulation on Heat and Humidity Exchange between Airflow and Rock Wall in Mine,TD727
  22. Numerical Simulation of Jet Ventilation and Thermal Disaster Prevention Study on High Temperature Heading Face,TD727

CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine ventilation > Climatic conditions within the mine and regulation
© 2012 www.DissertationTopic.Net  Mobile