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Optimization Design And Performance Analysis Of Air Cooling And Spraying Dual-purpose Cooler

Posted on:2015-07-24Degree:MasterType:Thesis
Country:ChinaCandidate:Q LiuFull Text:PDF
GTID:2272330467958539Subject:Heating, Gas Supply, Ventilation and Air Conditioning Engineering
Abstract/Summary:PDF Full Text Request
Air-cooled chiller with a spray can well meet the cooling requirements of energy-saving equipment, and has features of well environmental protection, low investment and operating costs etc, can be well applied in the chemical, textile and other industries.In this paper we mathematical modeling the application of air cooling and spray dual cooler To evaluate, structure design and optimization,numerical simulation research, to analyze the impact of wet and dry conditions to air-cooled chiller with dual spray parameters on the cooling performance Research, Provide a basis for design selection in design and engineering application, the specific content:First, the operation analysis of heat transfer mechanism in the dry conditions of air-cooled chiller with spray. Through the Type of ideal assumptions for Boundary conditions and the design conditions,To calculate the mathematical model of the working condition of dry conditions,Determine the boundary conditions of good mathematical model is set up and the control equation,Finally through the theoretical analysis and calculation to find out solution under the condition of dry conditionsSecond,Through the above conclusion, respectively, to find the wet condition and dry condition of heat transfer, mass transfer coefficient, According to the experience on the basis of choosing the best dimension of the finned tube,And calculate the specific length, width and height of the cooler,To make the detailed design as a whole.And to select core heat fin tube cooler for the simulation of temperature field of the selected finned tube size is suitable for the working condition of the optimal structure.Third,Analysis of Air-cooled chiller with spray under two conditions of the structure parameters and the influence of operation parameters on the cooling performance.The thesis analyses the structural parameters include:Air dry bulb temperature and windward side wind speed.Make the analysis of operation parameters include:Air flow, wet bulb temperature, water spray yield, water yield;The impact of structural parameters including.The base tube of heat exchanger pipes、Arrangement, length, width, height,pipe inner plate.Finally summarized the performance analysis of Air-cooled chiller with spray structure optimization design of the research.And put forward the direction of the proposed can also continue to optimize,In Air-cooled chiller with spray’s possible future development direction is prospected.
Keywords/Search Tags:Air cooling and spraying dual-purpose cooler, dry conditions, wet conditions, the transition temperature, performanee analysis
PDF Full Text Request
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