Chiller Heat Exchanger Structure Analysis And Study Of System Performance With Refrigerant R134a

"Energy, health, environmental protection" has become the theme of the development of refrigeration and air conditioning industry,Energy saving and environmental protection products is the trend of social development. In response to national energy saving, low-carbon economy, call for the development of R&D strength of the well-known manufacturers of central air conditioning R134a have launched a flooded chiller. Evaporative cooling technology is rapidly developing in recent years, another energy-efficient and water-saving technologies. This core technology is an effective combination of these two together to optimize the system by design, designed the R134a condensing coil flooded evaporator chiller prototype, and through prototype testing, verification of the prototype energy, water and land effect.Paper focuses on the chiller heat exchanger heat transfer tube model, the control equation, simulation methods, performance analysis, comparison and optimization of other aspects, with emphasis on striped tube as the heat transfer tube to replace the traditional fluorescent tubes used in evaporative cooling control cases, the use of numerical simulation mechanism of the stripes and the heat transfer analysis, heat transfer mechanism in accordance with its stripes and tube structure of the optimization simulation.Theory of R134a refrigerant spray evaporative condenser coil flooded chiller with refrigerant R22 flooded chiller efficiency comparison between, R134a spray evaporative condenser coil flooded chiller system integrated energy efficiency more than R22 efficient than the flooded water-cooled chiller systems integration EER.The highlights of the evaporative condenser coil with R134a flooded the entire chiller optimization design process has been finishled include performance optimization consists of design, optimal design of electrical control, key technology and process optimization of four design optimization process. Finally, on further analysis of prototype testing, confirmed the evaporative condenser coil R134a flooded chiller optimal design results, summed up the prototype development and testing process discovered problems and puts forward suggestions and measures to improve for the better Further studies provide first-hand data and information. The conclusion of this paper concludes: evaporative condenser coil technology and flooded evaporator technology to traditional chillers, and will obtain than conventional evaporative cooling units and more flooded chillers effect of saving energy and water. Evaporative cooling liquid R134a chillers will be full of energy and water saving products represent the future market direction.