【摘要】：隨著整個社會物質(zhì)水平的日益提高及科技的日益發(fā)達,人們越來越關(guān)心自己的居住環(huán)境和空氣品質(zhì),空氣調(diào)節(jié)已成了日常必不可少的需求�？照{(diào)箱,即組合式空調(diào)機組,因其自由組合功能段且處理風(fēng)量大等特點,作為中央空調(diào)系統(tǒng)而受到了廣泛的應(yīng)用。一般空調(diào)箱選型時,由于處理空氣的部件較多且復(fù)雜,所以傳統(tǒng)的手工計算需要多次的重復(fù)勞動,不僅降低了工作效率,也不能保證計算結(jié)果的合理性。為此,通過計算機仿真技術(shù)對各功能段進行模塊化設(shè)計,并基于各功能段模塊開發(fā)出了空調(diào)箱數(shù)字化設(shè)計系統(tǒng),實現(xiàn)空調(diào)箱設(shè)計、計算、選型、輸出CAD圖紙和報告一體化的功能,本文主要做了以下工作:一、對濕空氣進行物性參數(shù)的研究,擬合了濕空氣的飽和水蒸汽曲線公式,并建立了濕空氣的物性計算模型,加快了計算機調(diào)用物性參數(shù)的速度和精度;二、建立了空調(diào)箱冷水盤管干工況、冷水盤管濕工況、熱水盤管干工況的傳熱傳質(zhì)模型,并基于此開發(fā)了冷水盤管已知制冷量和已知出風(fēng)參數(shù)的設(shè)計計算模型;建立了冷水盤管的仿真計算模型,并通過實驗進行驗證其合理性;三、建立了板翅式熱回收和轉(zhuǎn)輪式熱回收的傳熱傳質(zhì)模型,利用前人的研究成果對轉(zhuǎn)輪式熱回收模型的合理性進行驗證。通過仿真計算,得到了板翅式熱回收的性能參數(shù)和回收效率隨迎面風(fēng)速和交換膜厚度的變化曲線;得到了轉(zhuǎn)輪式熱回收的性能參數(shù)和回收效率隨迎面風(fēng)速、轉(zhuǎn)輪厚度和轉(zhuǎn)輪轉(zhuǎn)速的變化曲線;四、基于上述模型及其他功能段模型,在原來前輩的開發(fā)基礎(chǔ)上,拓展開發(fā)了新的機組設(shè)計形式:雙層熱回收機組,完善優(yōu)化了空調(diào)箱數(shù)字化設(shè)計系統(tǒng)。
[Abstract]:With the improvement of material level and the development of science and technology, people pay more and more attention to their living environment and air quality, and air conditioning has become an indispensable requirement in daily life. Air conditioning box, that is, combined air conditioning unit, has been widely used as a central air conditioning system because of its characteristics of free assembly and large air volume. In general air-conditioning box selection, because there are more and more complicated parts to deal with air, the traditional manual calculation requires repeated work many times, which not only reduces the work efficiency, but also can not guarantee the rationality of the calculation results. In order to realize the design, calculation and selection of the air-conditioning box, the digital design system of the air-conditioning box is developed based on the module of each function section and the modularization design of each function section is carried out by means of computer simulation technology. The main work of this paper is as follows: first, the physical parameters of wet air are studied, the formula of saturated water vapor curve of wet air is fitted, and the physical property calculation model of wet air is established. It speeds up the speed and precision of calling physical parameters by computer. Secondly, the heat and mass transfer models of cold water coil dry working condition, cold water coil wet working condition and hot water coil dry working condition are established. Based on this, the design and calculation models of the known cooling capacity and the known outlet air parameters of the cold water coil are developed. The simulation calculation model of cold water coil is established, and its rationality is verified by experiment. Thirdly, the heat and mass transfer models of plate-fin heat recovery and wheel heat recovery are established, and the rationality of the model is verified by previous research results. The performance parameters and recovery efficiency of plate-fin heat recovery are calculated by simulation, and the curves of the variation of performance parameters and recovery efficiency with the velocity of attack and the thickness of the exchange film are obtained. The variation curves of the performance parameters and recovery efficiency of the runner type heat recovery with the wind speed, the thickness of the runner and the rotating speed of the runner are obtained. Fourthly, based on the above-mentioned models and other functional segment models, a new type of unit design, double-layer heat recovery unit, is developed on the basis of the development of the previous generation, and the digital design system of air-conditioning box is improved and optimized.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU831

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