太阳能辅助空气源热泵在生活热水工程中的应用研究

发布时间：2018-02-07 11:27

本文关键词： 太阳能空气源热泵系统优化　出处：《哈尔滨工程大学》2013年硕士论文　论文类型：学位论文

【摘要】：高速的经济发展，必然会带来能源的过度消耗、环境的日益恶化等问题，因此节能减排、利用新的能源、努力提高能源的利用率成为当前政府工作的重中之重。而太阳能辅助空气源热泵热水系统则很好地达到了以上效果。本文从太阳辐射强度的计算方法开始，，研究了太阳能热水系统、空气源热泵热水系统和太阳能辅助空气源热泵热水系统的相关理论。在此基础上，为哈尔滨市某大学学生浴池设计出了一套完整的太阳能辅助空气源热泵热水系统。然后以此系统为研究对象，利用TRNSYS软件分别建立了太阳能热水系统仿真模型、空气源热泵热水系统仿真模型和太阳能辅助空气源热泵热水系统仿真模型。通过这三个模型，分析了太阳能集热器集热效率的影响因素，包括室外环境温度、太阳辐射量、太阳能集热器进口水温；空气源热泵COP的影响因素，包括室外环境温度、空气源热泵机组出口水温；以及各月及整个运行周期系统的性能。在以上研究的基础上，最后利用TRNSYS软件，对太阳能辅助空气源热泵热水系统进行了优化，包括集热器安装倾斜角、集热器总面积、贮热水箱体积、蓄热水箱体积。集热器安装倾斜角选取0~90°，通过单位面积集热器上的辐射量来衡量。集热器总面积分别按20%、30%、40%和50%选取，通过不同集热面积下的太阳能辅助空气源热泵热水系统的优化值来衡量。选取4个不等体积的贮热水箱，按蓄热量来衡量。选取4个不等体积的蓄热水箱，按用水温度能否满足要求和运行成本来衡量。通过优化得出最适合该浴池的热水系统。最后对哈尔滨市某大学学生浴池热水系统进行运行费用和环保效益分析。
[Abstract]:Rapid economic development will inevitably lead to excessive consumption of energy, worsening of the environment, and so on. Therefore, energy conservation and emission reduction, the use of new energy, Efforts to improve energy efficiency have become the top priority of current government work, and the solar assisted air-source heat pump hot water system has achieved this effect. Starting with the calculation method of solar radiation intensity, this paper studies the relevant theories of solar water heating system, air source heat pump hot water system and solar auxiliary air source heat pump hot water system. A complete solar assisted air-source heat pump hot water system is designed for a university student bath in Harbin. Then the simulation model of solar water heating system is established by using TRNSYS software. Air source heat pump hot water system simulation model and solar assisted air source heat pump hot water system simulation model. Through these three models, the influence factors of solar collector heat collection efficiency, including outdoor ambient temperature, solar radiation, are analyzed. The inlet water temperature of solar collector; the influencing factors of air source heat pump (COP), including outdoor ambient temperature, outlet water temperature of air source heat pump unit, and the performance of the system for each month and the whole operation cycle. On the basis of the above research, TRNSYS software is used to optimize the solar assisted air source heat pump hot water system, including the installation angle of the collector, the total area of the collector, the volume of the hot water tank. Volume of regenerative water tank. The angle of installation of the collector is 90 掳, measured by the amount of radiation per unit area of the collector. The total area of the collector is chosen by 20% 30% and 50%, respectively. The optimum value of solar assisted air source heat pump hot water system under different heat collecting area is measured. Four water storage tanks of different volumes are selected, and the heat storage capacity is measured by the heat storage capacity. 4 heat storage tanks with different volumes are selected. According to whether the water temperature can meet the requirement and the operating cost, the best hot water system for the bath can be obtained by optimization. Finally, the operating cost and environmental benefit of the hot water system for a university student bath in Harbin are analyzed.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU822

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