太阳能供暖在红原机场的应用研究

发布时间：2018-03-23 08:09

本文选题：高海拔寒冷地区　切入点：太阳能供暖　出处：《重庆大学》2014年硕士论文　论文类型：学位论文

【摘要】：高海拔寒冷地区具有海拔较高、气压低、气温低等特点，春秋两季较短，冬季严寒漫长，供暖能耗占建筑总能耗的比例较高。高海拔寒冷地区缺乏常规能源，且交通运输不便，但高海拔寒冷地区太阳辐射强，大部分地区处于太阳能资源一类和二类地区，利用当地丰富的太阳能资源供暖已经成为高海拔寒冷地区供暖的一个重要选择。在太阳能供暖系统中，合理的设计对系统运行至关重要，但目前在高海拔寒冷地区，针对太阳能供暖系统（特别是直接供暖模式）全供暖季性能及设计优化的研究很少。因此，本文的目的在于以红原机场太阳能供暖系统为基础，研究太阳能供暖系统在高海拔寒冷地区的运行性能，优化太阳能供暖系统在高海拔寒冷地区的系统配置，为太阳能供暖系统在高海拔寒冷地区的应用提供一定的指导。首先，本文利用DeST对以红原为代表的高海拔寒冷地区的室外气候特征及红原机场中不同类型建筑的自然室温和热负荷进行分析，对高寒地区室内热环境的调控提供指导。其次，建立了红原机场太阳能+水源热泵供暖系统数学模型，介绍了本文所研究的红原机场太阳能供暖系统的基本原理和运行模式，详细地给出太阳能集热器、水源热泵、蓄热水箱及系统控制策略的数学模型。再次，，根据太阳能+水源热泵供暖系统的主要组件的数学模型，选择适合本文所研究系统的TRNSYS部件。利用TRNSYS自带的的水源热泵部件与EQUTATION，将文中所建立的水源热泵数学模型与TRNSYS中的水源热泵模型结合起来建立本文模拟所需要的水源热泵TRNSYS部件。在此基础上建立所研究太阳能+水源热泵供暖系统的TRNSYS模型，并利用实测数据对系统TRNSYS模型的正确性进行验证，进而对太阳能+水源热泵供暖系统的运行性能进行分析，并与水源热泵供暖系统和燃气锅炉供暖系统进行经济性和节能性的对比分析。最后，在太阳能+水源热泵供暖系统TRNSYS模型及运行特性分析的基础上，对太阳能集热器的安装角度、蓄热装置体积、太阳能集热器面积和供暖温度进行了优化，考察这些参数对系统性能的影响。以经济性和节能性为优化指标，兼顾系统性能，提出红原机场太阳能供暖系统适宜的系统配置，为高海拔寒冷地区太阳能供暖系统的应用提供一定的指导。
[Abstract]:The cold area at high altitude has the characteristics of high altitude, low air pressure and low temperature. The spring and autumn seasons are short, the winter is long, the heating energy consumption is high in the total building energy consumption, and the high altitude cold area is short of conventional energy, and transportation is not convenient. However, the solar radiation is strong in cold areas at high altitudes, and most of the areas are in the first and second class areas of solar energy resources. Heating with abundant local solar energy resources has become an important choice for heating in cold areas at high altitudes. In solar heating systems, reasonable design is essential to the operation of the system, but at present in cold areas at high altitudes, There is little research on the performance and design optimization of solar heating system (especially direct heating mode). Therefore, the purpose of this paper is to base on the solar heating system of Hongyuan Airport. This paper studies the performance of solar heating system in cold regions at high altitude and optimizes the configuration of solar heating system in cold regions at high altitude, which provides some guidance for the application of solar heating systems in cold regions at high altitude. Firstly, DeST is used to analyze the outdoor climate characteristics of the high altitude cold area represented by Hongyuan, and the natural room temperature and heat load of different types of buildings in Hongyuan Airport, which provides guidance for the regulation and control of indoor thermal environment in the alpine area. Secondly, the mathematical model of the solar energy source heat pump heating system in Hongyuan Airport is established, the basic principle and operation mode of the solar energy heating system of Hongyuan Airport are introduced in this paper, and the solar collector and water source heat pump are given in detail. Mathematical model of heat storage tank and system control strategy. Thirdly, according to the mathematical model of the main components of the solar water source heat pump heating system, Select the TRNSYS parts suitable for the system studied in this paper. By using the water source heat pump components and EQUTATION of TRNSYS, the mathematical model of water source heat pump established in this paper is combined with the water source heat pump model in TRNSYS to establish the simulation requirements of this paper. On the basis of this, the TRNSYS model of solar water source heat pump heating system is established. The correctness of the TRNSYS model of the system is verified by the measured data, and the operation performance of the solar water source heat pump heating system is analyzed. Compared with water source heat pump heating system and gas boiler heating system, the economy and energy efficiency are analyzed. Finally, on the basis of TRNSYS model and operation characteristic analysis of solar water source heat pump heating system, the installation angle of solar collector, the volume of heat storage device, the area of solar collector and the heating temperature are optimized. The influence of these parameters on the system performance is investigated. Taking the economy and energy saving as the optimization index and taking the system performance into account, the suitable system configuration for the solar energy heating system of Hongyuan Airport is put forward. It provides some guidance for the application of solar energy heating system in cold area at high altitude.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU832

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