河 北 工 业 大 学
毕业论文
作 者： 张环 学 号： 110638 学 院： 能源与环境工程学院
系(专业)： 热能与动力工程
题 目： 太阳能跨季节储热系统非供热季运行参数的
试验与模拟
指导者： 王恩宇 教授
评阅者：
2015 年 6 月 11 日
毕业设计（论文）中文摘要
太阳能跨季节储热系统非供热季 运行参数的试验与模拟 摘要：本文以河北工业大学某建成的太阳能辅助地源热泵为研究对象，在对太阳能跨季节储热系统实验研究的基础上，基于TRNSYS16模拟软件建立了太阳能跨季节储热系统非供热季的仿真模型。 本文对系统采集的3、4月份实验数据进行了研究分析，并重点对集热、储热过程的温度曲线，系统每天的集热量、储热量、集热效率、储热效率以及总效率进行对比分析。并得出实验条件下的优选运行参数，为仿真模拟提供了指导作用。 通过调整系统参数，输入实测典型天的气象数据，将实验结果与模拟结果对比，得出集热量的相对误差为4.29%，储热量的相对误差为8.08%，验证了模型的正确性。对系统进行模拟，把储热过程划分不同阶段，选择各阶段的典型天。用单一变量的原则，不断改变各运行参数。观察模拟结果，进而得出非供热季的最佳运行策略。非供热季的最佳控制策略为：初期集热启停运行参数为为6℃、3℃，储热启停运行参数为48℃、4℃，中期集热启停运行参数为为6℃、3℃，储热启停运行参数为40℃、4℃，末期集热启停运行参数为为12℃、3℃，储热启停运行参数为40℃、4℃。 关键词：太阳能 ；TRNSYS； 运行参数； 跨季节储热 ；模型验证
毕业设计（论文）外文摘要
Title Experimental and simulative research on the operating parameters of solar seasonal heat storage system in on-heating season Abstract：This paper, taking a built in Hebei university of technology of solar energy auxiliary ground source heat pump as the research object. On the basis of experimental study of Solar energy across the seasonal heat storage system. Based on TRNSYS 16 simulation software to build the solar cross seasonal heat storage system simulation model of the non-heating season. In this paper, the system of acquisition in March and April of the experimental data are analyzed. And the temperature curve of heat collection and heat storage, system daily quantity of heat collection and heat storage, collection and store heat efficiency and total efficiency were analyzed. It is concluded that under the experimental conditions of optimizing operation parameters, provides guidance for the simulation. By adjusting the system parameters, the input measured meteorological data of typical day, and comparing the result of the experiment and simulation results, draw that the heat collection relative error is 4.29%, the relative error of the heat storage for 8.08%.So the simulation model is suitable .For simulating system, divides the heat accumulation process at different stages. And select different stages of the typical day.With the principle of single variable, change the operation parameters constantly. By observing the simulation results, concludes that the optimal operation strategy of the Non-heating season. In the early stages of the non- heating season, it is concluded that the optimal operation parameters for heat
collection start temperature difference 6℃, stop temperature difference 3℃, heat storage start temperature 48 ℃ and heat storage stop temperature difference 4 ℃. In the middle stages of the non- heating season, it is concluded that the optimal operation parameters for heat collection start temperature difference 6℃, stop temperature difference 3℃, heat storage start temperature 40 ℃ and heat storage stop temperature difference 4 ℃. In the end stages of the Non- heating season, it is concluded that the optimal operation parameters for heat collection start temperature difference 12℃, stop temperature difference 3℃, heat storage start temperature 40 ℃ and heat storage stop temperature difference 4 ℃. Keywords： solar energy ； TRNSYS ； operation parameters ； seasonal heat storage ； model validation
目录
1 绪论 ................................................................. 1 1.1课题研究背景及意义 .................................................. 1
1.1.1发展背景 ...................................................... 1 1.1.2课题研究的目的及意义 .......................................... 1 1.2课题的研究现状 ...................................................... 2 1.2.1国外研究现状 .................................................. 2
1.2.2国内研究现状 .................................................. 3 1.3本课题研究内容和方法 ................................................ 5
1.3.1研究内容 ...................................................... 5 1.3.2研究方法 ...................................................... 5 2 太阳能跨季节储热系统非供热季简介 ..................................... 6 2.1节能楼建筑概况 ...................................................... 7 2.2太阳能跨季节储热系统的组成 .......................................... 7
2.2.1太阳能集热器 .................................................. 7 2.2.2蓄热水箱 ...................................................... 8 2.2.3储热地埋管小井群 .............................................. 8 2.3太阳能跨季节储热非供热季系统的控制过程 .............................. 9 3 太阳能跨季节储热系统的试验分析 ...................................... 10 3.1 试验过程 .......................................................... 10
3.1.1 试验目的 ..................................................... 10 3.1.2试验方案 ..................................................... 11 3.2集热和储热过程的温度曲线分析 ....................................... 11 3.3太阳能跨季节储热系统数据处理 ....................................... 14 4 太阳能跨季节储热系统TRNSYS16模型 ................................... 19 4.1建立TRNSYS16模型的目的 ............................................ 19 4.2太阳能跨季节储热系统模型的建立 ..................................... 20 4.3太阳能跨季节储热系统模拟过程中的部件以及部件参数的设置 ............. 21 4.4模型验证的有关计算 ................................................. 23
4.4.1典型天的选择 ................................................. 23 4.4.2典型天的数据计算 ............................................. 24 4.4.3典型天气象数据输入及模型验证分析 ............................. 26 5 太阳能跨季节储热系统的运行策略 ...................................... 28 5.1典型天的瞬时模拟 ................................................... 28 5.2不同阶段典型天的运行策略 ........................................... 30