A study of seasonal heart storage in the earth ground as heat source of heat pump

地表季节性心脏储存作为热泵热源的研究

• 批准号: 04452252
• 负责人: MATSUMOTO Mamoru
• 金额: $ 3.97万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452252/
• 关键词: Heat storage in soil; Seasonal heat storage; Thermal well; Heat and moisture transfer; Soil moisture content; Heat pump system; 地表面温度; 降雨; 地表面温; 数値解析; 自然エネルギー; 蓄熱井戸; 伝熱数値解析; 地盤凍結

In this research, a annual heat storage in the earth ground is treated. Asystem of heat storage is composed of closed type thermal well, and assumed to be used as heat source of heat pump. To analyze heat storage process of those system, a mathematical model is presented in this study, in which heat transfer in the earth ground is modeled as simultaneous heat and moisture transfer. By applying the model, effects of moisture in soil, level of water table and precipitation on the earth surface can be analyzed. The model are used to analyze experimental results mentioned bellows and validity of the model are discussed.A experimental study was perfomed over 2 years. The system is composed of a thermal well, heat pump and a water circulation system. Under sinusoidal heat supply (positive during summer and negative during winter) to the well, water temperature in the well were measured over two years, and distributions of temperature and moisture potential in the earth ground were measured. Those measured results are compared with calculated results obtained by solving the mathematical model. They show very good agreement between them. Design method using the mathematical model presented, are shown.Of freezing and melting process in the earth ground, a mathematical model is presented. And numerical calculations are shown. In addition to those, a method of optimum control of heat storage is presented, treated as stochastic process of heat storage process.

本研究以一年一次的地下储热量为例进行探讨。蓄热系统由封闭式热井组成，并假定用作热泵的热源。为了分析该系统的储热过程，本文提出了一个数学模型，在该模型中，土壤中的热量传递被模拟为热湿同时传递。应用该模型可以分析土壤含水量、地下水位和降水对地表径流的影响。利用该模型对波纹管的实验结果进行了分析，并对模型的有效性进行了讨论。该系统由热井、热泵和水循环系统组成。在正弦供热（夏季为正，冬季为负）的井，在井中的水温进行了为期两年的测量，并在地球地面上的温度和水分的分布进行了测量。将实测结果与求解数学模型的计算结果进行了比较。他们之间表现出很好的一致性。本文介绍了利用所提出的数学模型进行设计的方法，并提出了一个土的冻结和融化过程的数学模型。并进行了数值计算。此外，还提出了一种将蓄热过程视为随机过程的蓄热最优控制方法。

项目成果

松本衛、鉾井修一、高揚: "多孔質材料の凍結と融解過程に関する研究-0℃以下におけるポテンシャル-含水率平衡関係の測定-" 日本建築学会大会学術講演会(環境工学). 919-920 (1992)

Mamoru Matsumoto、Shuichi Hokoi、Takayuki：“多孔材料冷冻和解冻过程的研究 - 0°C 以下潜在水分含量平衡关系的测量 -”日本建筑学会年会（环境工程）919-920（1992）。

松本衛、永井久也、牛尾智秋: "地盤蓄熱に関する研究(その3)年周実験とその結果" 日本建築学会大会学術講演会(環境工学). 1267-1268 (1993)

Mamoru Matsumoto、Hisaya Nagai、Tomoaki Ushio：“地热储存研究（第三部分）年度实验及其结果”日本建筑学会会议学术讲座（环境工程）1267-1268（1993）。

松本衛、永井久也、牛尾智秋: "地盤蓄熱に関する研究(その4)実験結果の解析" 日本建築学会大会学術講演会(環境工学). 1269-1270 (1993)

松本守、永井久哉、牛尾智明：《地热蓄热研究（第4部分）实验结果分析》日本建筑学会会议学术讲座（环境工程）1269-1270（1993）。

M.Matsumoto, Gao Yan etal: "An Analysis of Freezing -melting Process in Porous Materials -Measurment of Water Potential-liquid Moisture Relationship under 0-" Proc.of AIJ Kinki. Vol.32. 113-116 (1992)

M.Matsumoto，高岩等：“多孔材料冷冻-熔化过程的分析-0-下水势-液体湿度关系的测量”Proc.of AIJ Kinki。

M.Matsumoto, H.Nagai and T.Ushio: "Experimental Studies on Thermal Behavior of Thermal Well as Heat Source of Heat Pump -Experimental Results during A Year-" Proc.of AIJ Kinki. Vol.32. 101-104 (1993)

M.Matsumoto、H.Nagai 和 T.Ushio：“作为热泵热源的热井热行为的实验研究 - 一年的实验结果 -”Proc.of AIJ Kinki。