Prediction of Stored Heat and Optimum Operation in Temperature-stratified Thermal Storage Tank Consisting Several Tanks Connected in Series

多罐串联温度分层储热罐储热量预测及优化运行

基本信息

批准号：
13650650
负责人：
SAGARA Kazunobu
金额：
$ 2.05万
依托单位：
Osaka University (2003)Mie University (2001-2002)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

项目摘要

In this research project, a mixing characteristics under variable input condition was studied for a temperature-stratified thermal storage tank consisting several tanks connected in series and a prediction method of stored heat in tank was presented in order to realize the optimum operation of this thermal storage tank by using computer simulation.In the first year, an experimental set-up was prepared by connecting several divided water tanks in series and the basic mixing characteristics was studied under various input condition of constant flow rate and input temperature, and some mathematical models ware presented for the mixing characteristics, the connecting holes through tank partition and the inlet/outlet.In the second year, a control system was prepared and it can arbitrarily change flow rate and input temperature into thermal storage water tank by personal computer, and a mixing model which can be applied to the variable input condition was developed from experimental studies and was verified its prediction performance of transient temperature response and stored heat in tank by using measured data in an actual operated thermal storage system.In the last year, a series of experiment was conducted under the condition in which water input was restarted after interrupting once, and the mixing model for variable input condition was examined in the restart condition. And CFD simulation was conducted to study flow pattern in the storage tank.

在该研究项目中，研究了在可变输入条件下的混合特性，用于用于温度分层的热储罐，该储物罐组成的几个储罐组成，并提出了一种在水箱中储存的热量的预测方法，以通过使用计算机模拟来实现该热储物罐的最佳操作。在第一年中，在第一年进行了多个级别的水箱和级别的级别级别的级别级别，以进行计算机模拟。 temperature, and some mathematical models ware presented for the mixing characteristics, the connecting holes through tank partition and the inlet/outlet.In the second year, a control system was prepared and it can arbitrarily change flow rate and input temperature into thermal storage water tank by personal computer, and a mixing model which can be applied to the variable input condition was developed from experimental studies and was verified its prediction performance of transient temperature response and stored heat in tank by using measured data in an actual在过去的一年中，在中断一次后重新启动水输入的条件下进行了一系列实验，并在重新启动条件下检查了可变输入条件的混合模型。进行了CFD模拟以研究储罐中的流动模式。