Optimum Operation of Thermal Storage Air-conditioning System of Temperature-stratified Type

温度分层式蓄热空调系统优化运行

• 批准号: 07650687
• 负责人: SAGARA Kazunobu
• 金额: $ 1.41万
• 依托单位: Mie University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650687/
• 关键词: thermal storage tank; simulation; model; optimum operation; buoyancy; temperature stratification; refrigerator

A theoretical mixing model for themal storage tank of temperature-stratified type was developed in order to study the optimum operation strategy of thermal storage air-conditioning system. The mixing model predicts temperature profile in the storage tank under any time-variable input condition. Furthermore, a heat pump model was also developed in order to study the operating characteristics of the whole thermal storage air-conditioning system. The following is a summary of the obtained results. 1. A mixing model was developed through experiment results conducted in order to study the mixing characteristics in tank under some variable input conditions. 2. Validity of the model was confirmed through experiment under input condition simulated charge and discharge cycle of actual air-conditioning system. 3. Validity of the model was also confirmed through measured data of an actual air-conditioning system. 4. Outlet temperature model was developed through experiment in which temperature and flow velocity distributions around the outlet were measured. 5. A theoretical model for refrigerant cycle, condenser, evaporator and compressor of air-source heat pump was studied in order to simulate the behavior of the whole thermal storage air-conditioning system.

为了研究热储存空调系统的最佳操作策略，开发了一种针对温度分层类型的式储罐的理论混合模型。混合模型可以预测在任何时间变化的输入条件下储罐中的温度曲线。此外，还开发了一个热泵模型，以研究整个热存储空调系统的工作特性。以下是获得结果的摘要。 1。通过进行的实验结果开发了混合模型，以研究在某些可变输入条件下储罐中的混合特性。 2。通过在输入条件模拟的电荷和实际空调系统的放电周期的实验中确认模型的有效性。 3。通过实际空调系统的测量数据证实了该模型的有效性。 4。通过实验开发出出口温度模型，在该实验中，测量了出口周围的温度和流速分布。 5。为制冷剂循环，冷凝器，蒸发器和压缩机的理论模型研究了空气源热泵，以模拟整个热储存空调系统的行为。