Temperature Prediction Method for Hot Water System
A technology of a hot water system and a prediction method, which is applied in the field of operation and management of solar thermal utilization systems, can solve problems such as inability to understand system overheating, system overheating, occurrence, etc., so as to reduce the probability of accidents, reduce operating costs, and improve The effect of precision
Active Publication Date: 2017-04-05
SHANGHAI XIANDAI ARCHITECTURE ENG & CONSULTING CO LTD
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The main disadvantages of these post-event prevention measures are: the user cannot know when the system overheats, and completely relies on the system itself for prevention and control; The system can still overheat in weather or beyond design conditions
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[0027] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims.
[0028] like figure 1 As shown, the embodiment of the present invention provides a temperature prediction method of a hot water system, the hot water system is preferably a solar water heating system, and the temperature prediction method of the solar water heating system includes the steps:
[0029] Step S1, record the solar radiation intensity, daily weather conditions and the temperature data of the water tank of the solar water heating system, the water temperature record of the water tank and the solar radiation intensity record period are less than or equal to 15 minutes, the water temperature record accuracy is 0.1°C, and the solar radiation intensity record accuracy is 0.1W / m2, the daily weather conditions are sunny, c...
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The invention provides a temperature predicting method for a water heating system. The temperature predicting method includes the steps of recording solar radiation intensities, daily weather conditions and water tank temperature data of the water heating system, summarizing the solar radiation intensities, the daily weather conditions and the water tank temperature data so as to obtain the daily water tank maximum temperature and the daily accumulated solar radiation intensity, obtaining a predicting model for the current-date water tank maximum temperature through a binary regression analysis prediction method with the current-date water tank maximum temperature, the early-date water tank maximum temperature and the current-date accumulated solar radiation intensity as variables, obtaining a scatter diagram between the daily weather conditioners and the current-date accumulated solar radiation intensity through a scatter diagram method, and predicting the future-date water tank maximum temperature according to the predicting model. The method has the advantages that the prediction data guarantee rate is high; the method is simple, reliable and convenient to apply and popularize; a user of the water heating system can easily take corresponding measures in advance, and the possibility of accidents is lowered; running cost of an enterprise is reduced.
Description
technical field [0001] The invention relates to the technical field of operation management of a solar heat utilization system, in particular to a temperature prediction method of a solar water heating system. Background technique [0002] In the practical application of the solar thermal utilization system, the parameter selection of the system is generally determined according to the parameters in winter. Due to the imbalance of solar energy in winter and summer, the heat production in summer is greater than the demand, resulting in excess heat, which contributes to the solar thermal utilization system. posed some problems. How to avoid system overheating is a problem that cannot be ignored in the design of solar thermal utilization systems, and it is also an important factor that plagues the large-scale promotion of solar thermal utilization systems. [0003] Solar water heating system is a common solar heat utilization system. At present, the "Technical Specifications ...
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IPC IPC(8): G06F11/30
Inventor 夏麟田炜沈迪
Owner SHANGHAI XIANDAI ARCHITECTURE ENG & CONSULTING CO LTD