Design parameter equation for reasonably configuring solar water heating engineering main body equipment
A technology of solar water heating and design parameters, which is applied in calculation, complex mathematical operations, computer components, etc., can solve the problem of random changes in meteorological resources that cannot reflect radiant energy, investment and energy saving that cannot achieve ideal results, and engineering component design matching Unreasonable and other issues
Pending Publication Date: 2019-08-06
湖南省农村科技发展中心
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Problems solved by technology
The application of solar engineering hot water units with this configuration in different latitudes has the following problems: first, it cannot reflect the characteristics of random changes in meteorological resources such as radiant energy and temperature; second, the design and matching of engineering components are unreasonable. The standard formula is calculated and determined, but the capacity of the water storage tank and auxiliary heating equipment is not determined by formula calculation, which is arbitrary and does not reflect the role of auxiliary functions in solar radiation heating; third, investment and energy saving cannot achieve ideal results
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[0019] specific implementation plan
[0020] Taking the solar hot water projects in Haikou, Sanya, and Xisha as examples, this algorithm is used to solve the collector area, water storage tank, and auxiliary heating device capacity required for daily production of 55°C and 80 tons of hot water load, and compare with existing calculations method results for comparison;
[0021] One is to calculate the total area of the collector, the steps are:
[0022] First, apply the basic formula (1) of this formula, input the basic data of daily radiation, initial temperature and other empirical values in the solar water heating projects in the three places, and solve the daily water production, cumulative water production and average daily water production of the collector water volume;
[0023] Second, different methods are used to calculate the daily water production of the collector area, and the classification, comparison and analysis are carried out by region. The results are s...
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The invention relates to a design parameter algorithm for reasonably configuring solar water heating engineering main body equipment, which is established on the basis of a formula for calculating thetotal heat collection area provided by the national GB50364-2005 technical specification.. The method comprises the following steps: firstly, adjusting an expression for calculating the total area ofthe heat collector into an expression for calculating the water yield of the heat collector, secondly, changing the average daily irradiation amount and the initial temperature of water in the formula into random variable values changing day by day from determined values, and thirdly, separating the designed hot water load from the formula to become a reference value of the water yield of the heat collector. By multiple clustering analysis, a design parameter algorithm of heat collector area, water storage tank capacity and auxiliary heating device capacity configuration is provided; throughmeasurement and verification of Haikou, Sanya and Xisha solar hot water projects, optimal and reasonable matching of three main body devices including the heat collector, the water storage tank and the auxiliary heating device according with internal characteristics of solar radiation produced hot water is realized, and win-win benefits of investment saving and energy saving are achieved.
Description
technical field [0001] This patent relates to the field of solar water heating engineering design, and specifically relates to a design parameter calculation formula for rationally configuring the main equipment of solar water heating engineering, referred to as the algorithm. Background technique [0002] The solar water heating project is composed of a heat collector, a water storage tank, an auxiliary heating device and a system for transmitting cold and hot water and controlling operation. At present, in solar water heating projects, there are generally three methods used to match the capacity of heat collectors, water storage tanks and auxiliary heating devices. One is to follow the national building solar water heating system application technical specifications (GB50364-2005) The total area of the collector is calculated and determined by the formula. The second is based on the water production of one or a group of vacuum tubes on a sunny day provided by the manufac...
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IPC IPC(8): G06F17/50G06F17/18G06K9/62
CPCG06F17/18G06F30/20G06F18/23
Inventor 杜佳刘容刘玉龙王长安汪国杰
Owner 湖南省农村科技发展中心