自然循环热水采暖双管系统作用压差计算方法的改进

AN IMPROVEMENT ON CALCULATING METHOD OF WORKING PRESSURE DIFFERENCE IN NATURAL CYCLE TWO-PIPE MCT-WATER HEATING SYSTEM

文章提出计算每个管段的温降与平均水温．然后计算各立管段中水的平均密度，得出各层散热器作用压差的新方法。此外，在计算常见系统的基础上回归出指数模型公式，用以替代现行方法，该法比原有算法有较高的准确度，且便于在计算机上运算。

This paper advances a new method to determine the working pressure difference of any radiator,in which the temperature drop and mean temperature in each and every pipe are firstly,calculated and then the mean density of the feedwater and backwater in each vertical pipe section on any floor.In addition,according to the results of popular systems some formulas in exponential type are regressively established and by which existing method is replaced.It notonlyhas high precision not only,but also. can be easily operated on the computer