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Research On The Energy Conservation Of Central Heating Based On Climate Compensation

Posted on:2019-09-09Degree:MasterType:Thesis
Country:ChinaCandidate:J H QiaoFull Text:PDF
GTID:2382330572950809Subject:Architecture and civil engineering
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According to the national bureau of statistics,in 2016,the town resident population of our country are 792.98 million,the rate of urbanization is 57.35%,over the next 20 years,China's urbanization will be further development,in 2030,China's urbanization rate will reach to 70%.In north China the central heating system are widely used.With the rapid growth of the new buildings in cities,the central heating construction area also corresponding increase rapidly and the corresponding generated by central heating energy consumption is more and more.Green and low-carbon development in heating area is an important way to achieve the goal of "beautiful China".Based on the theory of climate compensator,this paper studies the case analysis of the central heating system and the core problem of the climate compensator from the climate compensation system: the research on the influence of meteorological factors on energy consumption.The formerh studies object of the central heating climate compensation system in a residential district of xi 'an city,and the test and analysis of its operation condition and present the solutions to the problems.The latter from the severe-cold,cold and hot-summer and cold-winter zone select Harbin,zhengzhou and hanzhong,study the influence of the three cities' near 10 years temperature,wind speed and solar total radiation data on the heating energy consumption.Stability of hydraulic property is a basic prerequisite to ensure the quality of heating,improve hydraulic balance is one of the effective ways to realize heating system energy.conservation Climate compensator is applied to the combination of balance hydraulic,can achieve better energy saving effect.This paper is based on a central heating system of compensation for climate system in xi 'an as the object.secondary heating network of the climate compensation heating system in 5 residential buildings during the heating period were tested and analysised the heat exchanger station operation condition.We found that the the indoor temperature not conform to rule,and the hydraulic balance calculation shows that the area of high and low secondary hydraulic disorder is serious,and hydraulic misadjustment belongs to disorder.The test results show that the actual flow rate of the cell is much larger than that of the design flow,meaning that the system operates in a largeflow and small temperature.After that,some Suggestions on the existing problems in thecommunity were proposed.This paper studies the influence of meteorological factors on the energy consumption of climate compensator.The paper analyses the influence of daily average dry bulb temperature,daily average wind speed and daily average solar radiation on heating energy consumption in cold and cold summer and hot winter.The F test and the correlation coefficient R were tested.The results show that:(1)the linear relationship between heating energy consumption and daily average dry bulb temperature,daily average wind speed and daily average solar radiation is significant,and the test results of both are consistent.(2)in addition to Harbin is the influence degree of temperature for heating energy consumption is the largest,followed the influence of wind speed,the influence of the daily total solar radiation for heating energy consumption of the smallest,the rest of the results of the two cities are the influence degree of temperature for heating energy consumption is the largest,the influence of the daily total solar radiation,the effect of wind speed on the heating energy consumption is minimal.There are 25 pictures,table 27,and 59 references in this paper.
Keywords/Search Tags:central heating, Climate compensation, Operational analysis, Meteorological factors
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