通过分析城市集中供热“大温差，小流量”的运行模式，得出提高供水温度，将提高供热系统的输送效率、节约能源，减少用地，降低工程造价及运行成本。%By analyzing the operation mode of urban central heating:"big temperature difference and low flow", this paper found that to raise supply water temperature will improve transportation efficiency of heating system, save energy, reduce land and lower construction cost and operating costs.
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