Influential factors for unit consumption in Sebei-Xi'ning-Lanzhou Gas Transmission Pipeline

Taking the Sebei-Xi'ning-Lanzhou Gas Transmission Pipeline as an example, this paper discusses the variation of energy consumpion in long-distance gas pipeline with different influential factors, in aspects of throughput, temperature and compressor efficiency, in order to conserve energy and reduce consumption, identify the potential area for energy conservation and provide the criteria for the reasonable analysis on energy consumption. Regressive analysis is conducted to compare and analyze the influeces of influential factors, and identify the relationships between such factors, so as to define the most influential ones. The analysis results indicate that, (1) the throughput, outlet pressure of gas compressor station and compressor effectiveness have major influences on energy consumption of long-distance gas pipeline, (2) ground temperature and outlet temperature of gas compressor station have minor influences on energy consumption of long-distance gas pipeline, and (3) energy consumption increases as pipeline inventory decreases and the lower the pipeline inventory is, the faster the energy consumption increases.