The Operation Energy-saving Technology Research Of Fan-coil Air-conditioning System

The fan-coil air-conditioning system is the most widely used form of an air-conditioning system at present. In order to adapt the whole year different season air conditioning cooling load changes, useing the different chilled water temperature, may achieve the goal of air-conditioning system energy-saving operation.Variable fan-coil air-conditioning systems running chilled water temperature becomes an important component of energy-saving air-conditioning system running, from the 20th century, the beginning of the 1990s receives the concerns of China's air conditioning researchers .At present domestic and foreign researchers have conducted the certain analysis research to energy-saving effect of variable the air-conditioning system chilled water temperature,but mostly only carried on the analysis to the refrigerator energy-saving situation, deficiently variable chilled water temperature to the equipment (including refrigerator, fan-coil unit) performance influence of quantitative analysis, also has not variable chilled water temperature to the air-conditioning system whole year the energy-saving influence of quantitative analysis.To address these problems, the issues to do the following work : Subei areas of public buildings operation of the air conditioning system of investigation and analysis, selection of Xuzhou City, Jiangsu Province the four different types of air conditioning systems, the survey of the operation of the refrigerator; set up chiller compressor, condenser, evaporator of the equation; using system simulation methods, quantitative analysis of the temperature increase of chilled water chiller performance; experimental analysis on the performance of the fan-coil units, study of the fan-coil air-conditioning temperature change operation on the end of air handling equipment handling capacity, fan-coil air-conditioning systems for temperature changes provide the basis for energy-saving operations; using partial load frequency analysis of building energy consumption, determine malls, office buildings in different seasons of chilled water temperature, change the refrigerator temperature operation of the annual energy consumption of analysis.Through the above work come to the conclusion that enriched the fan-coil air-conditioning system energy-saving operation technology research, and proposed the fan-coil air-conditioning system changing the chilled water temperature operation plan.