Study On Energy Saving Mode Of Ground Source Heat Pump System With Variable Water Temperature

The operation management mode of water temperature is a kind of application of energy-saving air-conditioning is not yet universal,due to the differences in the various regions and between different systems,leading to the regulation within the scope of application to carry out a large-scale promotion,but it still has significant effect in energy saving.Variable water temperature control research is based on the fixed temperature,foundation the constant flow of ground source heat pump system,to ensure that the indoor environment is the premise of comfort air conditioning range,according to the changes of terminal load increase or decrease the water temperature so as to improve the unit efficiency,reduce the energy consumption.This article is based on the GSHP system constant flow,constant water temperature operating conditions for the comparison object,the research of ground source heat pump air-conditioning system variable water temperature control is feasible and energy-saving effects in use.First,through theoretical research,confirm whether variable temperature regulation in GSHPS has the potential of energy saving,and through the actual project case analysis of the cooling in summer and winter heating energy saving effect.The actual case is an office building in Suzhou area of ground source heat pump system as the object of variable temperature regulation on the regulation for cooling in summer(winter heating)under the condition of working conditions according to the outdoor climate change provided(indoor load)High(low)the water temperature of the unit,indoor(end)the change of the load is mainly through the frozen water(hot water)to reflect the supply and return water temperature difference,and test records throughout the summer cooling and winter heating condition variable water temperature operation data in the adjustment process.In order to reflect the effect of energy saving of ground source heat pump system with variable better the water temperature regulation,in the actual system data,using the BIN parameter method and the cooling load time frequency method(CLTF)for summer running are analyzed,the calculation method for the estimation of error is small,does not affect the effect of energy saving effect analysis.The analysis results show that the application of variable temperature regulation Has obvious energy-saving effect and feasibility in GSHP system.And in the course of the study found that in the condition of partial load variable temperature regulation process,the load rate is low,the energy saving effect is more obvious.At the same time in an office building in Hangzhou ground source heat pump system for the comparison object,discusses the influence of the environment in different energy saving mode the comparison results show that regional differences lead to climatic conditions have obvious influence on the variable temperature regulation,different regulation pattern of narrow scope,the need to adjust the research way.Due to the popularity of the application of ground source heat pump system,the energy saving work also,variable water temperature this study is committed to building a suitable Suzhou shallow ground source heat pump system regulation mode,variable water temperature regulation not only can improve the efficiency of the unit,to reduce energy consumption,contribute to social energy conservation work,more conducive to improving ground source heat pump system to promote the market competitiveness,the scope of its application in the whole society.