Study On Energy Saving Measurement And Verification Method Of Ground Source Heat Pump System

With the development of ground source heat pump technology,the utilization and development of geothermal energy has become a hot spot.At present,the ground source heat pump project in China has been increasing rapidly.But at present the standard technology of ground source heat pump industry development is not perfect,especially for the measurement and certification of energy saving of ground source heat pump is also a lack of detailed standards,measurement and verification methods to develop the energy saving of ground source heat pump system to promote the implementation of energy-saving,GSHP projects and contract energy management project and related standards to improve the energy efficiency of unit has important significance.There are many ways to measure energy saving,different energy systems have different measurement methods.According to the relevant provisions of the state's energy measurement method of "energy measurement and verification rules" and "international energy efficiency measurement and certification regulations",to carry out energy saving calculation using the base energy consumption-the impact factor method is put forward for the GSHP system operation stage,the GSHP system design stage,put forward to building in the same conditions in summer or winter by using electric refrigeration and air conditioning heating boiler as energy consumption benchmark,considering the temperature correction,calculation of energy saving of ground source heat pump system.Determination and verification of energy saving of ground source heat pump system.The main contents of this paper are as follows:Firstly,a method to divide the GSHP energy boundary,according to the composition and energy components of ground source heat pump system will be divided into five sub boundaries: heat pump unit boundary,user end device boundary,user side transport system boundary,heat exchanger boundary,auxiliary equipment and a system boundary boundary.The five sub boundaries are included in the system boundary,that is,a ground source heatpump system consists of five parts.Secondly,introduced the IPMVP,put forward IPMVP method is introduced into the GSHP system,the establishment of the GSHP system "base energy consumption-the impact factor model,calculation formula to determine the standard of energy consumption.Based on the ground source heat pump system,the energy measurement and verification method is presented.The calculation method of energy saving of the ground source heat pump system is introduced.The influence factors of energy consumption--based method,to determine the reference period after consumption and calibration measurement of ground source heat pump system of energy saving,the completion of the energy measurement and verification.Finally,the current ground source heat pump project in contract energy management application process problems are discussed,finally obtained in ground source heat pump industry,the cost of hosting types are more appropriate,followed by energy saving guarantee,can greatly reduce the technical risk.The establishment of this method will provide a reference for the establishment of other types of ground source heat pump system or energy system energy measurement standards,but also provide a basis for the comparison of different energy systems.