Public building energy consumption auditing statistics splitting method

Abstract

The invention belongs to the field of building energy consumption auditing. A public building energy consumption auditing statistics splitting method can conduct efficient energy consumption statistics on buildings different in area, size and usage situation, is wide in application range and performs flexible and changeable splitting statistics calculation according to specific situation. The monthly electricity bill of a building is divided into air conditioner energy consumption, internal load energy consumption and other energy consumption. The public building energy consumption auditing statistics splitting method comprises the steps that 1 monthly illumination energy consumption and device energy consumption are calculated; 2, surrounding structure load, fresh air load and internal personnel load are calculated; 3, air conditioner load CL of the building is calculated; 4, a rated SCOPe of a system is calculated according to an actual investigating and surveying value; 5, a formula of the SCOP is calculated, wherein a system alpha is unknown; 6, the theoretical EHVAC' of the air conditioner system is calculated; 7, the actual EHVAC of the air conditioner system is calculated, wherein Eother is unknown. The method is mainly applied to an energy consumption auditing occasion.

Description

technical field [0001] The invention belongs to the field of building energy consumption auditing of public institutions, and relates to a statistical splitting method for building energy consumption auditing of public institutions. Energy saving potential of sub-systems. More specifically, it involves the splitting method of public building energy consumption audit statistics. Background technique [0002] According to statistics, the total area of ​​large public buildings in my country is less than 4% of the total area of ​​urban buildings, but the total energy consumption accounts for 22% of the total power consumption of cities and towns in the country. The annual power consumption per unit area of ​​large public buildings reaches 70-300kW h. It is 10 to 20 times that of ordinary residential buildings, and has great energy-saving potential. In terms of energy consumption statistics, the total energy consumption of a building is composed of many sub-items. In the actual...

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Problems solved by technology

[0011] 1. The existing technology is to measure different energy consumption, such as electric energy, by measuring small sub-meters, using different electrical appliances to install an electric meter to measure the data, and then perform statistical analysis of a large amount of data, but there is no one A systematic and detailed statistical calculation method for the splitting of electric energy and energy consumption, so that it is impossible to conduct a convenient audit of the electric energy and energy consumption of public buildings

[0012] 2. The applicability of existing technical methods is low

Most of the sub-meter measurement methods currently used can only be applied to buildings with fixed installed equipment, and cannot be reused. At the same time, corresponding adjustments and corrections cannot be made according to the area and shape of the building.

[0013] 3. The accuracy of the existing energy consumption statistical audit method is not high, and the error is large

The existing technology can not flexibly adjust the energy consumption statistics of public buildings according to working hours, personnel habits, working conditions, etc., and most of the calculation coefficients are selected from standard recommended values ​​or empirical values, resulting in low accuracy of calculation results and large errors

[0014] 4. The prior art does not systematically classify power consumption

During the statistical audit of electric energy consumption, the statistics of some electric energy consumption will be missed or the electric energy of the same electrical appliance will be repeatedly counted, which will make the classification of electric energy consumption unclear and interfere with the statistical results of energy consumption

[0015] 5. The existing technology needs to install measurement equipment, analysis and simulation software, etc., which requires a lot of cost and the complete system is not easy to reuse, so it is difficult to promote

[0016] 6. Most of the existing technologies conduct joint split statistical analysis of energy consumption through complete modules such as on-site measurement, data transmission, and calculation analysis. If new energy consumption is added, it is inconvenient to carry out technical expansion

[0017] 7. The existing technology is inconvenient to use for buildings already in service, and it is necessary to reinstall equipment and other modules in the building, which may affect the structure and aesthetics of the building

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