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How is central air conditioning in office buildings billed?
The core logic of central air conditioning billing in office buildings is the combination of allocation and measurement, generally including three mainstream methods: area sharing, independent electricity meters, and cooling capacity measurement.. 1. The lowest cost billing method is to evenly distribute the office area. The air conditioning cost for the entire floor is calculated as (total electricity cost+maintenance cost) multiplied by the sharing coefficient, and tenants pay according to the proportion of the leased area. Commonly seen in ordinary office buildings, but there is an unfair phenomenon of large units having multiple stalls and small units having fewer stalls instead of more. 2. Independent electricity meter billing is applicable to Grade A office buildings with independent glass curtain walls, where each unit is equipped with a dedicated air conditioning meter. Cost=Air conditioning host basic fee+actual electricity consumption x electricity price, energy consumption can be queried in real-time through the mobile app. According to data from an international financial center, this method can reduce ineffective energy consumption by 25% -30%. 3. Cooling flow billing (a mainstream new trend) installs flow meters at each air outlet of the central air conditioning pipeline to accurately calculate the refrigerant flow in each area (measured in RT tons or KW). A case study of a networked management platform shows that enterprises using this system can save 18% -22% on summer air conditioning costs, making it particularly suitable for VRV multi split systems. Attention should be paid to billing details: Meng Vertical Bridge - usually in
2. How to charge for a central air conditioning flowmeter
The billing of a central air conditioning flowmeter is generally based on parameters such as water flow rate, temperature difference, and specific heat capacity, and is carried out according to the following steps and methods: Basic principle: Calculate the cooling or heating capacity based on the formula (q=v × ρ × cp × Δ t), where (q) is the cooling or heating capacity, (v) is the flow rate, (ρ) is the density of water (about (1000kg/m ³)), (cp) is the specific heat capacity of water (about (4.18kJ/kg ·° C)), and (Δ t) is the temperature difference between the supply and return water.
. Billing process: Install equipment: Install flow meters in the main water pipeline to measure the flow of cold or hot water; Install temperature sensors in the cold water and return water pipelines to measure the temperature difference between the water. Data collection and
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