Prediction method of heat load required per unit building area in buildings during heating period

Abstract

The present invention relates to a method for predicting the heat load required per unit building area in a building during the heating period, which includes: step 1, assigning a value to the first moment t, and calculating the second moment t' according to the formula t'=t+ξ, In the formula, ξ is the preset delay time (h); step 2, predict the expected indoor and outdoor temperature difference at the second moment according to the indoor design temperature, the solar irradiance at the second moment, and the real-time outdoor temperature at the second moment; step 3, according to The predicted indoor and outdoor expected temperature difference predicts the required heat load per unit floor area of ​​the building at the first moment. The prediction method can accurately predict the heat load required by the unit building area of ​​the building, and ensure that the actual indoor temperature regulated by the central heating system is more stable and reliable close to the indoor design temperature.

Description

technical field [0001] The invention belongs to the technical field of central heating, and in particular relates to a method for predicting the heat load required by unit building area in a building during the heating period. Background technique [0002] During the heating period, the heat load supplied by the central heating system is approximately equal to the sum of the heat load required by the building and the heat loss of the central heating system, and the heat load required by the building is approximately equal to the unit floor area of ​​the building The product of the required heat load and the construction area of ​​the building (referring to the total construction area), so accurately predicting the required heat load per unit construction area in the building is a necessary condition for the efficient, stable and energy-saving operation of the central heating system. [0003] At present, the method for predicting the heat load required per unit floor area in ...

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Problems solved by technology

The inventor found that when implementing the present invention, solar radiation has a great influence on the indoor temperature and the surrounding temperature of the building. If the influence of solar radiation illumination on the daily indoor and outdoor expected temperature difference is not eliminated or reduced when calculating the indoor and outdoor expected temperature difference, the The prediction method will not be able to accurately predict the heat load required per unit building area, making it difficult for the actual indoor temperature regulated by the central heating system to approach the indoor design temperature stably and reliably

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