Abstract
A good heating regulation should be able to maintain relatively stable indoor temperature. Hence, the dynamic control scheme of a heating system should be formulated considering outdoor temperature, solar radiation, wind speed and direction, and other meteorological factors, rather than just the outdoor temperature. A dynamic control strategy of a heating system based on an integrated meteorological parameter is proposed, which converts several parameters into one using the equivalent influence method. An analysis of the thermal dynamic characteristics of both the building envelope and the heating system established a complete feedforward control scheme. A residential community in north China was selected to conduct operation data monitoring using the aforementioned model. Results showed that the new control scheme could effectively stabilize indoor temperature. The variance of the indoor temperature was 0.48 using the traditional method, and that of the test object was 0.31 after adopting the proposed model.
Highlights
In addition to outdoor temperature, indoor building temperature is affected by solar radiation, rain or snow, speed and direction of wind, and other meteorological factors
Different meteorological parameters affect indoor temperature through different parts of the building envelope, and the heating system influences the indoor condition through cooling equipment
In order to establish an accurate regulation scheme of a heating system, it is necessary to clarify the impact of different meteorological parameters on different parts of the envelope, which is an hourly dynamic heat load
Summary
In addition to outdoor temperature, indoor building temperature is affected by solar radiation, rain or snow, speed and direction of wind, and other meteorological factors. The influence of these meteorological parameters has been increasingly important, especially with the frequent occurrence of extreme weathers in China in recent years. Different meteorological parameters affect indoor temperature through different parts of the building envelope, and the heating system influences the indoor condition through cooling equipment. These two influences result in indoor temperature fluctuation. It is necessary to clarify the lagging characteristics of the heating system
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