Method and device for optimizing distance between building ground radiant heating coils of net zero-energy-consumption building

Abstract

The invention provides a method and device for optimizing the distance between ground radiant heating coils of a net zero-energy-consumption building. The method comprises the steps that (1) acquiring basic information parameters of the net zero-energy-consumption building; (2) establishing a model of the the net zero-energy-consumption building; (3) carrying out annual energy consumption data calculation on the the net zero-energy-consumption building; (4) selecting the model of each module of the energy system; (5) changing the distance between geothermal coil pipes in the building model; (6) acquiring indoor temperature and energy system performance parameters under different coil pipe intervals; (7) selecting the distance between the geothermal coil pipes according to the thermal comfort condition, the system energy efficiency condition and the user requirement; and (8) obtaining the optimal intervals of the heating coils at the tail ends of the net zero-energy-consumption building during ground radiation. Technicality and user thermal comfort are considered, load data of the net zero-energy-consumption building, energy system operation effect data and indoor environment thermal comfort data can be rapidly and accurately obtained, the proper geothermal coil pipe distance is selected for the net zero-energy-consumption building, and the invention is wide in application prospect, simple and feasible.

Description

technical field [0001] The invention relates to the technical field of HVAC terminal systems, in particular to a method and device for optimizing the spacing of ground radiant heating coils in a net-zero-energy building. Background technique [0002] With the improvement of residents' material living standards, people yearn for a comfortable, healthy, ecological and energy-saving lifestyle. At present, the radiant floor heating system is more and more popular in engineering because of its advantages such as low water supply temperature and good thermal comfort. The calculation of ground radiant heating is mainly to determine the calculation of the heating tube spacing. In the traditional building construction design, the ground radiant heating project should be designed by HVAC design professionals in accordance with the current national norms and technical measures in accordance with normal procedures. According to the experience table, the optimal spacing of the heating ...

AI Technical Summary

Problems solved by technology

[0003] However, due to the load characteristics of net zero energy buildings, the heat transfer coefficient of the envelope structure is much lower than that of ordinary buildings, and the airtightness is better. Coupled with the use of a series of energy-saving technologies, the unit floor area of ​​net zero energy buildings The required effective heat dissipation is extremely low, which is beyond the scope of the empirical table, and the current norms for ordinary buildings are no longer applicable to net zero energy buildings

During design and construction, if the geothermal coil spacing is directly selected according to experience, it will inevitably lead to a series of consequences such as high indoor temperature in winter, poor thermal comfort, low energy efficiency of the energy system, and no energy saving.

Images