| 内容提要: |
Ground-water heat-pump system (GWHP) provides a high efficiency way for heating and cooling while consuming a little electrical energy. Due to the lack of scientific guidance for operating control strategy, the COP of system and units are at low levels. In this paper the running strategy of GWHP was studied. Firstly, groundwater thermal transfer calculation under the slow heat transfixion and the transient heat transfixion had been established by calculating on the heat transfer simulation software FlowHeat and using correction factor. Secondly, heating parameters were calculated on the basis of building heat load and terminal equipment characteristic equation. Then, the energy consumption calculation model for units and pumps were established. The optimization method and constraints were established on the basis of above models. At last, a field test on GWHP system in Beijing was carried out and the model was applied. The new system operation optimization idea for taking the every part of the GWHP into account that put
forward in this article has an important guiding significance to the actual
operation of underground water source heat pump. |