针对西北农村地区住宅建筑采暖季供暖问题,搭建太阳能-空气源热泵供暖系统（SASHP）。该系统以某西北农村住宅建筑为例,提出一种新型分区域分时段的柔性温度控制策略,并选取3个目标函数对供暖系统进行优化设计。结果表明,与“常用策略”相比,所提出的控制策略在整个供暖期平均温度为16.95 ℃,最高温度为18.87 ℃,太阳能保证率为25.11%,温度曲线更加柔和;生命周期成本优化方案具有更高的经济效益,目标建筑单位供热成本优化方案的静态回收期与单位供热成本最低,太阳能保证率优化方案的环境效益最高。研究结果为在不同目标下的供暖系统设计提供参考。
Abstract
To address heating challenges in rural residential buildings in Northwest China, a solar-air source heat pump （SASHP） heating system is being implemented. Using a specific rural residential building in Northwest China as an example, a novel flexible temperature control strategy based on sub-area and time-period segmentation is proposed, and the heating system is optimized using three objective functions. The results indicate that compared to the “constant temperature control strategy”, the proposed control method maintains an average temperature of 16.95 ℃ throughout the heating season, with a maximum temperature of 18.87 ℃ and a solar fraction of 25.11%, resulting in a smoother temperature curve. The life cycle cost optimization scheme yields greater economic benefits, while the target building unit heating cost optimization scheme achieves the shortest static payback period and lowest unit heating cost. Conversely, the solar fraction optimization scheme stands out for its superior environmental benefits. These findings offer valuable insights for the design of heating systems tailored to diverse objectives.
关键词
太阳能 /
供暖 /
优化 /
控制策略 /
TRNSYS /
节能
Key words
solar energy /
heating /
optimization /
control strategy /
TRNSYS /
energy saving
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基金
西部绿色建筑国家重点实验室自主研发项目（LSZZ202208）; 空调系统智慧调控技术“科学家+工程师”队伍（24KGDW0028）
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