基于多能互补的内蒙古西部超低能耗草原民居供暖系统综合效果评价

Comprehensive Effect Evaluation of Ultra-low Energy Grassland Folk Houses Heating System Based on Multi-energy Complementary in Western Inner Mongolia

内蒙古西部草原民居现有供暖系统存在着能耗高、热舒适度差、环境污染严重等问题。为评价太阳能、风能及传统供暖方式组成的多能互补供暖系统的综合效果,通过实地调研,得出内蒙古西部草原民居基础模型,之后利用数值模拟方法构建传统供暖系统与多能互补供暖系统,并在典型气象条件下进行模拟计算。结果表明:多能互补供暖系统较传统供暖系统年采暖能耗需求量降低了11096.63 kW·h,年采暖能耗降低率为66.18%,非清洁能源使用量减少了2.33吨原煤;客厅和主次卧的最冷月室内日平均温度明显提高,且热稳定性更好;年运行费用降低额大于年均摊成本支出费用。研究结果为草原民居结合实地情况设计建造多能互补供暖系统提供了参考。

The existing heating system of grassland dwellings in western Inner Mongolia has many problems,such as high energy consumption,poor thermal comfort and serious environmental pollution.To evaluate the solar energy,wind energy and the comprehensive effect of multi-energy complementary heating system composed of traditional heating mode,through on-the-spot investigation,the basic model of grassland dwellings in western Inner Mongolia is obtained.After that,the traditional heating system and the multi-energy complementary heating system are constructed by using the numerical simulation method,and the simulation calculation is carried out under the typical meteorological conditions.The results show that:compared with the traditional heating system,the annual heating energy demand of the multi-energy complementary heating system has decreased by 11096.63 kw·h,the annual heating energy consumption has decreased by 66.18%,and the non-clean energy consumption has reduced by 2.33 tons of raw coal.The average daily temperature of the coldest month in the living room and the primary and secondary bedroom has significantly improved,and the thermal stability is better.The annual operating cost reduction is greater than the annual average cost expenditure.The research results provide a reference for the design and construction of multi-energy complementary heating system for grassland dwellings based on the actual situation.