摘要
火炕是我国北方农村地区应用最广泛的建筑采暖方式,由于火炕搭建依靠农民经验,缺乏理论指导,常出现炕面温度过高等现象。因此,为有效改善炕体性能,需深入研究火炕系统传热流动模型。本文在总结火炕模型的建立途径的基础上,从微观与宏观的角度得到火炕传热流动模型包括计算流体力学模型和热平衡模型。分别介绍了各个模型的理论基础、模型假设、参数选取以及模型验证的研究现状,总结了目前存在问题并提出了下一步研究方向。
Kang is the most widely used construction heating mean in rural areas in northern China. Because kang built all rely on the experience of farmers and lack of theoretical guidance, the phenomenon such as back flow always appears. Therefore, in order to improve the performance of the kang body effectively, the heat and flow model for the kang should be studied deeply. The summary of the establishment method of the kang model showed that the heat and flow model of kang contained the computational fluid dynamics and heat balance model from the microcosmic and macroscopic. The research status of the theoretical basis system model, assumptions, parameters selection and the model validation of the kang system were introduced and the existing issues were summarized, which can provide the basis for the next research direction.
出处
《建筑热能通风空调》
2015年第6期31-36,63,共7页
Building Energy & Environment
基金
国家自然科学基金资助项目(No.51178074)
关键词
火炕
传热模型
计算流体力学
热平衡
kang, heat transfer model, computational fluid mechanics, heat balance
