【摘要】 利用太阳能为建筑提供新风供暖负荷,难点之一是如何解决好太阳能变化不定、而建筑供暖需求连续稳定之间的矛盾。为此,根据所构建的太阳能-相变蓄热-新风供暖系统,以北京地区某办公建筑为具体案例,重点分析在北京冬季晴好天气条件下,针对太阳辐射强度不断变化的特点,结合所研制的相变蓄热材料的蓄放热特性以及自动控制技术,确保房间供给新风温度相对稳定条件下的系统运行控制策略及其控制条件。研究结果表明,所提出的系统运行控制策略可以确保房间新风送风温度控制在27.5～28.5℃,该运行控制策略对于其他天气条件也是适应的。更多还原

【Abstract】 The main problem to use solar energy resources for winter fresh air heating is how ensure the supply air temperature stable under unstable solar radiation.So the solar energy-phase change thermal storage-fresh air heating system is built to afford fresh air load in official building.In order to stabilize supply air temperature,operating strategy and operating conditions research based on charge/discharge characteristic of latent thermal storage and auto control technology is carried out in a sunny day in winter in Beijing.Experimental results indicate that the operating strategy is feasible.System supply air temperature can be controlled at 27.5~28.5℃.The operating strategy can also be used in other weather conditions.更多还原