用于冷却配备有所有空气系统的非住宅建筑的大量电能由通过热分配系统输送冷空气的风扇吸收。循环辐射冷却（RC）系统通过分离通风和热调节任务，有可能减少通过建筑物输送的空气量。由于水的物理性质，循环辐射冷却系统可以使用不到5%的其他必要风扇能量传输给定量的热能。仅此一项改进就能显著降低空调系统的能耗和峰值功率需求。循环辐射冷却系统在医院房间中已经使用了30多年，以提供一个通风良好、热稳定的环境。这些系统的节能和峰值负荷特性尚未得到系统分析。 此外，这些系统的设计和控制没有足够的指南。这阻碍了它们在其他建筑类型中的广泛应用。通过计算机模型可以最方便地对循环系统的理论性能进行评估。能源分析程序，如DOE-2，还没有能力模拟循环辐射系统。介绍了一种能够准确模拟循环辐射冷却系统动态性能的模型的开发过程。该模型可以计算负荷、吸热率、室内空气温度和室内表面温度分布，并可用于评估热舒适性、控制、系统尺寸、系统配置和动态响应等问题。该模型由国家实验室开发的模拟问题分析与研究内核（SPARK）创建，该内核为描述和求解与复杂物理系统相对应的动态非线性方程提供了一种方法。 关键词:1995年，计算，性能，辐射冷却，天花板冷却，水，节能，能耗，空调，峰值负荷，计算机程序，冷负荷，空气温度，室内，热流，温度分布，热舒适性，控制，尺寸，精度，比较引用:研讨会，ASHRAE Trans。1995年，第101卷，第2部分

A significant amount of the electrical energy used to cool non-residential buildings equipped with all-air systems is drawn by the fans that transport the cool air through the thermal distribution system. Hydronic radiant cooling (RC) systems have the potential to reduce the amount of air transported through the building by separating the tasks of ventilation and thermal conditioning. Because of the physical properties of water, hydronic radiant cooling systems can transport a given amount of thermal energy using less than 5% of the otherwise necessary fan energy. This improvement alone significantly reduces the energy consumption and peak power requirement of the air conditioning system. Hydronic radiant cooling systems have been used for more than 30 years in hospital rooms to provide a draught-free, thermally stable environment. The energy savings and peak-load characteristics of these systems have not yet been analysed systematically. Moreover, adequate guidelines for design and control of these systems do not exist. This has prevented their widespread application to other building types. The evaluation of the theoretical performance of hydronic systems could be made most conveniently by computer models. Energy analysis programs such as DOE-2 do not have the capability to simulate hydronic radiant systems yet. The development of a model that can accurately simulate the dynamic performance of hydronic radiant cooling systems is described. The model can calculate loads, heat extraction rates, room air temperature, and room surface temperature distributions, and can be used to evaluate issues such as thermal comfort, controls, system sizing, system configuration, and dynamic response. The model was created with the Simulation Problem Analysis and Research Kernel (SPARK), developed at a national laboratory, which provides a methodology for describing and solving the dynamic, nonlinear equations that correspond to complex physical systems.KEYWORDS: year 1995, calculating, performance, radiant cooling, ceiling cooling, water, energy conservation, energy consumption, air conditioning, peak load, computer programs, cooling load, air temperature, indoor, heat flow, temperature distribution, thermal comfort, controls, sizing, accuracy, comparing