International Journal of Heat and Mass Transfer ( IF 5.2 ) Pub Date : 2021-06-16 , DOI: 10.1016/j.ijheatmasstransfer.2021.121550 Hadi Ramin , Easwaran N. Krishnan , A. Gurubalan , Wahab O. Alabi , Carey J. Simonson
Fixed-bed regenerators (FBRs) are energy recovery exchangers that can significantly reduce the energy required to condition outdoor ventilation air in HVAC systems. FBRs have high sensible effectiveness but produce an outlet air temperature that varies with time. In this paper, a numerical model is developed to evaluate the performance of FBRs, and more specifically, the transient nature of their operation. This transient nature poses difficulties for experimental testing; thus, the developed model consists of an exchanger (FBR) model and a sensor model to differentiate the actual exchanger performance from the performance that would be measured in an experiment. The developed numerical model is validated with experimental data and correlations from the literature. The numerical model is capable of capturing the transient behavior of FBRs and temperature sensors to accurately predict the measurement errors that can occur due to the transient response characteristics of FBRs and sensors at different operating conditions in HVAC applications.
中文翻译:
HVAC 应用中智能固定床再生器的瞬态数值模型
固定床再生器 (FBR) 是一种能量回收交换器,可显着降低 HVAC 系统中调节室外通风空气所需的能量。FBR 具有很高的显着效率,但会产生随时间变化的出口空气温度。在本文中,开发了一个数值模型来评估 FBR 的性能,更具体地说,是评估其运行的瞬态特性。这种瞬态性质给实验测试带来了困难。因此,开发的模型由交换器 (FBR) 模型和传感器模型组成,以区分实际的交换器性能与实验中测量的性能。开发的数值模型通过实验数据和文献中的相关性进行了验证。