Development and validation of a transient simulation model of a full-scale PCM embedded radiant chilled ceiling  

作　　者：Seyedmostafa Mousavi Behzad Rismanchi Stefan Brey Lu Aye 

机构地区：[1]Renewable Energy and Energy Efficiency Group,Department of Infrastructure Engineering,Faculty of Engineering and Information Technology(FEIT),The University of Melbourne,Melbourne,VIC,3010,Australia [2]InvAus Pty Ltd.,Melbourne,VIC,3000,Australia

出　　处：《Building Simulation》2023年第6期813-829,共17页建筑模拟（英文）

摘　　要：The recent significant rise in space cooling energy demand due to the massive use of air-conditioning systems has adversely changed buildings’energy use patterns globally.The updated energy technology perspectives highlight the need for innovative cooling systems to address this growing cooling demand.Phase change material embedded radiant chilled ceiling(PCM-RCC)has lately acquired popularity as they offer more efficient space cooling together with further demand-side flexibility.Recent advancements in PCM-RCC applications have increased the necessity for reliable simulation models to assist professionals in identifying improved designs and operating settings.In this study,a transient simulation model of PCM-RCC has been developed and validated using measured data in a full-scale test cabin equipped with newly developed PCM ceiling panels.This model,developed in the TRNSYS simulation studio,includes Type 399 that uses the Crank-Nicolson algorithm coupled with the enthalpy function to solve transient heat transfer in PCM ceiling panels.The developed model is validated in both free-running and active operation modes,and its quality is then evaluated using several validation metrics.The results obtained in multiple operating scenarios confirm that the model simulates the transient behaviour of the PCM-RCC system with an accuracy within±10%.Aided by this validated model,which offers the user detailed flexibilities in the system design and its associated operating schemas,PCM-RCC’s potentials regarding peak load shifting,energy savings,and enhanced thermal comfort can be investigated more reliably.

关 键 词：phase change material(PCM) radiant cooling ceiling panel modelling and simulation VALIDATION 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]