Performance of Radiant Heating Systems of Low-Energy Buildings

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Sarbu, Ioan^1 ; Mirza, Matei^1 ; Crasmareanu, Emanuel^1

Department of Building Services Engineering, Polytechnic University of Timisoara, Piata Victoriei, no. 2A, Timisoara

300006, Romania^1

关键词: Air distribution systems;    Comparative analysis;    Economic performance;    Heating and cooling systems;    Low energy buildings;    Low temperature heating;    Radiant heating systems;    Transient systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/3/032088/pdf
DOI  :  10.1088/1757-899X/245/3/032088

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

After the introduction of plastic piping, the application of water-based radiant heating with pipes embedded in room surfaces (i.e., floors, walls, and ceilings), has significantly increased worldwide. Additionally, interest and growth in radiant heating and cooling systems have increased in recent years because they have been demonstrated to be energy efficient in comparison to all-air distribution systems. This paper briefly describes the heat distribution systems in buildings, focusing on the radiant panels (floor, wall, ceiling, and floor-ceiling). Main objective of this study is the performance investigation of different types of low-temperature heating systems with different methods. Additionally, a comparative analysis of the energy, environmental, and economic performances of floor, wall, ceiling, and floor-ceiling heating using numerical simulation with Transient Systems Simulation (TRNSYS) software is performed. This study showed that the floor-ceiling heating system has the best performance in terms of the lowest energy consumption, operation cost, CO2emission, and the nominal boiler power. The comparison of the room operative air temperatures and the set-point operative air temperature indicates also that all radiant panel systems provide satisfactory results without significant deviations.