Almeida Ricardo M S F, Vicente Romeu da Silva, Ventura-Gouveia António, Figueiredo António, Rebelo Filipe, Roque Eduardo, Ferreira Victor M
Department of Civil Engineering, Polytechnic Institute of Viseu, Campus Politécnico de Repeses, 3504-510 Viseu, Portugal.
CONSTRUCT-LFC, Faculty of Engineering (FEUP), University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal.
Materials (Basel). 2022 Jan 28;15(3):1015. doi: 10.3390/ma15031015.
The radiant floor system market is growing rapidly because Europe is moving toward a low-carbon economy and increased awareness about environmental sustainability and energy efficiency, stimulated by the ambitious EU Energy Efficient Directive and nZEB challenge. The high growth rate of the market share is due to the involvement of homeowners in the specifications of their living commodities, so they are thus willing to invest more at the initial stage to obtain long-term benefits and lower energy exploration costs. We performed an experimental campaign over three slabs with a hydronic radiant floor system of equal dimensions, shape, and pipe pitch with different screed mortar formulations to assess their performance throughout a heating/cooling cycle. The temperature at different heights within the interior of the screed mortars and at the surface were monitored. The results revealed that an improved screed mortar has a relevant impact on the efficiency of the system. Moreover, a three-dimensional transient heat transfer model was validated using the experimental data. The model was used to evaluate the impact of different finishing materials, namely wood, cork, ceramic, and linoleum, on the floor surface temperatures. The results showed differences of 15% in the surface temperature when using different floor finishing solutions.
辐射供暖地板系统市场正在迅速增长，因为欧洲正在朝着低碳经济迈进，并且在欧盟雄心勃勃的能源效率指令和近零能耗建筑（nZEB）挑战的刺激下，人们对环境可持续性和能源效率的认识有所提高。市场份额的高增长率归因于房主参与其生活商品的规格制定，因此他们愿意在初始阶段投入更多资金以获得长期利益并降低能源消耗成本。我们对三块尺寸、形状和管间距相同但找平砂浆配方不同的采用循环水辐射供暖地板系统的楼板进行了实验，以评估它们在整个加热/冷却周期中的性能。监测了找平砂浆内部不同高度处以及表面的温度。结果表明，改良的找平砂浆对系统效率有显著影响。此外，利用实验数据验证了三维瞬态传热模型。该模型用于评估不同饰面材料（即木材、软木、陶瓷和油毡）对地板表面温度的影响。结果表明，使用不同的地板饰面解决方案时，表面温度相差15%。
