Life Cycle Energy and Cost Analysis of Thin Flooring Panels with Enhanced Thermal Efficiency

Lee, Sungho; Joo, Jinkyu; Kim, Sunkuk

doi:10.3130/jaabe.14.167

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…Additionally, the higher thermal conductivity of the finishing material implies a greater influence of pipe spacing on heat flux. Lee et al [48] analysed the life cycle energy for two different finishing materials, finding that a thin flooring panel resulted in a 7.2% reduction in energy consumption compared to a conventional wooden floor panel for residential buildings. Cholewa et al [49] studied the effect on the thermal comfort of a room with RFS considering seven finishing material solutions.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Simulation of a Radiant Floor System: The Impact of Different Screed Mortars and Floor Finishings

et al. 2022

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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.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Simulation of a Radiant Floor System: The Impact of Different Screed Mortars and Floor Finishings

et al. 2022

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“…The LCC is the total cost of owning, operating, maintaining, and (eventually) disposing of the building structure during a given operating period (usually related to the life of the project [28]). Lee [29] included the installation cost at the construction stage, maintenance cost at the maintenance stage, and energy consumption during the operation stage in their life cycle energy and cost analysis. Na et al [30] used a computer simulation to determine the initial cost of each alternative, such as the construction cost of the air conditioning system, and calculated the energy cost as the operating cost based on the energy consumption of each system.…”

Section: Introductionmentioning

confidence: 99%

Comparative Economic and Experimental Assessment of Air Source Heat Pump and Gas-fired boiler: A Case Study from Turkey

Kul

Uğural

2022

Sustainability

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Since sustainability has become a major concern in the construction industry, making economically efficient investment decisions in energy conservation are needed to minimize energy consumption for space heating and cooling. Although Air-Source Heat Pump (ASHP) systems are used to meet buildings’ heating and cooling demands worldwide, high initial setup costs limit the widespread use of these systems. This paper presents comparative assessment of ASHP system versus conventional gas-fired boiler system for a real commercial building with a floor area of 2500 m2 in Istanbul, Turkey. The key performance variable, Coefficient of Performance (COP), of the ASHP system was experimentally evaluated. The experimental results revealed that the system's COP ranged from 3.22 to 4.32, while the outside temperature ranged from 4.8 to 18.6 °C and the supply water temperature ranged from 32.2 to 36.2 °C. Moreover, the economic analysis results showed that despite the high initial cost, ASHP systems are cost competitive against gas-fired boiler in Turkey. ASHP system could reduce the present value of total Life-Cycle Cost (LCC) by up to 26.4% (47,865 USD) compared to the conventional gas-fired boiler system because it can dramatically reduce the energy consumption per year.

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“…The reinforced concrete floor structure with radiant floor heating system (ONDOL) has been used conventionally for residential buildings in Korea [2,3]. This reinforced concrete (RC) floor structure consists of the reinforced concrete slab, the insulation layer with resilient materials, the radiant floor heating layer, the heat storage layer, and floor finishing materials.…”

Section: Introductionmentioning

confidence: 99%

“…Song [2] recommended that the floor finishing materials over the floor heating system in Korea should be chosen by the heat flux based on the heating load and should be thermophysiologically comfortable. Lee et al [3] published a study that the thin flooring panel with enhanced thermal efficiency in radiant floor heating system provided 7.2% energy reduction compared to the conventional wooden flooring panels in apartment housing. Liu et al [7] developed two-heat transfer model of the existing heat transfer process for in-slab heating floor.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Analysis of Reinforced Concrete Floor Structure with Radiant Floor Heating System in Apartment Housing

Jeong

Jung

2015

Advances in Materials Science and Engineering

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The use of the resilient materials in the radiant floor heating systems of reinforced concrete floor in apartment housing is closely related to the reduction of the floor impact sound and the heating energy loss. This study examined the thermal conductivity of expanded polystyrene (EPS) foam used for the resilient material in South Korea and analysed the thermal transfer of reinforced concrete floor structure according to the thermal conductivity of the resilient materials. 82 EPS specimens were used to measure the thermal conductivity. The measured apparent density of EPS resilient materials ranged between 9.5 and 63.0 kg/m3, and the thermal conductivity ranged between 0.030 and 0.046 W/(m·K). As the density of resilient materials made of expanded polystyrene foam increases, the thermal conductivity tends to proportionately decrease. To set up reasonable thermal insulation requirements for radiant heating floor systems, the thermal properties of floor structure according to thermal insulation materials must be determined. Heat transfer simulations were performed to analyze the surface temperature, heat loss, and heat flow of floor structure with radiant heating system. As the thermal conductivity of EPS resilient material increased 1.6 times, the heat loss was of 3.4% increase.

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Life Cycle Energy and Cost Analysis of Thin Flooring Panels with Enhanced Thermal Efficiency

Cited by 3 publications

References 10 publications

Experimental and Numerical Simulation of a Radiant Floor System: The Impact of Different Screed Mortars and Floor Finishings

Experimental and Numerical Simulation of a Radiant Floor System: The Impact of Different Screed Mortars and Floor Finishings

Comparative Economic and Experimental Assessment of Air Source Heat Pump and Gas-fired boiler: A Case Study from Turkey

Thermal Performance Analysis of Reinforced Concrete Floor Structure with Radiant Floor Heating System in Apartment Housing

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