Integrated analysis of the energy and economic efficiency of PCM as an indoor decoration element: Application to an apartment building

Yun, Beom Yeol; Park, Ji Hun; Yang, Sungwoong; Wi, Seunghwan; Kim, Sumin

doi:10.1016/j.solener.2019.12.006

Cited by 57 publications

(14 citation statements)

References 49 publications

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“…Results have underlined a significant energy saving in buildings integrated with PCMs [31]. PCM integration in buildings was also modelled and simulated in terms of energy demands, by Yun et al [32]. Results have indicated a reduction in cooling cost by 7.48%, while a six years' payback period was estimated.…”

Section: Introductionmentioning

confidence: 86%

Thermal Behaviour Analysis and Cost‐Saving Opportunities of PCM‐Integrated Terracotta Brick Buildings

Arumugam

Shaik

Ghosh

et al. 2021

Advances in Civil Engineering

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Buildings contribute greatly to global energy use and consumption. The energy consumption of buildings is significant due to the integration of heating, ventilation, and cooling systems. Evidently, the utilization of phase change materials (PCMs) in building design can adequately reduce air-conditioning costs of buildings by diminishing external heat gains and losses. Moreover, the adoption of natural, eco-friendly, and cost-effective materials, such as terracotta bricks, can be valuable from an environmental point of view. This paper intends to assess the air-conditioning cost-saving potential of several PCM stuffed terracotta brick configurations. In that respect, the encapsulated PCMs were filled in the hollows of terracotta bricks. For the aims of this study, five different types of PCMs were considered, in relation to the thermophysical properties of their solid and liquid state (OM18: organic mixture, HS22: hydrated salt, OM29, OM32, and OM37). In addition, three PCM-stuffed terracotta brick configurations were examined with reference to the number of the PCM layers (PCMTB-A with one PCM layer, PCMTB-B with two PCM layers, and PCMTB-C with three PCM layers). Therefore, fifteen PCM-stuffed terracotta brick configurations were analysed numerically, related to environmental conditions that refer to two different scenarios in India (hot dry and composite climates). Results have unveiled that the OM32 PCM assemblies have shown better thermoeconomic performance compared to the other types of PCM. With respect to the most advantageous number of PCM layers, the evidence of this analysis has exposed that the PCMTB-C case has shown the highest annual air-conditioning cost-savings and the highest yearly carbon emission mitigations in both climates (Ahmedabad and Lucknow). In hot-dry climates, the PCMTB-C with OM32 PCM exhibited the highest annual air-conditioning cost-saving ($ 74.7), the highest annual carbon emission mitigation (1.43 ton/kWh), and the moderate payback period (22.5 years) compared to the other cases. To conclude, the findings of this study suggest a suitable way to improve the decision-making process of building design, while bridging the performance gap in terms of energy efficiency and sustainability.

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Section: Introductionmentioning

confidence: 86%

Thermal Behaviour Analysis and Cost‐Saving Opportunities of PCM‐Integrated Terracotta Brick Buildings

Arumugam

Shaik

Ghosh

et al. 2021

Advances in Civil Engineering

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“…Detailed HVAC system simulations are carried out to assess the effect of high efficiency heat pumps with inverterdriven compressors and advanced control on the building's energy performance. They can be based on software with standard modules, like the DOE-2 [36], or EnergyPlus [37], or on transient simulations [38][39][40][41]. As demonstrated in [42,43], detailed HVAC system simulations enable realistic prediction of a house's heating and cooling energy consumption by use of efficient heat pumps.…”

Section: Methodsmentioning

confidence: 99%

“…Ceiling height is 3 m. The house is located in Volos, a coastal port city in Greece, with latitude 39 • :21 , longitude 22 • :56 . The climate of the site is warm and temperate, with average monthly temperatures ranging between 8-10 • C during winter and 25-28 • C summer and about 500 mm annual precipitation [37]. It is a single-family, detached house with a level roof with 2 m overhangs at the northern and southern sides.…”

Section: Methodsmentioning

confidence: 99%

Energy Performance Optimization of a House with Grid-Connected Rooftop PV Installation and Air Source Heat Pump

2021

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The use of air source heat pump systems for space heating and cooling is a convenient retrofitting strategy for reducing building energy costs. This can be combined with the rooftop installation of photovoltaic panels, which can cover, to a significant degree—or even significantly exceed the building’s electricity needs, moving towards the zero energy building concept. Alternatively, increased capacity for rooftop photovoltaic (PV) installation may support the ongoing process of transforming the Greek power system away from the reliance on fossil fuels to potentially become one of the leaders of the energy transition in Europe by 2030. Standard building energy simulation tools allow good assessment of the Heating, Ventilation and Air Conditioning (HVAC) and PV systems’ interactions in transient operation. Further, their use enables the rational sizing and selection of the type of panels type for the rooftop PV installation to maximize the return on investment. The annual performance of a three-zone residential building in Volos, Greece, with an air-to-water heat pump HVAC system and a rooftop PV installation, are simulated in a TRNSYS environment. The simulation results are employed to assess the expected building energy performance with a high performance, inverter driven heat pump with scroll compressor and high efficiency rooftop PV panels. Further, the objective functions are developed for the optimization of the installed PV panels’ area and tilt angle, based on alternative electricity pricing and subsidies. The methodology presented can be adapted to optimize system design parameters for variable electricity tariffs and improve net metering policies.

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“…The advantages of adopting techniques such as these presented earlier are influential with regards to actively reducing energy consumption, despite the variation in estimating the degree of possible energy savings ranging from 20% to 50.8%. [51][52][53][54][55][56][57][58]. Despite the aforementioned promising attributes in the literature presented above, critically examining the methods used to utilize PCMs, it can be seen that techniques that are of high complexity are required, such as micro-encapsulation for instance.…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal performance of closed-cell rigid Polyurethane (PU) foam panels using phase change materials (PCMs)

Mohammed¹,

Elnokaly

Aly

et al. 2022

Journal of Advanced Engineering Trends

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The consequences of extreme energy consumption are seen both in the energy and environmental crisis. Subsequently, researchers are attempting to find methods to address this issue. Building envelopes and insulation materials are elements that can effectively influence consumption through their passive effect on thermal comfort levels. Strategies pertaining to this that rely on both, advanced and traditional materials, have been able to show good potential. However, the technical complexity of using such strategies can be impeded from the perspective of developing countries. With the aim of creating effective low-cost feasible insulations through using methods of minimal intricacies, the potentials of simple amalgamation of materials is empirically investigated in this study. In this context, closed-cell rigid Polyurethane (PU) foam is used as a base to hold phase change materials (PCMs) to create two PU/PCM panels, of different PCM content. The thermal performance of the panels is experimentally examined and compared, with hot-arid climates prevailing in developing countries in mind. Results revealed that panels containing PCMs were able to perform more effectively in comparison with regular PU foam panels, and, that increasing the amount of PCM has also shown to be advantageous in this regard.

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Integrated analysis of the energy and economic efficiency of PCM as an indoor decoration element: Application to an apartment building

Cited by 57 publications

References 49 publications

Thermal Behaviour Analysis and Cost‐Saving Opportunities of PCM‐Integrated Terracotta Brick Buildings

Thermal Behaviour Analysis and Cost‐Saving Opportunities of PCM‐Integrated Terracotta Brick Buildings

Energy Performance Optimization of a House with Grid-Connected Rooftop PV Installation and Air Source Heat Pump

Enhanced thermal performance of closed-cell rigid Polyurethane (PU) foam panels using phase change materials (PCMs)

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