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Abstract

The aim of this research was to model the performances of energy and exergy on a Trombe wall system to enable an adequate thermal comfort. The main equations for the heat transfer mechanisms were developed from energy balances on subcomponents of the Trombe wall with the specification of the applicable initial and boundary conditions. During the incorporation of the PCM on the Trombe wall, the micro-encapsulation approach was adopted for better energy conservation and elimination of leakage for several cycling of the PCM. The charging and discharging of the PCM were equally accommodated and incorporated in the simulation program. The results of the study show that an enhanced energy storage could be achieved from solar radiation using PCM-augmented system to achieve thermal comfort in building envelope. In addition, the results correspond with those obtained from comparative studies of concrete-based and fired-brick augmented PCM Trombe wall systems, even though a higher insolation was used in the previous study.
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Bibliography

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[11] F. Abbassi and L. Dehmani. Experimental and numerical study on thermal performance of an unvented Trombe wall associated with internal thermal fins. Energy and Buildings, 105:119–128, 2015. doi: 10.1016/j.enbuild.2015.07.042.
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[13] S.A. Ajah, B.O. Ezurike, and H.O. Njoku. A comparative study of energy and exergy performances of a PCM-augmented cement and fired-brick Trombe wall systems. International Journal of Ambient Energy, 1–18, 2020. doi: 10.1080/01430750.2020.1718753.
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Authors and Affiliations

Benjamin O. Ezurike
1
ORCID: ORCID
Stephen A. Ajah
1
ORCID: ORCID
Uchenna Nwokenkwo
1
ORCID: ORCID
Chukwunenye A. Okoronkwo
1
ORCID: ORCID

  1. Department of Mechanical/Mechatronics Engineering, Alex Ekwueme Federal University Ndufu-Alike, Nigeria
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Abstract

The proposed Trombe wall design is an innovative and effective solution for addressing issues related to building energy efficiency. The Trombe wall can help reduce a building’s energy consumption, provide optimal indoor temperature, and minimize the building’s environmental impact by utilizing renewable energy sources.The article deals with the study of the heat-air characteristics of the Trombe Wall, which performs the functions of external protection of a modular house, with the aim of further evaluating the possibility of using it as a hybrid protection with additional heating and ventilation functions assigned to it. The results of experimental research conducted on one of the elements of external protection of a modular house in the form of the Trombe Wall are presented. The experimentally obtained graphic dependences were compared with the calculated data and the convergence was evaluated. The proposed design allows you to organize air exchange in the premises with a multiplicity within 1–1.5 h -1, and also provides an opportunity to provide additional thermal power in the amount of 250 W/m 2. The article presents the results of experimental studies that allow to evaluate the thermal characteristics of the proposed design of external protection for a modular house. These results indicate that with the given geometric dimensions, in particular with a volume of 14 m 3, the thermal power utilized by the Trombe wall is within 0.2–0.7 kW
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Authors and Affiliations

Vasyl Zhelykh
1
ORCID: ORCID
Małgorzata Ulewicz
1
ORCID: ORCID
Yurii Furdas
2
ORCID: ORCID
Volodymyr Shepitchak
3
ORCID: ORCID

  1. Czestochowa University of Technology, Faculty of Civil Engineering, Dabrowskiego 69, 42-201 Czestochowa, Poland
  2. Lviv Polyechnic National University, Department of Heat and Gas Supply and Ventilation 79013 Lviv, Ukraine
  3. Lviv Polyechnic National University, Department of Heat Engineering and Thermal and Nuclear Power Plants, 79013 Lviv, Ukraine

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