Passive Solar Heating Research

Balcomb, J.D.

doi:10.1007/978-1-4684-8992-7_10

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…Some CABS are specifically designed to take advantage of this fixed 24 hour pattern. Examples are the adaptable thermal storage in solar barrel wall [71], and the nocturnal release of thermal energy via roof ponds with moveable insulation [72].…”

Section: Time-scalesmentioning

confidence: 99%

Climate adaptive building shells: State-of-the-art and future challenges

Loonen

Trcka

Cóstola

et al. 2013

Renewable and Sustainable Energy Reviews

519

270

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Section: Time-scalesmentioning

confidence: 99%

Climate adaptive building shells: State-of-the-art and future challenges

Loonen

Trcka

Cóstola

et al. 2013

Renewable and Sustainable Energy Reviews

519

270

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“…To optimize the cross-section of the solar collector, the Barley and Balcombe method is used [37]. In this way, the SF is calculated first.…”

Section: Resultsmentioning

confidence: 99%

Reducing Energy Consumption in a Poultry Farm by Designing and Optimizing the Solar Heating/Photovoltaic System

et al. 2023

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A solar heating system is designed to reduce energy consumption in a poultry farm. According to the physics and conditions of the indoor environment of the poultry building and the effect of the poultry weather conditions, the amount of 1.37 × 108 kJ/h during the year energy is required for heating. Then, by using double-glazed windows and insulation for the exterior walls of the building in the building architecture section, the amount of energy consumption is drastically reduced, and the required annual gas consumption is equal to 11,833 m3. The surface required for the collector is recommended to supply 50% of the energy from the sun with the rest from the hybrid system. The results showed that 26 m2 of a solar collector with an optimal slope of 45 degrees, and a tank volume of 440 L and a pump discharge of 1700 kg/h are required to provide 100% of energy. To receive the maximum amount of solar energy (maximum solar fraction (SF)), a collector surface equal to 30 m2 is required. However, when the economic point of view is considered, the collector surface equivalent to 26 m2 is recommended. To establish a balance, that is, 50% of the energy from the auxiliary system and the rest from the solar system, between the use of solar energy and the use of the auxiliary system, a collector area of 16 m2 is needed. Based on this, 60 photovoltaic modules, which are 10 cells in series in 6 parallel circuits, is the most optimal mode.

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“…The SLR method was developed by Balcomb [40] and it is generalizable for every passive system installed in buildings. The Balcomb theory, derived from experimental analysis, uses the SLR concept calculated by a series of empirical correlations to determine the SSF (solar saving fraction), namely the share of the heating demand covered by the solar source, by a correlation employing three constant values that currently are listed in proper tables, but only for traditional Trombe walls.…”

Section: The Slr Methodsmentioning

confidence: 99%

A Calibration of the Solar Load Ratio Method to Determine the Heat Gain in PV-Trombe Walls

et al. 2022

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The Trombe wall is a passive system used in buildings that indirectly transfers thermal energy to the adjacent environment by radiation and convection, and directly by the thermo-circulation that arises in the air cavity delimited between a transparent and an absorbing surface. Nevertheless, the latter is painted black to increase the energy gains, but this produces a negative visual impact and promotes the overheating risk in summer. To mitigate these aspects, a hybrid Trombe wall equipped with PV panels can be employed. The PV installation results in a more pleasing wall appearance and the overheating risk reduces because part of the absorbed solar radiation is transformed into electricity. To determine the actual performance of a such system, transient simulation tools are required to consider properly the wall thermal storage features, variation of the optical properties, air thermo-circulation, and PV power production. Alternatively, regarding the traditional Trombe wall, the literature provides a simplified empirical method based on the dimensionless parameter solar load ratio (SLR) that allows for preliminary evaluations and design. In this paper, the SLR method was calibrated to determine the monthly auxiliary energy to be supplied in buildings equipped with PV-Trombe walls in heating applications. The SLR method was tuned by a multiple linear regression by data provided by TRNSYS simulation that allowed to obtain the energy performances in actual conditions of PV-Trombe walls installed on the same building but located in different localities. The comparison between the TRNSYS results and the calibrated SLR method determined average errors ranging between 0.7% and 1.4%, demonstrating the validity of the proposed methodology.

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Passive Solar Heating Research

Cited by 8 publications

References 4 publications

Climate adaptive building shells: State-of-the-art and future challenges

Climate adaptive building shells: State-of-the-art and future challenges

Reducing Energy Consumption in a Poultry Farm by Designing and Optimizing the Solar Heating/Photovoltaic System

A Calibration of the Solar Load Ratio Method to Determine the Heat Gain in PV-Trombe Walls

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