Untersuchungen über schnell wechselnde electrische Ströme

Oberbeck, A.

doi:10.1002/andp.18792420202

“…The governing equations were derived using conservation of mass, momentum and energy. Two outstanding and significant early studies were the analytical studies of Oberbeck [14] and Lorenze [15]. They attempted to solve the continuity, momentum and energy equations for a vertical isothermal surface assuming laminar and steady state conditions.…”

Section: Studies Of Laminar Natural Convection From An Isothermal Platementioning

confidence: 99%

A Simplified Technique for Thermal Analysis of a Fenestration system with a Venetian Blind

Shahid¹

2021

Preprint

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A simplified 1-D numerical model of a window and horizontal Venetian blind assembly has been developed. This model provides a realistic estimate of the advantage of using blinds to control the window heat gain or loss. The free convective heat transfer rate from an isothermal vertical surface adjacent to a set of horizontal louvres has been studied numerically. This configuration is an approximate model of an indoor window glazing with a Venetian-type blind. Knowledge of the effect of blinds on the free convection at the indoor window surface is important for understanding and predicting the impact of shading devices on the overall thermal performance of a window. The convective heat transfer results are used in the one-dimensional model of the complete fenestration system to study the effect on key performance parameters. The results show that louvred blinds can have a significant beneficial effect on window thermal performance.

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“…The governing equations were derived using conservation of mass, momentum and energy. Two outstanding and significant early studies were the analytical studies of Oberbeck [14] and Lorenze [15]. They attempted to solve the continuity, momentum and energy equations for a vertical isothermal surface assuming laminar and steady state conditions.…”

Section: Studies Of Laminar Natural Convection From An Isothermal Platementioning

confidence: 99%

A Simplified Technique for Thermal Analysis of a Fenestration system with a Venetian Blind

Shahid¹

2021

Preprint

0

View full text Add to dashboard Cite

A simplified 1-D numerical model of a window and horizontal Venetian blind assembly has been developed. This model provides a realistic estimate of the advantage of using blinds to control the window heat gain or loss. The free convective heat transfer rate from an isothermal vertical surface adjacent to a set of horizontal louvres has been studied numerically. This configuration is an approximate model of an indoor window glazing with a Venetian-type blind. Knowledge of the effect of blinds on the free convection at the indoor window surface is important for understanding and predicting the impact of shading devices on the overall thermal performance of a window. The convective heat transfer results are used in the one-dimensional model of the complete fenestration system to study the effect on key performance parameters. The results show that louvred blinds can have a significant beneficial effect on window thermal performance.

show abstract