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A nodal model for displacement ventilation and chilled ceiling systems in office spaces.

Rees S J, Haves P, 2001
displacement ventilation | modelling | office building
Bibliographic info: Building and Environment, No 36, 2001, pp 753-762, 10 figs, 5 tabs, 13 refs.
Languages: English

Describes how a nodal model was developed intended to represent room heat transfer in displacement ventilation and chilled ceiling systems. Precalculated air flow rates were used to predict the air temperature distribution and the division of the cooling load between the ventilation air and the chilled ceiling. A network of ten air nodes is used to separately represent the air movements in the plumes and the rest of the room. Calculation of the capacity rate parameters is done by solving the heat and mass balance equations for each node using measured temperatures. Presents correlations between parameter values for a range of cooling loads and supply air flow rates.


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