Christian Ghiaus
Year:
2015
Bibliographic info:
Building Simulation, 2015, Hyderabad, India

An HVAC circuit is a collection of interconnected elements that can be modelled by interconnected blocks. Similar to electrical or hydraulic circuits analysis, we define the HVAC network analysis as the process of finding the temperatures and humidity ratios across, and the sensible and latent heat flow rates through every component in the network for a given mass flow rate of dry air. This implies formulating and solving a system of non-linear equations. The proposed solution is to linearize locally the vapour saturation curve and to decouple the sensible and the latent heat in order to obtain a system of linear equations. This steady-state psychrometric analysis is a computational alternative for the empirical usage of the psychrometric charts.