A new modeling procedure for circuit design and performance prediction of evaporator coils using CO2 as refrigerant

Further study on the heat exchanger circuitry arrangement for an active chilled beam terminal unit

“…Taking above equations of control volumes and their constraints together as a whole, it is actually difficult to develop an effective algorithm to solve those coupled nonlinear equations in a short time. Conventional finite difference method [29][30][31][32][33] is still time-consuming even if some methods are used to decouple the equations and relax the nonlinearities, particularly in the case of a large number of control volumes. By contrast, the particle swarm optimization is used here, which is faster and more robust to initial values.…”

Numerical Modeling and Experimentation on Evaporator Coils for Refrigeration in Dry and Frosting Operational Conditions

“…Two different solution procedures were developed in the modeling process: Forward Marching Technique (FMT) (Ouzzane & Aidoun, 2004) and Iterative Solution for Whole System (ISWS) (Bendaoud et al, 2010). The Forward Marching Technique allowed local tracking of relevant operational parameters.…”