Current HVAC system simulation software is sufficiently accurate and flexible to be of use in system design. Its integration into the design process is hindered, however, by the need for extensive analysis of the simulation output and by difficulties in taking action to correct system performance if this is initially poor. The first section of this paper gives an overview of the use of intelligent knowledge-based software in the automatic analysis and correction of the simulated performance of HVAC systems. The second section describes an implementation for the steady-state simulation of a proportionally controlled cooling coil.

KEYWORDS: building services, heating, ventilation, air conditioning, computer programs, computers, designing, automatic, calculating, performance, cooler batteries, expert systems, steady state.