The DEROB System configuration is described, using as an example the simulation of the Bruce Hunn Residence in Los Alamos, NM. DEROB is a system of computer programs developed originally as a research and teaching tool. Eight validation studies have been successfully completed. In addition to the results reported in this article, DEROB has been successfully validated against data collected in a full-scale hybrid residence (Conference on System Simulation and Economic Analysis for Solar Heating and Cooling, San Diego, CA, June, 1978), as well as test rooms built by the Los Alamos Scientific Laboratories (LASL), (Proceedings of the 3rd National Passive Solar Conference, San Jose, CA, January, 1979). The results presented here are part of the ongoing effort to validate the accuracy of the DEROB System using different buildings and passive systems configurations for which reliable data are available.

The Bruce Hunn Residence is a medium sized home of approximately 214 m2 which is equipped with a Trombe wall system. Using energy performance data supplied by the Los Alamos Scientific Laboratory (LASL), this simulation includes illustrations of the interactive data input by a DEROB peripheral program as well as the results obtained by intermediate steps of the simulation, including a basic description of the relevant algorithms.