As more advancements are made in renewable energy technologies and the shift is made away from fossil fuels, the demand on the power grid is going to change. The U.S. Department of Energy revealed that distributed power generation can reduce peak loads, raise power quality, and reduce/eliminate transmission losses. One distributed energy system with distinct advantages is a Solid Oxide Fuel Cell (SOFC) integrated with an Internal Combustion Engine (ICE) which has the capability to operate at high efficiencies while decreasing emissions. This novel system utilizes the anode tail-gas from the SOFC to power the ICE which optimizes power generation and can produce electrical efficiencies upwards of 70%. This research aims to produce and test a high efficiency air delivery system that supports the SOFC-ICE to generate power on the scale of 80 kW at an electrical efficiency of ≥70%. The air balance of plant (BOP) system utilizes low speed scroll-type rotating compressors implemented along with brazed plate and frame heat exchangers for cost effective preheating. The air BOP system was modeled with thermodynamic and heat transfer equations and testing was done on the compressors and heat exchangers to validate the model so that the air BOP system performance can be accurately predicted within a range of conditions. The validated model was then used to make predictions about system performance at on and off-design conditions.