Design and analytical investigation on air-to-air cross flow heat exchanger of an industrial heat recovery ventilation system

Energy consumption based on the building heating, ventilation, and air-conditioning (HVAC) systems is sharply rising daily. At this point, heat recovery ventilation save energy while contributing to indoor air quality thermal comfort. This work mainly focuses designing air-to-air cross-flow exchanger system duct lines. First, ducts, bends, vents, unit are placed around selected domain complying with ASHRAE 55 62.1 standards. The requirements temperature levels of cold hot streams, flow rates, number velocity at supply vent outlets considered. Then, calculations conducted for determine layers, transfer surface areas, regime, rate. Thermal recuperator initially performed by effectiveness-number (ϵ-NTU) method as outlet temperatures not known beginning design. In addition, findings compared validated via logarithmic mean difference methodology. results show that fresh can increase from 5 °C 13.32 when exhaust 26 in winter. Furthermore, rate analytically calculated 1806.7 W 1807.5 ϵ-NTU (LMTD) methods, respectively.