Abstract

Given the current building and energy crisis and the continuing requirements of the EU in terms of reducing the emissions of gases and improving energy efficiency, the remodeling of existing buildings is of particular importance, considering that 40% of the energy is consumed in building sector. With respect to partially-open industrial buildings, air conditioning while refitting leads to increase productivity, for it improves outputs and maximize the working hours. Nevertheless, due to the resulting energy consumption increase, it seems necessary to clarify what would be the most efficient way of air conditioning this type of buildings, considering at the same time its economic viability. Therefore, the study presents an integrated approach to HVAC systems to identify the most adequate of them in the case of an existing workshop. The object of the study is a solar heating system, with a condensing gas boiler auxiliary power option. Air conditioning system also includes air curtains for environmental thermal control, displacement ventilation system, a dedicated outdoor air handling unit with evaporative indirect cooling and an optional mechanical cooling.