Rediseño del sistema de ventilación y aire acondicionado de la unidad de cuidados intensivos, salas de parto y quirófanos del hospital Enrique Garcés

Abstract

Heating, ventilation and air conditioning system of the Enrique Garcés Hospital hasn´t presented any improvement, change or redesign in the last 20 years. Due to this problem the administration of the hospital has seen it essential to carry out a redesign of these systems in the critical area of the hospital (operating rooms, intensive care unit, farrowing´s room and newborn wards; located on the third, fourth

and fifth floors). For the redesign, we used the methodology provided by ASHRAE in its manual and applicable standards such as ANSI / ASHRAE 55 and ASHRAE 170.

The procedure begins with the calculation of the external thermal loads on walls, ceilings and windows by using the radiant series method (RTS) and then calculates the internal thermal loads due to the operation, lighting, equipment and ventilation. Calculating dimensions of the pipes thanks to the method is achieved by constant pressure loss.

Revit 2017 software's MEP (Mechanical, Electrical and Plumbing) tools are used to generate 3D models, ductwork system drawings, and pressure loss reports. A rooftop unit is selected for each analysis zone, where the cooling loads vary between 17, 11 and 33.35 [kW].