Diseño de un sistema centralizado de calefacción para el Parque Industrial “El Obraje” ubicado en la ciudad de Machachi.

Abstract

The study aimed at the design and simulation of a District heating system (DHS) for the Industrial Park "El Obraje" in the city of Machachi. Two systems based on heat pump were designed: the first with a ground source (GSHP) and the second with an air source (ASHP). Thermal loads, design and simulation were developed and carried out in the TRNSYS software, which allows simulating energetic systems in a transient state. From the results obtained, an energetic, exergetic and economic comparison was made between both systems to determine which one represents a better option for the conditioning of the spaces studied. In terms of energy, both systems satisfied the demand of the buildings. However, the ASHP system has a greater power consumption than the GSHP, which represents a lower seasonal performance factor (SPF). An analysis of the coefficient of exergetic performance (COP) was carried out, where the difference between the GSHP and ASHP systems was 4%. On the other hand, the economic analysis considered the installation and operation costs, where the GSHP system has an investment 4 times greater than the ASHP system. Nevertheless, in terms of operating costs, the ASHP system is twice as expensive as the GSHP system, which means that, over the useful life of the system, the GSHP system is cheaper than the ASHP system. These points taken together, the GSHP system was determined to have a greater advantage for this project.