Revitalizing Comfort: designing an Energy–Efficient HVAC System for the University Auditorium

Abdul Samad Khan; Muhammad Ehtesham ul Haque; Adeel Ahmed Khan; Syed Izhar ul haque; Syed Obaidullah; Muhammad Umer Khan

doi:10.36561/ING.26.2

Autores/as

Abdul Samad Khan NED University of Engineering and Technology, Pakistan https://orcid.org/0009-0005-5449-635X
Muhammad Ehtesham ul Haque NED University of Engineering and Technology, Pakistan https://orcid.org/0000-0001-8751-348X
Adeel Ahmed Khan NED University of Engineering and Technology, Pakistan https://orcid.org/0009-0004-6790-8176
Syed Izhar ul haque NED University of Engineering and Technology, Pakistan https://orcid.org/0009-0002-5693-5879
Syed Obaidullah NED University of Engineering and Technology, Pakistán https://orcid.org/0009-0000-0168-6196
Muhammad Umer Khan NED University of Engineering and Technology, Pakistán https://orcid.org/0009-0001-7173-6395

DOI:

https://doi.org/10.36561/ING.26.2

Palabras clave:

HVAC, Auditorio, Dimensionamiento de ductos, Carga de enfriamiento, Piping

Resumen

Hoy en día, el confort térmico se está convirtiendo en un gran problema para las personas debido al aumento del calentamiento global y los cambios climáticos, pero puede ser resuelto por el concepto de sistemas de Calefacción, Ventilación y Aire Acondicionado (HVAC). El objetivo de HVAC es proporcionar a los ocupantes una zona de confort para que puedan sentirse cómodos de acuerdo con su confort térmico. El objetivo central de este estudio es diseñar y proponer un sistema HVAC según las condiciones de diseño reales para el Auditorio Universitario ubicado en Karachi, Pakistán. En el Auditorio se encuentra instalado un sistema de Expansión Directa (Tipo DX) que ha superado la vida útil de veinte años, el refrigerante R-22 que se utiliza actualmente ha quedado obsoleto por su alto GWP (Global Warming Potential) y ODP (Ozone Depletion Potencial) valores que son 1810 y 0.05 respectivamente. Para lograr el objetivo de este estudio, se emplean dos enfoques. Método de diferencia de temperatura de carga de enfriamiento (CLTD) y software de programa de análisis por hora (HAP). La carga de refrigeración calculada a partir del método CLTD es de 202 kW equivalente a 57,5 Toneladas de Refrigeración (TR). Por otro lado, la carga de refrigeración calculada a partir del software HAP es de 192,8 kW equivalente a 55 TR. Al considerar la carga de enfriamiento calculada para el Auditorio Universitario, se proponen dos sistemas HVAC diferentes, basados en el ciclo de compresión de vapor enfriado por agua y enfriado por aire. Después de este estudio, los ingenieros podrán diseñar un sistema HVAC para cualquier instalación según las condiciones de diseño. Además, pueden proponer diferentes sistemas HVAC rentables y energéticamente eficientes para ese espacio en particular.

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