Conference article

Energy Efficient Design for Hotels in the Tropical Climate using Modelica

Reymundo Miranda
Department of Civil, Architectural and Environmental Engineering, University of Miami, Coral Gables, Florida / UCI Engineering, Miami, Florida, USA

Sen Huang
Department of Civil, Architectural and Environmental Engineering, University of Miami, Coral Gables, Florida, USA

German Barrios
Department of Civil, Architectural and Environmental Engineering, University of Miami, Coral Gables, Florida, USA

Dan Li
Department of Civil, Architectural and Environmental Engineering, University of Miami, Coral Gables, Florida, USA

Wangda Zuo
Department of Civil, Architectural and Environmental Engineering, University of Miami, Coral Gables, Florida, USA

Download articlehttp://dx.doi.org/10.3384/ecp1511871

Published in: Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Linköping Electronic Conference Proceedings 118:7, s. 71-78

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Published: 2015-09-18

ISBN: 978-91-7685-955-1

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

For hotels located in the tropical climate, a significant amount of energy is attributed to the space cooling and the domestic hot water (DHW) usage. To improve the energy efficiency of hotels in the tropical climate, we proposed a heat recovery system that could utilize the waste heat from the space cooling to preheat the city water supplied to the DHW system . To support the system design, we selected Modelica to model the heat recovery system and its control, which is difficult to be simulated by conventional building simulation tools. The Modelica Buildings library and the Modelica_StateGraph2 library were employed to build the system model. A hotel in Miami, USA, was selected for the case study. The simulation results showed that the proposed heat recovery system could save up to around 30% boiler energy use in the DHW system.

Keywords

energy efficient design; hotel; tropical climate; Modelica

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