Open Access

ARTICLE

Determination of Effectiveness of Energy Management System in Buildings

Vivash Karki¹, Roseline Mostafa², Bhaskaran Gopalakrishnan^2,*, Derek R. Johnson³
1 University of Rochester, Rochester, NY, 14627, USA
2 Industrial and Management Systems Engineering, West Virginia University, Morgantown, WV, 26505, USA
3 Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV, 26505, USA
* Corresponding Author: Bhaskaran Gopalakrishnan. Email:

Energy Engineering 2023, 120(2), 561-586. https://doi.org/10.32604/ee.2023.025218

Received 28 June 2022; Accepted 05 September 2022; Issue published 29 November 2022

Abstract

Building Energy Management Systems (BEMS) are computer-based systems that aid in managing, controlling, and monitoring the building technical services and energy consumption by equipment used in the building. The effectiveness of BEMS is dependent upon numerous factors, among which the operational characteristics of the building and the BEMS control parameters also play an essential role. This research develops a user-driven simulation tool where users can input the building parameters and BEMS controls to determine the effectiveness of their BEMS. The simulation tool gives the user the flexibility to understand the potential energy savings by employing specific BEMS control and help in making intelligent decisions. The simulation is developed using Visual Basic Application (VBA) in Microsoft Excel, based on discrete-event Monte Carlo Simulation (MCS). The simulation works by initially calculating the energy required for space cooling and heating based on current building parameters input by the user in the model. Further, during the second simulation, the user selects all the BEMS controls and improved building envelope to determine the energy required for space cooling and heating during that case. The model compares the energy consumption from the first simulation and the second simulation. Then the simulation model will provide the rating of the effectiveness of BEMS on a continuous scale of 1 to 5 (1 being poor effectiveness and 5 being excellent effectiveness of BEMS). This work is intended to facilitate building owner/energy managers to analyze the building energy performance concerning the efficacy of their energy management system.

---

Graphical Abstract

---

Keywords

Buildings; energy management system; demand controlled ventilation; supply air temperature reset; temperature setback control; monte carlo simulation

---