Energy use assessment of educational buildings: Toward a campus-wide sustainable energy policy

Agdas, Duzgun; Srinivasan, Ravi S.; Frost, K.; Masters, Forrest J.

doi:10.1016/j.scs.2015.03.001

Cited by 55 publications

(44 citation statements)

References 9 publications

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“…In Europe, 39% of the total primary energy is consumed by buildings, among which 26% is for residential houses and 13% for commercial architectures [3]. In China, the building industry accounts for 25-30% of the total national primary energy [4], while in the USA buildings represent 40% of the total national energy consumption and 40% of CO 2 emissions [5]. A similar situation happens in Australia, where the building industry consumes…”

Section: Introductionmentioning

confidence: 92%

“…Solar collector area (m 2 ) B [1][2][3][4][5][6][7][8] Temperature equation coefficients for the desiccant wheel C [1][2][3][4][5][6][7][8] Humidity Regeneration inlet air humidity ratio (kg/kg) RWO Regeneration outlet air humidity ratio (kg/kg) RTI Regeneration inlet air dry-bulb temperature ( • C) RTO Regeneration outlet air dry-bulb temperature ( • C) SF Solar fraction t [1][2][3][4][5][6][7][8][9] Dry bulb temperature of the air at each point in Figure 1 ( • C) w [1][2][3][4][5][6][7][8][9] Humidity ratio of the air at each point in Figure 1 ∆OC Operating cost differences between the referenced conventional VAV system and the proposed solar system alternatives ($)…”

Section: A Cmentioning

confidence: 99%

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Comparison of Different Solar-Assisted Air Conditioning Systems for Australian Office Buildings

Saha

Miller

et al. 2017

Energies

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Abstract:This study has investigated the feasibility of three different solar-assisted air conditioning systems for typical medium-sized office buildings in all eight Australian capital cities using the whole building energy simulation software EnergyPlus. The studied solar cooling systems include: solar desiccant-evaporative cooling (SDEC) system, hybrid solar desiccant-compression cooling (SDCC) system, and solar absorption cooling (SAC) system. A referenced conventional vapor compression variable-air-volume (VAV) system has also been investigated for comparison purpose. The technical, environmental, and economic performances of each solar cooling system have been evaluated in terms of solar fraction (SF), system coefficient of performance (COP), annual HVAC (heating, ventilation, and air conditioning) electricity consumption, annual CO 2 emissions reduction, payback period (PBP), and net present value (NPV). The results demonstrate that the SDEC system consumes the least energy in Brisbane and Darwin, achieving 56.9% and 82.1% annual energy savings, respectively, compared to the conventional VAV system, while for the other six cities, the SAC system is the most energy efficient. However, from both energy and economic aspects, the SDEC system is more feasible in Adelaide, Brisbane, Darwin, Melbourne, Perth, and Sydney because of high annual SF and COP, low yearly energy consumption, short PBP and positive NPV, while for Canberra and Hobart, although the SAC system achieves considerable energy savings, it is not economically beneficial due to high initial cost. Therefore, the SDEC system is the most economically beneficial for most of Australian cities, especially in hot and humid climates. The SAC system is also energy efficient, but is not as economic as the SDEC system. However, for Canberra and Hobart, reducing initial cost is the key point to achieve economic feasibility of solar cooling applications.

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Section: Introductionmentioning

confidence: 92%

Section: A Cmentioning

confidence: 99%

Comparison of Different Solar-Assisted Air Conditioning Systems for Australian Office Buildings

Saha

Miller

et al. 2017

Energies

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“…For their physical scale in the city, university campuses have a significant role to play with respect to local energetic and socioeconomic impacts, going far beyond the university scale itself [18]. Universities are increasingly conceived as hubs for innovation, serving as test bed for new energy reduction strategies [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Explorative Multidimensional Analysis for Energy Efficiency: DataViz versus Clustering Algorithms

Cottafava

Sonetti²,

Gambino

et al. 2018

Energies

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Abstract:We propose a simple tool to help the energy management of a large building stock defining clusters of buildings with the same function, setting alert thresholds for each cluster, and easily recognizing outliers. The objective is to enable a building management system to be used for detection of abnormal energy use. We start reviewing energy performance indicators, and how they feed into data visualization (DataViz) tools for a large building stock, especially for university campuses. After a brief presentation of the University of Turin's building stock which represents our case study, we perform an explorative analysis based on the Multidimensional Detective approach by Inselberg, using the Scatter Plot Matrix and the Parallel Coordinates methods. The k-means clustering algorithm is then applied on the same dataset to test the hypotheses made during the explorative analysis. Our results show that DataViz techniques provide quick and user-friendly solutions for the energy management of a large stock of buildings. In particular, they help identifying clusters of buildings and outliers and setting alert thresholds for various Energy Efficiency Indices.

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“…In Europe, residential buildings represent 75% of the built area and in 2009 the residential sector was responsible "for 68% of the total final energy use in buildings" [3]. New buildings, and existing buildings that are undergoing renovation, are subject to minimum requirements for energy efficiency (EE), related to the European Union policy to achieve nearly zero energy buildings in the near future [4][5][6][7][8]. Satisfying these requirements, however, must not be favoured at the expense of the Indoor Environmental Quality (IEQ) and comfort of the building occupants and visitors [5], since "occupants spend over 85% of their time indoors" [6].…”

Section: Introductionmentioning

confidence: 99%

“…IEQ is a major factor conditioning the health and productivity of people [7] encompassing the thermal environment, the indoor air quality, as well as other health, safety and comfort aspects such as ergonomics, acoustics and lighting. Undeniably, these factors play an important role in energy performance of buildings [8].…”

Section: Introductionmentioning

confidence: 99%

Teaching and researching the indoor environment: From traditional experimental techniques towards web-enabled practices

Pereira

Carrilho

Brito

et al. 2016

Sustainable Cities and Society

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Highlights Summary of recent developments and work at ADAI's Energy, Environment and Comfort research group is presented  The Indoor Live Lab (I2L) and an e-learning course on Indoor Environmental Comfort in Buildings are introduced  The paper aims to present the facilities, instruments and the purposes behind I2L project  Several Indoor Environmental Quality (IEQ) parameters studies are discussed in particular 1 AbstractIn this paper some of the recent developments and ongoing work at the Energy, Environment and Comfort research group of ADAI (Association for the Development of Industrial Aerodynamics), in the areas of Indoor Environmental Quality and Energy Efficiency in Buildings are presented. Summarily, it is showcased a state of the art of the Indoor Live Lab, developed at the Mechanical Engineering Department of the University of Coimbra. The Indoor Live Lab (I2L) is a new platform for research and technology demonstration in IndoorEnvironmental Quality (IEQ). The main motivation for initiating this effort arose from the increasing necessity that researchers, educators and decision makers have for continuously available monitored data on all aspects of building functioning. This paper aims at presenting early developments at the I2L, as well as associated research projects which were at the centre of its creation. Firstly, the objectives of the I2L are presented. Secondly, ongoing research on both residential buildings and services buildings is exposed. After, the several IEQ parameters studies are discussed in particular. This is followed by the I2L description, location and specific features. Finally, a conclusion and future work section is presented.

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Energy use assessment of educational buildings: Toward a campus-wide sustainable energy policy

Abstract: 2016-11-02T18:49:00

Cited by 55 publications

References 9 publications

Comparison of Different Solar-Assisted Air Conditioning Systems for Australian Office Buildings

Comparison of Different Solar-Assisted Air Conditioning Systems for Australian Office Buildings

Explorative Multidimensional Analysis for Energy Efficiency: DataViz versus Clustering Algorithms

Teaching and researching the indoor environment: From traditional experimental techniques towards web-enabled practices

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