Constructing HVAC energy efficiency indicators

Pérez-Lombard, Luis; Ortiz, José; Maestre, Ismael Rodríguez; Coronel, Juan

doi:10.1016/j.enbuild.2011.12.039

Cited by 47 publications

(33 citation statements)

References 5 publications

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“…productivity enhancement) delivered from energy efficiency strategies across the organisation [11]. However, a low level of information, lack of awareness, and high investment costs without clear view of the direct and indirect benefits prevent the broad uptake of energy management practices across industry [22], [23];…”

Section: Introductionmentioning

confidence: 99%

Development of a Global Energy Management System for non-energy intensive multi-site industrial organisations: A methodology

Finnerty

Sterling

Coakley

et al. 2017

Energy

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For multi-site organisations, informed decision making on capital investment aimed closing the energy efficiency gap, cutting carbon emissions and improving network performance across a global site base is a complex problem. This paper presents the systematic development and implementation of a novel methodology to reach optimal energy efficiency in multi-site organisations across their network whilst reducing carbon footprint. The methodology, a Global Energy Management System, is based on the following strategic pillars: (1) Site Characterization (2) Performance Evaluation via key performance indicators and energy benchmarking (3) Energy Strategy (4) Shared learnings and dissemination. These pillars are underpinned by essential foundations: (a) Global energy team and communication forum, (b) Knowledge base at site and global level, and (c) Corporate Energy Policy. The methodology culminates with a simplified, understandable, systematic, repeatable and scalable decision support framework addressing the complexities unique to decision-making on capital investments in global multi-site organisation. A case study is presented for a multi-national corporation in the life sciences industry. The proposed approach increased the visibility of energy and related carbon emissions issues and triggered unprecedented levels of funding and support for energy efficiency measures, leading to entering the energy efficiency continuous improvement journey towards optimal network performance.

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Section: Introductionmentioning

confidence: 99%

Development of a Global Energy Management System for non-energy intensive multi-site industrial organisations: A methodology

Finnerty

Sterling

Coakley

et al. 2017

Energy

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“…This is because different systems are used in cooling days and heating days, respectively, and each system has different efficiency, as they use various types of resources [21,22]. For example, electricity is mostly used for cooling, while gas, coal and oil can be used for heating.…”

Section: Applying System Efficiencymentioning

confidence: 99%

Development of Climate Indices Using Local Weather Data for Shading Design

Lee

Koo

et al. 2015

Sustainability

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Abstract:The energy performance of buildings depends on how effectively the building envelope responds to climate. Architects, therefore, need to design building envelopes with the consideration of local climate characteristics in the early design stage. Simplified formulas were used that evaluate the heating and cooling energy demand of building envelopes, which were applied to a model building with envelope and climate properties according to eight climate zones. Two climate indices, P and S, were developed. P enables the comparison of the heating and cooling energy demand of building envelopes, and S is for comparing the solar heat gain during heating and cooling seasons to review the feasibility of installing shading devices. The physical properties of envelopes were set differently according to the requirements in each climate zone proposed by American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 90.1. Using local climate data, the P and S of 24 cities over eight climate zones in the United States were derived, which can be used to evaluate the heating and cooling energy characteristics of envelopes. The indices not only enable users to understand the characteristics of the local climate conditions in a simple manner, but also to carry out quantitative assessments on whether shading devices are feasible and, if so, what type is recommended. OPEN ACCESSSustainability 2015, 7 1885

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“…This fact affects significantly the success of such policies and cause no little confusion and speculation on this field (Pérez-Lombard et al 2012).…”

Section: Fntroductionmentioning

confidence: 99%

Reducing energy consumption in public buildings through user awareness

Martí¹,

Casals²,

Solanellas³

et al. 2014

eWork and eBusiness in Architecture, Engineering and Construction

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Building sector is contributing to the 36% of the C02 emissions in Europe, and consurning the 40% of final energy consurnption. In this context this paper presents a new approach developed under the ENCOURAGE project to carry out the user awareness. The proposed user awareness is based on a set of KPls, and done at two levels: energy mangers and university campus users. The KPfs are displayed to the energy managers using a web-platform. With that information energy managers are able to identify actions and control algorithms to reduce the energy consun1ption. In the other hand, the university campus users awareness it is done sending messages to the user through the Twitter platform. A set of messages are defined, andan algorithm decides which messages have to be published in each moment. The aim is to promote good practices in the use ofpublic buildings. fNTRODUCTIONBuildings worldwide consume more than 20% of total energy produced (Pérez-Lombard et. al 2008). In Europe nearly 40% of final energy consumption and 36% of the green house emissions are in the buildings (EC 2013), and is expected that this percentage is bound to increase (Gangolells et. al 2012).According to the Buildings Performance Institute Europe (201 O), residential buildings comprise the largest portion ofthe European buildings stock (75%) and they are responsible for 68% of the total final energy use in buildings. In the other hand, Nonresidential buildings account for the remaining 25% ofthe total stock in Europe, being responsible for 32% ofthe total final energy use in buildings.Within this context, the need for achieving high energy and greenhouse gas emissions savings in the buildings sector has been widely advocated. In this way, the ENCOURAGE project aims to develop embedded intelligence and integration technologies that will directly optimize energy use in buildings and enable active participation in the future smart grids and achieve 20% of energy savings. The overall strategic objectives defined in the ENCOURAGE project are: a) Jncrease energy efficiency at device-level, building-leve!, district-level; b) Effective in-teraction with externa] actors; c) Effective monitor-ing and control; d) Good user comfort levels; e) Economic optimization; f) Raise awareness.The primary application domains of the EN-COURAGE project are non-residential buildings and campuses, but the project has relevancy al so to residential buildings and neighborhoods. This paper presents the experiences ofENCOURAGE project in the UPC 637 campus demonstrator, whose challenges focus on the energy efficiency improvement in buildings. lt is intended to increase university campus users and building managers' energy awareness by means of an energy information platform that will provide to the users detailed figures about the carbon footprint, the energy consurnpticm and the energy costs derived from their own activities in the campus.Although energy efficiency is a central target for energy policy and a keystone for sustainable development, an accurate enough...

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Constructing HVAC energy efficiency indicators

Cited by 47 publications

References 5 publications

Development of a Global Energy Management System for non-energy intensive multi-site industrial organisations: A methodology

Development of a Global Energy Management System for non-energy intensive multi-site industrial organisations: A methodology

Development of Climate Indices Using Local Weather Data for Shading Design

Reducing energy consumption in public buildings through user awareness

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