Basic actions to improve energy efficiency in commercial buildings in operation

Escrivá-Escrivá, Guillermo

doi:10.1016/j.enbuild.2011.08.006

Cited by 56 publications

(24 citation statements)

References 15 publications

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“…Cities play a key role in reaching energy efficiency targets, but still face major challenges to achieve sufficient energy efficiency. Almost 50% of the entire energy is used for heating or cooling, and buildings account for around 40% of energy consumption [12]. The existing building stock and infrastructures in cities have a great impact on final energy consumption [15].…”

Section: Discussionmentioning

confidence: 99%

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Energy Planning and Energy Efficiency in Smart City Areas

2019

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The main value added of the approach, which is considered in this paper, is the joint development of an innovative concept for energy improvement city's areas, as well as methods and tools for its implementation. A new coordinated approach to energy planning and implementation at the district level within the framework of the concept of smart cities contributes to the efforts of consumers to improve energy efficiency. The research focuses on energy efficiency for existing built-up urban structures. They represent a large part of the built environment of European cities and face significant, often urgent energy challenges.

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Section: Discussionmentioning

confidence: 99%

“…The system approach to the energy planning and energy efficiency in smart city areas opens energy planning to new actors to develop and implement more effective energy efficiency solutions, exploit synergies on district level and reduce sectoral fragmentation [11,12].…”

Section: Methodsmentioning

confidence: 99%

Energy Planning and Energy Efficiency in Smart City Areas

2019

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“…Ref. [32] discusses renewable energy in buildings in China. The research aims to forecast the growth rate of renewable energy in buildings (REIB) using a prediction model of grey theory and scenario analysis.…”

Section: Literature Reviewmentioning

confidence: 99%

Feasibility Study and Impact of Daylight on Illumination Control for Energy-Saving Lighting Systems

Bunjongjit

Ngaopitakkul

2018

Sustainability

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The main goal of energy conservation should be reducing the consumption of energy resources. Due to energy and environmental concerns in recent years, to reduce energy consumption in a lighting system, which has been one of the prime targets of energy saving, daylighting has been investigated and has become one of the energy-efficiency techniques widely applied in buildings. This paper presents an analysis of T5 fluorescent luminaire lighting control using daylight in a building. The study is conducted in two parts; simulation of a lecture room using the daylighting function of the DIALux program is performed to estimate the effect of daylighting on a task area (workplane). Another part is an experimental setup to evaluate the performance of a lighting control unit that is installed for a T5 fluorescent luminaire with a dimmable electronic ballast. The efficiency of the lighting control in term of illumination on the task area and energy consumption are also evaluated and compared with the standard case. The simulation results show that daylighting increases illuminance on a task area, especially on the window side, so the lighting system can significantly reduce its power consumption compared with a standard case (without lighting control). The experimental result shows that upon installing the lighting control with daylighting, both the average illuminance and the energy consumption in each time period are decreased compared with in the standard case. Lighting control with daylighting tries to set the average illuminance on a task area to less than 500 lux, corresponding to the amount of daylight passing through window shutters. The obtained results are useful for the design of a T5 fluorescent luminaire with lighting control using daylighting in a building lighting system for energy efficiency and reducing energy consumption, including the average illuminance on the task area, according to a relevant standard.

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“…The AHU coils are the end users of the cooling and heating energy provided by the central plant, and the energy used by these coils determines the electricity and gas consumed by central plants. Although energy measurements at a whole building level have been used for some time to evaluate building energy performance, and whole-building energy metering has increased in popularity recently [1,2], determination of the root causes of deficiencies in energy efficiency and the ways that efficiency can be improved require an understanding of thermal energy distribution in AHUs. As a result, measurements in an AHU are critical for identifying energy savings opportunities and, consequently, improving building energy efficiency.…”

Section: Introductionmentioning

confidence: 99%