Energy Efficiency
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Solar heat gains through train windows: a non-negligible contribution to the energy balance
Energy Efficiency - Tập 11 - Trang 1397-1410 - 2018
The sector of transportation accounts for about one third of the total energy
consumption in Switzerland. A monitoring campaign of the energy consumption of a
regional train revealed the critical energy-consuming systems. Heating, cooling
and ventilation were identified as major consumers. Windows are a source of
non-controlled heat transfer. In summer, it may result in overheating leading to
larg...
Decomposing the decoupling indicator between the economic growth and energy consumption in China
Energy Efficiency - Tập 8 - Trang 1231-1239 - 2015
The decoupling theory is an appropriate tool to study the relationship between
economic growth and energy consumption (or environment pollution). But the
underlying causes of the states of decoupling are difficult to find. Based on
the Log–Mean Divisia Index (LMDI) theory, this paper provides a new way to find
the nature of the factors governing the changes in the state of decoupling
between the e...
An energy efficiency-based classification approach for street lighting by considering operational factors: a case study of Barcelona
Energy Efficiency - Tập 14 - Trang 1-32 - 2021
This paper presents a new energy efficiency-based classification approach for
street lighting. This approach considers the improvement of visual performance
by correcting the standard photometry system (photopic) by the mesopic system,
recommended within the CIE 191:2010 and the operational hours of the lighting
system, aspects that are usually disregarded by the most-used energy
classifications. ...
The thermal behaviour of extensive green roofs under low plant coverage conditions
Energy Efficiency - Tập 8 - Trang 881-894 - 2015
Green infrastructure for buildings, such as extensive green roofs, can improve
the urban environment. Previous experimental studies confirm the benefits of
these systems from different approaches: energy, hydraulics, materials, etc.
But, it is necessary to obtain data about its behaviour in real cases, where
conditions could be very heterogeneous: different surface finish, low vegetation
cover in ...
A sensitivity analysis of a cost optimality study on the energy retrofit of a single-family reference building in Portugal
Energy Efficiency - Tập 11 - Trang 1411-1432 - 2018
Improvement of the energy efficiency of residential buildings must ensure
compliance with cost optimality criteria, assuming a specific lifespan of the
building. At the same time, the energy retrofit of buildings ought to preserve
their intrinsic architectural and heritage value. Portuguese residential
buildings constructed before 1960 did not follow any energy efficiency rules.
They represent 29%...
The persistent effectiveness of online feedback and controls for sustainability in the workplace
Energy Efficiency - Tập 10 - Trang 1143-1153 - 2017
Office workers tend to waste energy at work due to little motivation for saving
energy. This study investigates the effectiveness of online feedback (e.g.,
self-monitoring, advice, comparison) and control strategies (e.g., online remote
control, scheduled control) that can promote voluntary energy conservation in
the workplace. Eighty office workers were divided into four groups, and feedback
and ...
Modelling useful energy demand system as derived from basic needs in the household sector
Energy Efficiency - Tập 7 Số 5 - Trang 903-921 - 2014
A MEPS is a MEPS is a MEPS: comparing Ecodesign and Top Runner schemes for setting product efficiency standards
Energy Efficiency - - 2013
Assessing the importance of car meanings and attitudes in consumer evaluations of electric vehicles
Energy Efficiency - Tập 9 - Trang 495-509 - 2015
This paper reports findings from a research study which assesses the importance
of attitudinal constructs related to general car attitudes and the meanings
attached to car ownership over evaluations of electric vehicles (EVs). The data
are assessed using principal component analysis to evaluate the structure of the
underlying attitudinal constructs. The identified constructs are then entered
into ...
Energy efficiency drivers in South Africa: 1965–2014
Energy Efficiency - Tập 11 - Trang 1465-1482 - 2018
This paper presents an assessment of energy performance in South Africa from
1965 to 2014 using the technique for order of preference by similarity to ideal
solution (TOPSIS). In this research, TOPSIS is used first in a two-stage
approach to assess how energy in South Africa has performed using the most
frequent indicators adopted by the literature. Afterwards, in the second stage,
neural networks...
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