Energy performance and economic analysis of a TIM-PCM wall under different climates

Taking into account the actual photometric characteristics of a road surface to design and then adjust a lighting installation is seldom done. In a lighting renovation, one of the Commission Internationale de l'Eclairage's standard r-tables is arbitrarily chosen although they are no longer representative of the characteristics of current road surfaces. The objective of the study is to assess an optimized, evolutive pavement and lighting combination, called Lumiroute®. To do this, two conventional designed sections were compared with two Lumiroute® sections. On-site measurements of road photometry, luminance and power consumption were conducted at regular intervals for three years. This paper presents the results of the photometric study together with an economic analysis. The Lumiroute® sections offer optimized performance and increased efficiency in comparison with the ordinary sections, particularly with regard to light and energy performance.

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The Early Design Stage of a Novel Solar Thermal Façade (STF) for Building Integration: Energy Performance Simulation and Socio-Economic Analysis

Energy Procedia ◽

10.1016/j.egypro.2016.09.099 ◽

2016 ◽

Vol 96 ◽

pp. 55-66 ◽

Cited By ~ 2

Author(s):

Jingchun Shen ◽

Xingxing Zhang ◽

Tong Yang ◽

Llewellyn Tang ◽

Yupeng Wu ◽

...

Keyword(s):

Economic Analysis ◽

Energy Performance ◽

Solar Thermal ◽

Design Stage ◽

Performance Simulation ◽

Early Design ◽

Early Design Stage

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Energy and economic analysis of environmental upgrading of existing office buildings

Construction Economics and Building ◽

10.5130/ajceb.v20i4.7239 ◽

2020 ◽

Vol 20 (4) ◽

Author(s):

Dinh Manh Nguyen ◽

Grace Ding ◽

Göran Runeson

Keyword(s):

Climate Change ◽

Energy Efficiency ◽

Economic Analysis ◽

Energy Performance ◽

Office Buildings ◽

Attractive Alternative ◽

Motion Sensors ◽

Improve Energy Efficiency ◽

Mandatory Requirement

Over many decades, buildings have been recognised as a significant area contributing to the negative impacts on the environment over their lifecycle, accelerating climate change. In return, climate change also impacts on buildings with extreme heatwaves occurring more frequently and raising the earth’s temperature. The operation phase is the most extended period over a building’s lifespan. In this period, office buildings consume most energy and emit the highest amount of greenhouse gas pollution into the environment. Building upgrading to improve energy efficiency seems to be the best way to cut pollution as the existing building stock is massive. The paper presents an economic analysis of energy efficiency upgrade of buildings with a focus of office buildings. The paper identifies upgrading activities that are commonly undertaken to upgrade energy efficiency of office buildings and a case study of three office buildings in Sydney, Australia has been used to analyse the results. The upgrading activities can improve the energy performance of the case study buildings from 3 stars to 5 stars NABERS energy rating in compliance with the mandatory requirement in the Australian government’s energy policy. With the potential increase in energy price, energy efficiency upgrading will become more affordable, but currently, most of them, except solar panels and motion sensors show a negative return and would not be undertaken if they did not also contribute to higher rental income and an increased life span of the building. The upgrading discussed in the paper represent a potentially attractive alternative to demolition and building anew.

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Evaluation of Cooling, Heating, and Power (CHP) Systems Based on Building Energy-Rating

ASME 2007 Energy Sustainability Conference ◽

10.1115/es2007-36145 ◽

2007 ◽

Author(s):

N. Fumo ◽

P. J. Mago ◽

L. M. Chamra

Keyword(s):

Energy Efficiency ◽

Economic Analysis ◽

Energy Efficient ◽

Energy Use ◽

Management Practices ◽

Building Energy ◽

Energy Performance ◽

Energy Star ◽

Star Rating ◽

Energy Efficient Buildings

Cooling, Heating and Power (CHP) systems are a form of distributed generation that uses internal combustion prime-power engines to generate electricity while recovering heat for other uses. CHP is a promising technology for increasing energy efficiency through the use of distributed electric and thermal energy recovery-delivery systems at or near end-user sites. Although this technology seems to be economically feasible, the evaluation and comparison of CHP systems cannot be restricted to economical considerations only. Standard economic analysis, such as life cycle economic analysis, does not take in consideration all the benefits that can be obtained from this technology. For this reason, several aspects to perform a non-conventional evaluation of CHP systems have to be considered. Among the aspects to be included in a non-conventional evaluation are: power reliability, power quality, environmental quality, energy-efficient buildings, fuel source flexibility, brand and marketing benefits, protection from electric rate hikes, and benefits from promoting energy management practices. Some benefits of these non-economical evaluations can be transferred into an economic evaluation but others give intangible potential to the technology. This paper focus on a non-conventional evaluation based on energy-efficient buildings, which is associated to energy conservation and improvement of the building energy performance rating for government energy programs like Energy Star and Leadership in Energy and Environmental Design (LEED). Results show that the use of CHP systems could improve the Energy Star Rating in more than 50 points. The Energy Star Rating is significant on the LEED Rating as a building can score up to 10 points of the 23 available in the Energy & Atmosphere category on energy efficiency alone. As much as 8 points can be obtained in this category due to the Energy Star rating increment from the use of CHP systems. Clearly the use of CHP systems will help building owners to reach the benefits from these energy programs while improving the overall energy use and energy cost.

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