scholarly journals Multi-Objective Optimization of Building Life Cycle Performance. A Housing Renovation Case Study in Northern Europe

2020 ◽  
Vol 12 (18) ◽  
pp. 7807
Author(s):  
Francesco Montana ◽  
Kai Kanafani ◽  
Kim Wittchen ◽  
Harpa Birgisdottir ◽  
Sonia Longo ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Optimization Method ◽  
Optimization Techniques ◽  
Embodied Energy ◽  
Cycle Performance ◽  
Multi Objective Optimization ◽  
Gas Emissions ◽  
Multi Objective

While the operational energy use of buildings is often regulated in current energy saving policies, their embodied greenhouse gas emissions still have a considerable mitigation potential. The study aims at developing a multi-objective optimization method for design and renovation of buildings incorporating the operational and embodied energy demands, global warming potential, and costs as objective functions. The optimization method was tested on the renovation of an apartment building in Denmark, mainly focusing envelope improvements as roof and exterior wall insulation and windows. Cellulose insulation has been the predominant result, together with fiber cement or aluminum-based cladding and 2-layered glazing. The annual energy demand has been reduced from 166.4 to a range between 76.5 and 83.7 kWh/(m2 y) in the optimal solutions. The fact that the legal requirements of 70 kWh/(m2 y) are nearly met without building service improvements indicates that energy requirements can be fulfilled without compromising greenhouse gas emissions and cost. Since the method relies on standard national performance reporting tools, the authors believe that this study is a preliminary step towards more cost-efficient and low-carbon building renovations by utilizing multi-optimization techniques.

scholarly journals Synthetic building stocks as a way to assess the energy demand and greenhouse gas emissions of national building stocks

2018 ◽  
Vol 173 ◽  
pp. 443-460 ◽  
Author(s):  
Claudio Nägeli ◽  
Clara Camarasa ◽  
Martin Jakob ◽  
Giacomo Catenazzi ◽  
York Ostermeyer
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Gas Emissions

scholarly journals Greenhouse gas emissions, energy demand and land use associated with omnivorous, pesco-vegetarian, vegetarian, and vegan diets accounting for farming practices

2020 ◽  
Vol 22 ◽  
pp. 138-146 ◽  
Author(s):  
Anaëlle Rabès ◽  
Louise Seconda ◽  
Brigitte Langevin ◽  
Benjamin Allès ◽  
Mathilde Touvier ◽  
...  
Keyword(s):  
Land Use ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Farming Practices ◽  
Gas Emissions

scholarly journals Applying multi-objective genetic algorithm (MOGA) to optimize the energy inputs and greenhouse gas emissions (GHG) in wetland rice production

2020 ◽  
Vol 6 ◽  
pp. 2988-2998
Author(s):  
Suha Elsoragaby ◽  
Azmi Yahya ◽  
Muhammad Razif Mahadi ◽  
Nazmi Mat Nawi ◽  
Modather Mairghany ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Rice Production ◽  
Wetland Rice ◽  
Gas Emissions ◽  
Multi Objective ◽  
Multi Objective Genetic Algorithm ◽  
Energy Inputs

scholarly journals Multi-objective optimization of energy and greenhouse gas emissions in water pumping and treatment

2020 ◽  
Vol 82 (12) ◽  
pp. 2745-2760
Author(s):  
Iliana Cardenes ◽  
Afreen Siddiqi ◽  
Mohammad Mortazavi Naeini ◽  
Jim W. Hall
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Water Supply Systems ◽  
Urban Water Supply ◽  
Multi Objective Optimization ◽  
Gas Emissions ◽  
Supply Systems

Abstract A large part of operating costs in urban water supply networks is usually due to energy use, mostly in the form of electricity consumption. There is growing pressure to reduce energy use to help save operational costs and reduce carbon emissions. However, in practice, reducing these costs has proved to be challenging because of the complexity of the systems. Indeed, many water utilities have concluded that they cannot practically achieve further energy savings in the operation of their water supply systems. This study shows how a hybrid linear and multi-objective optimization approach can be used to identify key energy consumption elements in a water supply system, and then evaluate the amount of investment needed to achieve significant operational gains at those points in the supply network. In application to the water supply system for the city of London, the method has shown that up to 18% savings in daily energy consumption are achievable. The optimal results are sensitive to discount rate and the financial value placed on greenhouse gas emissions. Valuation of greenhouse gas emissions is necessary to incentivise high levels of energy efficiency. The methodology can be used to inform planning and investment decisions, with specific focus on reducing energy consumption, for existing urban water supply systems.

scholarly journals The MiLA tool: Modeling greenhouse gas emissions and cumulative energy demand of energy crop cultivation in rotation

2017 ◽  
Vol 152 ◽  
pp. 67-79 ◽  
Author(s):  
Christiane Peter ◽  
Xenia Specka ◽  
Joachim Aurbacher ◽  
Peter Kornatz ◽  
Christiane Herrmann ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Energy Crop ◽  
Cumulative Energy ◽  
Cumulative Energy Demand ◽  
Gas Emissions ◽  
Crop Cultivation

Applying optimization techniques to improve of energy efficiency and GHG (greenhouse gas) emissions of wheat production

Energy ◽  
2016 ◽  
Vol 103 ◽  
pp. 672-678 ◽  
Author(s):  
Ashkan Nabavi-Pelesaraei ◽  
Homa Hosseinzadeh-Bandbafha ◽  
Peyman Qasemi-Kordkheili ◽  
Hamed Kouchaki-Penchah ◽  
Farshid Riahi-Dorcheh
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Optimization Techniques ◽  
Gas Emissions ◽  
Wheat Production

Analysis of Embodied Energy Consumption and Greenhouse Gas (GHG) Emissions in Chinese Manufacturing Industry

2012 ◽  
Vol 616-618 ◽  
pp. 1148-1153
Author(s):  
Dong Sun ◽  
Chu Xia Tong
Keyword(s):  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Manufacturing Industry ◽  
Ghg Emissions ◽  
Calculation Model ◽  
Embodied Energy ◽  
Gas Emissions ◽  
Electric Equipment ◽  
Chinese Manufacturing Industry

This paper attempts to discuss the embodied energy consumption and embodied greenhouse gas emissions in manufacturing industry. Based the on input-output theory, this paper establishes the calculation model, which gives the calculation of embodied energy consumption and embodied greenhouse gas emissions of 2002 and 2007 respectively. By comparison, it draws the conclusion that the total direct energy consumption of 2007 is much more than the year of 2002, while the total embodied energy consumption is less than the year of 2002. However, Non-metallic mineral products, Metal smelting and pressing and Electric equipment and machinery perform otherwise. The reason accounting for the calculation results is that the embodied energy intensity is greatly decreased.

Sign in / Sign up

Export Citation Format

Share Document