Rating Mass-related Energy Demand for Vehicles with New Powertrain Concepts

2011 ◽  
Vol 4 (2) ◽  
pp. 2603-2607 ◽  
Author(s):  
Matthias Horn ◽  
Jens Neubeck ◽  
Jochen Wiedemann
Keyword(s):  
Energy Demand ◽  
Related Energy

Exergy analysis of building thermal load and related energy flows in buildings

2015 ◽  
Vol 26 (9) ◽  
pp. 1257-1273 ◽  
Author(s):  
Tianhe Han ◽  
Yue Zheng ◽  
Guangcai Gong
Keyword(s):  
Thermal Load ◽  
Energy Demand ◽  
Exergy Analysis ◽  
Building Design ◽  
Thermal Design ◽  
Exergy Loss ◽  
Analysis Method ◽  
Climate Zones ◽  
Related Energy ◽  
Energy Flows

In this study, the exergy analysis method was extended to analyse the building thermal load and related energy flows, aiming to investigate the exergy loss as well as improvement potential for building design and analysis. Five office buildings in five major climate zones in China were taken as case studies for the analysis. The building thermal loads and related energy flows were calculated and analysed using the exergy analysis method. Results show that the building exergy load is relatively low compared to the building thermal energy load. However, it is always met by consuming energy of high exergy value (e.g. electricity), indicating the exergy mismatch between the energy demand and supply. The latent exergy load cannot be disregarded for building thermal load and energy flows analysis, especially for buildings in humid climate. Large exergy loss, which is dominated by solar gain, was found in all five reference buildings across different climate zones. This study provides a comprehensive understanding of building thermal load and related energy flows, and would benefit building evaluation and thermal design of building envelop.

Why hydroxy-proline improves the catalytic power of the peptidoglycan N-deacetylase enzyme: insight from theory

2019 ◽  
Vol 21 (42) ◽  
pp. 23338-23345 ◽  
Author(s):  
Mario Prejanò ◽  
Isabella Romeo ◽  
Luigi Sgrizzi ◽  
Nino Russo ◽  
Tiziana Marino
Keyword(s):  
Transition State ◽  
Energy Demand ◽  
Related Energy ◽  
Hydroxy Proline ◽  
Bond Network ◽  
Catalytic Power

The OH moiety of 2Hyp establishes a larger H-bond network and an electrostatic environment that stabilizes the transition state, reducing the related energy demand.

scholarly journals Climate mitigation scenarios with persistent COVID-19-related energy demand changes

Nature Energy ◽  
2021 ◽  
Author(s):  
Jarmo S. Kikstra ◽  
Adriano Vinca ◽  
Francesco Lovat ◽  
Benigna Boza-Kiss ◽  
Bas van Ruijven ◽  
...  
Keyword(s):  
Energy Demand ◽  
Climate Mitigation ◽  
Mitigation Scenarios ◽  
Related Energy ◽  
Demand Changes

Quantifying water–energy links and related carbon emissions in cities

2011 ◽  
Vol 2 (4) ◽  
pp. 247-259 ◽  
Author(s):  
S. J. Kenway ◽  
P. Lant ◽  
T. Priestley
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Energy Use ◽  
Primary Energy ◽  
Greenhouse Gas Mitigation ◽  
Urban Water ◽  
Gas Emissions ◽  
Average Case ◽  
Related Energy

To date, key water–energy connections have not been systematically quantified. Nor has their potential for contributing to greenhouse gas mitigation been evaluated. Lack of knowledge of these links, particularly within cities, is viewed as a major limitation to energy-sensitive urban water management and integrated urban design. This paper fills part of this void. The key contribution is a new conceptual model coupled with a systematic review of the connections of influence. Drawing on Australian and international data, the results provide a structured estimate of water-related energy use and associated emissions in a hypothetical city of 1,000,000 people. This demonstrates that water-related energy use accounts for 13% of total electricity and 18% of the natural gas used by the population in the average case. This represents 9% of the total primary energy demand within Australia or 8% of total national territorial greenhouse gas emissions. Residential, industrial and commercial water-related energy use constitutes 86% of water-related greenhouse gas emissions. We conclude that urban water is a significant and overlooked lever that could significantly influence urban energy consumption.

A novel ligand with –NH2 and –COOH-decorated Co/Fe-based oxide for an efficient overall water splitting: dual modulation roles of active sites and local electronic structure

2020 ◽  
Vol 10 (18) ◽  
pp. 6266-6273
Author(s):  
Yalan Zhang ◽  
Zebin Yu ◽  
Ronghua Jiang ◽  
Jung Huang ◽  
Yanping Hou ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Water Splitting ◽  
Energy Demand ◽  
Active Sites ◽  
Electrode Materials ◽  
Global Energy ◽  
Overall Water Splitting ◽  
Local Electronic Structure ◽  
Electrochemical Water Splitting

Excellent electrochemical water splitting with remarkable durability can provide a solution to satisfy the increasing global energy demand in which the electrode materials play an important role.

Fuzzy multi-objective decision making approach for nuclear power plant installation

2020 ◽  
Vol 39 (5) ◽  
pp. 6339-6350
Author(s):  
Esra Çakır ◽  
Ziya Ulukan
Keyword(s):  
Linear Programming ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Energy Supply ◽  
Energy Demand ◽  
Nuclear Power ◽  
Power Plants ◽  
Total Duration ◽  
Objective Functions ◽  
Multi Objective

Due to the increase in energy demand, many countries suffer from energy poverty because of insufficient and expensive energy supply. Plans to use alternative power like nuclear power for electricity generation are being revived among developing countries. Decisions for installation of power plants need to be based on careful assessment of future energy supply and demand, economic and financial implications and requirements for technology transfer. Since the problem involves many vague parameters, a fuzzy model should be an appropriate approach for dealing with this problem. This study develops a Fuzzy Multi-Objective Linear Programming (FMOLP) model for solving the nuclear power plant installation problem in fuzzy environment. FMOLP approach is recommended for cases where the objective functions are imprecise and can only be stated within a certain threshold level. The proposed model attempts to minimize total duration time, total cost and maximize the total crash time of the installation project. By using FMOLP, the weighted additive technique can also be applied in order to transform the model into Fuzzy Multiple Weighted-Objective Linear Programming (FMWOLP) to control the objective values such that all decision makers target on each criterion can be met. The optimum solution with the achievement level for both of the models (FMOLP and FMWOLP) are compared with each other. FMWOLP results in better performance as the overall degree of satisfaction depends on the weight given to the objective functions. A numerical example demonstrates the feasibility of applying the proposed models to nuclear power plant installation problem.

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