Energy Cost of Energy Saving in Building: A Review

2011 ◽  
Author(s):  
Yvan Dutil ◽  
Daniel Rousse
Keyword(s):  
Energy Saving ◽  
Energy Cost ◽  
Cost Of Energy

scholarly journals CASE STUDY OF ENERGY CONSERVATION IN INDUSTRY BY APPLICATION OF LEAN TOOLS

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
N.Sujith Prasanna ◽  
Dr.J.Nagesh Kumar
Keyword(s):  
Energy Conservation ◽  
Energy Saving ◽  
Energy Cost ◽  
Energy Use ◽  
Energy Savings ◽  
Sustainable Manufacturing ◽  
Integrated Approach ◽  
Energy Saving Potential ◽  
Lean Tools

Energy cost is significant in many of the manufacturing activities. The efficiency of energy use is quiet low as there are substantial visible and hidden losses. Visible losses can be easily identified and corrective action can be taken. However hidden and indirect losses form a sizeable portion of the losses. Identifying these losses is not easy and requires an integrated approach which includes thorough study of process, operations and their interactions with energy use. Industries across sectors have implemented lean management principles which target various wastes occurring in the plant. This paper discusses case studies which highlight the exploitation of lean tools as a means for unearthing hidden energy saving potential that often go unnoticed. In addition to the energy savings which results in improved profits and competitiveness, the approach also aids the industry to pursue a path of sustainable manufacturing.

Research of Cost Estimation of Energy-Saving Buildings Based on the Full Lifecycle Theory

2013 ◽  
Vol 357-360 ◽  
pp. 2454-2459
Author(s):  
Hui Ling Li ◽  
Hang Tian Liu ◽  
Xiao Qin Li
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Capital Investment ◽  
Analytical Tool ◽  
Social Benefits ◽  
Full Life Cycle ◽  
Cost Of Energy ◽  
Full Life

This paper first selects the theory of full lifecycle cost as the entry point and analyses the composition of full lifecycle cost of energy-saving buildings. Then it clarifies that the full lifecycle cost estimation of energy-saving buildings is an analytical tool in capital investment and a way to minimize the full lifecycle cost of energy-saving buildings. We also construct the concept and steps of cost estimation and build two mathematical models of full lifecycle cost estimation under two different application conditions; Finally, this paper illustrates the economic and social benefits brought by full life cycle cost estimation of energy-saving buildings through the case studies.

Efficiency of Cold Accumulation and Chilling Machine Usage

2017 ◽  
Vol 6 (4) ◽  
pp. 50-57
Author(s):  
А. Синцов ◽  
A. Sintsov
Keyword(s):  
Energy Saving ◽  
Energy Cost ◽  
Thermodynamic Calculations ◽  
Cooling Load ◽  
Vapor Compression ◽  
Machine Performance ◽  
Discharge Cycle ◽  
Working Together ◽  
Charge Discharge ◽  
Reserve Storage

This is continuation of author’s works in energy saving area; the work’s aim is to identify opportunities for energy cost reducing when cold producing by vapor compression chilling machine with variable cooling load. Have been considered schemes, in which the stored cold compensates the cooling load’s peaks. Have been presented the results of thermodynamic calculations, which show the possible ranges of chilling machine performance changing while working together with a cold accumulator. As a device for cold reserve storage have been considered an ice accumulator having short, not exceeding a day “charge-discharge” cycle, and a seasonal cold accumulator charged during the winter.

Application of Energy-Saving Building Materials and Economic Comparison

2012 ◽  
Vol 193-194 ◽  
pp. 448-451
Author(s):  
Zhong Min Liu ◽  
Wei Gao ◽  
Jing Ji
Keyword(s):  
Energy Saving ◽  
Building Materials ◽  
Reactive Power ◽  
Construction Project ◽  
Future Directions ◽  
Advantages And Disadvantages ◽  
Cost Of Energy ◽  
Frp Reinforcement ◽  
Engineering Cost ◽  
Economic Comparison

This article introduces several common building materials and new-style energy-saving materials, and their advantages and disadvantages are given. Reactive power concrete and FRP reinforcement will be applied widely in actual engineering. Through specific examples engineering cost of energy-saving materials is introduced, finally gives the building developments and future directions, these can provide reference for application of novel materials in construction project.

scholarly journals Techno-energy-economic sensitivity analysis of hybrid system Solid Oxide Fuel Cell/Gas Turbine

AIMS Energy ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 934-990
Author(s):  
O. Corigliano ◽  
◽  
G. De Lorenzo ◽  
P. Fragiacomo
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Energy Saving ◽  
Gas Turbine ◽  
Primary Energy ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Levelized Cost ◽  
Main System ◽  
Cost Of Energy

<abstract> <p>The paper presents a wide and deep analysis of the techno-energy and economic performance of a Solid Oxide Fuel Cell/Gas Turbine hybrid system fed by gas at different compositions of H<sub>2</sub>, CO, H<sub>2</sub>O, CO<sub>2</sub>, CH<sub>4, </sub> and N<sub>2</sub>. The layout of the system accounts for pressurizing of entering fluids, heat up to the set Solid Oxide Fuel Cell inlet conditions, Solid Oxide Fuel Cell thermo-electrochemical processing, Solid Oxide Fuel Cell—exhaust fluids combustion, turbo-expansion after heat up, and final recovery unit for cogeneration purposes.</p> <p>An ad hoc numerical modeling is developed and then run in a Matlab calculation environment. The influence on the system is evaluated by investigating the change of the fuel composition, and by managing the main operating parameters such as pressure and the fuel utilization factor. The analysis reports on the specific mass flowrates necessary to the purpose required, by assessing the SOFC outlet molar compositions, specific energies (work) at main system elements, specific thermal energies at main system elements, energy and technical performance for Solid Oxide Fuel Cell energy unit; the performance such as electric and thermal efficiency, temperatures at main system elements. A final sensitivity analysis on the performance, Levelized Cost of Energy and Primary Energy Saving, is made for completion. The first simulation campaign is carried out on a variable anodic mixture composed of H<sub>2</sub>, CO, H<sub>2</sub>O, considering the H<sub>2</sub>/CO ratio variable within the range 0.5-14, and H<sub>2</sub>O molar fraction variable in the range 0.1-0.4; used to approach a possible syngas in which they are significantly high compared to other possible compounds. While other simulation campaigns are conducted on real syngases, produced by biomass gasification. The overall Solid Oxide Fuel Cell/Gas Turbine system showed a very promising electric efficiency, ranging from 53 to 63%, a thermal efficiency of about 37%, an LCOE ranging from 0.09 to 0.14 ＄·kWh<sup>-1</sup>, and a Primary Energy Saving in the range of 33-52%, which resulted to be highly affected by the H<sub>2</sub>/CO ratio.</p> <p>Also, real syngases at high H<sub>2</sub>/CO ratio are noticed as the highest quality, revealing electric efficiency higher than 60%. Syngases with methane presence also revealed good performance, according to the fuel processing of methane itself to hydrogen. Low-quality syngases revealed electric efficiencies of about 51%. Levelized Cost of Energy varied from 0.09 (for high-quality gas) to 0.19 (for low-quality gas) ＄·kWh<sup>-1</sup>, while Primary Energy Saving ranged from 44 to 52%.</p> </abstract>

scholarly journals An Approach to Energy Saving and Cost of Energy Reduction Using an Improved Efficient Technology

2015 ◽  
Vol 04 (04) ◽  
pp. 61-68 ◽  
Author(s):  
Abubakar Kabir Aliyu ◽  
Abba Lawan Bukar ◽  
Jamilu Garba Ringim ◽  
Abubakar Musa
Keyword(s):  
Energy Saving ◽  
Energy Reduction ◽  
Efficient Technology ◽  
Cost Of Energy

scholarly journals Energy Losses Due to Imperfect Payment Infrastructure and Payment Instruments

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8213
Author(s):  
Oleksandr Melnychenko
Keyword(s):  
Energy Efficiency ◽  
Energy Cost ◽  
Negative Impact ◽  
The European Union ◽  
Strategic Objectives ◽  
Improve Energy Efficiency ◽  
Cost Of Energy ◽  
Using Data ◽  
The Impact ◽  
Number Of Customers

One of the strategic objectives of the European Union is a reduction in greenhouse gas emissions and improvement of energy efficiency by at least 32.5% in different areas of the economy by 2030. However, little is known about the impact of payment in retail on energy consumption. The purpose of this paper is to assess the chain of losses of time and energy, and therefore financial losses, that occur due to the imperfection of payment infrastructure and instruments using data of cashiers’ working time. The research is based on a regression analysis method, where the energy cost per payment transaction is considered in this study as a function of the number of customers per hour and the energy cost. The results of the panel models highlight that the number of customers per hour has a negative impact on the cost of energy per payment transaction. Furthermore, modern means and methods of payment, including cryptocurrencies, do not solve the problem of the excessive time that it takes to service payments, which entails a waste of energy and money. The empirical results give valuable insights into how to best organise payment in retail to achieve lower energy costs and improve energy efficiency in payment infrastructure.

scholarly journals Analysis of coordinated control of Beijing-Tianjin-Hebei smog based on evolutionary game theory

2021 ◽  
Vol 248 ◽  
pp. 02030
Author(s):  
Yuan Qing-min ◽  
Tan Xin
Keyword(s):  
Energy Saving ◽  
Emission Reduction ◽  
Evolutionary Game ◽  
Ecological Compensation ◽  
Cost Of Energy ◽  
Reduction Strategies ◽  
Compensation Standard ◽  
Emission Reduction Strategies ◽  
The Stability ◽  
The Cost

Based on the perspective of ecological compensation and ecological claims, this paper analyzes the stability of Beijing Tianjin Hebei haze governance alliance by using asymmetric evolutionary game model, and obtains the optimal strategy combination. The results show that: a reasonable ecological compensation standard is very important for enterprises to adopt energy-saving and emission reduction strategies. Only when the total value of ecological claims in the two places is higher than the cost of energy-saving and emission reduction, enterprises will adopt energy-saving and emission reduction strategies, and the implementation of energy-saving and emission reduction strategies will not be shaken by the amount of ecological compensation.

Event-Based Production Control for Energy Efficiency Improvement in Sustainable Multistage Manufacturing Systems

2018 ◽  
Vol 141 (2) ◽  
Author(s):  
Yang Li ◽  
Jun-Qiang Wang ◽  
Qing Chang
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Cost ◽  
Manufacturing Systems ◽  
Production Control ◽  
Control Method ◽  
Sustainable Manufacturing ◽  
Environmental Crisis ◽  
System Level ◽  
Event Based

There has been an increasing trend for manufacturers to shift toward sustainable manufacturing strategies in response to an ever-growing pressure from fluctuating energy price and environmental crisis. Reducing energy consumption is considered as an important step to achieve the sustainability of a production system. This paper proposes an event-based control methodology to improve the production energy efficiency through strategically switching appropriate stations to energy saving mode. Based on an event-based analysis of production dynamics, an analytical approach is developed to quantitatively predict the system level production loss resulted from an energy saving control event (ESCE). A genetic-based control algorithm is proposed to balance the trade-off between the gain from energy saving and the expense of throughput loss. The energy improvement analysis results in a fundamental understanding of production energy dynamics and a significant decrease of energy cost for a manufacturing facility. Numerical case studies are performed to validate the effectiveness of the proposed method. It is found that the control method can effectively reduce energy cost, while only slightly impacting production.

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