Conditional-Constant Component in the Total Consumption of an Energy Resource and Its Influence on the Energy Efficiency of Industrial Consumers

2021 ◽  
pp. 459-470
Author(s):  
Nadezhda Hruntovich ◽  
Aleksey Kapansky ◽  
Svetlana Jhukovets ◽  
Y. Shenets ◽  
Mikhail Malashanka ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Resource ◽  
Constant Component ◽  
Total Consumption ◽  
Conditional Constant

Simulation of Combustion and Thermal-Flow Inside a Petroleum Coke Rotary Calcining Kiln: Part 1—Process Review and Modeling

2009 ◽  
Author(s):  
Zexuan Zhang ◽  
Ting Wang
Keyword(s):  
Energy Efficiency ◽  
Computational Model ◽  
Petroleum Coke ◽  
Energy Resource ◽  
Profit Margin ◽  
Thermal Flow ◽  
Moisture Evaporation ◽  
Important Material ◽  
Coke Fines ◽  
Carbon Anodes

Calcined coke is an important material for making carbon anodes for smelting of alumina to aluminum. Calcining is an energy intensive industry and a significant amount of heat is wasted in the calcining process. Efficiently managing this energy resource is tied to the profit margin and survivability of a calcining plant. To help improve the energy efficiency of the calcining process, a 3-D computational model is developed to gain insight of the thermal-flow and combustion behavior in the calciner. Comprehensive models are employed to simulate the moving petcoke bed with moisture evaporation, devolatilization, and coke fines combustion with a conjugate radiation-convection-conduction calculation.

scholarly journals Using models of energy consumption from influencing factors to assess the current state and energy efficiency forecasting

2020 ◽  
Vol 220 ◽  
pp. 01024
Author(s):  
Deniz Moroz ◽  
Nadzeya Hruntovich ◽  
Aliaksei Kapanski ◽  
Yauhen Shenets ◽  
Mikhail Malashanka ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Influencing Factors ◽  
Factor Model ◽  
Energy Resource ◽  
Energy Resources ◽  
Simple Relationship ◽  
Production Program ◽  
Current State ◽  
The One ◽  
The Mathematical Model

A complex of tasks that can be solved using mathematical models of the dependence of consumed energy resources on influencing factors are considered in the article. The main type of model for industrial consumers with a simple relationship between energy and technology, is the one-factor model “consumed energy resource-volume of output”. For industrial consumers with a complex relationship between energy and technology, the mathematical model of the dependence of energy resources on technology is determined by several factors. Methods for assessing the current state of energy efficiency, as well as predicting it for the future in the context of the introduction of energy saving measures and changes in the production program were proposed.

Enhancing the Power Delivery Infrastructure to Support Expanded Energy Efficiency Initiatives

2007 ◽  
Author(s):  
Clark W. Gellings ◽  
Arshad Mansoor
Keyword(s):  
Energy Efficiency ◽  
Distribution System ◽  
Energy Resource ◽  
Power Delivery ◽  
Potential Cost ◽  
Electric Distribution System ◽  
Technological Advances ◽  
Electric Distribution ◽  
End Use

The objectives of this paper are to examine the benefits of electric end-use energy efficiency as well as the potential cost to enhancing the current electric distribution system, to examine the quantifiable impact of electric end-use energy efficiency as an energy resource, to suggest critical technological advances that must be made to the current electric distribution system to enable greater use of electric end-use energy efficiency, and to summarize a proposed technology R&D initiative.

Energy Balance Analysis on the Slow Pyrolysis Process of Cattle Manure

2013 ◽  
Vol 392 ◽  
pp. 531-534 ◽  
Author(s):  
Xuan Liu ◽  
Zi Fu Li ◽  
Yao Zhong Zhang
Keyword(s):  
Energy Efficiency ◽  
Energy Resource ◽  
Cow Manure ◽  
Pyrolysis Process ◽  
Slow Pyrolysis ◽  
Energy Value ◽  
Balance Analysis ◽  
Process Energy ◽  
In The Beginning ◽  
Energy Balances

Energy balances are increasingly used to assess the energy efficiency and productivity of production. In this study, energy balances for the slow pyrolysis process of cow manure were calculated. The results show that, for cow manure dry matter, all the recovered energy value from the pyrolysis process products is about 12 times of the energy needs for the dry matters pyrolysis process. But the moisture has a noteworthy impact on the energy efficiency. When the input moisture is 60.85%, the recovered energy value from all products is approximately equal to the process energy consumption, and if only using non-condensable gases (NCG) as the energy resource, the input moisture should lower than 36.63%. Meanwhile, if the vapor could be separated in the beginning phase of pyrolysis process, the energy efficiency will be greatly improved, e.g. if removed all water vapor out the system at 423K, the former two data could be 71.43% and 48.18%, which is 10.58% and 11.45% higher than the process without vapor separation handling.

scholarly journals Energy efficiency as an energy resource

2008 ◽  
Vol 42 (3) ◽  
pp. 652-653 ◽  
Author(s):  
Catherine M. Cooney
Keyword(s):  
Energy Efficiency ◽  
Energy Resource

Adoption of voluntary approach: Can voluntary approach generate collective impacts for China achieving ambitious energy efficiency targets?

2017 ◽  
Vol 29 (2) ◽  
pp. 281-299 ◽  
Author(s):  
Mingshun Zhang ◽  
Ying Cui ◽  
Erik ter Avest ◽  
Meine Pieter van Dijk
Keyword(s):  
Energy Efficiency ◽  
Energy Resource ◽  
Feasibility Studies ◽  
Cost Effective ◽  
Shared Vision ◽  
Collective Impact ◽  
Voluntary Approach ◽  
Growing Economy ◽  
And Control ◽  
Voluntary Approaches

China has a fast growing economy in the past three decades that not only contributes to a rise in welfare but also to major energy, resource and environmental problems. Traditional command-and-control approaches are focusing on laggards instead of the forerunners and on sanctions of polluters that are not yet complying with standards. These policy approaches are ineffective to mobilize the potential capacities of cleaner production. This study is conducted in three phases of feasibility studies, demonstrations and up-scaling of adoption of voluntary approaches in China for achieving ambitious energy and environmental targets. The results show that voluntary approach is a proven collective impact approach for China achieving ambitious energy targets. As compared to the energy and environmental targets set by authorities, more than 10%–20% higher targets of energy efficiency and environmental performance can be achieved by adoption of voluntary approaches. The study has concluded six successful factors that are crucial for China adopting collective impact approach of Voluntary Agreement in the field of sustainable production. Those six factors are: (1) a common agenda with shared vision for improvement, (2) co-create with trust, (3) continuous communication based on trust and common motivation, (4) backbone support and facilitation, (5) incentives and sanctions and (6) monitoring, data verification and evaluation. This study provides a good example for China developing and implementing more flexible, public–private-partnership oriented, cost-effective and collective impact policies that could facilitate China achieving high sustainability in industries.

scholarly journals Energy-Efficient Time and Energy Resource Allocation in Non-selfish Symbiotic Cognitive Relaying Sensor Network with Privacy Preserving for Smart City

2020 ◽  
Author(s):  
Ping Li ◽  
Yu Liu ◽  
Xiang Gao ◽  
Huibo Li ◽  
Peng Gong
Keyword(s):  
Resource Allocation ◽  
Energy Efficiency ◽  
Sensor Network ◽  
Energy Resource ◽  
Primary User ◽  
Information Privacy ◽  
Privacy Preserving ◽  
Resource Allocation Algorithm ◽  
Allocation Algorithm ◽  
Time Resource

Abstract Energy efficiency and privacy preserving have become essential for the wireless sensor networks. In the previous work, an optimal power allocation algorithm was investigated for a non-selfish symbiotic cognitive relaying scheme (NSCRS) in the sensor network with coexistence of a primary user (PU) and cognitive users (CUs). However, the optimal strategy of energy and time resource allocation as well as the privacy preserving was not considered. In this paper, we further consider the joint energy and time resource allocation problem for the cognitive users in NSCRS to maximize the overall capacity of the primary user and cognitive users with the consideration of information privacy under the energy constraints of cognitive users. With full channel state information (CSI), i.e., PU s -PU d , PU s -CUs and CUs-PU d , an optimal energy and time resource allocation algorithm is proposed based on the exhaustive searching. In order to reduce the overhead of CSI feedback, a suboptimal algorithm, in which only the instantaneous CSI of PU s -PU d , the instantaneous CSI of PU s -CUs and an averaged CSI of CUs-PU d by long term observation rather than an instantaneous value of CSI of CUs-PU d are required, is additionally proposed. Simulation results demonstrate the energy efficiency of primary and cognitive users in the NSCRS with consideration of information privacy can be greatly improved by the proposed algorithms.

scholarly journals Determination of the Conditional-Constant Component of the Bank’s Current Liabilities

2016 ◽  
pp. 283-295
Author(s):  
A. P. Vozhzhov ◽  
O.V. Lunyakov ◽  
N. A. Lunyakova
Keyword(s):  
Constant Component ◽  
Conditional Constant

scholarly journals Predictive adaptation methodology for portfolio management of energy saving projects at metallurgical enterprises

2020 ◽  
pp. 52-64
Author(s):  
С.Г. Кійко
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Portfolio Management ◽  
Business Strategy ◽  
Adaptive Systems ◽  
Planning Process ◽  
Block Diagram ◽  
Energy Resource ◽  
Metallurgical Enterprise

A methodology for managing portfolios of energy saving projects at metallurgical enterprises is proposed. It forms a paradigm of predictive adaptation based on interconnected adaptive systems for planning, monitoring and managing changes and allows for forecasting energy consumption for complex technological processes and production, as well as modeling and evaluating the quality of the fuel and energy balance, in conditions of limited resources and risks, to form and select energy saving projects for implementation, while coordinating the priorities of the business strategy and the energy efficiency strategy of the metallurgical enterprise. A multi-level model of energy consumption of a metallurgical enterprise has been developed, which makes it possible to assess the effectiveness of energy-saving projects selected for implementation, objectively assess the share of each energy resource in the total flow, determine the energy intensity of a separate production, workshop, and the entire enterprise, and adjust the strategic direction in energy management. Using the model, it is possible to solve a number of tasks, including assessing the rationality and efficiency of the existing energy consumption structure at the enterprise, predicting the expected levels of energy consumption when changing the technology, product range and quality, and comparing various technologies and equipment in terms of energy efficiency, optimal management of energy flows taking into account changes in production conditions. The basic requirements for the organization of a planning and management system for a portfolio of energy saving projects at a metallurgical enterprise are formulated. The block diagram of a computer system for planning and managing a portfolio of energy saving projects at PJSC "Dneprospetsstal" is presented. The developed system of energy saving processes should be built into the system of enterprise processes, correspond to the strategic goals of the enterprise and the characteristics of the production process. The scheme of energy costs planning process implemented at the enterprise was considered.

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