scholarly journals Energy Efficiency Opportunities for Citrus Processing

1994 ◽  
Author(s):  
Jeannie Benson
Keyword(s):  
Energy Efficiency ◽  
Energy Use ◽  
Energy Savings ◽  
Full Scale ◽  
Economic Feasibility ◽  
Profit Margin ◽  
Energy Audit ◽  
Improve Energy Efficiency ◽  
Processing Operation ◽  
Plant Personnel

Improving efficiency and saving money are primary concerns of any citrus processing operation. Conducting a full scale energy audit will reveal the energy use characteristics of your entire operation and help you to discover opportunities to improve energy efficiency. Projects are evaluated on the basis of economic feasibility and operational practicality, and accepted or rejected by the appropriate plant personnel. Utility rebates are often available for the accepted projects based upon energy savings. Energy efficiency programs can be, and have been, used to improve operational efficiency and save money — money that could be better used to expand your operation or increase your profit margin. Paper published with permission.

Increase the Energy Efficiency of the Multi-Story Apartment Building

2015 ◽  
Vol 725-726 ◽  
pp. 1395-1401 ◽  
Author(s):  
Nikolay Vatin ◽  
Darya Nemova ◽  
Yulia Ibraeva ◽  
Philipp Tarasevskii
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Residential Building ◽  
Heating System ◽  
Economic Feasibility ◽  
Energy Audit ◽  
Apartment Building ◽  
Improve Energy Efficiency ◽  
Consumption Data ◽  
Technical Measures

The article presents a structural analysis of the energy consumption of multi-story residential building, which based on analysis of the actual data flow and heat consumption data and energy audit for assessing the condition of the heating system. Methods been proposed to improve energy efficiency. The calculation shows the need and economic feasibility of the implementation of organizational and technical measures proposed in the article.

scholarly journals ANALYSIS OF RESULTS OF MEASURES PERFORMED TO INCREASE ENERGY EFFICIENCY IN VASIL KARAGIOZOV HIGH SCHOOL OF YAMBOL, BULGARIA

2018 ◽  
Vol 6 (4) ◽  
pp. 306-310 ◽  
Author(s):  
Ivan Binev
Keyword(s):  
High School ◽  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Use ◽  
Energy Savings ◽  
Climatic Conditions ◽  
Improve Energy Efficiency ◽  
Before And After ◽  
The Impact

The report analyzes the results of the implemented measures to improve energy efficiency in Vasil Karagiozov High school of Yambol, Bulgaria. Energy savings are determined by measuring and/or calculating energy consumption with previously adopted baseline levels, implementing a measure or program to improve energy efficiency by providing normalized corrections corresponding to the impact of specific climatic conditions on energy use. A reference heating energy consumption of 38.62 kWh/m2 was determined after the renovation of the building. Comparing the reference energy costs for heating before and after the implementation of the energy saving measures show a real decrease of the energy consumption for heating by 53.44%. Compared to the reference energy consumption for heating before and after the energy saving measures show an actual reduction of energy consumption for heating by 47.86%.

scholarly journals Conducting Energy Audit of Higher Education Institutions in Ukraine

2018 ◽  
pp. 196-201
Author(s):  
M. V. Fihurka
Keyword(s):  
Higher Education ◽  
Energy Efficiency ◽  
Energy Savings ◽  
Higher Education Institutions ◽  
Domestic Institutions ◽  
Energy Audit ◽  
Improve Energy Efficiency ◽  
Integrated Diagnosis ◽  
Energy Auditing ◽  
Energy Audits

The article deals with the issues of conducting energy audits of higher education institutions in Ukraine. The analysis of the feasibility of the macroeconomic approach to the organization of energy audits of the domestic institutions of higher education is conducted. Necessary of consideration of the results of energy audits in the development and substantiation of programs and projects for creasing energy savings are determined in the article. It is established that the procedure of energy auditing is to include the development of the energy passport of institutions in higher education, as well as outlined basic conditions for energy audits. The necessity of creation of single bases of energy audits of the domestic institutions for higher education to ensure equal access to co-financing projects to improve energy efficiency and transparency of the state support of energy savings is determined. The proposed studies on energy audit will facilitate the organization of a rational integrated diagnosis of fuel and energy resources and places of energy losses, with a view to more efficient use of them through the development and implementation of plans, programs and projects for improving the energy efficiency of higher education institutions. The results of the energy audit are necessary to substantiate the feasibility and assessment of the cost of realization of energy saving measures

scholarly journals Energy and Water Related Parameters in Tomato and Cucumber Greenhouse Crops in Semiarid Mediterranean Regions. A Review, Part I: Increasing Energy Efficiency

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 521
Author(s):  
Georgios Nikolaou ◽  
Damianos Neocleous ◽  
Anastasis Christou ◽  
Polycarpos Polycarpou ◽  
Evangelini Kitta ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Mediterranean Region ◽  
Energy Use ◽  
Energy Savings ◽  
Local Climate ◽  
Improve Energy Efficiency ◽  
Greenhouse Climate ◽  
Mediterranean Regions ◽  
The Mediterranean ◽  
Combat Climate Change

Countries located in the Mediterranean region share many common features in terms of agricultural sustainability and economic realities of modern farming, as they are affected by water scarcity, energy use and climate suitability. Greenhouses are considered as a mitigation measure to combat climate change and as a sustainable production system. The majority of greenhouses in the Mediterranean region are rudimentary, while those in Central and North Europe are characterized by equipment of a high technological level for greenhouse climate and fertigation management. However, the technological innovations and research originating from Central and North Europe glasshouses may not be appropriate for use in Mediterranean plastic greenhouses when considering the trade-off between agronomic needs and potential energy savings. Identifying energy measures suitable for the local climate will improve energy efficiency and crop performance toward the goal of greenhouse sustainability. This review mainly focuses on renewable and energy-efficient control systems in Mediterranean greenhouses, where crops such as tomato and cucumber are widely grown.

scholarly journals Optimal Surface Aeration Control in Full-Scale Oxidation Ditches through Energy Consumption Analysis

Water ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 945 ◽  
Author(s):  
Yong Qiu ◽  
Chi Zhang ◽  
Bing Li ◽  
Ji Li ◽  
Xiaoyuan Zhang ◽  
...  
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Rural Areas ◽  
Energy Model ◽  
Full Scale ◽  
Economic Feasibility ◽  
Model Parameters ◽  
Online Data ◽  
Improve Energy Efficiency ◽  
Aeration Control

Oxidation ditches are popularly used in rural areas and decentralized treatment facilities where energy deficiency is of concern. Aeration control technologies are well established for diffusion systems in order to improve energy efficiency, but there are still challenges in their application in oxidation ditches because surface aerators have unique characteristics with respect to oxygen transfer and energy consumption. In this paper, an integral energy model was proposed to include the energy, aeration, and fluidic effects of surface aerators, by which the energy for aeration of each aerator can be estimated using online data. Two types of rotating disks with different diameters (1800 mm and 1400 mm) were monitored in situ to estimate the model parameters. Furthermore, a feedforward–feedback loop control strategy was proposed using the concept of energy analysis and optimization. The simplified control system was implemented in a full-scale Orbal oxidation ditch, achieving an approximately 10% saving in full-process energy consumption. The cost–benefit analysis and carbon emission assessment confirmed the economic feasibility and environmental contribution of the control system. The energy model can help process designers and operators to better understand and optimally control the aeration process in oxidation ditches.

scholarly journals DEVELOPMENT OF A NEW CO2-BASED DEMAND-CONTROLLED VENTILATION STRATEGY USING ENERGYPLUS

2017 ◽  
Author(s):  
Behrang Chenari ◽  
Francisco Bispo Lamas ◽  
Adélio Rodrigues Gaspar ◽  
Manuel Gameiro da Silva
Keyword(s):  
Energy Efficiency ◽  
Indoor Air ◽  
Energy Use ◽  
Energy Savings ◽  
Environmental Condition ◽  
Ventilation Strategy ◽  
Controlled Ventilation ◽  
New Strategy ◽  
Demand Controlled Ventilation ◽  
Air Conditioning Systems

A significant amount of energy is being used by ventilation and air conditioning systems to maintain the indoor environmental condition in a satisfactory and comfortable level. Many buildings, either new or existing (throughout their renovation process) are subjected to energy efficiency requirements but these must not be in the expenses of indoor environmental conditions. For instance, indoor air quality (IAQ) has to be considered while improving energy efficiency, otherwise occupants might be exposed to inappropriate indoor environment.Demand-controlled ventilation (DCV) is a method that provides comfortable IAQ level with lowest energy use. In this paper, the main objective is developing a new CO2-based DCV strategy and simulating it using EnergyPlus. The IAQ and energy consumption associated to this strategy have been compared with the results of CO2-based DCV strategies previously developed by the same authors in another article. The comparison shows that the new strategy performs better, both in energy use and IAQ. The recorded energy savings ranged between 6-14% comparing with the previously developed strategies while IAQ slightly improved.

scholarly journals The Strategy of Implementing Energy Efficiency Standards and Labels for Domestic Air Conditioners in Libya

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Salah M Alabani ◽  
Ibrahim H Tawil
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Savings ◽  
Residential Buildings ◽  
Total Energy Consumption ◽  
Air Conditioners ◽  
Improve Energy Efficiency ◽  
Reduce Energy Consumption ◽  
Two Stages ◽  
Energy Efficiency Standards

The residential sector in Libya has grown over the past decade in the construction of residential buildings due to the increase in the population. Moreover, the increase in the level of income has contributed to the increase in the purchase of household appliances, which leads to increased demand for energy. Energy consumption in the household sector accounted for 31% of total energy consumption during 2010, and the share of air conditioners in this sector consumed 18.35%. To reduce energy consumption and improve energy efficiency in this sector, policies should be considered to apply energy efficiency standards and markers to household electrical appliances, as they are considered one of the most successful programs used in the world. Countries are implementing such programs to reduce energy consumption in the domestic sector. This paper presents the possibility of implementing such programs to introduce the importance of energy efficiency standards and labeling programs for home appliances in Libya. The calculations required to design such programs show the energy savings that can be achieved during cooling loads in the summer period of 4 months July, August, September). A strategic plan has been developed during 10-year (2020-2030) to estimate the expected savings of energy consumed and to identify possible obstacles and difficulties by gradually increasing the energy efficiency ratio for comestic air conditioners in two stages, from EER10 to EER11 in the first stage is then raised to EER12 as the second stage.

scholarly journals PROPOSING A SYSTEMATIC METHOD FOR CREATING AN ENERGY AUDIT TOOLKIT FOR COPRA PROCESSING ENTERPRISES

2011 ◽  
Vol 14 (3) ◽  
pp. 39-49
Author(s):  
Thanh Van Tran ◽  
Ha Thi Ngoc Ho ◽  
Hai Thanh Le
Keyword(s):  
Energy Efficiency ◽  
Energy Savings ◽  
High Energy ◽  
Energy Audit ◽  
Pilot Projects ◽  
Self Assessment ◽  
Systematic Method ◽  
Processing Industry ◽  
Production Processes ◽  
High Energy Consumption

Coconut processing is one of a typical industral sector of Ben Tre Province. Due to the high energy consumption chaterization, it has been selected to perform the pilot projects of promoting cleaner production and energy efficiency. Energy audit is a suggested measure to identifine opportunities and solutions for energy savings. However it is quite an expertise-demanding and timeconsuming procedure, therefore still a few number of plants have applied energy audit for their production processes. For all those reasons, there is a need of an automatic energy audit toolkit which can help enterprises in self–assessment of the energy using and performing of energy saving measures. This reseach aims at proposing a systematic method for creating an energy audit toolkit for copra processing enterprises which is expected to be a development initiative for coconut processing industry.

scholarly journals Designing Policies and Programmes for Improved Energy Efficiency in Industrial SMEs

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1338 ◽  
Author(s):  
Ida Johansson ◽  
Nawzad Mardan ◽  
Erwin Cornelis ◽  
Osamu Kimura ◽  
Patrik Thollander
Keyword(s):  
Energy Efficiency ◽  
Energy Use ◽  
Energy Audit ◽  
Scientific Publications ◽  
Energy Efficiency Policy ◽  
Efficiency Measures ◽  
Scientific Papers ◽  
Industrial Energy ◽  
Industrial Energy Efficiency ◽  
Research And Policy

Climate change, due to anthropogenic emissions of greenhouse gases, is driving policymakers to make decisions to promote more efficient energy use. Improved industrial energy efficiency is said to play a key role in the transition to more carbon-neutral energy systems. In most countries, industrial small and medium-sized enterprises (SMEs) represent 95% or more of the total number of companies. Thus, SMEs, apart from using energy, are a major driver in the economy with regard to innovation, GDP growth, employment, investments, exports, etc. Despite this, research and policy activities related to SMEs have been scarce, calling for contributions in the field. Therefore, the aim of this paper is to critically assess how adequate energy efficiency policy programmes for industrial SMEs could be designed. Results show that scientific publications in the field differ in scope and origin, but a major emphasis of the scientific papers has been on barriers to and drivers for energy efficiency. Scientific contributions from studies of energy policy programmes primarily cover energy audit programmes and show that the major energy efficiency measures from industrial SMEs are found in support processes. The review further reveals an imbalance in geographic scope of the papers within the field, where a vast majority of the papers emanate from Europe, calling for scientific publications from other parts of the world. The study synthesizes the findings into a general method on how to design efficiency programs for the sector.

Long-Term Assessment Methodology of Building Stock Thermal Energy Consumption

2021 ◽  
Author(s):  
◽  
Aleksejs Prozuments
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Thermal Energy ◽  
Energy Use ◽  
Energy Savings ◽  
Building Code ◽  
Space Heating ◽  
Industrial Building ◽  
Building Stock

Energy efficiency in the building stock is a substantial contributor to infrastructure sustainability. In Latvia, buildings’ thermal energy use for space heating accounts for 80 % of total building energy use in the cold season. Therefore, reducing thermal energy consumption for space heating needs through the implementation of energy efficiency measures, enforcement of local building codes and regulations can ultimately lead to cost savings for building owners and stakeholders. The present PhD Thesis introduces a methodology for evaluation of thermal energy saving potential in the long run across residential, public, and industrial building stock under various thermal energy consumption compliance scenarios. These scenarios were developed based on three different building code protocols with a 10-year forecast analysis. Evaluation of the proposed building code implementation practices and their feasibility in Latvian building stock is discussed for these buildings with regards to their long-term thermal energy savings potential.

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