Improving Energy Efficiency and Reducing CO2 Emission of Institutional Building: An Energy Audit Case Study

2021 ◽  
pp. 137-146
Author(s):  
Arjun Deo ◽  
Saurabh K. Rajput
Keyword(s):  
Energy Efficiency ◽  
Co2 Emission ◽  
Energy Audit ◽  
Reducing Co2 Emission

scholarly journals The economical benefits of conducting an ASHRAE LEVEL II energy audit

2021 ◽  
Author(s):  
Lisa Catherine Tong
Keyword(s):  
Energy Efficiency ◽  
Economic Benefit ◽  
Energy Use ◽  
Level Of Detail ◽  
Mechanical Equipment ◽  
Energy Audit ◽  
Level Ii ◽  
Level I ◽  
Energy Audits

Conducting an ASHRAE Level II Energy and Water audit provides building owners opportunities to save energy and water in their buildings. The ASHRAE Level II Energy Audit will fulfill the requirements for BOMA BESt Energy Assessment and IESO’s saveONenergy Electricity Survey and Analysis. The IESO saveONenergy allows building owners to receive monetary incentives to improve their energy efficiency. Energy audits are an effective method to increase energy efficiency for commercial buildings. However, there are multiple levels of energy audits set by ASHRAE (Level I, II, and III) which varies the level of detail and economic benefit. The role of this research is to explore the benefits of a Level II energy audit and the economic benefit of a office tower located in Toronto. This building had an ASHRAE Level I audit two years ago and a case study will be performed to evaluate the level of detail and economic benefit of a Level II Energy and Water audit. The tower was evaluated according to ASHRAE Level II guidelines and the results obtained were an Energy Star score for the building, benchmarking against BOMA BESt buildings, energy conservation measures (ECMs), financial savings, payback periods and CO2 savings. They were separated into low/no cost measures, capital measure, other measures and impractical measures. If the building managers were to target all of the recommended ECMs, a total of $300,000 in utility costs per year would be saved. This is equivalent to 1,700,000 ekWh saved per year and a 6% reduction of their current energy use. Further more, the total energy use intensity (EUI) would improve from 26.2 ekWh/ft2 to 24.7 ekWh/ft2. . This case study has allowed a comparison for the two different types of energy audit. Compared to a Level I energy audit, there is a lot more detail which can provide a better potential savings as there are more engineering calculations involved for mechanical equipment, reviewing of drawings, observation of mechanical equipment, and interviews with the building operators.

scholarly journals Energy audit proposal for industry applied to a case study in the plastics sector

DYNA ◽  
2019 ◽  
Vol 86 (210) ◽  
pp. 345-354
Author(s):  
María Isabel García Fajardo ◽  
Juan Marcel Caicedo Cuchimba ◽  
Vladimir Tobar Escobar ◽  
Juan Fernando Flórez Marulanda
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Industrial Processes ◽  
Energy Audit ◽  
Total Energy Consumption ◽  
Industry Sector ◽  
Energy Assessment ◽  
Data Collection Process

An electric type 2 energy audit towards the industry sector is proposed based on 4 stages: 1) General review of the organization, 2) Energy assessment, 3) Saving potential identification and 4) Improvement proposals of energy efficiency. Energy assessment is mainly emphasized in which, by means of the ISA-88.01 standard, the data-collection process and its analysis is carried out bearing in mind 4 axes: i) Industry equipment, ii) Electric Installations and  power quality, iii) Industrial processes and iv) Industrial habits and practices. The present proposal is applied to a case study of an enterprise from the plastics sector where it is important to mention that: 75% of the total energy consumption is represented by three molding machines. A series of actions are proposed in order to implement in the industry case study and consequently, improving the energy efficiency in 7, 25% and also optimizing production.

scholarly journals The economical benefits of conducting an ASHRAE LEVEL II energy audit

2021 ◽  
Author(s):  
Lisa Catherine Tong
Keyword(s):  
Energy Efficiency ◽  
Economic Benefit ◽  
Energy Use ◽  
Level Of Detail ◽  
Mechanical Equipment ◽  
Energy Audit ◽  
Level Ii ◽  
Level I ◽  
Energy Audits

Conducting an ASHRAE Level II Energy and Water audit provides building owners opportunities to save energy and water in their buildings. The ASHRAE Level II Energy Audit will fulfill the requirements for BOMA BESt Energy Assessment and IESO’s saveONenergy Electricity Survey and Analysis. The IESO saveONenergy allows building owners to receive monetary incentives to improve their energy efficiency. Energy audits are an effective method to increase energy efficiency for commercial buildings. However, there are multiple levels of energy audits set by ASHRAE (Level I, II, and III) which varies the level of detail and economic benefit. The role of this research is to explore the benefits of a Level II energy audit and the economic benefit of a office tower located in Toronto. This building had an ASHRAE Level I audit two years ago and a case study will be performed to evaluate the level of detail and economic benefit of a Level II Energy and Water audit. The tower was evaluated according to ASHRAE Level II guidelines and the results obtained were an Energy Star score for the building, benchmarking against BOMA BESt buildings, energy conservation measures (ECMs), financial savings, payback periods and CO2 savings. They were separated into low/no cost measures, capital measure, other measures and impractical measures. If the building managers were to target all of the recommended ECMs, a total of $300,000 in utility costs per year would be saved. This is equivalent to 1,700,000 ekWh saved per year and a 6% reduction of their current energy use. Further more, the total energy use intensity (EUI) would improve from 26.2 ekWh/ft2 to 24.7 ekWh/ft2. . This case study has allowed a comparison for the two different types of energy audit. Compared to a Level I energy audit, there is a lot more detail which can provide a better potential savings as there are more engineering calculations involved for mechanical equipment, reviewing of drawings, observation of mechanical equipment, and interviews with the building operators.

Electrical Energy Conservation in Engineering Industry: A Case Study

2014 ◽  
Vol 619 ◽  
pp. 178-182
Author(s):  
Yogesh Pahariya ◽  
Rakesh Saxena
Keyword(s):  
Energy Efficiency ◽  
Total Energy ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Engineering Industry ◽  
Process Equipment ◽  
Energy Audit ◽  
Energy Saving Potential ◽  
Energy Balances

Energy efficiency is extremely important to all organisations, especially those that are energy intensive. Detailed studies to establish, and investigate, energy balances for specific plant departments or items of process equipment have been carried out. The energy audit of the industry (Indo-German Tool Room, Indore) has been done. It has been concluded that total energy saving potential of 1,28,560 KWH per year is possible by implementing the recommendations. Hence achievable saving is 13.85% of total annual electricity consumption. The total savings Rs.7,71,360/- per year with initial investment of Rs.12,79,000/-.

Energy Efficiency Improvement in K-12 Schools: A Case Study in Florida

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Ganesh Doiphode ◽  
Hamidreza Najafi ◽  
Mariana Migliori
Keyword(s):  
Energy Efficiency ◽  
Public Schools ◽  
Energy Consumption ◽  
Engineering Students ◽  
The United States ◽  
Energy Audit ◽  
Humid Climate ◽  
Hot And Humid Climate ◽  
K 12

Abstract K-12 schools are responsible for over 1.4% of the total annual energy consumption in the United States. In a collaboration between Florida Institute of Technology and Brevard Public Schools (BPS), three schools are identified for a case study in Melbourne, FL, representing the hot and humid climate. A simple and replicable energy audit procedure is developed and conducted for the three schools to establish an understanding on the baseline energy consumption and energy end users and identify and evaluate effective energy efficiency measures (EEMs). Several EEMs are investigated and five EEMs associated with lighting, heating, ventilation and air conditioning and on-site solar power generation are selected for detailed analysis. It is determined that implementing the five recommendations will result in total of 58% reduction in the schools’ energy cost with an overall payback period of 8.4 years. The benefits of such project for schools are discussed from energy, economic, environmental, and educational perspectives. The results of this study provide insights regarding prioritizing energy efficiency projects in K-12 schools in hot and humid climate. The developed approach can be conveniently used for energy assessment in other schools and can serve as a method for training engineering students to perform energy audit.

Electricity Energy Saving Assessment for Induction Motors towards Sustainable Energy Practice in Indonesian Small and Medium Industry

2012 ◽  
Vol 229-231 ◽  
pp. 1090-1094 ◽  
Author(s):  
Yusak Tanoto
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Co2 Emission ◽  
Induction Motors ◽  
Energy Audit ◽  
Emission Mitigation ◽  
Typical Type ◽  
Energy Efficiency Indicator ◽  
Small And Medium Industry ◽  
Efficiency Indicators

This paper presents energy saving assessment on induction motors which are particularly being utilized in the small and medium industry. A walk-through motor energy audit is carried out in a typical type of industry in Indonesia to collect some important data. Strategy for annual motor energy saving is assessed involving energy efficient motor, variable speed drive, and capacitor bank. In addition, analysis is carried out to find impact on energy efficiency indicator as well as CO2 emission due to energy saving. It is revealed that the combination on selected motor saving strategy may lead to reduce electricity energy by around 10%, equal to around 38% CO2 emission mitigation. Besides, energy efficiency indicators are found to be improved. Hence environment emission is significantly reduced by applying appropriate motor energy saving for small and medium industry.

scholarly journals Ranking energy performance opportunities obtained with energy audit in dairies

2020 ◽  
Vol 24 (5 Part A) ◽  
pp. 2865-2878
Author(s):  
Mladen Josijevic ◽  
Vanja Sustersic ◽  
Dusan Gordic
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Dairy Products ◽  
Food Industry ◽  
Energy Savings ◽  
Energy Performance ◽  
Heat Energy ◽  
Energy Audit ◽  
Milk Processing

The food industry uses a considerable amount of energy and that amount has been constantly growing with further developments in the sector. The growth of the milk processing industries with the production of dairy products has followed the trends in the food industry in general. The authors made a systematization of the literature data on the most common energy efficiency opportunities (measures) in diaries. Authors also present a methodology for conducting an energy audit in dairies based on ISO 50002 which includes a multi-criteria analysis for ranking energy efficiency opportunities. The proposed methodology was applied to a case study dairy in central Serbia. Taking into account interactions between opportunities, implementation of the proposed energy saving opportunities can ensure 11-15% energy savings for electricity and 20-23% of heat energy annually.

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