In this study, ene•·gy audit was conducted at
Covenant Unive•·sity to assess the pattem of elect.-icity
consumption in m·de•· to imp.-ove ene•·gy consumption
efficiency in the Unive.-sity. Space cooling (29%) and
lighting (29%) have the highest pe1-centage elect.-icity
consumption in the unive•·sity. In the academic buildings,
maximum powe•· is consumed in space cooling (49%). In the
staff quaJ-te•·s, lighting application consumed maximum
powe•· (39%), followed by space cooling application (18%).
The annual ene•·gy and cost saving potentials fm· •·eplacing
t.-aditional flum·escent tube lights (FTLs) and incandescent
bulbs with compact fluo•·escent lamps (CFLs) in the
students' hostels and in the staff quaJ-te•·s a1·e about 394
MWh, N4.8 Million ($30,000) and 641 MWh, N7.9 Million
($49, 375) •·espectively. Fm· space cooling systems, the
annual ene•·gy and cost saving potentials fm· •·eplacing
conventional •·esistance elect.-ic •·egulato•· fans with
elect.-onic •·egulatm· fans is about 367 MWh and N 9.8
Million ($61,250), •·espectively.

A Study on Energy Demand and Consumption inCovenant University, Ota, Nigeria

E RNEST O RLANDO L AWRENCE B ERKELEY N ATIONAL L ABORATORY Energy Audit Practices in China: National and Local Experiences and Issues Bo Shen, Lynn Price, Hongyou Lu China Energy Group Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Reprint version of journal article published in “Energy Policy”, vol. 46, July 2012 June 2012 This work was supported by the China Sustainable Energy Program of the Energy Foundation through the U.S. Department of Energy under Contract No. DE-AC02- 05CH11231.

/pdf/energy-audit-practices-in-china-national-and-local-4wx6h4owx5.pdf

Energy Audit Practices in China: National and Local Experiences and Issues - eScholarship

Energy audit is considered as one of the comprehensive methods in checking the energy usage and wastage in facilities/buildings. This paper presents the results of the energy audit conducted to investigate the energy consumption pattern of tannery company from its record of fuel expenditure and electricity bills for a period of 5 years (2012 - 2016). Also, the use of energy models system, Energy Quick Energy Simulation Tool (eQUEST) to evaluate the consumption of the energy end users and performance of the company. Results shows peak electricity demand during the hot months from April to August due to high cooling or significant Air condition requirement. 2.37% of electricity consumed was contributed by the burning of AGO in the diesel power generators showing very less contribution over that of National grid 97.63%. The annual average consumption demand of electricity and diesel (kWh equivalent) of the company were 118960.72 kWh and 2881.17 kWh respectively. The energy modeling and simulation results shows that the sum total of the total monthly energy consumption by the end users is 138164 kWh representing the total average value of the annual energy use in air-conditioning (space cooling) was 27%, ventilation fan 2%, factory machineries 39%, heat rejection is 4%, pump and auxiliary is 2% and area lighting 26%. Also, the total monthly peak demand by space cooling was 22372.2 kWh, ventilation fan 1376 kWh, factory machineries 14294kWh heat rejection is 4461 kWh, pump and auxiliary is 1343 kWh and area light 11023 kWh respectively having a sum total monthly peak demand by the end users to be 44969.2 kWh. This represent energy use in air-conditioning (space cooling) was 41%, ventilation fan 3%, 26% factory machineries, heat rejection is 8%, pump and auxiliary is 2% and 20% area light of the annual peak demand. The Energy Used Index (average annual electricity use per tones of leather) was found to be 717.38kWh/tones of leather/Annum.

/pdf/energy-audit-and-management-of-a-tannery-company-a-case-vmnk6riuez.pdf

Energy Audit and Management of a Tannery Company: A Case Study of Kano State

Investigation on seasonal energy performance of residential AC systems using R-32 a low GWP refrigerant

An energy audit determines where, when, why and how energy is used in a facility, and to identify opportunities to improve efficiency. Energy audits are a powerful tool for identifying operating and equipment improvements that will save energy, reduce energy costs, and lead to better efficiency. Energy audit is also known as ‘Energy Assessment’. The present study intends to review energy audit and efficiency of a complex building and identified the ways of reducing waste of energy in a complex building. This research provides an overview on energy audit which comprises of energy audit team, types of energy phase and classifications of energy audit, then energy use index. The paper also focuses on past works of energy audit on hospital buildings, academics building and other buildings. Finally, the results reveal that air-conditioners consume more energy followed by office equipment and then lighting. It was also found that energy wastage was as a result of higher energy consuming equipment and its usage during unoccupied hours.

/pdf/energy-audit-and-efficiency-of-a-complex-building-a-4yzcplsob1.pdf

Abdullahi Audu Adamu

Papers

Energy Audit and Efficiency of a Complex Building: A Comprehensive Review