Minimizing Electrical Energy Costs for Residential Buildings Based on the Characteristic of Walls

2021 ◽  
Author(s):  
Marwan Marwan ◽  
Tri Harianto ◽  
Dahlang Tahir
Keyword(s):  
Residential Buildings ◽  
Electrical Energy ◽  
Energy Costs

A New Aluminium Silicon-Boron Nitride Abradable for Compressor Components

1998 ◽  
Author(s):  
K. Boddenberg ◽  
B. Kock ◽  
M. Dorfman ◽  
L. Russo ◽  
M. Nestler
Keyword(s):  
Boron Nitride ◽  
Raw Materials ◽  
Electrical Energy ◽  
Air Separation ◽  
Energy Costs ◽  
Performance Improvements ◽  
And Performance ◽  
Materials Used ◽  
Abradable Coatings ◽  
Optimization And Performance

Abstract Air separation plants use centrifugal compressors where air and electrical energy are the only raw materials used in the production process. So energy costs play a crucial role and the compressors are heavily penalized when guaranteed performance levels are not achieved. In order to better generate performance, abradable coatings, previously used in the gas turbine industry, have been designed into turbocompressors. This paper will show the optimization and performance improvements of a new aluminium silicon-boron nitride material.

scholarly journals THE STUDY OF SME’S PROFITABILITY AND ITS RELATION TO THE AVAILABILITY OF ELECTRICAL ENERGY IN TELUK WONDAMA REGENCY

2019 ◽  
Vol 2 (3) ◽  
pp. 173
Author(s):  
Irawantho Irawantho ◽  
Alimuddin Alimuddin ◽  
Nursini Nursini
Keyword(s):  
Small And Medium Enterprises ◽  
Research Result ◽  
Electrical Energy ◽  
Regression Equation ◽  
Primary Data ◽  
Energy Costs ◽  
Analysis Model ◽  
The Government ◽  
Medium Enterprises

This research aimed to investigate the effect of electrical energy costs, the business capital, and the total of the laborers on the profits of the Micro Small and Medium Enterprises in Teluk Wondama Regency.This research used the regression equation. The Objects of the study were Micro Small and Medium Enterprises who were business actors who were impacted doe to the establishment of the cooperation between the Government of Teluk Wondama Regency and PT. PLN in term of supply of the electrical energy. The data were collected using the technique of questionnaires distributed to 90 micro small and medium enterprises. The types of data used were the primary data. The analysis model used in this research was the multiple linear regression.The research result indicated that (1) The electrical costs had a positive and significant effect on the profits of SME in Teluk Wondama Regency; (2) The business capital had a positive and significant effect on the profits of SME in Teluk Wondama Regency; (3) The number of laborers had a positive and significant effect on the profits of SME in Teluk Wondama Regency. The roles of the three factors together had the effect of 46.5%, while the rest of about 53.5% was determined by other factors.

scholarly journals A Review on Energy Consumption Optimization Techniques in IoT Based Smart Building Environments

Information ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 108 ◽  
Author(s):  
Abdul Shah ◽  
Haidawati Nasir ◽  
Muhammad Fayaz ◽  
Adidah Lajis ◽  
Asadullah Shah
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Optimization Algorithms ◽  
Energy Optimization ◽  
Smart Homes ◽  
Electrical Energy ◽  
Optimization Techniques ◽  
Comfort Level ◽  
Energy Consumption Optimization ◽  
User Comfort

In recent years, due to the unnecessary wastage of electrical energy in residential buildings, the requirement of energy optimization and user comfort has gained vital importance. In the literature, various techniques have been proposed addressing the energy optimization problem. The goal of each technique is to maintain a balance between user comfort and energy requirements, such that the user can achieve the desired comfort level with the minimum amount of energy consumption. Researchers have addressed the issue with the help of different optimization algorithms and variations in the parameters to reduce energy consumption. To the best of our knowledge, this problem is not solved yet due to its challenging nature. The gaps in the literature are due to advancements in technology, the drawbacks of optimization algorithms, and the introduction of new optimization algorithms. Further, many newly proposed optimization algorithms have produced better accuracy on the benchmark instances but have not been applied yet for the optimization of energy consumption in smart homes. In this paper, we have carried out a detailed literature review of the techniques used for the optimization of energy consumption and scheduling in smart homes. Detailed discussion has been carried out on different factors contributing towards thermal comfort, visual comfort, and air quality comfort. We have also reviewed the fog and edge computing techniques used in smart homes.

Hybrid Distributed Power Generation for an Isolated Rural Settlement in Masirah Island, Oman

2011 ◽  
Author(s):  
Saleh Al Saadi ◽  
Moncef Krarti
Keyword(s):  
Power Systems ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Small Community ◽  
Solar Pv ◽  
Cost Of Energy ◽  
Storage Batteries ◽  
Electrical Generation ◽  
The Cost

This paper summarizes the findings from a feasibility study of using renewable energy sources in combination with conventional power systems to meet the electrical requirements for an isolated island of Masirah in Oman. The study has been conducted to determine the best hybrid system to generate electrical energy needed for a small community of 500 residential buildings. A series of a simulation analyses have been carried out to evaluate and optimize different distribution technologies including photovolatics, wind and diesel for electrical generation in combination with storage batteries. It was found that the cost of energy could be reduced by as much as 48% compared to the cost for the baseline generation system currently used in the Masirah Island (i.e. diesel-driven generators). In particular, it was found that wind turbines in combination with storage batteries have a great impact in reducing the cost of generating electrical energy for the residential community. Moreover, solar PV panels were found unattractive under the current diesel price rates but could potentially become viable if the diesel prices increase. The paper outlines an optimal design for generating electricity for the community at lowest cost while minimizing carbon emissions.

Energy Conservation and Storage Systems

2002 ◽  
Vol 20 (5) ◽  
pp. 391-399 ◽  
Author(s):  
Ayhan Demirbaş
Keyword(s):  
Energy Management ◽  
Thermal Energy ◽  
Waste Heat ◽  
Storage Systems ◽  
Electrical Energy ◽  
Thermal Storage ◽  
Energy Costs ◽  
Thermal Battery ◽  
Storage Technology ◽  
And Storage

In response to increasing electrical energy costs and the desire for better lad management, thermal storage technology has recently been developed. Storage of thermal energy in the form of sensible and latent heat has become an important aspect of energy management with the emphasis on efficient use and conservation of the waste heat and solar energy in industry and buildings. Thermal storage has been characterized as a kind of thermal battery.

scholarly journals Investigation of the Use of Energy Efficient Bulbs in Residential Buildings in Ile-Ife, Osun State, NigeriaInvestigation of the Use of Energy Efficient Bulbs in Residential Buildings in Ile-Ife, Osun State, Nigeria

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Wahab Akeem Bolaji
Keyword(s):  
Local Government ◽  
Cost Saving ◽  
Energy Saving ◽  
Energy Efficient ◽  
Residential Buildings ◽  
Secondary Data ◽  
Sampling Technique ◽  
Electrical Energy ◽  
Simple Random Sampling ◽  
Systematic Sampling

The use of incandescent bulbs by the majority of building occupants in Nigeria has complemented high cost of electrical energy consumption and this has informed prevalence of different types of energy efficient lighting bulbs. The study, therefore, identified and examined types of lighting bulbs used, assessed the rate of use of energy efficient bulbs in selected residential buildings and examined factors influencing its use. The study was carried out in Ife Central Local Government Area of Osun State, Nigeria. Residential settlements in core wards in the study area were considered and four wards in the core zone of the Local Government were randomly selected from the total of eleven while data collection was done with the use of primary and secondary data techniques. Simple random sampling technique was used to select 5% sample size from the entire population and systematic sampling procedure was further employed by selecting every 10th building in the direction of movement which indicated selection of 123 houses. A total of 123 structured questionnaires were administered on the respondents on issues associated with the use of lighting bulbs. Data collected were analysed by both descriptive and inferential statistical techniques. The study found that 90.53% and 72.63% of the respondents used incandescent and energy saving bulbs respectively; variation existed in the wattages of different brands of energy saving and non-energy saving bulbs used in the selected buildings: A major proportion of the respondents used an average number of 1-5 lighting bulbs in buildings and its spaces therein; while quality and cost-saving benefit, energy saving benefit and durability of bulb influenced the choice of fluorescent tubes, compact fluorescent bulbs and light emitting diodes with a mean score value of 2.20, 2.29 and 2.85 respectively. In view of the need to enhance visual performance and comfort of buildings and its occupants respectively, efforts must be made by government to ensure that consumers awareness and enlightenment be increased on the types of lighting bulbs to procure and there is also need to strengthen mechanisms through the importation and sales of energy efficient bulbs only so as to enhance its cost-saving and environment–related benefits amongst others.

scholarly journals Methodological analysis for assessing the relation of the energy cost with losses of water – a case study

2021 ◽  
Vol 10 (12) ◽  
pp. e199101220265
Author(s):  
Matheus Gonçalves Silqueira ◽  
Fernando das Graças Braga da Silva ◽  
Alex Takeo Yasumura Lima Silva ◽  
Claudio Abiar Lourenço
Keyword(s):  
Energy Consumption ◽  
Treatment Plant ◽  
Electrical Energy ◽  
Field Trials ◽  
Energy Costs ◽  
Water Losses ◽  
System Diagnosis ◽  
Efficiency Measures ◽  
Pumping Stations

The rational use of energy is being increasingly encouraged. In some countries, there are even subsidies for industries to adopt energy efficiency measures. One of the sectors with great opportunities for efficiency is sanitation, where a large part of energy consumption refers to pumping stations. The objective of this work is to demonstrate the consumption of electrical energy and possible reduction of electrical energy consumption in a sector of study of the Autonomous Water and Sewage Service (SAAE) of the municipality in the south of Minas Gerais. To determine the measures to be taken to reduce energy costs, it is necessary to perform a system diagnosis. For this, field trials were carried out. The study sector had an average expense of R$ 42,097.44/year due to water losses in the system. When considering only electricity costs, they represent 34.20% of the costs in relation to water losses (R$ 14,395.90/year). The system presented 27.73% of total water losses, an energy consumption of 0.6627 kWh/m³ only for the R3 pumping station and 1.302 kWh/m³ when also considering the Water Collection and Treatment Plant (WTP).

Sign in / Sign up

Export Citation Format

Share Document