USING FAN COIL UNITS TO REDUCE ELECTRIC ENERGY CONSUMPTION FOR THE FAN DRIVE

2021 ◽  
pp. 28-36
Author(s):  
Борис Петрович Новосельцев ◽  
Ирина Игоревна Шамилова
Keyword(s):  
Energy Consumption ◽  
Ventilation System ◽  
Electric Energy ◽  
Electrical Energy ◽  
Industrial Building ◽  
Electric Energy Consumption ◽  
Traditional Scheme ◽  
The Cost ◽  
Ventilation Systems

Объём потребления энергии, в том числе и электрической, в нашей стране непрерывно увеличивается. В связи с этим возникает необходимость максимального снижения затрат электрической энергии. В статье рассматривается возможность снижения электрической энергии в приточных системах вентиляции за счёт использования вентиляторов-доводчиков. Приведены результаты аэродинамического расчета двух вариантов приточной системы вентиляции промышленного здания. Первый вариант - традиционная схема с одним общим центральным вентилятором. Второй вариант - схема с использованием вентиляторов-доводчиков на отдельных ветвях системы. В результате проведенных расчетов показано, что установка вентиляторов-доводчиков позволит существенно снизить нагрузку на привод центрального вентилятора. The volume of energy consumption, including electricity, in our country is constantly increasing. In this regard, it becomes necessary to reduce the cost of electrical energy as much as possible. The article discusses the possibility of reducing electrical energy in supply ventilation systems through the use of fans. We present the results of the aerodynamic calculation of two variants of the supply ventilation system of an industrial building. The first option is the traditional scheme with one common central fan. The second option is a scheme using fan coil units on separate branches of the system. As a result of the calculations, it is shown that the installation of fan coil units will significantly reduce the load on the central fan drive.

scholarly journals AUDIT ENERGI PADA SEBUAH HOTEL

2012 ◽  
Vol 16 (3) ◽  
pp. 131
Author(s):  
Didik Ariwibowo
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Energy Savings ◽  
Electric Energy ◽  
Electrical Energy ◽  
Hot Water ◽  
Electrical Energy Consumption ◽  
Energy Audit ◽  
Electric Energy Consumption ◽  
Pumping System

Didik Ariwibowo, in this paper explain that energy audit activities conducted through several phases, namely: the initial audit, detailed audit, analysis of energy savings opportunities, and the proposed energy savings. Total energy consumed consists of electrical energy, fuel, and materials in this case is water. Electrical energy consumption data obtained from payment of electricity accounts for a year while consumption of fuel and water obtained from the payment of material procurement. From the calculation data, IKE hotels accounted for 420.867 kWh/m2.tahun, while the IKE standards for the hotel is 300 kWh/m2.tahun. Thus, IKE hotel included categorized wasteful in energy usage. The largest energy consumption on electric energy consumption. Largest electric energy consumption is on the air conditioning (AC-air conditioning) that is equal to 71.3%, and lighting and electrical equipment at 27.28%, and hot water supply system by 4.44%. Electrical energy consumption in AC looks very big. Ministry of Energy and Mineral Resources of the statutes, the profile of energy use by air conditioning at the hotel by 48.5%. With these considerations in the AC target for audit detail as the next phase of activity. The results of a detailed audit analysis to find an air conditioning system energy savings opportunities in pumping systems. Recommendations on these savings is the integration of automation on the pumping system and fan coil units (FCU). The principle of energy conservation in the pumping system is by installing variable speed drives (VSD) pump drive motor to adjust speed according to load on the FCU. Load variations FCU provide input on the VSD pumps to match. Adaptation is predicted pump can save electricity consumption up to 65.7%. Keywords: energy audit, IKE, AC

scholarly journals Implementation of a Floating Head Pressure Condensation Control to Reduce Electrical Energy Consumption in an Industrial Refrigeration System

2021 ◽  
Vol 11 (24) ◽  
pp. 11923
Author(s):  
Fábio Luiz da Costa Carrir ◽  
Cesare Biserni ◽  
Danilo Barreto Aguiar ◽  
Elizaldo Domingues dos Santos ◽  
Ivoni Carlos Acunha Júnior
Keyword(s):  
Energy Consumption ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Electric Energy ◽  
Electrical Energy ◽  
Industrial Facilities ◽  
Improve Energy Efficiency ◽  
Electric Energy Consumption ◽  
Industrial Refrigeration

The growing global demand for energy and the costly taxes on electric energy demonstrate the importance of seeking new techniques to improve energy efficiency in industrial facilities. Refrigeration units demand a large amount of electricity due to the high power needs of the components of the system. One strategy to reduce the electric energy consumption in these facilities is pressure condensation control. The objective here was to develop a logical control model where the physical quantities in the thermodynamic process can be monitored and used to determine the optimum point of the condensation pressure and the mass flow rate of the air in the evaporative condenser. The algorithm developed was validated through experiments and was posteriorly implemented in an ammonia industrial system of refrigeration over a period of sixteen months (480 days). The results showed that the operation of the evaporative condenser with a controlled air mass flow rate by logical modeling achieved a reduction of 7.5% in the consumption of electric energy, leading to a significant reduction in the operational cost of the refrigeration plant.

scholarly journals COMPARATIVE ANALYSIS OF THE ENERGY CONSUMPTION OF FIXED AND VARIABLE SPEED PRESSURE SYSTEMS

2020 ◽  
Vol 9 ◽  
pp. 363
Author(s):  
Ana Catarina Formigoni Abel ◽  
Diego Antônio Custódio
Keyword(s):  
Energy Consumption ◽  
Energy Savings ◽  
Electric Energy ◽  
Variable Speed ◽  
Electric Energy Consumption ◽  
Cost Of Energy ◽  
Product Models ◽  
Average Potential Energy ◽  
The Cost ◽  
Frequency Inverter

The objective of this study was analyzing two pressure systems relative to energy consumption. One of the systems operates at a fixed speed and the other with variable speed by using a frequency inverter. It was selected two product models based on the water demand, which was calculated with the average flow rate spent per each type of sanitary appliance. Thus, it was possible to estimate the power consumed in each hour and then, calculate the electric energy consumption. The cost of energy per hour was also found, considering the current energy tariff. The results showed an economical use of the inverter compares to non-use. The average potential energy savings was 44.7%, and it was found R$ 369.11 of reduction in the monthly energy cost. Therefore, it is concluded the use frequency inverter is economically viable in relation to energy consumption and reduce the costs of electric energy.  

scholarly journals Calculation of specific rates of the electric energy consumption at frequency regulation of electric drives: A case study of pumping stations

2021 ◽  
Vol 939 (1) ◽  
pp. 012001
Author(s):  
T Kamalov ◽  
A Isakov ◽  
A Shavazov ◽  
A Elmuratova ◽  
B Tukhtamishev
Keyword(s):  
Energy Consumption ◽  
Experimental Studies ◽  
Electric Energy ◽  
Electrical Energy ◽  
Design Parameters ◽  
Frequency Regulation ◽  
Electric Drives ◽  
Electric Energy Consumption ◽  
Pumping Stations ◽  
Pumping Units

Abstract The issues of developing a methodology for calculating the specific rates of electrical energy consumption during frequency regulation of electric drives of pumping stations are considered. When calculating specific consumption rates, experimental studies were carried out at the Chirchik pumping station. When developing the methodology, technological, design parameters, water consumption, as well as the total capacity of pumping units based on frequency-controlled electric drives are taken into account. At the same time, the characteristics of the main parameters that must be taken into account when choosing variable frequency drives for pumping units are determined.

scholarly journals PERKIRAAN KONSUMSI ENERGI LISTRIK 2013 HINGGA 2030 ACEH TAMIANG

2017 ◽  
Vol 7 (2) ◽  
pp. 85
Author(s):  
Rahmad Purnama ◽  
Ahmad Agus Setiawan ◽  
Suhanan Suhanan
Keyword(s):  
Energy Consumption ◽  
Research Method ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Energy Consumption ◽  
Total Energy Consumption ◽  
Electric Energy Consumption ◽  
Use Of Data ◽  
End Use ◽  
Constant Prices

Aceh Tamiang is the province o f Aceh. The use of electrical energy is still not resolved in this case because of the lack of appropriate policies that can be taken because there is still no research how the amount of electrical energy consumption in Aceh Tamiang. the research method used is a model based approach to End Use of data population and households, the data GDP at constant prices, and consumption of electrical energy. All data is sourced from related agencies such as Bappeda Aceh Tamiang Data PLN Kuala Simpang branch. Forecasting electric energy consumption in Aceh on five sectors is the year 2013 was 48.8 GWh, while, in 2030 total energy consumption reached 76.5 GWh, this is an increase of 63.7 percent. The household sector accounted for the largest increase in consumption compared with other sectors for each year.

scholarly journals Household Characteristics That Influence Simple Household Demand on Electricity

2015 ◽  
Vol 16 (1) ◽  
pp. 61
Author(s):  
Tongam Sihol Nababan
Keyword(s):  
Energy Consumption ◽  
Logistic Regression Model ◽  
Electric Energy ◽  
Electrical Energy ◽  
Household Demand ◽  
City Center ◽  
Factors Affecting ◽  
Electric Energy Consumption ◽  
The City ◽  
Electricity Energy Consumption

This research aims to analyze the characteristics of households that affect the electric energy consumption of simple households. The second objective is to analyze the probability of each of the factors affecting the electricity energy consumption of small household. The research was conducted in Medan City in the period of March 2014 to November 2014 with samples of 143 small households, the customer of PT. PLN (Persero) Medan, which use the power of electricity for TR-1 /450VA. Data were analyzed by using the logistic regression model. The estimation results indicated that (1) the higher the willingnes to pay (WTP) of households, the higher the tendency to consume elec trical energy per month. (2) the closer the households residence to the city center, the higher the tendency to consume electrical energy than of the households residence in the suburbs, (3) increasingly unfavourable response to electrical quality, the higher the opportunity to consume a greater electric power monthly.

Ecological Sustainability of Fiber Optic Solar Lighting in the Future of the State of Qatar

2010 ◽  
Author(s):  
Mohammad AhsanShaikh ◽  
Musbah S. Mahfoud
Keyword(s):  
Energy Consumption ◽  
Fiber Optics ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Electric Energy ◽  
Electrical Energy ◽  
The State ◽  
Total Energy Consumption ◽  
Electric Energy Consumption ◽  
Solar Lighting

The use of electric lighting in our homes and our workplaces stands for a significant portion of the society’s electric energy consumption. Furthermore, generating such electricity leads to the production of greenhouse gases. At the same time as the electricity is coming through our lamps inside our houses, an overflow of light is flowing down from the sky and hits the exterior of the same houses. At almost any day of the year, the daylight is superior in both the illumination level and quality compared to the artificial light we are using for our everyday tasks. A technology capable of collecting this abundant sunlight and distributing it, via optical fibers, into the interior of a building will be of great benefit. Sunlight is an abundant and infinite source of energy that is being underutilized in Qatar. The state’s climate is sunny most of the year, with temperatures ranging from 12°C to 48°C, and thus the solar source of energy is abundant. Therefore, it is of an economical benefit for the state to harvest and utilize this energy source in every way possible. In Qatar, a large part of electricity is used for indoor lighting during daytime, accounting for 10% of the total electric energy required for buildings. In many facilities, this percentage is even higher. For example, illumination in an office space of 400 m2 accounts for approximately 40% of the total energy consumption of the space. In fact, Qatar is recognized amongst the world’s largest consumers of energy per capita. According to the United Nations Statistic Division, relative to the size of Qatar’s economy, the country on a whole uses twice the amount of energy as the nations of Germany or Japan. As a partial remedy to reduce the consumption of electrical energy, Qatar can take advantage of its sunny climate, and thus it is possible to collect and focus sunlight on optic-fiber cables that transfer the light to indoor rooms, buildings and stores. In the present work, we wanted to cast some light on fiber optic daylighting and its potential use in a very sunny and relatively hot environment, such as that in Qatar. The main goal of this project was to explore the use of a lighting system based on fiber optics as the main light source.

scholarly journals MULTIPLE LINEAR REGRESSION APPROACH FOR SHORT-TERM FORECASTING OF ELECTRIC ENERGY CONSUMPTION IN TOGO

2020 ◽  
Vol 8 (10) ◽  
pp. 22-28
Author(s):  
Comlanvi Adjamagbo ◽  
◽  
Akim Adekunle Salami ◽  
Yao Bokovi ◽  
Djamil Gado ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Electric Energy ◽  
Electrical Energy ◽  
Short Term ◽  
Electric Energy Consumption ◽  
Consumption Data ◽  
Regression Approach ◽  
Day Of The Week ◽  
Working Day ◽  
Short Term Forecasting

A Linear Multiple Regression approach is used to model the energy consumption of electricity in Togo. This model is developed from the load data recorded at the electric power source stations in Togo during the period from 2016 to 2017. This model predicts four input parameters (Day of the week, the type of day (working day). or not), Hours in the day and Load data of the same time of the previous day) is used to predict the electrical energy consumption data for the period of 2018 with a MAPE of 4.4964% and a correlation coefficient R2 equal to 95.5889%.

Optimization of Electrical Energy Consumption and Level Reliability of Water Supply System

2015 ◽  
Vol 72 (2) ◽  
Author(s):  
Mohd Ismail Jusoh ◽  
Folorunso Taliha Abiodun ◽  
Fatimah Sham Ismail ◽  
Sohailah Shafie
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
Electric Energy ◽  
Electrical Energy ◽  
High Energy ◽  
Supply System ◽  
Water Supply System ◽  
Operational Cost ◽  
Electric Energy Consumption ◽  
Optimized Model

Generally, high operational cost is associated with all water supply system. This is as a result of the high amount of electric energy consumption ascribed to the system due to its components. The water supply system of the Mara-Japan Industrial Institute (MJII), Beranang, Selangor is one of such system that suffers this challenge of high operational cost. In this paper we have applied the use of an Adaptive Weighted Sum Genetic Algorithm to optimize the system operations such that it minimizes the high energy consumption as well as ensuring the overall reliability of the water level in the reservoir.  The results obtained from the optimized model of the system show a promising and a significant reduction to the tune of 34.97% in the amount of energy consumed as compared with that of normal operations.

Some Considerations Regarding Efficiency of Electrical Energy Consumption

2017 ◽  
Vol 0 (0) ◽  
Author(s):  
L. M. Matica ◽  
Z. Kovendi ◽  
H. M. Silaghi ◽  
C. Costea
Keyword(s):  
Energy Consumption ◽  
Electric Current ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Current ◽  
Electrical Energy Consumption ◽  
Electric Network ◽  
Electric Energy Consumption ◽  
Harmonic Components

Abstract The analyses concerning an electric consumer may consist in determination of several components of electric current, injected by this consumer, in the electric network. Regarding sequence negative and sequence zero components of electric current, the unbalanced electrical consumer is the cause of its presence. Regarding harmonic components of electric current, the non-linear consumer is the cause of its presence. The efficiency about electric energy consumption may be characterized by the values of those components; the paper describes several considerations regarding those components of electrical current and its flow.

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