Energy efficient appliances in a residential building

Kamalakannan, D; Mariappan, V.; Narayanan, V.; Ramanathan, N S

doi:10.1109/sgbc.2016.7936060

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Furthermore, these devices can be DC compatible through the use of permanent-magnet DC motors with variable driving frequencies, more efficient motors than their AC counterparts, and there are even versions that are used in remote places powered by DC, such as extractor hoods or fridges. Others, such as coffee machines or hair dryers, have commercial DC powered versions [35][36][37].…”

Section: Home Devices Analysismentioning

confidence: 99%

Towards DC Energy Efficient Homes

et al. 2021

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The aim of this paper is to shed light on the question regarding whether the integration of an electric battery as a part of a domestic installation may increase its energy efficiency in comparison with a conventional case. When a battery is included in such an installation, two types of electrical conversion must be considered, i.e., AC/DC and DC/AC, and hence the corresponding losses due to these converters must not be forgotten when performing the analysis. The efficiency of the whole system can be increased if one of the mentioned converters is avoided or simply when its dimensioning is reduced. Possible ways to achieve this goal can be: to use electric vehicles as DC suppliers, the use of as many DC home devices as possible, and LED lighting or charging devices based on renewables. With all this in mind, several scenarios are proposed here in order to have a look at all possibilities concerning AC and DC powering. With the aim of checking these scenarios using real data, a case study is analyzed by operating with electricity consumption mean values.

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Section: Home Devices Analysismentioning

confidence: 99%

Towards DC Energy Efficient Homes

et al. 2021

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“…Todays, the use of brushless motors in wide range of household applications, such as washing machines, refrigerator compressors, dishwashers, air conditioners and HVAC systems, will save considerable energy savings and improve performance [14]. With these results, equipping evaporative coolers with an estimated 17 million as the largest consumer of electrical power in the country is fully justifiable.…”

Section: Brushless Motor and Drive Systemmentioning

confidence: 99%

Technical and Economic Considerations for using of Permanent Magnet Brushless Motors in Evaporative Water Coolers

Niasar

NikKhah

EshratAbadi³

2018

Scientia Iranica

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Evaporative coolers due to their low cost are used in hot and dry regions of many countries especially in Iran. Conventional evaporative coolers use single-phase induction motors (SPIMs). But the benefits of these motors are very low, and their substitution with high efficient electrical motors is considered by industrial parties. In this paper, the details of using the brushless motor in the application of evaporative cooler are presented. A 1/2 hp brushless motor and drive are designed and built. This motor-drive is tested by a dynamometer and standard testing equipment. Also, for the approval of this motor-drive, a 5000 m 3 /h direct evaporative water cooler equipped with this motor is examined under the airflow rate test in the reference laboratory. The results obtained in both tests are compared with the test results of a typical SPIM. The results verify an increase of at least 60% for energy efficiency compared to evaporative coolers equipped with SPIM.Moreover, a new control scheme based on power control instead of speed control is proposed to stabilize the outlet airflow rate. The results indicate that use of brushless motors in this application can offer considerable energy saving, and helps to protect environment. 2

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“…However, if both possibilities were evaluated under the same conditions, the prices of DC appliances could be similar to the prices of their AC versions-or even lower. In fact, due to their simplicity, DC electrical appliances need a lower quantity of components for their construction, making their cycle of life longer and having lower probability of failure [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Effects of Adding Batteries in Household Installations: Savings, Efficiency and Emissions

Villanueva¹,

Cordeiro²,

Feijóo³

et al. 2020

Applied Sciences

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Nowadays, common electrical household appliances are mostly being powered by means of alternate current (AC), although there are cases where direct current (DC) is used instead. In all cases, internal devices are supplied with DC, and this fact involves there are losses due to the need for AC/DC converters. At the same time, most electrical home consumption takes place during peak hours when electricity is more expensive in many electricity markets. The addition of a battery in these installations permits storing electrical energy during certain periods of the day with the aim of supplying it during other ones—when this operation is more efficient or convenient—simultaneously reducing costs and greenhouse gas emissions. In this paper, a comparison is proposed between three possible home consumption scenarios, i.e., one consisting of a current AC system, one consisting of an AC system with a battery, and a third consisting of a hybrid AC/DC system with a battery.

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Energy efficient appliances in a residential building

Cited by 6 publications

References 5 publications

Towards DC Energy Efficient Homes

Towards DC Energy Efficient Homes

Technical and Economic Considerations for using of Permanent Magnet Brushless Motors in Evaporative Water Coolers

Effects of Adding Batteries in Household Installations: Savings, Efficiency and Emissions

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