Articles with "air conditioners" as a keyword



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Investigation of demand response potentials of residential air conditioners in smart grids using grey-box room thermal model

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Published in 2017 at "Applied Energy"

DOI: 10.1016/j.apenergy.2017.05.099

Abstract: Over the last few years, the development of information and communication technologies has provided a great opportunity for the residential sector to take part in demand response (DR) programs in smart grids (SGs). Optimal load… read more here.

Keywords: thermal model; air; model; room thermal ... See more keywords
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Analysis of resorption working pairs for air conditioners of electric vehicles

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Published in 2017 at "Applied Energy"

DOI: 10.1016/j.apenergy.2017.06.077

Abstract: Abstract Conventional compression type air conditioners (ACs) consume a large part of the electricity of batteries on-board of electric vehicles, and that will make the cruising mileage shorter. Sorption and resorption cycles, which are intermittent,… read more here.

Keywords: energy; working pairs; cacl; electric vehicles ... See more keywords
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Frequency control of air conditioners in response to real-time dynamic electricity prices in smart grids

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Published in 2019 at "Applied Energy"

DOI: 10.1016/j.apenergy.2019.03.127

Abstract: Abstract In the context of smart grids, residential air conditioners, as the major contributors to home electricity bills and loads on electrical grids, need to be not only energy-efficient, but also grid-responsive to relieve power… read more here.

Keywords: response; control; air; electricity prices ... See more keywords
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Zero energy potential of photovoltaic direct-driven air conditioners with considering the load flexibility of air conditioners

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Published in 2021 at "Applied Energy"

DOI: 10.1016/j.apenergy.2021.117821

Abstract: Abstract The real-time energy matching between building load and PV generation is low in actual applications of photovoltaic direct-driven air conditioners (PVACs). The indoor thermal comfort temperature range (TCTR) can enhance the load flexibility of… read more here.

Keywords: zero energy; air conditioners; real time; energy ... See more keywords
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Effects of system control strategies on startup characteristics of R290 room air conditioners

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Published in 2020 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2020.115166

Abstract: Abstract The operation of R290 air conditioners at cold ambient temperatures can lead to sub-atmospheric suction pressures, risking the safety and reliability of such air conditioners. In this study, the effects of several system control… read more here.

Keywords: strategies startup; air; startup characteristics; air conditioners ... See more keywords
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Heating behavior using household air-conditioners during the COVID-19 lockdown in Wuhan: An exploratory and comparative study

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Published in 2021 at "Building and Environment"

DOI: 10.1016/j.buildenv.2021.107731

Abstract: Wuhan is located in China's hot summer and cold winter (HSCW) zone, where the average temperature of the city from January to February 2020 is only 6.6 °C. This study aimed to explore and compare the… read more here.

Keywords: household; covid lockdown; study; air ... See more keywords
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Smart air supply terminal for floor-standing room air conditioners based on the identification of human positions

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Published in 2021 at "Building and Environment"

DOI: 10.1016/j.buildenv.2021.108041

Abstract: Abstract Floor-standing air conditioners (FSACs) have been widely used in civil and office buildings due to their high cooling capacity and easy installation in recent years. Increasing attention has been given to reducing the draft… read more here.

Keywords: smart terminal; floor standing; room; air ... See more keywords
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Development, implementation and performance of a model predictive controller for packaged air conditioners in small and medium-sized commercial building applications

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Published in 2018 at "Energy and Buildings"

DOI: 10.1016/j.enbuild.2018.08.019

Abstract: Abstract Small and medium sized commercial buildings, such as retail stores, restaurants and factories, often utilize multiple packaged air conditioners, i.e. roof top units (RTUs), to provide cooling and heating for open spaces. A conventional… read more here.

Keywords: packaged air; medium sized; sized commercial; air conditioners ... See more keywords
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The role of technology, product lifetime, and energy efficiency in climate mitigation: A case study of air conditioners in Japan

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Published in 2017 at "Energy Policy"

DOI: 10.1016/j.enpol.2017.01.045

Abstract: This study analyzed the impact on the life-cycle CO2 emissions derived from a specific durable good (i.e., household air conditioners in this study) of industrial technology changes, product lifetime changes, and energy efficiency improvements. I… read more here.

Keywords: air; air conditioners; energy efficiency; household air ... See more keywords
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A potential approach for reducing the R290 charge in air conditioners and heat pumps

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Published in 2019 at "International Journal of Refrigeration"

DOI: 10.1016/j.ijrefrig.2019.02.030

Abstract: Abstract This study presents a potential approach for reducing the propane (R290) charge required in air conditioners (ACs) by introducing micro bare-tube heat exchangers as the condenser and evaporator. A theoretical model is developed to… read more here.

Keywords: r290 charge; approach reducing; potential approach; air conditioners ... See more keywords
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An Improved Aggregated Model of Residential Air Conditioners for FIDVR Studies

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Published in 2020 at "IEEE Transactions on Power Systems"

DOI: 10.1109/tpwrs.2019.2940596

Abstract: Stalling of residential air conditioners (RACs) following a transient fault can delay the voltage recovery ranging from 3 to 20 seconds. This phenomenon is referred to as fault-induced delayed voltage recovery (FIDVR). Several aggregated RAC… read more here.

Keywords: proposed model; voltage; model; air conditioners ... See more keywords