Performance investigation of an independent dedicated outdoor air system for energy-plus houses

Kim, Min‐Hwi; Kim, Jong Kyu; Lee, Kyung Ho; Baek, Nam Choon; Park, Dong Yong; Jeong, Jae-Weon

doi:10.1016/j.applthermaleng.2018.09.131

Cited by 21 publications

(7 citation statements)

References 16 publications

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“…The simulation process is illustrated in Figure 1. In this study, nonresidential buildings were analyzed based on the measurement data of the Jincheon ecofriendly energy town [31], and residential buildings were analyzed using simulation data derived from the measurement data [32] to calculate the power consumption data, heating load data, and hot water supply load data of the buildings. Meteorological data were analyzed using the Meteonorm software.…”

Section: Model Developmentmentioning

confidence: 99%

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Feasibility of Low Carbon Renewable Energy City Integrated with Hybrid Renewable Energy Systems

Kim

Lee

2021

Energies

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This study evaluated the energy saving potential of renewable energy generation systems based on integrated solar energy in an urban environment. The solar city concept was implemented using photovoltaic (PV) and solar thermal systems. As a case study, the Sejong national pilot smart city in South Korea was selected to evaluate the renewable energy penetration rate. For evaluating the proposed renewable energy systems, the electrical and thermal loads of the smart city were estimated using field measurement data. Then, the renewable energy penetration rate of the city was evaluated. The HomerPro software was used to analyze the PV generation and operating energy consumption of the natural gas (NG) generator with a district heating network. The thermal load-supporting potential of the solar thermal system was estimated using the TRNSYS software. The results showed that the proposed urban integrated renewable energy system could meet over 30% of the renewable energy penetration rate and the levelized cost of energy and total net present cost was 7% lower than the base case system (i.e., NG generator). The proposed system also exhibited 38% less CO2 emissions than the base case system.

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Section: Model Developmentmentioning

confidence: 99%

“…The load data of residential buildings in a previous study were used to analyze the load of the residential buildings in this study [32]. The measurement data were analyzed to calculate the electricity consumption data of residential buildings, including the plug load.…”

Section: Thermal and Electric Loadsmentioning

confidence: 99%

Feasibility of Low Carbon Renewable Energy City Integrated with Hybrid Renewable Energy Systems

Kim

Lee

2021

Energies

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“…Referring to previous research [2,15,16], the operation modes of the adopted DOAS are classified as four modes. These are represented by four regions divided by three lines, according to the thermodynamic conditions of the OA on the psychrometric chart shown in Figure 4.…”

Section: Doas With Parallel System Operation Modesmentioning

confidence: 99%

“…The DOAS is a ventilation system by introducing the minimum ventilation [14], and it is generally used to remove the latent heating load of the server room; therefore, it is regularly used with a parallel system to remove the sensible heating load, and due to the use of 100% outdoor air in the DOAS, it will raise the thermal loads of the server room. Therefore, it is commonly used the enthalpy wheel (EW) to recover heat from the exhaust air (EA) for energy saving, and as a result it shows energy-saving potentials compared to the conventional VAV systems [13,15].…”

Section: Introductionmentioning

confidence: 99%

Energy Performance Comparison between Liquid-Desiccant-Assisted Air Conditioning System and Dedicated Outdoor Air System in Different Climatic Regions

Liu

Jeong

2019

Energies

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The main purpose of this research is to analyze and compare the energy performance of two different novel air conditioning systems; one is a dedicated outdoor air system (DOAS) with a parallel system and the other is a heat-pump-integrated liquid-desiccant and evaporative-cooling-assisted 100% outdoor air system (HPLD-IDECOAS). It was assumed that office buildings served by each system were located in six cities representing four different climatic regions in China. The hourly thermal loads of the office buildings meeting the local building design codes of each selected city were predicted by the TRNSYS 18 software package. The hourly thermal load data were imported into the commercial engineering equation solver (EES) program to estimate the operating energy consumption of each system via detailed energy simulations performed using valid system simulation models. The results show that the HPLD-IDECOAS has higher energy-saving potential than the DOAS with a parallel system in climate regions with high humidity, whereas, in dry regions, the difference in energy consumption between the two systems was not significant.

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“…19 shows two patterns in the moist and dry climate zones. In the moist climate zones, the energy consumption increased as the general outdoor temperature decreased, while in the dry climate zones, the energy consumption decreased as the outdoor temperature decreased, except in the climate zones 1A, 6A, and 6B.…”

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confidence: 99%

Impact of Implementing a Dedicated Outdoor Air System in Parallel with a Multi-Zone Variable-Air Volume System on Energy Consumption, Thermal Comfort, and Life Cycle Cost

Alghamdi¹

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Being surrounded by great people have helped me to successfully attain my goals throughout my life. Thanks to my parents for their limitless prays, encouragements, and supports; regardless of my age, I feel strong and confident just by realizing their existence in my life. Thanks to my wife for being a good listener, a wise advisor, and a great supporter, whenever I need her. Thanks to my kids for their musical noise and magical laughs that filled every corner of my heart. Thanks to my siblings for their encouragements and kindnesses. Thanks to my sponsor, Taif University, Saudi Arabia, and the Saudi Arabian Cultural Mission in the United States for supporting me in pursuing my graduate studies.

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Performance investigation of an independent dedicated outdoor air system for energy-plus houses

Cited by 21 publications

References 16 publications

Feasibility of Low Carbon Renewable Energy City Integrated with Hybrid Renewable Energy Systems

Feasibility of Low Carbon Renewable Energy City Integrated with Hybrid Renewable Energy Systems

Energy Performance Comparison between Liquid-Desiccant-Assisted Air Conditioning System and Dedicated Outdoor Air System in Different Climatic Regions

Impact of Implementing a Dedicated Outdoor Air System in Parallel with a Multi-Zone Variable-Air Volume System on Energy Consumption, Thermal Comfort, and Life Cycle Cost

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