Performance of energy recovery ventilators under different climatic regions

Al-Waked, Rafat; Mostafa, Diala Bani; Nasif, Mohammad Shakir

doi:10.1007/s12053-020-09917-w

Cited by 6 publications

(2 citation statements)

References 53 publications

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“…Specifically, 40% of energy is consumed by HVAC systems 2 . Because HVAC system energy consumption is the largest portion of commercial building energy consumption, there are many ongoing efforts to reduce building energy consumption by implementing a high-efficiency HVAC system (e.g., energy recovery ventilator, demand-controlled ventilation, variable refrigerant flow) 3 – 5 and HVAC system controls (e.g., model predictive control, adaptive predictive control, pattern recognition adaptive control, and transactive control) 6 – 9 .…”

Section: Background and Summarymentioning

confidence: 99%

Datasets of a Multizone Office Building under Different HVAC System Operation Scenarios

Yoon

Jung

et al. 2022

Sci Data

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This study provides an open-source dataset of the measured weather data, building indoor data, and system data under the different test settings. The test building is the two-story Flexible Research Platform building at the US Department of Energy’s Oak Ridge National Laboratory, in Oak Ridge, Tennessee. Four heating tests and three cooling tests were conducted. The 1-min interval of weather, building indoor data, and system data from each test setting are provided. Actual weather data were collected from a weather station installed on the roof. This paper describes information on the test building and installed sensors, data collection method, and data validation. The provided dataset can be employed to understand HVAC system conditions and building indoor conditions under different HVAC system operations and the performance of building envelope without HVAC system operation using free-floating test data. Additionally, it can be used for empirical validation of the building energy modelling engine.

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Section: Background and Summarymentioning

confidence: 99%

Datasets of a Multizone Office Building under Different HVAC System Operation Scenarios

Yoon

Jung

et al. 2022

Sci Data

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“…CFD simulations of heat and/or mass transfer within membrane heat exchangers have been conducted and results were reported [21][22][23][24][25][26][27][28]. These investigations were different in their natures: energy recovery or heat recovery simulation.…”

Section: Introductionmentioning

confidence: 99%

CFD Simulation of Energy Transfer within a Membrane Heat Exchanger under Turbulent Flow

2023

jjmie

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Air-to-air fixed plate enthalpy membrane exchanger is considered one of the equipment used in energy recovery services. Thermal performance of air-to-air energy recovery ventilator is examined numerically using a 3D CFD simulation. Air flow inside the exchanger is tested using four numerical turbulence models: Standard k-ε, k-ε renormalization group (RNG), k-ε realizable and k-ω shear-stress transport (SST) models. The adopted heat and mass exchange element within the ventilator (membrane) is a thin 98 µm porous 60 gsm Kraft paper. A user defined function (UDF) has been developed to enable the CFD model to estimate amounts of mass exchanged between the two sides of the membrane. Grid dependency study is conducted and results have shown that a perpendicular distance of 50 m or less from the membrane surface would result in a negligible variation in the ERV thermal effectiveness. The validated CFD model and UDF code against experimental measurement resulted in a maximum difference in thermal effectiveness of 3.6%. Results have shown that the SST k-ω turbulence models under enhanced wall treatment showed more sensitivity to flow at all Re values when compared with the k-ε simulated models.

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