Optimization study of heating performance for an impinging jet ventilation system based on data-driven model coupled with TOPSIS method

Ye, Xiao; Qi, Hechuang; Kang, Yanming; Zhong, Ke

doi:10.1016/j.buildenv.2022.109465

Cited by 15 publications

(3 citation statements)

References 45 publications

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“…2). where it is possible to visually determine the sections of the network with high and low pressure, the most dangerous from the point of view of leaks, and, consequently, reducing the aerodynamic efficiency and energy efficiency of the ventilation system [8][9][10].…”

Section: Discussionmentioning

confidence: 99%

“…Figure3shows a diagram of the pressure in the flow of the duct ventilation valve, where it is possible to visually determine the sections of the network with high and low pressure, the most dangerous from the point of view of leaks, and, consequently, reducing the aerodynamic efficiency and energy efficiency of the ventilation system[8][9][10].To increase the aerodynamic efficiency and the complex energy parameter of the ventilation system, it is necessary to eliminate volume losses by increasing the reliability of ventilation equipment, in particular, ventilation valves for various purposes.The expression for the complex energy parameter of the ventilation system EPVS can be written as…”

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confidence: 99%

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Some aspects of ventilation system quality indicators

Samarskaya,

Pirozhnikova,

Chudnovets

2024

E3S Web Conf.

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The article analyzes the factors affecting the performance and efficiency of industrial ventilation systems, as well as evaluated the technology and constructive reliability of indoor climate systems. The purpose of the work was to find ways to improve energy efficiency as a priority indicator of modern industrial ventilation systems in conditions of significant and ever-increasing need to save energy consumption costs. The work uses analytical research methods based on theories of probability and reliability of technical systems, analysis of known scientific and own practical results. In the course of the study, the results were obtained allowing to estimate the efficiency of the ventilation system not only in terms of the installed capacity and efficiency of the ventilation unit, but also taking into account such important indicators as energy efficiency, process reliability and functional purpose of the system. The ways of increasing the complex aerodynamic parameter of the ventilation system with the possible elimination of energy costs are determined.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Some aspects of ventilation system quality indicators

Samarskaya,

Pirozhnikova,

Chudnovets

2024

E3S Web Conf.

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“…To solve these problems, this research group put forward a new air supply mode for a powerhouse in the tall space of an underground hydropower station combined with a vertical wall-attached air supply mode. Recently, jet ventilation has gained scholarly attention due to high momentum and favorable flow pattern [21][22][23], including impinging jet ventilation [24,25], attached plane jets, confluent jet ventilation and so on [26][27][28]. Compared with other air supply methods, the total cooling load borne by an attached air supply is smaller, which saves energy and does not affect the net height of a space.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Air Distribution and Thermal Environment in Attached Ventilation Mode in the Generator Layer of a Hydropower Station

Ren,

Li,

et al. 2024

Buildings

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Because they are in enclosed underground buildings, the generator layers of hydropower stations have limited ventilation. In order to reduce the influence of a hot and humid environment on equipment and staff health and create a good thermal environment with good air quality for underground buildings, in this paper, vertical wall-attached ventilation was combined with the generator layer of a hydropower station to replace traditional ventilation. The influence of air supply velocity, air supply outlet position, and the opening mode of the generator layer on indoor velocity and temperature field distribution were analyzed via numerical simulation, and the evaluation indices of different cases were also compared. In the single-sided vertical wall-attached ventilation mode, when the velocity was increased from 4 m/s to 8 m/s, the maximum increment in the energy utilization coefficient was 41%, and the maximum reduction in the velocity non-uniformity coefficient was 9.5%. The results show that the single-sided mode can offer a higher ventilation efficiency than the double-sided mode, with a higher energy efficiency and a more uniform air distribution. Based on the mean temperature and velocity, and the key evaluation indices (head-foot temperature difference, percentage of dissatisfaction, non-uniformity coefficient, energy utilization coefficient, and air diffusion performance index), it is suggested that the single-sided air supply mode should be adopted for this kind of tall building, with an air supply velocity of v = 6 m/s and two open air supply outlets at each interval.

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TOPSIS Scoring Method for Industrial Users Based on DEMATEL-EWM Weighting Method

Zhu

Bai

2023

Lecture Notes in Electrical Engineering

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Optimization study of heating performance for an impinging jet ventilation system based on data-driven model coupled with TOPSIS method

Cited by 15 publications

References 45 publications

Some aspects of ventilation system quality indicators

Some aspects of ventilation system quality indicators

Numerical Study of Air Distribution and Thermal Environment in Attached Ventilation Mode in the Generator Layer of a Hydropower Station

TOPSIS Scoring Method for Industrial Users Based on DEMATEL-EWM Weighting Method

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