Experimental and numerical study on heavy gas contaminant dispersion and ventilation design for industrial buildings

Han, Ou; Zhang, Ying; Li, Angui; Li, Jianwei; Li, Yuwei; Liu, Huagan

doi:10.1016/j.scs.2020.102016

Cited by 35 publications

(10 citation statements)

References 39 publications

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“…Currently, China promulgated a series of policies on urban planning and construction (Several Opinions of the CPC Central Committee and the State Council on Further Strengthening the Administration of Urban Planning and Construction, 2016 ), the construction of new types of urbanization and integrated development of urban and rural areas (Key tasks for the new type of urbanization and the integrated development of urban and rural areas by 2020, 2020 ), the construction of regional integration in the Yangtze River Delta (The Outline of the Regional Integration Development Plan for the Yangtze River Delta, 2019 ), and the construction of digital transportation (Outline of digital transportation Development Plan, 2019 ). Many researches provide design recommendations for different situations, such as urban traffic ( Shen et al, 2020 ), office building ( Shan et al, 2020 ), urban underground ( Yuan et al, 2020 ), courtyard ( Leng, Wang, & Liu, 2020 ) and ventilation system ( Han et al, 2020 ). Current design codes for cities and buildings can provide specific design recommendations based on the types of hazards, which are basically limited to human defense, earthquakes, fires, floods, etc.…”

Section: Reflections On the Reform Of Urban Construction In The Post-mentioning

confidence: 99%

Vision of China’s future urban construction reform: In the perspective of comprehensive prevention and control for multi disasters

Wang

2021

Sustainable Cities and Society

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Highlights Reform of urban design regulations required considering multi disasters’ prevention A integrated prevention system to be established based on multiple objectives’ optimization The equilibrium of disaster occurrence probability and stop loss cost Providing reference for the prevention and control of cities epidemic and urban disasters

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Section: Reflections On the Reform Of Urban Construction In The Post-mentioning

confidence: 99%

Vision of China’s future urban construction reform: In the perspective of comprehensive prevention and control for multi disasters

Wang

2021

Sustainable Cities and Society

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“…The outcomes illustrate that the rooms could be cooled down by 2.9 and 1.7 degrees Celsius, respectively. Han et al [21] studies the SF 6 gas dispersion characteristics using experimental and numerical methods in a substation building. The gas leakage angles are analyzed and diverse freshening strategy constraints are adopted, which include airborne passage plan, extent, and airborne-alternating frequency to assess airborne aeration function.…”

Section: Introductionmentioning

confidence: 99%

An Efficient HVAC Network Control for Safety Enhancement of a Typical Uninterrupted Power Supply Battery Storage Room

et al. 2021

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Lead-acid batteries utilised in electrical substations release hydrogen and oxygen when these are charged. These gases could be dangerous and cause a risk of fire if they are not properly ventilated. Therefore, this research seeks to design and implement a network control panel for heating, ventilation, and air conditioning system (HVACS). This is achieved by using a specific range of controllers, which have more than thirty loops of proportional, integral, and derivative (PID) control to achieve a cost-effective design. It performs the required function of extracting hydrogen and oxygen, maintaining the desired temperature of the battery storage room within recommended limits (i.e., 25 ± 1 °C tolerance) without compromising quality, as set out in the user requirement specification. The system control panel allows the user to access control parameters such as changing temperature set-points, fan-speed, sensor database, etc. It does this automatically and allows no human interface after all necessary settings and installation are completed. The hardware is configured to detect extreme hydrogen and oxygen gas content in the battery room and to ensure that the HVACS extracts the gas content to the outside environment. The system’s results show that the network control panel operates effectively as per the recommended system requirements. Therefore, the effective operation of the HVACS ensures sufficient gas ventilation, thus mitigating the risk of fire in a typical battery storage room. Furthermore, this also enhances battery lifespan because of regulated operating temperature, which is conducive to minimise the effect of sulfation in lead–acid batteries (LAB). The extraction of toxic gases, regulation of temperature, ensuring suitable humidity in UPS battery room is important as it provides longer operational service of equipment, thus reducing frequent maintenance in these rooms. This benefits the electricity supply industry and helps in saving for unplanned maintenance costs.

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“…The results show that the rooms could be cooled down by 2.9 °C and 1.7 °C, respectively. Han et al [21] studies the gas dispersion characteristics using experimental and numerical methods in a substation building. The gas leakage angles are analysed and different ventilation design parameters adopted (i.e.…”

Section: Introductionmentioning

confidence: 99%

An Efficient HVAC Network Control for Safety Enhancement of a Typical UPS Battery Storage Room

Lencwe¹,

Chowdhury²,

Mahlangu³

et al. 2021

Preprint

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Lead-acid batteries utilised in electrical substations release hydrogen and oxygen when these are charged. These gases could be dangerous and cause a risk of fire if they are not properly ventilated. Therefore, this research seeks to design and implement a network control panel for heating, ventilation, and air-conditioning systems (HVACS). This is done using a specific range of controllers, which have more than thirty loops of proportional, integral and derivative (PID) control to achieve a cost-effective design. It performs the required function of extracting hydrogen, oxygen, and maintaining the desired temperature of the battery storage room within the recommended limits (i.e. 25°C ±1°C tolerance) without compromising quality as set out in the user requirement specification in Appendix-A. The system control panel allows the user to access control parameters such as changing temperature set-points, fan-speed, sensor database amongst others. The hardware is configured to detect extreme hydrogen and oxygen gas content in the battery room and ensure that the HVACS extract the gas content to the outside environment. The results of the system show that the network control panel effectively operates as per the recommended system requirements. Therefore, the effective operation of the HVACS ensures sufficient gas ventilation, thus mitigating the risk of fire in a typical battery storage room. Furthermore, the effective operation of HVACS enhances battery lifespan because of regulated operating temperature, which is conducive to minimise the effect of sulfation in lead acid Batteries (LABs).

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Experimental and numerical study on heavy gas contaminant dispersion and ventilation design for industrial buildings

Cited by 35 publications

References 39 publications

Vision of China’s future urban construction reform: In the perspective of comprehensive prevention and control for multi disasters

Vision of China’s future urban construction reform: In the perspective of comprehensive prevention and control for multi disasters

An Efficient HVAC Network Control for Safety Enhancement of a Typical Uninterrupted Power Supply Battery Storage Room

An Efficient HVAC Network Control for Safety Enhancement of a Typical UPS Battery Storage Room

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