A cold storage air conditioning system with energy-efficient supercooled water ice slurry generation by using heat recovery and regeneration [PDF]
E3S Web of ConferencesIce slurry cold storage technology using supercooled water is considered one of the most efficient methods. In traditional systems, to prevent ice crystal blockage in the supercooled water exchanger, the water from ice tank is typically heated to 0.5°C ...
Ma Xiaoqian +6 more
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Indoor air quality guidelines [PDF]
Occupational and Environmental Medicine, 2002 “Health-based standards exist for outdoor air, and there are good arguments for developing equivalent indoor air quality guidelines” It seems self evident that if there are health based standards for outdoor air quality, there is no reason that there should not also be standards applied to the indoor environment. After all, it is indoors that we spend
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Outdoor-indoor air pollution in urban environment: challenges and opportunity [PDF]
, 2015 With the continual improvement in our quality of life, indoor air quality has become an important area of concern in the twenty-first century. Indoor air quality is affected by many factors including the type and running conditions of indoor pollution ...
Leung, DYC
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Numerical Analysis on Performance of Different Ceiling Coverage of fan Filter Units in Semiconductor Fabs [PDF]
E3S Web of Conferences, 2022 In practical semiconductor fabs engineering, in order to reduce the investment cost, low coverage rate of FFUs is usually adopted and the air supply velocity is high, which brings high resistance to the filter mounted at FFU’s outlet. If a higher ceiling
Zhao Jiaan, Li Xianting, Xu Wei
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Optimization on fresh outdoor air ratio of air conditioning system with stratum ventilation for both targeted indoor air quality and maximal energy saving [PDF]
, 2019 Stratum ventilation can energy efficiently provide good inhaled indoor air quality with a proper operation (e.g., fresh outdoor air ratio). However, the non-uniform CO2 distribution in a stratum-ventilated room challenges the provision of targeted indoor
Cheng, Y +4 more
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A Modified Surgical Face Mask to Improve Protection and Wearing Comfort
Buildings, 2022 Wearing face masks is essential for reducing infection during the COVID-19 pandemic. However, ordinary surgical face masks can provide only moderate protection.
Tengfei (Tim) Zhang +2 more
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Applied Sciences, 2023 An elevator shaft provides passage for air exchange across floors and thus imposes infectious disease transmission risk. The moving elevator car generates positive air pressure in the shaft section to which the car approaches, while negative air pressure
Tengfei (Tim) Zhang +2 more
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An Aisle Displacement Ventilation System for Twin-Aisle Commercial Airliner Cabin [PDF]
E3S Web of Conferences, 2023 The environmental control system in most commercial airliner cabins supplies air from shoulder and ceiling level and exhausts air at floor level on both sides of the cabin walls. The ventilation system mixes air in the cabins to create a relative uniform
Wang Feng, Chen Fan, Zhang Tengfei (Tim)
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An Assessment of Indoor Air Quality (IAQ) in Metal industries of Delhi [PDF]
, 2017 With growing realization and concern for our health, the focus on Indoor Air Quality has increased. Exposure to indoor air pollution is responsible for nearly 2 million excess deaths in developing countries and for some 4% of the global burden of disease.
Gupta, P. (Puja), Khullar, M. (Malvika)
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Dynamic Performance Analysis for an Absorption Chiller under Different Working Conditions
Applied Sciences, 2017 Due to the merits of energy saving and environmental protection, the absorption chiller (AC) has attracted a lot of attention, and previous studies only concentrated on the dynamic response of the AC under a single working condition. However, the working
Jian Wang +5 more
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