Synergetic cascade-evaporation mechanism of a novel building distributed energy supply system with cogeneration and temperature and humidity independent control characteristics

Meng, Nan; Li, Tailu; Wang, Jianqiang; Jia, Yanan; Liu, Qinghua; Qin, Haosen

doi:10.1016/j.enconman.2020.112620

Cited by 21 publications

(6 citation statements)

References 49 publications

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“…To verify the accuracy of the device, the researchers used a separate thermohydrometer and a thermal gun to verify the data gathered by the device. The equation for the Percentage Error was used to compute for the difference between the data obtainsed by the device and the hygrometer [37,38]. The average percentage error was used to determine the accuracy of the results obtained [39,40].…”

Section: Results and Discussion 51 Technical Analysis On Temperature And Humiditymentioning

confidence: 99%

Development of a portable electronic device for the detection and indication of fireworks and firecrackers for security personnel

Africa

Tan

2020

IJEECS

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The use of fireworks and firecrackers to celebrate festivities is a very common activity in the Philippines. But due to the lack of strict control and regulation, there are unwanted risks of accidents from occurring due to the poor handling and storage conditions of these devices. Proper monitoring is important to reduce any unnecessary risks imposed on human life and property. While existing storage monitoring devices exist, the developed prototype is designed to contain sensors that are more suited in monitoring the ideal conditions of where the fireworks are stored. Monitoring the climate conditions on these devices may seem trivial at first, but such climate change can involve a rapid rise in temperature that can accidentally ignite the fireworks and deal with catastrophic damage. Another concern is the rise of humidity that may alter that chemical characteristics of the gunpowder stored in the fireworks. Such changes may not have any noticeable effects until it arrives in the consumer, that may experience an unwanted and unintended change in the performance of the fireworks leading to accidents. Therefore, it is important for this device to properly monitor the surrounding area then indicate various forms of alarms as a method of redundancy.

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Section: Results and Discussion 51 Technical Analysis On Temperature And Humiditymentioning

confidence: 99%

Development of a portable electronic device for the detection and indication of fireworks and firecrackers for security personnel

Africa

Tan

2020

IJEECS

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“…load for dehumidification), which results in low efficiency of the air-conditioning system (Liu et al, 2017). The temperature and humidity independent control system (THICS) has been used in recent years as an efficient way to improve the HVAC, especially airconditioning system efficiency (Guan et al, 2020;Liu et al, 2019;Meng et al, 2020). Therefore, the variations of design loads for cooling and dehumidification of airconditioning system under climate change conditions should be revealed in the process of building design.…”

Section: Discussionmentioning

confidence: 99%

Impacts of temperature and humidity changes on air‐conditioning design load under the climate change conditions in different climate zones of China

Cao

Wang

et al. 2021

Meteorological Applications

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Meteorological parameters, as the important basis for improving building energy efficiency, will show apparent changes under climate change conditions. In this study, outdoor design temperature and humidity for airconditioning system in 12 cities, representing major climatic zones of China, were analysed to determine the impacts of temperature and humidity on the design load of air-conditioning system. The results showed that outdoor design temperature largely increased during the last few decades and relative humidity apparently decreased except for two cities belonging to the severe cold and hot summer and cold winter climate zones. The increase in temperature and decrease in humidity have made obvious changes in the design load of airconditioning system. The design loads for cooling increased 1.8%-10% in these selected cities during 1991-2017 compared with 1961-1990. By contrast, the design loads for dehumidification decreased 0.8%-7% in 1991-2017 relative to . When the cooling and dehumidification were considered together, the design loads changed from À1.5% to 4.1% in the two periods, depending on cities or climate zones. These results demonstrated that, under the condition of climate change, the combined changes of humidity and temperature rather than temperature alone should be fully considered to determine the design capacity of air-conditioning system, especially for temperature and humidity independent control (THIC) air-conditioning system, to save energy and improve indoor comfort.

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“…Changing this standard temperature affects the exergy results. Furthermore, steady state conditions were considered [42], and the frictional and heat losses were ignored [15,43]. The other parametric assumptions are provided in Table 1.…”

Section: Thermodynamic Analysismentioning

confidence: 99%

Assessment of a District Trigeneration Biomass Powered Double Organic Rankine Cycle as Primed Mover and Supported Cooling

et al. 2021

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This study presents a combined cooling, heating, and power system powered by biogas, suitable for small scale communities in remote locations. To run such a system, in order to obtain the daily life essentials of electricity, hot water, and cooling, municipal waste can be considered as an option. Furthermore, the organic Rankine cycle part of the organic Rankine cycle powered vapor compression chiller can be used in times of need for additional electric production. The system comprises a medium temperature organic Rankine cycle utilizing M-xylene as its working fluid, and the cooling was covered by an Isobutane vapor compression cycle powered by an R245fa employing organic Rankine cycle. The system analyzed was designated to provide 250 kW of electricity. The energetic and exergetic analysis was performed, considering several system design parameters. The impact of the design parameters in the prime mover has a much greater effect on the whole system. The system proposed can deliver cooling values at the rate between 9.19 and 22 kW and heating values ranging from 879 up to 1255 kW, depending on the design parameter. Furthermore, the second law efficiency of the system was found to be approximately 56% at the baseline conditions and can be increased to 64.5%.

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Synergetic cascade-evaporation mechanism of a novel building distributed energy supply system with cogeneration and temperature and humidity independent control characteristics

Cited by 21 publications

References 49 publications

Development of a portable electronic device for the detection and indication of fireworks and firecrackers for security personnel

Development of a portable electronic device for the detection and indication of fireworks and firecrackers for security personnel

Impacts of temperature and humidity changes on air‐conditioning design load under the climate change conditions in different climate zones of China

Assessment of a District Trigeneration Biomass Powered Double Organic Rankine Cycle as Primed Mover and Supported Cooling

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