A study on a porous residential building model in hot and humid regions part 2—reducing the cooling load by component-scale voids and the emission reduction effect of the building model

2006 ◽  
Vol 41 (1) ◽  
pp. 33-44 ◽  
Author(s):  
Tomoko Hirano ◽  
Shinsuke Kato ◽  
Shuzo Murakami ◽  
Toshiharu Ikaga ◽  
Yasuyuki Shiraishi ◽  
...  
2011 ◽  
Vol 374-377 ◽  
pp. 1091-1095
Author(s):  
Shuang Ping Duan

The paper presents a qualitative effect of ventilation mode at daytime, night ventilation flow and outdoor air temperature, the temperature differences between of indoor air setting and outdoor air on cooling load reduction and indoor air temperature fluctuation at nighttime using thermal mass and night ventilation. A simple residential building model is chosen to obtain the hourly variation of cooling load at daytime and indoor air temperature at nighttime. It is noted that the temperature distribution of thermal mass material governed by an one-dimensional non-steady heat conduction equation .is considered in the paper. The dependence of the cooling load and indoor air temperature at nighttime on night ventilation flow, the outdoor air temperature, the temperature differences between of indoor air setting and outdoor air is further validated. Our results show that only suitable night ventilation flow with suitable outdoor climates and the appropriate temperature differences between of indoor air setting and outdoor air will benefit most. The present work provides guidance for designing night ventilation.


2018 ◽  
Vol 192 ◽  
pp. 02002 ◽  
Author(s):  
Yanuar Haryanto ◽  
Buntara Sthenly Gan ◽  
Nanang Gunawan Wariyatno ◽  
Eva Wahyu Indriyati

We evaluated the performance of a high-rise residential building model in Purwokerto, Indonesia due to the seismic load. The evaluation was performed based on seismic loads given in the 2002 and 2012 Indonesian National Standard (SNI) using linear static analysis, dynamic response analysis and pushover analysis. Based on the linear static analysis, the drift ratio decreased by an average of 34.42 and 32.61% for the X and Y directions respectively. Meanwhile, based on the dynamic response analysis, the drift ratio also decreased by an average of 30.74 and 27.33% for the X and Y directions respectively. In addition, the pushover analysis indicates that the performance of this high-rise residential building model is still at Immediate Occupancy (IO) level. The post-earthquake damage state in which the building remains safe to occupy, essentially retaining the pre-earthquake design strength and stiffness of the structure. The risk of life-threatening injury as a result of structural damage is very low. Although some minor structural repairs may be appropriate, these would generally not be required prior to re-occupancy.


2011 ◽  
Vol 382 ◽  
pp. 56-59
Author(s):  
Yong Hua Li ◽  
Jun Wang ◽  
Wei Ping Yan

In China, coal combustion to generate electric power is the primary method, the energy-saving and emission reduction is the urgent task. At present, the energy-saving dispatching trial method in some area evaluates energy-saving and emission reduction of coal combustion power generation according to power supply coal consumption rate only. But the power supply coal consumption rate can’t reflect the energy-saving and emission reduction effect of coal combustion power plant overall. For example, the same coal combustion unit, the coal consumption rate is difference when desulfuration system is operating or not; the coal consumption rate of the unit with SCR will be increased; the coal consumption rate of the air-cooled unit is higher than water-cooled unit; etc.. This paper considers synthetically coal consumption rate, pollution emission, water resource wastage, etc., establishes a integrated evaluation system, adopts factor analysis method, gets the integrated evaluation system and index of energy-saving and emission reduction of coal combustion power generation, evaluates energy-saving and emission reduction effect of 5 power plants reasonable. The results show that the index can reflect the energy-saving and emission reduction level of coal combustion power generation.


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