Effect of Heat-Reflective Insulation Coating of Building Energy Saving in Summer

2013 ◽  
Vol 427-429 ◽  
pp. 368-371
Author(s):  
Chao He ◽  
Yang Wang ◽  
Yi Bin Chen ◽  
Teruyuki Fukuhara

In order to discuss the effect of energy saving of heat-reflective insulation coating on exterior walls of building, the wall temperature change of two test rooms with heat insulation or not in Hangzhou has been monitored in summer, and the heat flux data of east, south and west walls were analyzed. The results indicate that the reflective coatings reduce the exterior surface temperature by up to 7 to 8°C. The reduction in heat gain of east, south and west walls is significant, which is the cooling effect. The total surface heat gain of exterior walls without reflective coatings is 2.44 times larger than those without them. In particular, the heat gain of walls with reflective coatings is nearly 5.27 times more than that of walls without reflective coatings. The reduction in electricity consumption of air-conditioning system in the building with reflective coatings is 2.5KWh/m2 per month by calculation, which well proves the energy saving effect of reflective coatings.

2011 ◽  
Vol 71-78 ◽  
pp. 3657-3661 ◽  
Author(s):  
Wei Lin Guo ◽  
Chao He ◽  
Teruyuki Fukuhara

This paper presents an experimental study on the energy saving effect of reflective coatings on exterior walls. Two identical test buildings were built in Zhejiang College of Construction, one of which is covered with reflective coatings and the other not. The wall temperature fluctuation of both buildings is monitored in summer, which includes the east, south and west walls. The results indicate that the maximum reduction of wall temperature is 9-10 °C in the building with reflective coatings, compared with wall temperature in the other without it. The reduction in heat gain of east, south and west walls is obvious, so is the cooling effect. The reduction in electricity consumption of air-conditioning system in the building with reflective coatings is 0.94 KWh/m2 per month times by calculation, which well proves the energy saving effect of reflective coatings.


Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 829
Author(s):  
Xian Rong ◽  
Lichao Jiao ◽  
Xiangfei Kong ◽  
Guangpu Yuan

In this article, we mixed hollow glass beads with nano-TiO2 and iron oxide red in a certain proportion to prepare a low-brightness, high-reflective, safe, and durable cooling coating throughout the experiments. The coating is suitable for energy-saving in tropical areas. To discuss the energy saving effects of the coating on an exterior envelope in tropical areas, a comparative analysis for two scenario models of a two-story residential building in Kuala Lumpur, Malaysia was conducted. The results indicated that the heat reflective insulation coating could reduce the exterior envelope surface temperature effectively, and the maximum temperature change was about 6–8 °C. Through calculations, it was found that the annual energy saving rate was 12.9%, which showed that the energy saving effect of the heat insulation coating was obvious in Kuala Lumpur. The brightness of the coating was less than 50%, and its comfort and safety met the requirements.


2011 ◽  
Vol 225-226 ◽  
pp. 239-242 ◽  
Author(s):  
Hong Lei Ma ◽  
Jian Hui Niu

An energy saving residential building in Zhangjiakou was took as research object, which was designed and constructed according to the criterion of 65% energy saving of the third stage, utilizing simulation software Dest, which was developed by Qinghua University, energy consumption simulation and economic analysis were done to the building. The results show that compared with the former residence which was built according to the non-energy saving design, the implementation of new design standard for building energy saving can not only achieve better energy saving effect, but also its payback period is short, so the new design standard for building energy saving is worth spreading.


2011 ◽  
Vol 105-107 ◽  
pp. 922-925 ◽  
Author(s):  
Chao He ◽  
Wei Lin Guo ◽  
Yi Yun Huang

To discuss the effect of energy saving of heat-reflective insulation coating on exterior walls of building, the wall temperature change of two test rooms with heat insulation or not in Hangzhou has been monitored in summer, and the heat flux data of east, south and west walls were analyzed. The results indicate that the temperature of outside wall surface with the heat reflective insulation coating is reduced effectively, and the maximum temperature change was about 9, 10°C. There is a positive proportional between the mean daily air temperature and heat gain that the heat gain increases with the mean daily air temperature. By calculating, the higher the air temperature, the more the cooling effect of coating in summer. But the higher the mean daily temperature do not mean that the more heat gain in summer. The result shows the energy saving effect of the heat insulation coating on building wall was very obvious in summer in Hangzhou.


2011 ◽  
Vol 347-353 ◽  
pp. 3015-3019
Author(s):  
Hong Xia Yang ◽  
Chao Zhang

As a systems engineering, the primary factor of building energy-saving is determined, and the essential factor's reciprocity is researched, and then, divides the multi-essential factors into the tower system hierarchical structure for solving matter about the single index evaluation formed synthesis results of multi index. Mathematical model of tower appraisal system, with multi-index, is established based on the system theory and the analytic hierarchy method. And the evaluation model established is applied to the actual construction to carry on the multi-index comprehensive quantification evaluation to confirm model being feasibility and the validity.


2018 ◽  
Vol 225 ◽  
pp. 732-745 ◽  
Author(s):  
Yabin Guo ◽  
Zehan Tan ◽  
Huanxin Chen ◽  
Guannan Li ◽  
Jiangyu Wang ◽  
...  

2020 ◽  
pp. 014459872095628 ◽  
Author(s):  
Keming Hou ◽  
Shanshan Li ◽  
Haining Wang

In recent years, energy efficiency and energy saving strategies have become priorities for energy policy in most countries, and green energy saving buildings has attracted more attention in the worldwide. The use of passive energy saving natural ventilation strategy can improve the effect of building energy saving and improve the internal microenvironment of the building. This paper introduces and analyzes the passive preheating natural ventilation double skin facade (DSF) comprehensively. The influence of the structural parameters of the double skin facade in cold season ventilation on the preheating ventilation effect is discussed on the basis of the discussion and experiment of an actual double skin facade office building. Further, the energy-saving effect of the passive preheating natural ventilation double skin facade is simulated and verified. The effect of structural parameters of DSF in cold season on the thermal performance is summarized. These corresponding results could provide some reference for the buildings in the similar climate regions.


2014 ◽  
Vol 787 ◽  
pp. 159-163 ◽  
Author(s):  
Qian Jin Mao ◽  
Qiu Rui Lv ◽  
Ya Li Wang ◽  
Xiao Yu Ma ◽  
Rui Wang ◽  
...  

To discuss the effect of energy saving of heat-reflective coating on building, the heat gain of exterior building envelope in summer and winter in Beijing has been calculated. The results indicated that the higher the reflectivity of coating, the better the energy saving effect. The energy consumption of roof and different direction walls were analyzed. The energy saving effect on roof is the best, however the effect is not obvious on the east and west walls. The heat reflective coating has no effect on north wall but exhibits effect on south wall. The energy saving effect of brick red heat-reflective coating is not obvious compared with the common brick red coating.


2014 ◽  
Vol 580-583 ◽  
pp. 2461-2465
Author(s):  
Xue Jiang Lai ◽  
Zhi Heng Du ◽  
Zhen Qin Zhang

A training center design as an example, the impact of building energy-saving design on building energy consumption are showed. Energy-saving design options of air conditioning system and refrigerator are given. Lighting power density of the lighting system energy-saving design and the project of energy-saving design are provided.


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