Study on moisture condensation on the interior surface of buildings in high humidity climate

You, Shijun; Li, Wenqingping; Ye, Tianzhen; Hu, Fan; Zheng, Wandong

doi:10.1016/j.buildenv.2017.08.041

Cited by 42 publications

(25 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most of these problems, due to water vapor condensation, occur in buildings. In this context, research has clearly highlighted the connection between surface condensation and mold growth in buildings [1][2][3][4]. Furthermore, mold development is a major human health concern, evidently confirmed nowadays [5].…”

Section: Introductionmentioning

confidence: 89%

“…Gong et al [29] have also employed the CFD technique in order to examine the problem of moisture condensation on building elements but this has been only fulfilled by calculating the temperature differences between the inner wall surface and the air dew point near the wall. The same elementary method relying on the dew point has been adopted in study [30] -also based on CFD simulations, in order to determine the risk of moisture condensation on the interior surface of buildings in high humidity climate. Ma et al [31] have developed a theoretical model for predicting wall condensation in rooms.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A full-scale experimental study concerning the moisture condensation on building glazing surface

Nguyen

Teodosiu

Kuznik

et al. 2019

Building and Environment

View full text Add to dashboard Cite

Superficial condensation phenomena often occur on the glazed elements of buildings. As a result, the aim of this study is to put forward an experimental approach to assess the condensation rate on building glazing surface for full-scale room tests under realistic conditions. The proposed method for condensation quantification is applied in this work for surface condensation on a cold glazing (2.90 m x 2.30 m) within a ventilated test room (6.20 m x 3.10 m x 2.50 m). We first describe the full-scale test cell, focusing then on the experimental apparatus employed for the condensation study. This is followed by the description of the methodology for the condensation rate quantification. The approach is based on image processing techniques, using condensation pictures. This allows also to reveal the mechanisms behind the condensation appearance and growth. On the other hand, the experimental data achieved by this method are compared with theoretical results based on condensation rate and heat transfer coefficient correlations available in the literature. An overall difference of up to 18% between the measured results and the theoretical results was found for the condensation rate. Consequently, the method proposed in this work leads to promising results concerning the condensation rate quantification on cold glazing within full-scale enclosures.

show abstract

Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

A full-scale experimental study concerning the moisture condensation on building glazing surface

Nguyen

Teodosiu

Kuznik

et al. 2019

Building and Environment

View full text Add to dashboard Cite

show abstract

“…The heat and mass transfer through the building envelope directly affects the main parameters of indoor thermal comfort, such as air temperature, air relative humidity, radiant temperature, etc. Thereby, it affects the thermal sensation for the occupants of the area of energy balance, such as their skin moisture and tactile sensation [8,14,15].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have shown that a building's energy consumption and indoor comfort are inseparable; the goal is to minimize the energy consumption conditions to ensure acceptable indoor thermal comfort [13,[16][17][18]. Especially in the severely cold and cold regions in northern China, the heat transfer and energy consumption in building envelopes account for a large proportion of a building's energy consumption, which is an area of great energy-saving potential [14]. To reduce building energy consumption only from the optimization of the system form, the improvement of the system efficiency [18], and the use of new materials but ignore the heat and moisture coupling effect on building energy consumption is not conducive to the implementation of fundamental building energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Simulation Research on the Effect of Coupled Heat and Moisture Transfer on the Energy Consumption and Indoor Environment of Public Buildings

Cui

Shao

et al. 2019

Energies

View full text Add to dashboard Cite

A building envelope is a multi-layer porous structure. It transfers heat and moisture to balance the indoor and outdoor temperature difference and water vapor partial pressure difference. This is a typical coupled heat and moisture migration process. When the space is filled with moist air, water or ice, it will directly affect the thermal properties of the material. With respect to moisture coming through the wall into the indoor building, it will also affect the indoor environment and the energy consumption due to the formation of latent heat. However, the moisture transfer process in the building envelopes is not taken into account in the current conventional thermal calculation and energy consumption analysis. This paper analyzes the indoor thermal and humidity environment and building energy consumption of typical cities in Harbin, Shenyang, Beijing, Shanghai, and Guangzhou. The results show that it is obvious that the coupled heat and moisture transfer in the building envelopes has an impact on the annual cooling and heating energy consumption, the total energy consumption, and the indoor thermal and humidity environment. The geographical location of buildings ranging from north to south influences the effect of coupled heat and moisture transfer on the annual energy consumption of the building, moving from positive to negative. It is suggested that the additional coefficient of the coupled thermal and moisture method can effectively correct the existing energy consumption calculation results, which do not take the consumption from the coupled heat and moisture in the building envelopes into account.

show abstract

“…This phenomenon, when associated with low surface temperatures, increases the risk of mold growth caused by moisture condensation, which often results in the deterioration of building materials. You et al [23] studied moisture condensation on the inner surfaces of a building, caused by air infiltration in a highly humid climate. They showed that the effects of the outdoor air temperature, humidity ratio, and wind speed have a significant impact on the start time, duration, and magnitude of moisture condensation.…”

Section: Introductionmentioning

confidence: 99%

3D Dynamic Simulation of Heat Conduction through a Building Corner Using a BEM Model in the Frequency Domain

2019

View full text Add to dashboard Cite

This paper sets out a three-dimensional (3D) boundary element method (BEM) formulation in the frequency domain to simulate heat transfer through a point thermal bridge (PTB) at a corner in a building envelope. The main purpose was to quantify the dynamic effect of a geometrical PTB in terms of distribution of temperatures and heat fluxes, which is useful for evaluating moisture condensation risk. The numerical model is first validated experimentally using a hot box to measure the dynamic heat behavior of a 3D timber building corner. The proposed model is then used to study the dynamic thermal bridging effect in the vicinity of a 3D concrete corner. Given the importance of the risk of condensation, this study looks at the influence of an insulating material and its position on the temperature and heat flux distribution through the PTB under steady state and dynamic conditions.

show abstract

Study on moisture condensation on the interior surface of buildings in high humidity climate

Cited by 42 publications

References 19 publications

A full-scale experimental study concerning the moisture condensation on building glazing surface

A full-scale experimental study concerning the moisture condensation on building glazing surface

Simulation Research on the Effect of Coupled Heat and Moisture Transfer on the Energy Consumption and Indoor Environment of Public Buildings

3D Dynamic Simulation of Heat Conduction through a Building Corner Using a BEM Model in the Frequency Domain

Contact Info

Product

Resources

About