Thermal performance of a double pane window using glazing available on the Mexican market

Aguilar, Javier; Xamán, J.; Álvarez, G.; Hernández-Pérez, I.; López-Mata, C.

doi:10.1016/j.renene.2015.03.063

Cited by 33 publications

(11 citation statements)

References 22 publications

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“…There are several methods to improve thermal performance of glazing units, such as optimizing the air layer thickness of double glazing (Arıcı et al, 2010), filling the cavity between panes with a participating gas (Ron et al, 2014), water (Chow et al, 2011) or aerogel (Takeshi et al, 2015), coating pane surface with low-emissivity materials (Erdem et al, 2015b;Liao et al, 2015;Xamán et al, 2014), and using multiple pane windows (Aguilar et al, 2015;Müslüm et al, 2015aMüslüm et al, , 2015b. Another alternative practice to enhance thermal performance of glazing units is to increase their thermal storage capacity, which offers improved heat transfer control, resulting in reduced energy use and demand, enhanced occupant comfort, and increased operating life of the equipment.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of a PCM-filled double-glazing unit with different thermophysical parameters of PCM

Zheng

et al. 2016

Solar Energy

121

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Application of phase change material (PCM) in the glazing structure can improve its thermal performance by enhancing its thermal energy storage capacity. In this study, the effect of thermophysical parameters of PCM on thermal performance of a PCM-filled double-glazing unit was investigated. The results show that the temperature time lag of the PCM-filled double-glazing unit increases and the temperature decrement factor decreases with the increase of density, thermal conductivity, specific heat capacity, latent heat, and melting temperature of PCM. Increasing density, latent heat, and melting temperature of PCM are effective to enhance the thermal performance of PCM-filled double-glazed units; however, enhancing thermal conductivity and specific heat capacity are ineffective when thermal conductivity is beyond 2.1 W/(m•K) and specific heat capacity is <4460 J/(kg•K).

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Section: Introductionmentioning

confidence: 99%

Thermal performance of a PCM-filled double-glazing unit with different thermophysical parameters of PCM

Zheng

et al. 2016

Solar Energy

121

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“…Thermophysical and optical properties of both glazing systems taken into account in this study are presented in Table 1. 30 The pseudo-transient conjugate heat transfer analysis considers two ODGU configurations: DCC corresponds to the configuration formed by two single clear glass sheets, and DCA corresponds to the configuration formed by one absorbent glass sheet facing to the external environment and one single clear glass sheet facing to the indoor environment. For the complete numerical research and the sensitivity analysis, 5856 computational runs (61 runs per day × 12 design-days × 4 climates × 2 windows) were performed to achieve results such as internal and external heat flux, mass flow rate through the ODGU and total energy gains to the indoor environment.…”

Section: Resultsmentioning

confidence: 99%

“…Thermophysical and optical properties of clear and absorbent glazing systems are listed in Table 1. 30 Solar radiation, air temperature and wind velocity as a function of time for four different locations in Mexico were considered as outdoor climate data in this study. On this subject, the indoor air temperature was kept constant at 24 C and air enters from the bottom of the ODGU at the same indoor air temperature.…”

Section: Methodsmentioning

confidence: 99%

Modelling of an energy-efficient open double-glazing unit for the main climatic conditions of Mexico

Noh-Pat

Gijón-Rivera

Xamán

et al. 2019

Indoor and Built Environment

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The annual thermal evaluation of an open double-glazing unit (ODGU) is presented. The ODGU was modelled using two double-glazing configurations: DCC (clear glass + air + clear glass) and DCA (clear glass + air + absorbent glass). Numerical simulations were performed for the warmest design-day on each month of 2016 in four different climatic conditions in Mexico. The pseudo-transient simulations were carried out using an in-house code based on the finite volume method. To obtain the results, 5856 computational runs were necessary. From the results, the DCA configuration was observed to show the best thermal performance to reduce heat flux that passes through the inside space in the extreme warm dry climate with average reductions of 97 W/m2, followed by the semi-arid climate with 84 W/m2 and the tropical wet and dry climate with 82 W/m2 on a yearly basis. On an annual average, the DCA configuration in the extreme warm dry climate reached almost twice the mass flow rates than those observed in the temperate climate. From the numerical simulations, we have concluded that the use of the low-cost DCA configuration in warm climates was the best solar passive strategy for saving energy in buildings throughout the year.

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“…It is widely accepted that thermal mass is beneficial to buildings with respect to increasing thermal comfort and reducing energy consumption [11]. In order to improve thermal mass of glazing units, there are several methods such as optimizing the air layer thickness of double glazing [12], filling the cavity between panes with a participating gas [13], water [14] or aerogel [15], coating pane surface with low emissivity materials [16][17][18], using multiple pane windows [19][20][21]. Another alternative practice to enhance thermal mass of glazing units is to increase its thermal storage capacity, which offers improved heat transfer control, results in energy use and energy demand reductions, enhanced occupant comfort, and increased equipment operating life.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of a PCM-filled double glazing unit with different optical properties of phase change material

Liu

et al. 2016

Energy and Buildings

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Phase change material (PCM) applied in the glazing structure can decrease building energy consumption and improve indoor thermal comfort by enhancing its thermal energy storage capacity. In the present work, thermal performance of a PCM-filled double glazing unit with different optical properties of phase change material was investigated numerically. The results show that optical properties of PCM play an important role in the thermal performance of double glazing unit filled with PCM, and effect of PCM phase is also strong. Effect of refractive index of PCM on the temperature of double glazing unit is weak, but the effect of extinction coefficient of PCM on the temperature and transmitted energy of double glazing unit is strong. Compared 200m-1 with 5m-1 of extinction coefficient, time to the highest temperature is 30 and 300 minutes earlier in liquid and solid PCM of double glazing unit, and time to the highest transmitted energy is delayed 40 minutes in liquid PCM double glazing unit, but is nearly same in solid PCM double glazing unit.

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Thermal performance of a double pane window using glazing available on the Mexican market

Cited by 33 publications

References 22 publications

Thermal performance of a PCM-filled double-glazing unit with different thermophysical parameters of PCM

Thermal performance of a PCM-filled double-glazing unit with different thermophysical parameters of PCM

Modelling of an energy-efficient open double-glazing unit for the main climatic conditions of Mexico

Thermal performance of a PCM-filled double glazing unit with different optical properties of phase change material

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