Análise da transferência de calor em paredes compostas por diferentes materiais

Specht, Luciano Pivoto; Borges, Pedro Augusto Pereira; Rupp, Ricardo Forgiarini; Varnier, Rosane

doi:10.1590/s1678-86212010000400002

Cited by 5 publications

(2 citation statements)

References 7 publications

(4 reference statements)

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“…The analysis of Specht et al [32] on heat transfer in composite walls with different configurations, using ceramic brick, laying mortar, coating mortar and, in some cases, expanded polystyrene can be observed. It denotes a better thermoeconomic performance on the wall that has greater thickness of bricks, insulated in the outside with polystyrene and wrapped with coating mortar.…”

Section: Others Applicationsmentioning

confidence: 92%

The Importance of Thermal Insulation: Characteristics, Properties and Applications

Grosso¹,

Freitas²

2017

IJERMT

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Abstract-hermal insulation is used to ensure that there is no loss or gain of heat in a medium, and therefore must be very well chosen considering the properties, applications and costs. It is used for protection, prevention, comfort and economy. The choice of insulation, the thickness and the method of application are extremely important to obtain good technical and economic results. The objective of the present article was to compile characteristics and properties of thermal insulation, exposing its applications in thermal products companies. Thus, information and research results were collected from articles, and grouped into insulation originating from animal, synthetic, vegetal, animal, vacuum compounds and gases. A questionnaire was also applied to manufacturers and users of thermal insulation, reporting on each insulation and its applications. The differences of each thermal insulation, its advantages and applications are noted. There is no insulator that fully has all the advantageous properties and characteristics. Therefore, the choice of the insulation should be thorough, opting for one which shows greater propensity to the desired application.

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Section: Others Applicationsmentioning

confidence: 92%

The Importance of Thermal Insulation: Characteristics, Properties and Applications

Grosso¹,

Freitas²

2017

IJERMT

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“…According to SPECHT et al (2010); DOEBBER (2010); PERALTA (2006), the reduction of the environment RH is related to the high air temperature and the solar radiation exposition in an external wall. This fact happens gradually, with the increase of air temperature at the beginning and end of the day, with a maximum peak temperature at 3 pm.…”

Section: Analysis In the Winter Periodmentioning

confidence: 99%

Thermal Environment of Table Grape Packing Houses in the São Francisco Valley

et al. 2017

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ABSTRACT:The aim of this study was to characterize the thermal environment of the sorting and packing sectors of small, medium and large packing houses in the São Francisco Valley, Northeast of Brazil. Micrometeorological data were monitored every 15 minutes for 20 days during winter 2014 and summer 2015. The parameters evaluated were air temperature ( o C), relative humidity (%) and radiant thermal load, RTL,(W/m 2 ). External environmental data were obtained from weather stations close to the packing houses. The data obtained show that packing houses minimum and maximum temperatures were reached at 6am and 3pm, respectively, during winter and summer. Both seasons had air temperatures above 20°C, relative humidity below 90% and radiant thermal load above 450 W/m 2. The construction materials that had the highest energy transmissions were the roofs. Metal roofs had the worst thermal conditioning, resulting in maximum internal air temperatures of 32.7°C and minimum relative humidity of 40.9% at 3pm, during summer. According to the results, thermal environments of sorting and packing sectors proved to be inadequate for processing table grapes, mainly during summer. These packing houses should be modified to reach the optimal thermal environment, considering the regional climatic conditions.

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