Thermal characterization of materials used in rural housing constructions in Ayacucho, Peru

Abstract

The thermal conductivity of construction materials used in rural areas of Ayacucho has been measured. For this purpose, a thermal conductivity meter for material sample plates of a size of 12 cm x 12 cm has been designed and built, based on “ASTM C177 - Standard Test Method for Steady-State Heat Flux”. The effect of the thickness of the samples and of the heating power of the central plate on the measurement results was evaluated, resulting that best results were obtained with samples less than 2 cm thick and heating powers of less than 3 W. The thermal conductivities obtained vary between 0.148± 0.005 W.m-1.K-1 for “tornillo” wood, and 0.663 ± 0.010 W.m-1.K-1 for red clay from Quinua.

Aprovechamiento del estiércol de alpaca e ichu para la producción de briquetas como fuente de energía calorífica en Arequipa

“…En el 2014, en la Universidad de San Cristóbal de Huamanga se realizaron mediciones de conductividad térmica de materiales usados en edificaciones de la región de Ayacucho mediante una la elaboración de un medidor de conductividad térmica (MTC) usando el método de placa caliente con guarda basado en la norma ASTM C177 [4]. Una de las muestras evaluadas fue madera tornillo, el estudio consistió en realizar las medidas a distintos espesores de la muestra obteniendo como resultado una conductividad promedio de 0,141 W.m -1 .ºC -1 ± 0,02 W.m -1 .ºC -1 para un rango de espesores de 0,56 cm a 3,14 cm [5].…”

The Development of a Highly Insulated, Thin Wall Assembly for Canadian Residential Construction

“…[36]. This method is very commonly used for the heat flux and thermal conductivity testing of both homogeneous building materials (both insulation materials and structural materials) [38]- [40], as well as the testing of simple assemblies and composites [41]- [43]. The guarded hot plate present at Carleton University's facility is configured to test only homogeneous samples.…”