A Brief Overview on Thermal Conductivity of Insulating Materials | Chapter 4 | Technological Innovation in Engineering Research Vol. 6

 

The numerous types of thermal insulating materials, factors that effect thermal insulation, and techniques to measure thermal conductivity are all covered in the current study. In buildings, air conditioning systems use the majority of the energy. Energy conservation is the primary factor that underlies thermal insulation. Because it helps to significantly lower the building's energy consumption, the study of the thermal performance of the structure is essential for offering excellent comfort to the occupants. The materials included include recycled organic waste products like bagasse, paper, corncob, coconut fibre, and coconut shell as well as non-biodegradable products like plastics and synthetic rubber. Natural materials covered include air, wood fibres, sheep wool, leaves, and coconut fibre. These materials' thermal conductivity ranges from 0 to 205 W/moK. Different techniques, including the Guarded Hot Plate method, the Heat Flow method, the Hotwire method, the Laser flash method, etc. can be used to measure thermal conductivity. Also addressed are these techniques. The benefits of using a by-product are its simplicity, little negative effects on health, and energy-efficient manufacture. Utilizing recovered garbage is quicker and less expensive. All techniques for determining thermal conductivity have benefits and drawbacks, as a result, a practical, efficient, affordable, and time-consuming technique must be selected.

Author(s) Details:

N. Sooriyalakshmi,
Department of Civil Engineering, Anna University, Chennai, India.

H. Jane Helena,
Department of Civil Engineering, Anna University, Chennai, India.

Please see the link here: https://stm.bookpi.org/TIER-V6/article/view/7601

Performance Evaluation of Reinforced Geopolymer Concrete as Earthquake Resistant Composite | Chapter 6 | New Approaches in Engineering Research Vol. 15

With the increasing challenges of ground vibrations due to seismic activity and the ever-increasing threat of blast loadings on structures, it has become more than a simple necessity to incorporate robust design strengths into structures without compromising serviceability life. When structural elements' ability to absorb and disperse energy through post elastic deformations subjected to multiple cycles of these loading is naturally incorporated at cheap cost, their performance is well acknowledged. The single controlling property for a structural element's healthy performance is its flexural element's ductility. Although several elements contribute to the ductility of Reinforced Geopolymer Concrete (RGPC), low calcium-based fly ash and GGBS have chemical proportions that allow RGPC to generate significant ductility when mixed in an intelligent way that meets structural and economic requirements. The impact of low calcium fly ash, GGBS, River sand, M-sand, Steel Grade, manufactured fibres, and natural fibres on RGPC ductility is investigated in this study using load testing 51 with reinforced flexural elements. Similar tests on the flexural ductilities of Ordinary Portland Cement based flexural elements conducted by other researchers show that Reinforced Geopolymer Concrete Structural Elements are extremely comparable and appreciated.

Author(S) Details

N. B. Mahantesh
Department of Civil Engineering, Alliance College of Engineering and Design, Bengaluru, India.

View Book:- https://stm.bookpi.org/NAER-V15/article/view/4025

Solid-state Fermentation in the Bioavailability of Nutrients in Rice Bran | Chapter 15 | Recent Progress in Microbiology and Biotechnology Vol. 5

 Rice bran, a by-product of grain processing, is nutrient-dense and high in bioactive compounds. Rice bran, on the other hand, has some disadvantages in terms of application, such as hydrolytic and oxidative enzyme activity, median digestibility, and antinutritional factors. Fermentative processes, on the other hand, seem to have the potential to effectively reduce these impacts. The aim of this chapter is to assess the benefits of rice bran for human consumption, as well as the benefits of fermentation on nutrient composition. The benefits of fermentation are evident in recent studies in the literature in increasing nutrient bioavailability, mitigating antinutritional factors, and increasing digestibility, rendering biomass a promising alternative in human nutrition.

Author (s) Details

Anelise Christ Ribeiro
School of Chemistry and Food, Federal University of Rio Grande, Brazil.

View Book :- https://stm.bookpi.org/RPMB-V5/article/view/878