Essays on Isotherm

Chapter 1

Introduction

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources. Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that ...

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources. Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that are ...

Abstract

This paper clearly presents and defines the numerical study on how hollow building block operates to suppress the convectional currents and reduce the amount of heat flux transferred across the petition of the building wall. The configuration and weight of these blocks have made them to fully be utilized in building the facades. The air filled cavities (hollow cells) together with the small cross-sectional area geometry provides an appropriate elevation for the building block. The hollow polythene bars inserted in this bricks also helps to reduce the heat by about 36% depending on the petition number (Mejad 2006). ...