USAGE OF BIODEGRADABLE NATURAL INSULATION IN DOMESTIC REFRIGERATOR

Abstract

To maintain ecological balance with industrial growth is prime motive of any nation. All nations are
concerned with impact on environment due to industrialization. Everyone tries to find out way for alternate solution or
technology to improve the environment. All new development and modification in existing technology primarily focused
its effect on environment. Refrigerator industry uses insulation to prevent heat in leak. Earlier refrigerator manufacturer
were using glass wool, but due to side effect of glass wool, refrigerator industries are using polyurethane foam (PUF) as
an insulating material. Polyurethane is non biodegradable material. Though it is non toxic but it pollutes the
environment. Perlite is the biodegradable material which is available naturally through crude perlite rock. It is light in
weight and has low thermal conductivity. Perlite can be used as an insulation material in refrigerator.