Bøger af Avesahemad Husainy

This study investigates the impact of incorporating Al2O3 nanoparticles into a ducted air-conditioning system on its performance. Different mass fractions of nanoparticles are dispersed in the refrigerant to evaluate their influence on heat transfer and overall system efficiency. Experimental tests are conducted to measure key parameters such as cooling capacity, coefficient of performance (COP), and pressure drop across the system. Results indicate that increasing the mass fraction of Al2O3 nanoparticles enhances heat transfer while slightly elevating the pressure drop. Optimal performance is observed at specific nanoparticle concentrations, suggesting potential improvements in energy efficiency and cooling effectiveness for ducted air-conditioning systems through nanoparticle augmentation.

Turmeric (Curcuma Longa) the ancient and sacred spice of India known as ¿Indian Saffron¿ is an important commercial spice crop grown in India. Turmeric is widely used as a food colorant and has been reported to have antioxidant, anti-inflammatory, anti-mutagenic and anti-cancer properties. It is also known as the ¿Golden Spice of life¿ and is one of the most essential spices used as an important ingredient in culinary all over the world.Solar energy a form of sustainable energy has a great potential for wide variety of applications because it is abundant and accessible, especially for countries located in the tropical region. Solar drying of fruits and vegetables overcomes the drawbacks of traditional open sun drying such as, contamination from dust, insects, birds and animals, lack of control over drying conditions, possibility of chemical, enzymic, and microbial spoilage due to long drying times. Solar drying is advantageous over normal convective dryers like hot air dryer, which requires enormous fuel and energy cost. Due to abundant availability of solar radiation attention has been gradually diverting to utilize this renewable energy for a number of applications.