Heat Exchanger (Shell and tubes) by sujan kharel.. Boiler(Introduction,classification and it's types) by sujan kharel Dining Etiquette -->American and continental style of dining ...presented by sujan kharel,gokarna basnet & lekha. The hydraulic break is an arrangement of breaking Geothermal energy -ppt. by sujan kharel(Ansal university) Geothermal energy -ppt. by sujan kharel(Ansal university) 
