Flexible balloon biogas plant having capacity 15 m3 based on kitchen waste with total digester volume of 25 cum was designed and developed. The digester was fabricated from special three layer reinforced fabric namely high tenacity rubberized nylon fabric coated with hypalon on the outer and neoprene on the inner surface of digester. The cylindrical shaped flexible balloon digester with 2.5 m diameter and 5 m length was designed considering the pressure developed inside and other safety factors as a closed thin cylindrical pressure vessel. The plant was installed in the premises of Sainik School, Chittorgarh. The meal for 600 persons including students and staff was prepared daily in the school mess. Kitchen waste generation was about 250 kg daily.

Twin Wheel Hand Hoe is an intercultural tillage implement which is used in arable field and garden in agriculture. Twin Wheel Hand Hoe has a huge capacity for controlling weed and intercultural preparation. Additionally Twin Wheel Hand Hoe has a capacity to aerate the soil. The drawings of various components and assemblies of twin wheel hand hoe were prepared utilizing CAD CAM facilities and fabrications of component were done as per the drawing in the researcher work.

In order to achieve better crop protection against the background of increasing pesticide use, deleterious effects of residues on environment, keeping level with fast changing agricultural scenario of the country, the more efficient and sophisticated equipment's are necessary to introduce in agriculture. Therefore, a tractor mounted hydraulic boom sprayer for field crop spraying was designed and developed. The performance of the sprayer was evaluated to study the effect of different nozzle pressure and nozzle discharge levels on the uniformity of the spraying.