International Journal of Agriculture and Food Science Technology. ISSN 2249-3050 Volume 5, Number 3 (2014), pp. 171-178 © Research India Publications http://www.ripublication.com Design of Cold Storage Structure For Thousand Tonne Potatoes Priyanka Sakare Department of post harvest process& food engineering, College of technology, G.B. Pant University of agriculture & technology, Pantnagar, Uttarakhand, INDIA Abstract Refrigeration has been the principal known method of successful storage of fresh fruits and vegetables to retain their freshness and flavour. When fruits and vegetables are harvested, they are cutoff from their source of water and nutrition and soon start to deteriorate. They lose weight, texture, flavor, nutritive value and appeal. Both time and temperature are important factors in post-harvest product deterioration .Cooling the harvested product control the rate of quality loss by slowing the rate of respiration. The warmer the temperature, the faster the deterioration and the shorter the storage life; conversely, the cooler the temperature, the slower the deterioration and the longer the storage life. The more quickly the product is cooled, the longer it will remain marketable. This paper deals with different aspects of design of cold storage and includes all standard refrigeration principles and heat load factors which are normally considered in a cold storage design. This design is hypothetically intended to serve as a guide for future fabrication and erection. Keyword: refrigeration, refrigeration principle, heat load, design 1. Introduction Storage is the art of keeping the quality of agricultural materials and preventing them from deterioration for specific period of time, beyond their normal shelf life. Cold storage Control ripening retards aging, softening, texture and color change, retards moisture loss, wilting, microbial activity, spoilage, sprouting and undesirable growth. Availability of proper cold storages are important for preserving perishable commodities like milk, meat, eggs, vegetables, fruits, ornamental flowers and other