International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) | IJMER | ISSN: 2249–6645 | www.ijmer.com | Vol. 5 | Iss.1| Jan. 2015 | 53| Optimization of Skin Condenser Using Bundy Tube In Place Of Copper Tube D. Sasidhar Reddy 1 , Dr. K. Hemachandra Reddy 2 , Kumari D. Jyothi 3 1 Department of Mechanical Engg., JNTUA College of Engineering, Anantapur - 515002, Andhra Pradesh, India. 2 Professor&Registrari/c, Department of Mechanical Engg., JNTUA College of Engineering, Anantapur – 515002, Andhra Pradesh, India. 3 Lecturer, Department of Mechanical Engg., JNTUA College of Engineering, Anantapur-515002, Andhra Pradesh, India. I. INTRODUCTION CHEST-TYPE FEEZERS: A chest freezer is nothing but a storage unit for frozen food such as meat, poultry, fish, prawns, some vegetables and some frits. The chest type freezer has certain advantages. Since cold air is heavier than warm air, the very cold air in a chest-type freezer does not spill out each time the lid is opened. This stops a considerable amount of moisture from entering the cabinet. Fig 4.1 CHEST FREEZER 425L Fig. 4.1 The parts of a chest-type freezer: 1—polyurethane foam insulation, 2—wrap-around steel cabinet, 3—baked-on enamel finish, 4— self-adjusting lid, 5—spring-loaded hinges, 6—vinyl lid gasket, 7— safety lock and self-ejecting key, 8—lift-out wire baskets, 9—temperature-control knob, 10—automatic interior light, 11—power-on light, 12—vertical cabinet divider, 13—defrost water drain, 13—sealed compressor, and 15—wrap-around condenser. There is little air change when the cabinet opened. To make chest-type freezers more convenient to use, they are usually fitted with baskets that maybe lifted out to provide access to frozen food packages near the bottom. Also, the lids usually have a counterbalancing mechanism, which makes them easy to open. The chest- type freezer provides the most economical type of food freezing mechanism. Chest-type freezers require a manual defrost. Defrosting may be accomplished best by unplugging the condensing unit. Then remove the stored food and place either an electric space heater or a pail or two of hot water in the cabinet. With the cabinet closed, the ice will soon drop water from the evaporator surface and will be easy to remove. These freezers have a drain, which makes removing the moisture from the cabinet quite easy. Remaining moisture must be wiped out of the cabinet. Cabinets are available in various capacities. Height and width are quite uniform. However, the length will vary with the capacity of the freezer k. ABSTRACT: The condenser is an important device used in the high pressure side of a refrigeration system. Its function is to remove heat of the hot vapour refrigerant discharged from the compressor. The main objective of this work is to carryout experimental investigation on Bundy Condenser coil used in Skin Condenser for a Deep Freezer of 425 liters capacity; it is proposed to optimize the length of the condenser coil. R – 134A will be used as refrigerant for the proposed investigation.