This paper deals with the implementation of lean techniques in a sales warehouse in the manufacturing industry. It highlights efforts to improve warehouse operations by eliminating waste using lean tools such as a value stream map (VSM). A current state VSM exposes waste in an existing system. High order picking time, improper storage, delay in vehicle loading, and low space utilization make the warehouse inefficient. Implementation of a U-shaped flow layout in the warehouse improves order picking time, vehicle loading time, and space utilization. A future state VSM shows the new state of operations before implementation. After lean implementation, considerable improvements were observed in vehicle loading, space utilization, and storage. Thus, the efficiency of warehouse operations is increased, resulting in quicker responses to customers' demands.
The major reason for the depletion of the ozone layer is refrigerants from to refrigeration system, instead of that to hydrocarbons(HC) like liquefied petroleum gas(LPG) is proposed as working fluid in refrigeration system .The hydrocarbons while used as a refrigerant posses many good characteristics such as:-very low cost, nontoxic, zero ozone layer depletion potential, strong compact ability. To safeguard the depleting ozone layer LPG is the perfect option. This system works by the expansion of LPG from its form to gaseous form resulting in decrease of pressure and increase in volume of the LPG. By this the temperature drop occurs and makes a refrigerant effect. This cooling effect can be utilized for refrigeration work. For heating purposes the same gas is again utilized after the cooling cycle.
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