christian louboutin Transport of perishable goods

In the transport of perishable goods research and analysis in the shrinkage

Loading of goods the same case, the cooling time and the corresponding dry consumption is the same. With the total transportation time, in the cooling of dry goods consumption will be even greater. Table 9,[link widoczny dla zalogowanych], l-fold extension of transit time, the total shrinkage rate increases 1. A pair of%, that is, shrinkage rate increased by 44%. Thus, to speed up delivery of goods is to reduce the rate of consumption of dry goods in transit is an important measure. 3 / 1999 of 3.3.10 refrigeration refrigerated trucks with ice shipment, cargo or vehicle 4, conclusions and recommendations lglltd-ice is not within the folder. ... ... A table of 10 plus shipping refrigerated trucks Jin fruits, vegetables, consumption of dry conditions when the average heat transfer coefficient of the body / V ~ / (· K1O45O.360450.45 body brag gas / / hl0040l00l00 interior relative humidity /% 85,859,292 of goods or folder inside the ice / kg0044OO6600 dry cooling consumption of Q / kg1051288.262854l】 40 cool, asked / h49.8541.8548594838 dry after cooling consumption of l ∞ .85105.095 O76508l General consumption / kg205.97193.34793O6l95 cooling consumption during the dry percentage of the total consumption of dry /% share 51.04456535991798 consumption goods during the carriage of dry weight ratio /% 0.940.88O.36O28 average daily consumption of dry ratio /% 0.0940c Hu O. O36OO28 Table 10 refrigerated trucks of ice, dry transport of several points made a calculation of consumption. The first situation: Although the performance of ice as mechanical refrigerator car refrigerator car, the transport of dry consumption than mechanical refrigerator car much lower, Table 10 shows, only consumption of transport in the dry mechanical refrigerator car, 28%; and when the ice refrigerator car bodywork and mechanical insulation and air tightness,[link widoczny dla zalogowanych], like refrigerated trucks, the transportation of dry consumption is lower. This is because the natural convection of air inside the vehicle, the air cargo flow through the surface wind speed is low, and thus slow the evaporation of water. So shrinkage to less. The second situation: When the puzzle in the car ice ice wall or goods in the folder,[link widoczny dla zalogowanych], because the ice can provide additional cooling source leaving slightly faster cooling rate, more importantly, makes the ice melt water increases the humidity inside the car, so that consumption of a large dry goods is reduced. only 38% of the time with no ice. (mechanical refrigerated trucks transport the ice wall is generally not the vehicle or cargo in the folder puzzle ice). Although the ice refrigerated trucks transport the total consumption of less dry, but cool a very long time, it is likely to cause rot of goods, the consumption of a greater loss than the dry. In other words, with the ice refrigerated trucks transport perishable goods, the main problem is not shrinkage, but rather how to make the goods as soon as possible down to the appropriate temperature, to prevent the goods spoiled. * 56 * Refrigeration 3/19994.1 Conclusion (1) Despite a slowdown of total transport time, asked only about 10%, but the consumption of dry goods, the average asking the total dry more than 50% of consumption; transport of goods to ask about the average consumption of total dry weight of the goods 3% of the total daily average 0_3%. (2) consumption of the main factors of dry cargo temperature and cooling rate of the initial , the goods exposed area. vehicle relative humidity, and cooling equipment,[link widoczny dla zalogowanych], cooling rate,[link widoczny dla zalogowanych], the flow rate of air inside the vehicle, asked the transportation of goods and so on. (3) According to preliminary estimates, each year only in the railway transport refrigeration of fruits, vegetables consumption is a stem up to 3 tons. Direct economic loss of nearly 1 million. 4.2 The proposals suggest the department concerned to carry out in-depth research project on transportation of dry goods in the actual measured consumption and the relative ratio with the theoretical calculation to study measures to reduce the shrinkage of various technical and economic effects. focus on resolving the following problems: ① the right to determine the exact value of the goods exposed area and how to take reasonable measures to reduce packaging and cover the exposed area; ② how to maintain the appropriate vehicle humidity, in particular, to reduce the consumption of dry humidification measures should be taken; ③ refrigerated trucks in the design, manufacture and application of how to make the appropriate vehicle to maintain a stable temperature, Taiwan, configuration management, and refrigeration equipment refrigerator temperature controlled device: ④ accelerate the transport of perishable goods, the speed and shorten the time of the Express Transportation Organization of work; ⑤ strict inspection and supervision of cargo temperature, pre-cooling of the importance of strengthening the promotion, as soon as possible fruit and vegetable stand set up pre-cooling. References [ ,],[, break Yang Zhong Zhi, Li Shaorong, perishable food storage techniques. China Railway Press, 1998 ($)

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