fred perry italia Use of low waste heat of two-sta

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Use of low waste heat of two-stage ammonia absorption refrigerator and its performance in the ...

Production of the required temperature to drink less, and is divided into two different temperature levels of evaporation temperature, heating temperature is also relatively low, in the case of the cooling water temperature is high, there is no possible single-stage system, which selected three absorption . Occurrence of such a system level, the process shown in Figure 6, taking into account actual production use, this device can also cool the water below 12 production maintenance and a cooling capacity of 20 ℃ wish to run the actual situation to be in summer, the tower and the tower of the entropy. Few can be summarized between absorber according to the need for exchange, and finally, high and low voltage generator using two sets of steam heating and hot water heating equipment for r the production of heat supply side based on the specific situation, you can switch between each other. (C) economically using low grade waste heat l glass ammonia absorption refrigerator using low grade waste heat and save enough bit of energy commodities - energy for the purpose of an orderly cooling system, power-saving benefits of its practice has been reflected in the production out. Present. Energy of this type of economic evaluation is not yet uniform, I only the refrigeration system is compared with the compression system, the results shown in Table 3. Flowers that absorption compression project : Annual consumption box Gan Gan Kim consumption of energy in the steam I8800 tons】 880,000 yuan lao core resistance I1.62 million kilowatts of electricity l4648 million 17.76 million kwh 444,000 yuan Bank charges 06,[link widoczny dla zalogowanych],600 yuan oil 3 Taiwanese coral kg total 304,200 yuan 450,600 yuan investment costs 466,000 yuan 260,800 yuan 1. Electricity price by 0.25 yuan / kWh, low pressure steam by heat lO yuan / ton. Preparation 2. $ 000 hours of annual operation base. Depression 3. Meters, in both operating costs like maintenance costs. 4. Cooling water consumption has been converted into eight power consumption meter. -42 * We can see from Table 3: absorption compared with the compression,[link widoczny dla zalogowanych], (1 investment costs consume more than 205,200 yuan: (2) operating cost savings of 146,400 yuan per year. To calculate the annual consumption, absorption ratio compression of about 1.4 years more than investment costs can be recovered. from the above comparison shows, the use of low heat of absorption chillers and other low-temperature waste heat utilization device, the initial investment is relatively large. The total investment cost of absorption chillers about 70% of the cost of materials, steel consumption more, but all are carbon steel, and with less precision manufacturing technology and processing. Its effect is a significant saving from the saving of the barriers to Ba i Board consideration, both heat and low chilling requirement of industrial enterprises,[link widoczny dla zalogowanych], especially for petroleum, chemical, fertilizer and food processing enterprises, the adoption of this refrigerator is the use of waste heat is very effective means of energy conservation. IV, Conclusion 1. use of industrial waste heat Two-stage steam absorption chiller ammonia test device of the main thermal performance similar to similar devices with foreign 2.. Two-stage ammonia absorption chillers can adapt to a wide range of cooling load. to look at the test device, the cooling load at rated load range of 35 ~ 120% change, and children almost constant thermal coefficient of 3.. when the winter temperature in the lO ℃ cooling water below, the device can be changed to leather-level operation, the cooling capacity can reach the rated load 60 ~ 70%, while the thermal coefficient will be increased about double. 4. in the test device obtained large amounts of data and performance for industrial-scale production plant to provide a sense sub-basis, and applications in the industrial development has been further confirmed. 5. using two-stage low heat in the cold ammonia absorption refrigerator and cold drink production use is feasible,[link widoczny dla zalogowanych], it runs smoothly, 'simple, reliable, power saving is an effective tool, it runs successfully. for the future ammonia absorption refrigeration unit to provide the experience for this area. For the design with two evaporation temperature, cold blue refrigerator to 348.8 kilowatts of it, by rough calculation, it is of the same cooling conditions compared compression refrigeration equipment, initial investment of more than p20 million, but its annual operating costs savings of about 14 million, if the 8,000 hours per year, more consumption of their investment cost of about 1.4 years H recyclable. - References C1} R. Plank, HandbuchderKaltemchnik, SiebenterBand.Sorptions--Kahernasehinen1959. [2) G. C. H, RefrigerationwithWasteHeat, ASHKAEJ. Vol, 18. No. 12Dee. 1976P21_25 (,) l bamboo Yuan Lin, Yang Zongwen, q with a computer on the two-stage ammonia absorption refrigeration system. Fourth base state refrigeration and heat pump conference proceedings, 19853

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