ﺗﺤﻠﻴﻞ اﻧﺮژي، اﮔﺰرژي و اﻗﺘﺼﺎدي ﻳﻚ ﺳﻴﻜﻞ ﺑﻬﺒﻮد ﻳﺎﻓﺘﻪ ﺗﺒﺮﻳﺪ ﻫﻴﺒﺮﻳﺪي آﺑﺸﺎري ﺟﺬﺑﻲ-ﺗﺮاﻛﻤﻲ

Energy, exergy and economic analysis of an improved hybrid cascaded compression-absorption refrigeration system

در اﻳﻦ ﻣﻘﺎﻟﻪ، اﺳﺘﻔﺎده از ﻳﻚ ﻛﻤﭙﺮﺳﻮر ﻛﻤﻜﻲ، ﺑﻪ ﻣﻨﻈﻮر ﺑﻬﺒﻮد ﻋﻤﻠﻜﺮد ﻳﻚ ﺳﻴﻜﻞ ﺗﺒﺮﻳﺪ آﺑﺸﺎري ﺟﺬﺑﻲ-ﺗﺮاﻛﻤﻲ ﻣﻮرد ﺑﺮرﺳﻲ ﻗﺮار ﮔﺮﻓﺘﻪ اﺳﺖ. ﺑﻪ اﻳﻦ ﻣﻨﻈﻮر ﻛﻤﭙﺮﺳﻮر ﻳﻚ ﺑﺎر ﺑﻴﻦ ژﻧﺮاﺗﻮر و ﻛﻨﺪاﻧﺴﻮر و ﻳﻚ ﺑﺎر ﺑﻴﻦ ﻛﻨﺪاﻧﺴﻮر آﺑﺸﺎري و ﺟﺎذب ﻗﺮار داده ﺷﺪه و ﻋﻤﻠﻜﺮد ﺳﻴﻜﻞ از ﻣﻨﻈﺮ اﻧﺮژي، اﮔﺰرژي و اﻗﺘﺼﺎدي ﺑﺎ ﺳﻴﻜﻞ ﺗﺒﺮﻳﺪ ﺳﺎده آﺑﺸﺎري ﺟﺬﺑﻲ- ﺗﺮاﻛﻤﻲ ﻣﻘﺎﻳﺴﻪ ﺷﺪه اﺳﺖ. ﻧﺘﺎﻳﺞ ﻧﺸﺎن ﻣﻲ دﻫﺪ ﻛﻪ اﺳﺘﻔﺎده از ﻛﻤﭙﺮﺳﻮر ﻛﻤﻜﻲ ﺑﻴﻦ ژﻧﺮاﺗﻮر و ﻛﻨﺪاﻧﺴﻮر، ﺿﺮﻳﺐ ﻋﻤﻠﻜﺮد و راﻧﺪﻣﺎن ﻗﺎﻧﻮن دوم ﺳﻴﻜﻞ را ﺑﻪ ﺗﺮﺗﻴﺐ 68 % و 24 % اﻓﺰاﻳﺶ داده و ﻫﺰﻳﻨﻪ ﻫﺎي ﺳﺮﻣﺎﻳﻪ ﮔﺬاري ﻛﻠﻲ ﺳﻴﺴﺘﻢ را 31 % ﻛﺎﻫﺶ ﻣﻲ دﻫﺪ. در ﻣﻘﺎﺑﻞ، ﻗﺮارﮔﻴﺮي ﻛﻤﭙﺮﺳﻮر ﺑﻴﻦ اواﭘﺮاﺗﻮر و ﺟﺎذب ﻣﻮﺟﺐ اﻓﺰاﻳﺶ 79 درﺻﺪي ﺿﺮﻳﺐ ﻋﻤﻠﻜﺮد، اﻓﺰاﻳﺶ 31 درﺻﺪي راﻧﺪﻣﺎن ﻗﺎﻧﻮن دوم و ﻛﺎﻫﺶ 40 درﺻﺪي ﻫﺰﻳﻨﻪ ﻫﺎي ﺳﺮﻣﺎﻳﻪ ﮔﺬاري ﻛﻠﻲ ﺳﻴﻜﻞ ﻣﻲ ﮔﺮد

In this paper, improving the performance of a compression-absorption refrigeration system employing a booster compressor is investigated based on energy, exergy and economic analysis. Two position for the booster compressor are proposed (between the generator and the condenser, or between the cascade condenser and the absorber). the results show that using a compressor between the generator and the condenser improves the COP and the second law efficiency by 68% and 24% respectively and enhances the capital cost of the cycle by 31%, while using the compressor between the evaporator and the absorber can increase the COP and the second law efficiency of the cycle by 79% and 31%, respectively and decrease the cost of the cycle by 40%. Furthermore, the effect of compressor pressure ratio,condensor temperature, generator temperature, cascade condenser temperature and compression section evaporator temperature on thermodynamic and economic performance of the cycle is analyzed. The results indicate that the two hybrid systems can improve the performance of the cycle and locating the compressor between the evaporator and the absorber can show better performances.