R404A与R410A应用于平行流冷凝器的模拟分析比较.pdfVIP

7 1 2 0 0 7 2 REFRI GERA T ION AN D AIR- CON DIT I ON ING 5660 R404A R410A 1) 1) 1) 1) 1) 2) 阚 杰 郝 亮 李 涛 李 强 袁秀玲 董晓俊 1) ( ) 2) ( ) , R134a R404A R4 10A , 3 , , R410A R404A R134a, R134a R404A R4 10A The simulation analysis and comparison of R404A and R410A in parallelflow type condenser Kan Jie1) H ao Liang1) Li T ao1) Li Q iang1) Yuan Xiuling1) Dong Xiaojun2) 1) ( Xi an Jiaotong U nive sity) 2) ( T echnique Cente of T he mo King T anspo t Ref ige ation Co. , Lt d. In A sia) ABSTRACT De ives t he m at hemat ic model of dist ibuted pa amete f o pa allelflow type condense . Ca ies out the simulat ion and analysis of t he heat t ansfe and t he flow cha act e is t ics using the ef ige ant R134a, the new ef ige ant m ix tu e R404A and R410A in pa allel flow type condense . Com pa es the heat t ansfe and f low pa amete s ( heat t ansfe coeff icient and the p essu e d op et c. ) fo these th ee ef ige ants unde both t he same and diffe ent ope at ing condit ions. T he esults show that unde t he ope at ing condit ions fo the automobile ai condit ioning, R4 10A and R404A have bett e f low and heat t ansfe pe fo mances t han R134a. R410 is even bett e than R404A in t he heat t ansfe and f low pe fo mances, so as the new e f ige ant mix tu es using in the m iddle and low t empe atu es, R410A is mo e suit able fo using in the pa allelflow type condense . KEY W RDS pa allelflow type condense ; R134a; R404A ; R410A ; heat t ansf e coeff i cient; p essu e d op