tube in tube heat exchanger calculation

{"title":"Baffle Plate U Tube Bundle Heat Exchanger For Industrial Refrigeration","imgUrl":"https:\/\/img.ismap.com\/nimg\/2b\/03\/377b04dd4122619fe555c06118d3-200x200-1.jpg","attrs":{"Brand Name":"GREEFOUN","Model Number":"QXU125S10","Minimum Order Quantity":"1piece","Delivery Time":"within 15days","Certification":"CE","Place of Origin":"CHINA","Payment Terms":"T\/T, L\/C, Western Union","Supply Ability":"100000pieces\/year","Packaging Details":"Standard export package","Refrigerant":"R22\/R134a\/R407C\/R410A","Product":"Evaporator, Condenser","Tyoe":"Shell and tube type","Cooling capacity":"18KW~3000KW","Application":"Cooling industry","Shell material":"seamless\/304,316Lstainless steel pipe"}}

{"title":"Heat Conduction Performance Orbital Welding Tube To Tube Sheet 1mm","imgUrl":"https:\/\/img.ismap.com\/nimg\/3a\/37\/c0f4e00c1f85da55f72907800b01-200x200-1.jpg","attrs":{"Price":"USD 1000-2000 Per Piece","Brand Name":"TORICH","Model Number":"16Mn","Minimum Order Quantity":"1 Piece","Delivery Time":"4-6 Weeks","Certification":"ISO,BV,CE,ROHS,UL","Place of Origin":"Zhejiang China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"500 Tons Per Month","Packaging Details":"In bundles","Application":"Heat Exchanger,boiler","Standard":"ASTM,JIS,AISI,DIN,EN","Thickness":"1mm-40mm","Outer diameter":"6-630mm","Condition":"New"}}

{"title":"Durable Small SS Spiral Fin Tube Heating Element High Precision ASYM Standard","imgUrl":"https:\/\/img.ismap.com\/nimg\/1a\/31\/a239be94bddc68a46c866d7debb8-200x200-1.jpg","attrs":{"Brand Name":"TOBO","Model Number":"Stainless Steel","Minimum Order Quantity":"1PC","Delivery Time":"15 DAYS","Certification":"ISO SGS","Place of Origin":"CHINA","Payment Terms":"T\/T","Supply Ability":"3000 \/MONTH","Packaging Details":"AS Requirement","Standard":"ASYM","Welding line type":"WELD","Material":"Stainless Steel","name":"SS spiral fin tube","Feature":"high precision"}}

{"title":"Automatic Uht Milk Sterilizer Pasteurizer with Two Types Plate and Tube Customization","imgUrl":"https:\/\/img.ismap.com\/nimg\/01\/0d\/d99d0ccd05a802c4150f84f5d812-200x200-1.jpg","attrs":{"Minimum Order Quantity":"1pc","Delivery Time":"5-8 days","Model NO.":"uht pasteurizer","Principle":"Shake","Structure":"Screw Pump","Operation":"Continuous","Energy":"Heat Sterilization","Property":"Physical Sterilization","Type":"Tubular Uht Sterilization Machine","Power":"318V,50Hz , Customized Optional","Capacity":"1000lph,2000lph,3000lph,4000lph,Custmized Optional","Certificate":"ISO","Transport Package":"Wood Carton","Specification":"customized","Trademark":"CN","Origin":"Jiangsu, China","HS Code":"8434200000","Supply Ability":"Customized","After-sales Service":"Available","Warranty":"1 Years","Customized":"Customized","Certification":"CE, FDA, EEC, ISO13485","Scale":"Large","Automation":"Automatic","Samples":"US$ 60000\/Piece 1 Piece(Min.Order) | Request Samp","Customization":"Available | Customized Request","Payment Terms":"L\/C, T\/T"}}