New Method of Thermal Testing Shell−and−Tube Heat Exchangers
|International Journal of Applied Physics|
|© 2020 by SSRG - IJAP Journal|
|Volume 7 Issue 3|
|Year of Publication : 2020|
|Authors : Konstantin Ludanov|
How to Cite?
Konstantin Ludanov, "New Method of Thermal Testing Shell−and−Tube Heat Exchangers," SSRG International Journal of Applied Physics, vol. 7, no. 3, pp. 37-43, 2020. Crossref, https://doi.org/10.14445/23500301/IJAP-V7I3P106
The article presents new methods of thermal testing of shell-and-tube heat exchangers according to copyright certificates SU No. 1377558 and No. 1589021, in which for the first time, two parameters of a heat exchanger are jointly determined: the heat transfer coefficient k and the conditional angle φ between the directions of flow of heat carriers in the heat exchanger. This angle φ (rad) characterizes the efficiency of the mutual flow of heat carriers, which increases with an increase in the angle φ: for forward flow, i.e., the most ineffective scheme, φ = 0, and for counter-flow, i.e., the most efficient scheme φ = π (180 degrees). With the determination of a new parameter φ, this test method allows a more accurate determination of the heat transfer coefficient k − due to the separation of the contributions to the efficiency of the heat exchanger of both factors: intensive (k) and extensive factor (φ). The paper also presents the theoretical foundations of the universal thermal calculation method (UMTC) of heat exchangers-recuperators. The efficiency of the coolant flow circuit is set just by the conditional angle φ.
shell-and-tube heat exchanger, heat carrier, thermal tests, heat transfer coefficient, the efficiency of the current circuit, counter-flow index, conditional angle.
 Kutateladze S.S. and others. “Modeling of heat and power equipment. "Energy," M-L, 1966.
 Belokon N.I. “Analytical foundations of thermal calculation of tubular furnaces // Oil Industry”. 1941. No. 2-3.
 Belokon N.I. “Thermodynamic processes of GTE. − M .: "Nedra,"” 1969.
 Ludanov K.I. “A method for approximating the sum of a power series in its first three terms.” − Kiev: Uk-D84, No. 763, 1984.
 Copyright Certificate No 1377558 USSR, MKI4 F 28 D 7/00. Method Ludanov K.I. tests of recuperative heat exchangers / K.I. Ludanov.− No. 39412287/24−06; declared 08.08.85; publ. 02.29.88, Bul. No. 8.
 Ludanov K.I. “Elements of the theory of thermal calculation of heat exchangers-recuperators”. К .: UkrNIINTI, Uk-D84 No. 615, 1984.
 Ludanov K.I. Questions of the theory of thermal design of heat exchangers with a parallel-mixed current circuit. K .: UkrNIINTI, Uk-D86 No. 965, 1986.
 Copyright Certificate No 1589021 USSR, MKI5 F 28 D 7/00. Ludanov's method of heat engineering tests of heat exchangers / KI. Ludanov.− No. 4470582/24−06; declared 08.05.88; publ. 30.08.90. Bul. No. 32.
 Trefny F. Chem.-Ing. Techn., 1965, Februar, S. 122-127.
 Trefny F. Chem.-Ing. Techn., 1965. Mai, S. 503-509.
 Trefny F. Chem.-Ing. Techn., 1965 Oktober, S. 191-196.
 Ludanov K.I. The universal method of thermal calculation of recuperators / Abstracts of reports. III conference "EnerCon-97" New technologies and US investments in the energy sector of Ukraine. 23-25.04. 1997 Kiev, "Ukrainian House." p. 52.
 R.W.Tapre, Dr.J.P.Kaware, "Comparison of Theoretical and Experimental Overall Heat Transfer Coefficient for Acetic Acid –Water System in Spiral Heat Exchanger" SSRG International Journal of Thermal Engineering 4.3 (2018): 1-4.
 Ludanov K.I. “Method for obtaining approximate formulas // "EUREKA: Physics and Engineering" (Mathematical sciences) No. 2, p. 72-78 (2018).
 Ludanov K.I. “An analytical method for calculating the universal characteristics of heat exchanger current circuits”. Kiev: UkrNIINTI, Uk. D87 No. 1977, 1987.
 Ludanov K.I. “Determination of the heat transfer coefficient of heat exchangers. Express-method of operational tests” / Problems of industrial heat engineering: 1st International Conference ITTF NAS of Ukraine, 15.09.2005: abstracts of reports. − Kiev, 2005 .− S. 99-100.
 Ludanov K. “SYSTEMS OF SOLAR HOT WATER SUPPLY”. Development, modeling, and optimization. − LAP.: LAMBERT Academic Publishing, 2018.
 Wong H.Y. “Handbook of Essential Formulae and Data on HEAT TRANSFER FOR ENGINEERS”. LONGMAN: London and New York, 1977.
 Ludanov K.I. “Generalized methods of thermal calculation of shell-and-tube heat exchangers-recuperators. Analytical review “// "Alternative energy and ecology," RF, Sarov, No. 15 (137) 2013, p. 17-28.