ANALYSIS OF THE EFFECTIVENESS OF HYDROCARBON VAPOR CONDENSATION

Аннотация

This article analyzes the heat transfer process during the condensation of hydrocarbon vapors. The study focuses on determining the heat transfer coefficient in both vertical and horizontal condensers. Experimental research was conducted under specific conditions,including apressure of200-250 kPa and a vaporflow rateof 0.000122-0.000367 kg/s. The results demonstrate that the heat transfer coefficient increases with rising temperature and that horizontal condensers exhibit 1.5 times higher efficiency than vertical ones. The findings highlight the advantages of using horizontal condensers for improved energy efficiency in industrialapplications. Keywords:Heat transfer, condensation, hydrocarbon vapors, heat exchangers, cooling process, vertical condenser, horizontalcondenser, energy efficiency. This article discusses theanalysis of heat transfer during thecondensation ofhydrocarbon vapors. The study calculated the heat transfer coefficient during the condensation process and examined howthisprocess occurs in horizontaland vertical types ofequipment. The temperature distribution between the gas condensate vapors and the coolant over time and distance was studied using an experimental setup. This process was conducted at a pressure of 200-250 kPa and a vapor flow rate of 0.000122-0.000367 kg/s. In the experiments, the cooling water flow rate was 5 liters per minute. The properties of water were determined based on its temperature usingdataobtained from scientific sources. When calculating the heat transfer coefficient, the physicochemical properties of water and gas condensate were measured based on the experimental results, including density, dynamic viscosity, and thermal conductivity. Additionally, appropriate equations using the Reynolds numberwere applied to calculate theheat transfer process inheat exchange equipment: (1) AV ρ Here 2 Re = πd n∙μ V-volumetricflowrate of water in m3/s; d -inner diameter ofthecondensertubes inm; vn n-numberoftubes in thedevice, units ρ- densityof water, kg/m3; μ-dynamic viscosityof water, Pa·s. According to the research results, it was determined that when the water flow rate changes, its movement undergoes a transformation process. In this case, specific equations were selected for thevertical and horizontaltypes of heat exchangers: (2) 0.9 0.43 Nu = 0.008∙Re ∙Pr page1287 INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE ISSN:2692-5206,ImpactFactor:12,23 AmericanAcademicpublishers,volume05,issue03,2025 Journal: https://www.academicpublishers.org/journals/index.php/ijai Theheat transfer coefficient of cooling water isdetermined using theNusselt number: (3) Nuλ a2 = dвн The heat release coefficient of gas condensate vapors for vertical and horizontal condensers was found using thefollowing equations: Fora vertical condenser: (4) 2 0.33 ρкнdнрnT a1 = 378λкн ∙ µкнGp Fora horizontal condenser: (5) 2 0.33 ρкнLTnT a1 = 202∙(p)∙λкн ∙ µкнGp Using these equations, the overall heat transfer coefficient is determined by the following formula: (6) a1a2 K Th = e caa1+lcau2lation results show the heat transfer coefficients at different temperatures. The obtained values forvertical and horizontalcondensers are presented inthe tables. Table1 Cooling water Heat transfer Gas condensate Thermal temperature, °C Heat transfer coefficient 2, temperature, °C conductivity coefficient to W/(m2·K) coefficient 1, the device K, W/(m2·K) W/ (m2·K) t t t t н1 к1 н2 к2 174 24 2146 18 34 293 257 180 24 2155 18 25 302 264 186 24 2163 18 27 311 271 192 24 2172 18 24 319 278 198 24 2238 18 24 335 291 The heat transfer coefficient of gas condensate vapors (1), the heat transfer coefficient of cooling water(2), and thetotal heat transfer coefficient (K) ofthedevice in avertical tubularcondenser: Table2 Gas condensate Cooling water Heat transfer Heat transfer Heat transfer temperature, °C temperature, °C coefficient K to coefficient 1, W/ coefficient 2, the device, W/ (m2·K) W/(m2·K) t н1 t к1 tн2 tк2 (m2·K) page1288 INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE ISSN:2692-5206,ImpactFactor:12,23 AmericanAcademicpublishers,volume05,issue03,2025 Journal: https://www.academicpublishers.org/journals/index.php/ijai 158 17 7820 20 66 428 405 160 19 8931 20 63 450 428 165 15 9460 20 61 459 437 168 14 9519 20 56 462 440 172 14 9687 20 50 468 446 Figure 1 - Dependence of the heat transfer coefficient of gas condensate vapors in horizontal(1) andvertical (2) tubularcondensers on theaverage temperature: The heat transfer coefficient of gas condensate vapors in a horizontal tubular condenser (1), the heat releasecoefficient ofcooling water (2), and the totalheat transfer coefficient (K) oftheunit: This figure shows the change in the heat transfer coefficient of gas condensate vapors depending ontheaverage temperature. With increasing temperature, the heat transfer coefficient in the horizontal capacitor increased by 41W/(m2·K), and in thevertical -by34W/(m2·K). The α1 coefficient (the heat transfer coefficient of gas cond