experiment 1&2 data
#5
#6
#7
please calculate data for #6, #7 and #8
correction please solve #5, #6, and #7
Table 1. Experimental data. Tube Side (Hot) Shell Side (Cold) Tout (°C) V (mL) Tin (°C) Tout (°C) V (mL) 72.1 650.6ml 25 36.4 650.6ml time (s) Expt. # 1 Tin (°C) 93.3 22.92 s 1. If needed, update your diagram on page 1 with the correct flow patterns for the hot and cold fluid. Experiment 2: Effect of Temperature Driving Force on Heat Transfer Rate a) Pour the water from the outlet beakers back into the corresponding hot and cold inlet beakers. b) Repeat steps c-g of Experiment 1 and record results in Table 2 Table 2. Experimental data. Tube Side (Hot) Shell Side (Cold) Tout (°C) V (mL) Tin (°C) Tout (°C) V mL) 56.3 650.6ml 33.3 38.6 650.6ml Expt. # Tin (°C) 66.4 time (s) 18.11 2
5. Calculate the log mean temperature difference (ATLMTD) and the heat transfer areas using the formulas below: (Thin-cout)-(Th.out-Tc.in) ATLMTD,counter current flow n-Tcout) Th.out-Tein Thin In ( A, = (TTDL)N Np - A; = (ID:L)NN ATLMTD [°C] A. [m2] A [m²] Expt. # 1 2 nnoratura differences determine F (the log mean
6. Using the figure below and your experimental temperature differences, determine, F (the log mean temperature difference correction factor) for each experiment 1 R = Thin - Thout Tcout -Tcin 0.9 0.8 Correction factor, FT 0.7 R = 5.0 4.0 3.0 0.6 2.0 1.5 1.0 0.8 0.6 0.4 0.2 0.5 0 0.1 0.2 0.8 0.9 1 0.3 0.4 0.5 0.6 0.7 P=(Tcout - Tein)/(Thin - Tin) F Expt. # 1 2
7. Calculate the theoretical and experimental overall heat transfer coefficients for each experiment using the formulas below. 1 1 In(D./D) 1 + + h, A. 2kL H₂A; (UA) exp = On.measured ΔTLMTDF (UA) theory Expt. # W W (UA) theory ) (UA)exp L°C 1 8 Worksheet: Shell and Tube Heat Exchanger N
Compare the predicted heat transfer rate to the measured heat transfer rate for each experiment. If the values do not agree, list some possible reasons. écola + enot On.predicted = (UA) theoryATLMTDF 2 On measured Expt. # On.predicted [W] On mesured [W] 1 2
LE Reference Information for Shell and Tube Heat Exchanger DLM • Tube length: L = 138 mm • Baffle thickness: 2 mm • Tube type: 14" BWG No. 20 • Number of tubes per pass, Na = 2 • Tube dia. outer, D. = 6.35 mm (0.25 in) • Baffle spacing: B = 18 mm • Tube dia. inner, Di= 4.572 mm (0.18 in) • Shell width: Ws = 10 mm • Tube material: stainless steel 304 • Shell height: 82 mm • Number of tube passes, Np = 2 • Baffle window height: hbw = 21 mm
Table 1. Experimental data. Tube Side (Hot) Shell Side (Cold) Tout (°C) V (mL) Tin (°C) Tout (°C) V (mL) 72.1 650.6ml 25
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Table 1. Experimental data. Tube Side (Hot) Shell Side (Cold) Tout (°C) V (mL) Tin (°C) Tout (°C) V (mL) 72.1 650.6ml 25
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