Heat Transfer Lab Report

Superior Essays
Prepared by: Ahmed Alrahmani
Prepared to: Dr. Maohong Fan
Subject: Heat Transfer from Steam to Water
Date: 11/01/2013

Summary:

The objective of this experiment was to investigate the overall heat transfer ( Uₒ ) for the external heat exchanger at two different water circulation rates by using two methods “ Heating Liquids in Tank Storage ” and “ Corning Heat Exchanger “ . Briefly, the measurements were done by changing the volume flow rate between 40 lbm/min and 70 lbm/min for the first part of the experiment which was “Heating Liquids in Tank Storage”. However, for the second method, the measurements were taken by changing the flow rate for the second part, which was “Corning Heat Exchanger “, between 2, 4, 6, 8 and 10 (gallon per minute).
…show more content…
Next, the arrow icon was clicked to begin measuring temperatures. After that, the water drain valve was closed tightly. Next, the water flow was set to 2 gpm, and the steam valves were opened. Flow rate oscillated up and down during the process of heating, so adjustment was required to maintain the desired flow rate. Then, temperatures were recorded if stabilization and no significant changes occurred. Next, the tubes were examined, and the transition between boiling and non-boiling heat transfer was observed. Finally, the above steps were repeated exactly for flow rates of 4,6,8, and 10 …show more content…
Dev
Heat Transfer Coefficient 241.917 316.648 335.923 298.163 49.65411652
6 gpm week 1 week 2 week 3 Average(btu/(hr ft2 oF)) Std. Dev
Heat Transfer Coefficient 394.657 453.668 452.918 433.7476189 33.85553973
8 gpm week 1 week 2 week 3 Average(btu/(hr ft2 oF)) Std. Dev
Heat Transfer Coefficient 460.247 482.415 444.368 462.343 19.11007224
10 gpm week 1 week 2 week 3 Average(btu/(hr ft2 oF)) Std. Dev
Heat Transfer Coefficient 467.816 510.242 465.396 481.151 25.22256403

From Table.5, it is obvious that when the flow rate increases, the overall heat transfer coefficient increases as well. However, applying the experiment seems to fail in finding an assumption for the high difference in standard deviation values among different flow rates. It might be a result of the difficulty of measuring the flow rate using the rotameter. It is recommended to check the flow rate constantly to make sure the flow is maintained as possible.

Table.6 The confidence intervals analysis for different flow rates in 3 weeks at 2 gpm Week 1 Week 2 Week 3
Upper confidence interval 218.0811 257.2200

Related Documents

  • Improved Essays

    Boiling Point Lab Report

    • 820 Words
    • 4 Pages

    This experiment examined the boiling process and the effect of added ingredients. Purpose of this experiment is to understand boiling process as well as the factors that affect this property. The objective of this experiment is to investigate the appearance and temperature of range of water that is lukewarm, scalding, simmering and boiling point. On top of that, we also need to determine the factors that boiling temperature of water alone and with various ingredients added.…

    • 820 Words
    • 4 Pages
    Improved Essays
  • Decent Essays

    6.03 Calorimetry

    • 506 Words
    • 3 Pages

    Since it was in contact with the water and the calorimeter at the end of the experiment, its final temperature was the same as the final temperature of the water. With those 2 numbers, you can calculate ΔT. This number will also turn out negative, canceling the negative sign on the…

    • 506 Words
    • 3 Pages
    Decent Essays
  • Improved Essays

    6.03 Calorimetry Lab

    • 512 Words
    • 3 Pages

    Procedure: Part A: Extraction stage 1. Place a 125 mL separatory funnel in a ring stand equipped with a small ring. 2. Heat the hot plate. 3.…

    • 512 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Zach Verlander Experiment

    • 589 Words
    • 3 Pages

    Exp 6: forced convection The team leader for this experiment was supposed to be Zach Verlander, but Kyle McClain valiantly took his place as team leader. I was the recorder for this lab. Greg took the mass of the two cylinders, measured the circumference, and the height of the two different cylinders.…

    • 589 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Wv5 Unit 5 Lab Report

    • 252 Words
    • 2 Pages

    The valves were set up so that the water would flow from Tank 2, through the ½” nominal diameter, type L copper pipe, through the needle valve WV5 (Appendix A), and back to Tank 2. WV5 was initially closed. The Honeywell STD 924 DP meter’s pressure tap lines were placed at PT 1, just before the P-1 Sterlings Fluid System Peerless Pump PE50B1, and PT 10, just after WV5. A Fluke 179 multimeter was attached to the DP electrical box. The multimeter was set to read electrical signal in the form of DC current with units of mA.…

    • 252 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    Potato Enzyme Lab

    • 997 Words
    • 4 Pages

    The effect of various temperatures on Enzyme activity Introduction: The basic properties of life revolve around chemical reactions. Without the presence of enzymes some of life's processes would not happen easily. An enzyme is a macromolecule serving as a catalyst, they are generally a protein based molecule, as it is in the lab, Enzymes are organic catalysts that control the rate of chemical reactions in cells while not being permanently changed or without being consumed, which makes enzymes different from other proteins. In general, enzymes speed up the rate of reactions by lowering the activation energy required to start reactions. Furthermore, Enzymes are extremely well organized.…

    • 997 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    In order to safely dispose of a solution with a pH of 12, the solution needs to be diluted with an acid to neutralize the basic solution. The pH range should be between 5 to 8 to be ready for disposal. 2. A graduated cylinder, Erlenmeyer flask, and beaker were used to measure a 60-mL volume. Which of these devices seems to be the most accurate for measuring a 60-mL volume?…

    • 1978 Words
    • 8 Pages
    Improved Essays
  • Improved Essays

    Physics 261 Lab

    • 882 Words
    • 4 Pages

    Lab Report #1 Physics 261-001 Author: L. Cason Lab Partners: A. Longo, K. Harrell Date: 3/16/16 Objective: For this lab, the objectives were to learn how to use lab equipment such as the Lab Pro interface and the Logger Pro software and analyze the data collected using Excel. In order to achieve this Newton’s Law of Heating and Cooling was compared to the data collected by a thermometer attached to the Lab Pro. Theory:…

    • 882 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    In our experiment, to look deeper into exothermic reactions, we first had to create our own calorimeter. We did this using 3 separate 8 ounce Styrofoam cups, one for each compound. We then used cardboard to create a lid for each cup and taped it to the sides so the seal would be as tight as we could make it. We also needed a 150mL beaker to measure out the 50 mL of distilled water that we used in each trial to dissolve each compound in. To weigh out each compound we also needed an electronic balance.…

    • 455 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Used beaker tongs to place beaker back on hot plate and heated between 80 and 90 degrees Celsius. Flask placed into boiling-water bath and readings were taken. Removed flask and temperature probe and stopped data collection. Results: Pressure (kPa)…

    • 839 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Polystyrene Heat Lab

    • 1264 Words
    • 6 Pages

    What do your results tell you? Are there any relationships, patterns or trends in your results? From our [processed] results, we can conclude that the polystyrene cup served as the least effective conductor of heat, the tin mug coming in at a close second. The most effective material for heat conduction was the plastic mug.…

    • 1264 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Bomb Calorimeters

    • 619 Words
    • 3 Pages

    The purpose of this lab was to find the most efficient way to transfer heat from a chip to a water beaker. The heat transfer was coming from burning a baked lay and through our calorimeter heat energy was pushed out. Then we took it another step further by modifying our calorimeter to capture even more energy. The overall purpose was to capture as much energy as possible. “Energy is the ability to do work, or the ability to elicit change in matter.”…

    • 619 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    If the system is insulated, the entire system would be considered adiabatic and the temperature of the surrounding water would only increase. Since the procedure is adiabatic, qtotal = qsystem + qsurroundings = 0. qsystem is the heat that is released caused by the reaction while qsurroundings is rise of the water’s temperature. Measuring the temperature rise by burning the benzoic acid can be utilized to find the heat capacity from its previous…

    • 625 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Enthalpy Lab Report

    • 840 Words
    • 4 Pages

    The heat capacity of the calorimeter was determined to be 19.3 J/˚C. For reaction 1, which was between NaOH and HCl, the enthalpy of the reaction was -45.7 kJ/mol. For reaction 2, which was between NaOH and NH_4 Cl, the enthalpy of the reaction was -8.67 kJ/mol. For reaction 3, which was between HCl and NH_3, the enthalpy of the reaction was -46.2 kJ/mol. The enthalpy of reaction 3 determined by Hess’s Law and the results of reactions 1 and 2 was -37 kJ/mol.…

    • 840 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    The final temperature of the water was then recorded. This process was repeated using 1.03 g and 2.07 g of sodium sulphate decahydrate, and 1.01 g, 1.50 g and 2.02 g of anhydrous sodium…

    • 1185 Words
    • 5 Pages
    Superior Essays