BLISK 1. BLISK or IBR (Integrated Blade Rotors) are among the most innovative and challenging components in modern gas turbine engines. BLISK may be integrally cast‚ machined from a solid piece of material or made by welding individual blades to the rotor disc. Initially BLISK was used only in first stage LP compressor. Its low weight and excellent aerodynamic efficiency making it popular for use in the HP stage also. CONVENTIONAL DISK Vs BLISK 2. Conventional rotor disk comprises rotor blades
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(2) 2. Which processes occur during the electrolysis of molten sodium chloride? I. Sodium and chloride ions move through the electrolyte. II. Electrons move through the external circuit. III. Oxidation takes place at the positive electrode (anode). A. I and II only B. I and III only C. II and III only D. I‚ II and III (2) 3. What happens to the Cr3+(aq) ion when it is converted to CrO (aq)? A. Its oxidation number decreases and it undergoes reduction. B. Its oxidation number decreases
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Galvanic Cells Investigation Equipment: - 2 x 150 ml beaker - sand paper - Voltmeter - Copper electrode - Copper Nitrate - M(1)‚ M(2)‚ M(3) - Electrolyte couples matching the previous metals - two cables connecting the electrodes with the voltmeter - Paper towel - Wash bottle - Sodium Chloride Method: 1. Clean the copper‚ M(1)‚ M(2) and M(3) before starting the experiment. Sand with a fine grade sand paper to take off the outside coating. 2. Add 100 ml of one matching electrolyte
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Socio-economic Aspect I. Introduction Ecocell Thundervolts Company embraces its social responsibility to the community while satisfying the needs of the customers. As a business entity the company is assuring that it complies with the rules and regulations given by the government. Occurring throughout the last half of the 20th century to the present has been a continuous interaction between companies and consumer psychologies. When companies are first formed‚ the usual goal is to fill
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Experiment to investigate the effect of concentration of electrolyte on the current of voltaic cell Aim The aim is to identify the relationship between the concentration of H2SO4 solution and the current of Cu-Zn voltaic cell. Hypothesis My hypothesis is that the greater the concentration of sulfuric acid the bigger the current of the voltaic cell. In a voltaic cell‚ chemical energy is concerted to electrical though the oxidation and reduction happen on the electrodes. Current will not flow
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Polarity of a Battery Powered Motor Problem: Will changing the polarity of a battery powered motor change the direction the motor spins? Hypothesis: If the polarity is changed on a battery motor‚ I think it will change the direction the motor spins. I think it will act like reverse button. Methods: I. Connect a battery powered motor to a battery using a simple circuit a. Check that the negative of the battery is connected to the negative of the motor
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2.2 Peltier Thermoelectric cooler (TEC) Peltier thermoelectric heat pump is a popular thermoelectric energy conversion module that applies the Peltier effect‚ transferring heat energy from one side of the device to the other side. Peltier effect occurs when two different semiconductor materials (n-type and p-type) are joined together with electric current passing through its junction. Therefore‚ the junction could either be cooled or heated [28]. The Peltier TEC device can behave like a temperature
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Investigatory Project In Science & Technology IV (Potato Battery) Submitted by : Eloisa Umali Chelsea Jayne D. Diaz Pia Angela Valencia Acknowledgement The researchers would like to acknowledge with sincerest gratitude the following persons for the support they gave to them in the accomplishment of this investigatory project. Mrs. Rosie Castillo‚ who guide us and helped us in making this project. Who gave us the opportunity
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POTATO BATTERY Abstract a. Purpose To lessen the consume of electric charge b. Procedure We insert copper and zinc electrodes in to the potato‚ close but not touching each other. We use Clip leads to connect our electrodes to the Multimeter to measure voltage between two electrodes or current passing through the multimeter. For this experiment we removed the shell of a broken AA battery for our Zinc electrode. (Make sure to test your multimeter by connecting its Positive and Negative
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b) Write the anode and cathode half-reactions‚ and the net cell reaction for the above diagram. [ T/I / 2 ] Oxidation: Zn (s) Zn2+ (aq) + 2e- Reduction: Cu2+ (aq) +2e- Cu(s) Zn (s) + Cu2+ (aq) +2e- Zn2+ (aq) + 2e- + Cu(s) Zn (s) + Cu2+ (aq) Zn2+ (aq) + Cu(s) c) Write the cell notation for the above galvanic cell drawn. [ T/I / 1 ] Cu(s) | Cu2+(aq) || Zn 2+(aq) | Zn (s) d) Calculate the percent error of the cell potential for the above galvanic cell. Show all
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