AME230

LP Available Courses Video Tutorials us / Calamba-3rd Year Level 2nd Semester 55215 ME 3214 Principles of thermodynamics / Prelin 14 Combustion Engineering A Carnot engine operates between temperature limits of 1200 °K and 400 °K and using 0.4 kg of air. The pressure at the beginning of heat addition is 1500 kPaa and at the end of heat addition is 750 kPaa. Determine the heat added O a. 55.9 kJ/kg O b. 95.5 kJ/kg O C. 95.5 kJ O d. 55.9 kJ 立

Problem Statement A heat engine draws 14 kW of heat from a reservoir at 900 K. The work it produces drives a refrigerator which produces a refrigeration capacity of 12 kW. Both devices reject heat to a reservoir at 300 K. What is the lowest possible temperature of the space cooled by the refrigerator? Answer Table Correct Stage Description Your Answer Answer * 1 Lowest temperature of cold space (K) Due Date Grade (%) Part Weight Attempt Action/Message Type Nov 7, 2024 11:59 pm 0.0 1 1/5 Submit

Question 6 Compare the carbon emissions per MJ to heat household water using the following two energy systems: a) A 25% efficient coal-fired power plant delivering electricity to a 99% efficient electric water heater. Assume LHV carbon intensity of coal is 25.8 gC/MJ. b) A new 50% efficient natural gas-fired combined cycle power plant to a 99% efficient electric water heater. You must calculate the LHV carbon intensity of natural gas. Assume 100% methane and ideal conditions. Assume 5% losses in electrical transmission lines and 90 MJ of fuel input to each system.

In company that designs road cars and heavy trucks, it important to make the proper selection of the engines. Your part as a system energy engineer is to make a proper selection between an engine operates on Otto cycle/gasoline engine or Diesel cycle/diesel engine. Your head of department asked you to provide a detailed technical report that shows your selection for engine to be used with heavy truck vehicle. This is best achieved by performing the following tasks: Section.1: 1. Which engine does operate at lower rpm and has higher air-fuel mass ratio? 2. Which engine does burn fuel more completely? 3. Which engine has lower fuel cost? 4. Explain what compression ratio for Otto and Diesel cycles means 5. Explain what cut-off ratio for Diesel cycles means 1:06 pm 6. Explain the limitations of SI engines in terms of their ability to operate at much higher compression ratios. What is this limitation called? 7. Provide general plot(s) for thermal efficiency, 7 vs compression ratio, r for…

A system temperature and pressure becomes equal to that of the earth and transfer of energy ceases is known as unavailable energy Select one: O True O False One tonne of refrigeration is equal to 0.035 W. Select one: O True O False Which statement is FALSE O A. Impeller is absent in reciprocating compressor O B. Diffuser is present in reciprocating compressor O C. Rotary compressors are the capability of running at high speeds O D. Reciprocating compressors are bulky

Mechanical EngineeringThermodynamicsTopic: Rankine Cycles

7. A diesel electric plant supplies energy for Meralco. During the 24 hour period, the plantconsumed 200 gallons of fuel at 28 degree Celsius and produced 3930 KW-hr.Industrial fuel used is 28 degree API and was purchased at 5.50 php per liter at 15.6degree celsisu. What is the cost of the fuel be to produce 1 KW-hr?

Renewable neergy sources mechanical engineeing course

Pls. Answer thank you! An auditorium is designed to seat 4500 people. The ventilation rate is 1.62×107 ft³/hr of outside air. The outside temperature is 0°F dry bulb, and outside pressure is 14.6 psia. Air leaves the auditotium at 70°F dry bulb. There is no recirculation. The furnace has a capacity of 1,250,000 Btu/hr. The temperature at which the air should enter the auditorium is most nearly?

7. In the summer it tends to become quite hot and humid in the Guelph area. Many home owners purchase dehumidifiers to remove moisture from the air. Excessive moisture can create problems with dampness in basements, so it is a good idea to keep the situation under control, Dehumidifiers work on the principle that when air is cooled, its ability to hold moisture decreases Therefore, the dehumidifier consists of a cabinet-like structure containing a refrigeration coll. As the room air blows over this coil. it is cooled to a temperature that is below its dew point. Moisture then condenses out of the air and is collected in a bucket (or directed by a hose to a floor drain), A curious home owner wonders how much water will be collected in a 12 hour period. He empties the bucket at the start of the test and comes back exactly twelve hours later to see how much water has been collected. Calculate the amount of water that would be collected in a twelve-hour period if 1.15 cubic metres per…

Correct answer or dislike

please help me with this

Question is complete suppose any data if required

QUESTION 4 Kindly answer correctly. Please show all the necessary steps. Thank you so much in advance.

A building owner has several leaking hot water faucets that waste a combined total of 50 gallons per day. The supply hot water temperature in the building is 130 °F and the mains water temperature is 50 °F. If the hot water is provided by a natural gas boiler with an efficiency of 85%, how much energy could be saved if the owner repairs the leaking faucets? a. 23,292 kBtu/year b. 12,184 kBtu/year c. 1,717 kBu /year d. 14,326 kBtu/year

Questions: 1. b. As the power plant engineer, you are asked by the power plant manager to design a new steam-based power plant with a net power output target of 200 MW with a thermal efficiency of 40%. Thermodynamics calculation should be conducted for the known condition illustrated in Figure 1. Boiler P₁ = 8.0 MPa Saturated vapor Condenser Pump Turbine of Vapor and Gas] Cooling water 8.0 MPa 0.008 MPa tw. Saturated liquid at 0.008 MPa Figure 1. Illustration of steam turbine system and its T-S diagram a. Calculate the back work ratio, the system's mass flow rate, and the cooling water's mass flow rate. What kind of efforts should be conducted if the plant manager asks you to increase the system's efficiency to 50% ? Explain and provide proof in the form of calculation! VIOL

Thermodynamics: Please show me how to solve the following practice problems in step by step solution (Thank you so much!)

Pls. Answer thank you! A diesel electric power plant supplies energy for Meralco. During a 24-hour period, the plant consumed 240 gallons of fuel at 28°C and produced 3930 kW-hr. Industrial fuel used is 28°API and was purchased at P30 per liter at 15.6°C. What is the cost of fuel to produce one kW-hr?

LAB TEST LAB TES1 3 For induced draft counter flow cooling tower O a. fan is kept at bottom of cooling tower and air and water flows in opposite directions. Ob. fan is kept at top of cooling tower and air and water flows in same directions. O c. fan is kept at bottom of cooling tower and air and water flows in same directions. O d. fan is kept at top of cooling tower and air and water flows in opposite directions. Jump to... TOSHIBA

Please help answer the question regarding heat transfer. I tried solving it and came up with 152.56 oC but it says that it is incorrect. Please show how to get the correct answer. Thank you.

13 - A fixed volume insulated tank, which was initially empty, was connected by a valve to a distribution line carrying helium gas at a temperature of 125ºC. The valve is opened first and closed when the pressure is the same as the distribution line pressure. What is the final internal energy of helium in the tank? (Internal energy of the warehouse in the final state = Enthalpy of the distribution line). (Cp=5.1926) will be taken.      a) 701.0 kJ/kg  B) 649.1 kJ/kg  NS) 2014.7 kJ/kg  D) 2118.6 kJ/kg  TO) 2066.7 kJ/kg

9

I need unique and correct answer. Don't try to copy from anywhere. Do not give answer in image formet and hand writing

You must submit the answer within 20 Minutes, Please make sure the answer is correct before submission.

请解决这个ti mu

Student Name: Reg. No: 1. Briefly describe Pascal's Law. Provide an examples of Pascal's Law applications in engineering. What is Revnolds Number what is the purnoss of Revnolds nunmber? State the

QUESTION 3 A manufacturer conducted an experiment for an evaporator capacity 500 kW cooling and designed for high COP of 2 when using lithium bromide plus water in an absorption refrigeration system. The evaporator operates 20 C, condenser 40 C & absorber 45 C supplying 1.4 kg/s of water plus lithium bromide solution to the generator. For a condenser size of 650 kW, determine: Show in your solution paper: Chart reading for Concentration and Enthalphy of solution being pumped Provide in the Answer Box: Enthalpy of solution being pumped in kJ/kg

Are you as strong as a horse? Purpose: To understand the concept of work and power and to calculate the power generated by yourself or a friend. Materials: A tape measure, stairs, and a stopwatch, cell phone, or wristwatch. Key Physics Concept: Power is the rate of doing work. Power can be calculated by dividing the work done by the time it takes to do the work; in this case we will do work against gravity on a stair case (you may add your power in doing pushups to test your arm power). Can you guess what your peak horsepower is? You may do the stairs one at at time or multiple stairs at a a time; whatever is most safe and efficient for you. Procedure: Observations: Analysis: Conclusions: Application: 1. Will your hp change if you performed the activity for a longer duration (for example, climbed the CN tower staircase)? In what way? Explain. 2. Research the horsepower generated by a car. How does the average person's peak power rating compare to it? How many average people would it…

Part 1: Do the Analysis of the Ocean Thermal Gradient Power Plant shown below. Your Analysis will be easier to do in EES but it is up to you. Your EES program must be well documented and documentation in your code should reference system sketches. (The cycle and individual components) These sketches are done on attached engineering or typing paper, unless you are able to draw them in EES. You must validate your results with hand calculations on engineering paper that invoke the 1 and 2 Law from the perspective of the entire cycle, not the individual components. Of course, a system sketch is required. nd 1. An ocean thermal gradient power plant using a simple non-ideal Rankine Cycle operates with a peak boiler temperature of 70 °F and a condenser temperature of 40 °F. The warm surface water of the ocean is supplying the thermal energy to the boiler. Assume a high source temperature of 80 °F. The cooler water deeper in the ocean is the sink for heat rejection at the condenser. Assume a…

Instructions: dont use Chatgpt ok. Use clean handwriting with Diagrams solution u can answer latex also woth Diagram. No need generalized answer ok. If u dont follow my instructions i will dislike direct ok. Thanks

subject: mucanical eng

4