ME495 Lab 4_SmithE

You are an engineer in a company that manufactures and designs several mechanical devices, and your manager asked you to help your customers. In this time, you have two customers, one of them wants to ask about internal combustion engines while the other requires a heat exchanger with particular specifications. Follow the parts in the following tasks to do your job and support your customers.Task 1:Your first customer asked for an internal combustion engine to use it in a designed car. Your role is to describe the operation sequence of different types of available engines, explain their mechanical efficiency, and deliver a detailed technical report which includes the following steps:STEP 1Describe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition engines.STEP 2Explain and compare the mechanical efficiency of two and four-stroke engines.STEP 3Review the efficiency of ideal heat engines operating on the Otto and Diesel…

You are an engineer in a company that manufactures and designs several mechanical devices, and your manager asked you to help your customers. In this time, you have two customers, one of them wants to ask about internal combustion engines while the other requires a heat exchanger with particular specifications. Follow the parts in the following tasks to do your job and support your customers.Task 1:Your first customer asked for an internal combustion engine to use it in a designed car. Your role is to describe the operation sequence of different types of available engines, explain their mechanical efficiency, and deliver a detailed technical report which includes the following steps:STEP 1Describe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition engines.STEP 2Explain and compare the mechanical efficiency of two and four-stroke engines.STEP 3Review the efficiency of ideal heat engines operating on the Otto and Diesel…

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…

Required information Problem 07.025 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Refrigerant-134a enters the coils of the evaporator of a refrigeration system as a saturated liquid-vapor mixture at a pressure of 140 kPa. The refrigerant absorbs 200 kJ of heat from the cooled space, which is maintained at -10°C, and leaves as saturated vapor at the same pressure. Problem 07.025.c - Total entropy change of the process Determine the total entropy change for this process. The total entropy change for this process is kJ/K.

10:45 PM | 5.7KB/s E expert.chegg.com/ex Chegg + Time remaining: 00:06:48 Vo 4G+ LTE Answer Skip Exit 10 26 Chemistry 1. You are throwing a fondue party! You need to heat 800.0 mL of vegetable oil from 20 to 190.0°C using an ethanol burner. Assuming a perfect transfer of heat from the burner into the oil, what mass of ethanol would be required (Note - ethanol has a molar enthalpy of -1277 KJ/mol)? Assume your kitchen is at SATP, vegetable oil has a density of 0.920 g/mL and the specific heat capacity of vegetable oil is 2.000 J/g °C.

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

Part b. MATLAB coding.  Hot air for a large scale drying operation is to be produced by routing the air over a tube bank, while products of combustion are routed through the tubes. The surface area of the cross-flow heat exchanger is A = 25 m2, and for the proposed operating conditions, the manufacturer specifies and overall heat transfer coefficient of U = 35 W/(m2 K). The air and the combustion gases may each be assumed to have a specific heat of cp = 1040 J/(kg K). Consider conditions for which combustion gases flowing at 1 kg/s enter the heat exchanger at 800 K, while air at 5 kg/s has an inlet temperature of 300 K. (a) What are the air and gas outlet temperatures? (b) Explore the effect of changes in surface area and heat transfer coefficient on the air outlet temperature for UA values from 500 to 2500 W/K. Discuss the implications and back up the discussion with an appropriate plot

Southern Technical University OETC STU Fluid Mechanic/Second Class Basra Technical Collage Thermal Mechanical Engineering Dep. Lecturer/ Farah A. Al-Salam H.W: what is the bulk modulus of elasticity of a liquid which is compressed in a cylinder from a volume 0.0125m' at 80N/cm2 pressure to a volume of 0.0124m' at 150N/cm2 pressure?

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Please, solve task 1

Problem 03.028 - DEPENDENT MULTIPART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitted, you willI be unable to return to this part. A 1.9-m3 rigid tank contains steam at 220°C. One-third of the volume is in the liquid phase and the rest is in the vapor form. The properties of steam at 220°C are given as follows: vf= 0.001190 m3/kg and vg= 0.08609 m3/kg. Steam Vm3 220°C Problem 03.028.b - Quality of a saturated mixture Determine the quality of the saturated mixture. (You must provide an answer before moving to the next part) The quality of the saturated mixture is

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

Task 1 You are a student at the HTU University, the instructor of the fundamental of thermodynamic course asked you to explain the fundamentals of thermodynamic systems to Grade 10 school students to help them visualize the importance of thermodynamics in their life starting from their car engine and moving to the different appliance that they use in their home, discuss the following with school students: Q1. What does thermodynamics mean and represent? Give examples from your daily life. Q2. What is a thermodynamic property? What is the difference between intensive and extensive properties. Why the density is an intensive property; it is dependent on mass and volume which are extensive properties, right?. Q3. What is the difference between energy and heat transfer? Give examples on both. Q4. What does the first law of thermodynamics state? Give two examples on the first law of thermodynamics from your daily life. Q5. Write down the equation of energy balance for closed, open, and…

COMBUSTION ENGINEERING 1. The following details were noted in a test on a single-cylinder four-stroke oil engine: bore = 150 mm; stroke = 160 mm; speed of engine = 500 rpm; fuel consumption = 0.0475 kg/min; calorific value of fuel = 42,000 kJ/kg; the difference in tension on either side of the brake pulley = 400 N; brake circumference = 2.2 m; length of the indicator diagram = 50 mm; area of positive loop of indicator diagram = 475 mm²; area of negative loop = 25 mm?; spring constant = 0.8333 bar per mm. Calculate: d) The Brake thermal efficiency, in percent kg e) The Brake Specific Fuel Consumption, bkW-hr

COMBUSTION ENGINEERING 1. The following details were noted in a test on a single-cylinder four-stroke oil engine: bore = 150 mm; stroke = 160 mm; speed of engine = 500 rpm; fuel consumption = 0.0475 kg/min; calorific value of fuel = 42,000 kJ/kg; the difference in tension on either side of the brake pulley = 400 N; brake circumference = 2.2 m; length of the indicator diagram = 50 mm; area of positive loop of indicator diagram = 475 mm2; area of negative loop = 25 mm?; spring constant = 0.8333 bar per mm. Calculate: a) The Brake Power in kW b) The Indicated power in kW c) The mechanical efficiency d) The Brake thermal efficiency, in percent kg e) The Brake Specific Fuel Consumption, bkW hr

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13. Your body reduces blood flow to a region by vasoconstriction. The artery can be modeled as a cylinder with radius R and a length L, and one can consider only forces from pressure and tension forces in the muscle with surface tension constant y = or where r is the thickness of the muscle. A. R50 microns B. R 100 microns- C. R 200 microns. NORMAL ARTERY D. R-300 microns E. R 400 microns MUSCLE BOFLOW pressure forces from the blood Assuming that the pressure difference AP=10 kPa and a 200 kPa for a typical 10-micron muscle, what is the largest-size blood vessel for which such a muscle could still constrict the blood vessel? tension forces from muscle

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Project 2 You are an engineer working in a company that provide compressors for food industry, your manger asked you to do research to investigate the different compressor types along with their applications A. Assess the different types of positive displacement and dynamic compressors available in your company in a simple and brief form so you help clients to determine which type of compressors they will use for their corresponding applications. You will have to discuss the compressor working principle, common application, pressure ratio/operating range, and main advantages and disadvantages. This report should be no more than two pages in length.

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Which of the following choices is correct.1 regarding the right sequence of combustion process phases of Sl engines špark ignition - combustion - turbulence - exhaust špark ignition - early fame development - flame propagation - flame termination Intake - compression - power - exhaust O Fuel injection - combustion - flame propagation - auto-ignition Ignition delay in spark ignition engine can .2 be defined as The period between start of injection .and start of combustion The period between spark onsets and start of combustion The period between spark onsets and actual change in pressure rise The period between spark onsets and start of auto-ignition Severe auto-ignition (knock) can effect the .3 :following parts of the engine The piston O Piston rings C Engine head O Head gasket O All of the above O

Q.1 a. Repeatability and reproducibility are ways of measuring precision, particularly in the field of engineering. i. What is an engineer's expectation when performing repeatability or reproducibility? ii. State a difference between repeatability and reproducibility in an experiment? b. Figure Q.1 shows the measurement data of two types of thermal transducers namely thermocouple. Турe E Туре К 6.8 4.2 20 40 60 80 100 Temperature Difference (°C) Voltage Output (mV)

27. MTTR includes several activities divided into three groups and these are:

Review | Constants

State true or false 1. The thermal boundary layer will be thicker than the velocity boundary layer if Pr>1. 2. For laminar flow in a tube subjected to a uniform heat flux, the fluid temperature decreases linearly along the tube. 3. Gravity force rather than buoyancy force plays a more important role in free convection. 4. Reynolds number is the ratio of the buoyancy force and viscous force. 5. The hydraulic diameter of annulus is D2-D .

9.1 We want to get an idea of the actual mass of 235U involved in powering a nuclear power plant. Assume that a single fission event releases 200 MeV of thermal energy. A 1,000 MW, electric power plant has a thermal power of approximately 3,000 MWh- a. What rate of fission reactions is required to produce this power? (Note: 1 eV = 1.6 x 10-¹9 J.) b. The reactor core consists of approximately 100 tonnes of UO₂ (1 tonne = 1,000 kg), which is enriched in 2U to 4%. How many full-power years could the reactor operate if all of the 235U were to be fissioned? What factors prevent such complete depletion of the 25U from occurring? C. Under the 2U depletion scenario of part b, what mass of fission products and what mass of high-level wastes (HLW) would be produced?

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Pls.answer thank you! A classroom that normally contains 40 people is to be air-conditioned with window air-conditioning units of 5 KW cooling capacity. A person at rest may be assumed to dissipate heat at a rate of about 360 KJ/hr. There are 10 light bulbs in the room, each with a rating of 100 watts. The rate of heat transfer to the classroom through the walls and the windows is estimated to be 15,000 KJ/hr. If the room air is to be maintained at a constant temperature of 21°C, determine the number of window air-conditioning units required.

I want to briefly summarize what he is talking about.

Vo) 1 0.00 LTE2 KB/s 4G 4G 3:43 64 + IIl yr RAC - Tes... / Government College of Engineering, Salem-11 Department of Mechanical Engineering Sub Code:16PTME303 Sub Name: Refrigeration and Air Conditioning UNIT TEST –I Date: 23/092020 Class: B.E PT Mechanical Engineering Marks:50 Semester: III Duration:90 min PART – A Q. No Question M BT CO L 1 Draw T-S and P-h diagram for Vapour compression cycle with vapour wet after compression. 1 1-F Define ton of refrigeration. 2 1-F 1 Determine the COP of a refrigerating machine working on a reversed Carnot cycle operates between 310K and 250K. 3 2 1- 1 A 4 2 1- 2 Classify the refrigerant evaporators A 2 1- 2 State the merits and demerits of air-refrigeration system. U PART- B M BT CO A vapour compression refrigerator circulates 4.5 kg of NH3 per hour, | 15 condensation take place at 30°C and evaporation at -15°C. There is no under-cooling of the refrigerant. The temperature after isentropic compression is 75°C and specific heat of superheated…

Newton's Law of cooling states that the rate at which heat is lost by a heated body is proportional to the difference in temperature between the body and the surrounding medium. Match the following statements/phrases with the corresponding item in the drop down box. Choices in the box 1. In accordance with the stated law obove, we have the equation? 2. If a thermometer is taken outdoors where the temperoture is 5 deg C, from a room in which the temperature is 20 deg C and the reading drops 10 deg C in one minute, the working equation is? 3. In the obove problem, separoting the variables and integrating will result to? 4. In the obove problem, how long, in minutes, after its removal from the room will the reading be 6 deg C? 5. In the obove problem, ofter 30 seconds, whot will be the thermometer reading? 5.2 dT(body temp)/dt = k(Temp of medium - 5) dr(body temp)/dt = k(Temp of body - Temp of medium) Temp of body = Cenkt +5 2.5 13.7 dr(body temp)/dt = k(Temp of medium - Temp of body)…

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Task3

As an environmental engineer working for a consulting company you were asked to evaluate an existing water treatment plant for possible upgrade. One of the treatment unit processes you evaluated was the rapid mix tank. You had the following information. 2. Current average water flow rate 15 x 10' m'/d. Projected flow rate in 20 years 24 x 10' m'/d. Temperature of water varies from 12 to 20° C. No. of rapid mix tank = 1 Dimension of tank: water depth 2.1 m, width 2.1 m, length 2.1 m Tank is not baffled: Mixer is 4-bladed turbine with 45° pitched blade (N, = 1.27) Diameter of impeller 0.9 m Label on the motor: horsepower of motor 10 hp (1 hp 746 watts) rpm of blades = 120 rpm (assume a motor efficiency of 80%) Evaluate whether the rapid mix system (1) Is sufficiently designed for current use? If not, provide some remedies. (i) Will the current system be sufficient for the projected flow rate in 20 years? If not, what are some of your suggestions or additions to meet the projected flow?