ME495 Lab 4_SmithE

Part I : Analysis of heat exchangers in engineering applications(max. 5 pages)Select any thermal energy system you are interested. Describe the system and statehow the system works. The system should have at least one heat exchanger.Analyse the design of the heat exchangers and their functions in the system. Part Iand Part II are connected. Select a system you are able to complete the exergyanalysis in Part II.Part II: Exergy analysis & performance optimisation of heat exchangersfor a thermal energy system (max. 5 pages)Perform exergy analysis and performance optimization of the thermal energy systemin Part I.

12. Cylindrical metallic parabolic solar thermal concentrator A. Does not rotate. B. It rotates around one axis only. C. It rotates around two axes only. D. The concentration ratio achieved is: 500-1000. E. The concentration ratio achieved is: 50-100. F. The concentration ratio achieved is: 10-50. * A + D only. B +E only. B + F only. O C + E only

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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

XYZ Company Ltd has consulted your firm Zig-Zag Energy over an intention to generate electricity in Ghana. Being the senior project engineer for Zig-Zag Energy, management has asked you to prepare a detailed technical report in respect to the project. a) Discuss the major factors to take into consideration when consulting on such projects.                                                                                                           A tank containing air is stirred by a paddle wheel. The work input to the paddle wheels is 2000KJ and the heat transferred to the surrounding from the tank is 6000KJ. b) Determine the change in the internal energy of the system                                              There has been a sharp differences between the board of Blue-Blue Energy over which of the energy sources (hydroelectric power plant-HEP and Coal fired plant) is best for power generation. As an energy expert, you were confronted by the debating faction for your opinion. You…

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bliuzodt to mopolb 9. If machine parts are degreased by means of kerosene as shown in the diagram, how much kerosene make-up is needed per day? How much kerosene has to enter the degreasing vat per day? There are about 3 lb of grease per 100 lb of machine parts, and 60 tons of machine parts are processed each day. Five thousand pounds of kerosene (the 10% solution) are carried away by the machine parts each day but drip off and are caught and put back in the degreasing vat. Two hundred pounds of the 10% solution are lost each day from the vat by evaporation, spillage, or by being carried away.

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

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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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8.8. A solar collector and storage tank, shown in Fig. 8-15a, is to be optimized to achieve minimum first cost. During the da Hide image transcript 8.8. A solar collector and storage tank, shown in Fig. 8-15a, is to be optimized to achieve minimum first cost. During the day the temperature of water in the storage vessel is elevated from 25°C (the minimum useful temperature) to tmax, as shown in Fig. 8-15b. The collector receives 260 W/m² of solar ener- gy, but there is heat loss from the collector to ambient air by convection. The convection coefficient is 2 W/(m² · K), and the average temperature differ- ence during the 10-hour day is (25 + tmax)/2 minus the ambient temperature of 10°C. The energy above the minimum useful temperature of 25°C that is to be stored in the vessel during the day is 200,000 kJ. The density of water is 1000 kg/m³, and its specific heat is 4.19 kJ/(kg · K). The cost of the solar collector in dollars is 20A, where A is the area in square meters, and the cost…