HW1 Study Guide

2a

2. Conduction is function of the environment's humidity and the airflow/exchange next to the skin. True False 3. One of the amendments to Regulation 854 that came into force in 2016 is strengthening and improving requirements regarding high visibility safety apparel. True False 4. Cold stress is also known as "thermal strain". True False 5. Dynamic force presents a greater risk of strain than static force. True False 6. In underground climate, auto compression of air adds 4-60C/km to the wet bulb temperature. True False An industrial machinery gives out 112 dBA of noise 1 m away from the source, which requires double hearing protection. You are a worker performing work for 8-hrs around the machinery and you are required to wear double hearing protection. An earplug which has an NRR of 29 dB and an earmuff with an NRR of 31 dB. The suggested derrating percentage of the hearing protections are 60% and 55% of the NRR, respectively. Does the double hearing protection reduce the noise level…

University of Basrah - College of Engineering Department of Mechanical Engineering Subject: Power Plant I Class: Fourth Examiner: Dr. Ahmad A. M Alsahlani Notes: Giving Sketches is compulsory wherever needed (Total Ma Q1] Answer the following que Exam: Final-Exam Date: 11/09/2023 Time: 2 Hours 1- Explain how the Geothermal Energy can be utilized to generate electricity. 2- State the two classifications of energy sources and give three examples for each. 3- State three advantages and three disadvantages of using Gas Turbine Power Plant. 4- What are the reasons that lead to a deviation in the ideal gas turbine cycle? 5- Draw a block diagram for a regenerative Rankin Cycle using one open feed water heater. Q2] A closed cycle gas-turbine power plant has a pressure ratio of 10. The air temperature is 35 C at the compressor inlet and 1127 C at the turbine inlet. The received energy at the Qi combustion chamber is 794 kJ/kg. Assume the isentropic efficiency of the turbine is 95%. Determine…

Please answer within one hr i will give good rating.

i. Identify typical disadvantages lassociated with Solar PV ii. Identify typical disadvantages associated with Wind Power |1. Knowledge and understanding of Disadvantages of Renewable Technologies ii. Identify typical disadvantages associated with Hydro Power iv. Identify typical disadvantages associated with Biomass (and some other forms of renewable power)

A student develops an engine that is believed to meet all state standards for emission control. The new engine’s rate of emission is given by E(t)=2t2where E(t) is the emissions, in billions of pollution particulates per year, at time t, in years. The emission rate of a conventional engine is given by C (t) = 9 + t2 i. At what point in time will the emission rates be the same?ii. What reduction in emissions results from using the student’s engine?

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.

Why Blade Numbers are essential and needed to be considered in establishing the design of a wind energy conversion system (WECS) please answer at your own words and make it long essay if you can. Thank you so much!

MECT361 Mechatronics Components and Instrumentation Please solve the problem in keupord 0.Consider the Material Selection Design Problem for the FRAME of a Human Powered Road Vehicle. Define the selection criteria, assign weights (importance), and evaluate the following alternatives based on COST, WEIGHT, STRENGTH, AVAILABILITY, MANUFACTURABILITY, ASSEMBLY, TEST & MAINTENANCE, ENVIRONMENT & SUSTAINABILITY, SAFETY & RELIABILITY: a.Steel b.Aluminum c. Titanium d.Composite- CFRP

QUESTION 4 1. This question is about the section titled, Airplanes. Which of the following statement is NOT true according to this reading? The design known as "winglets" was shown to reduce fuel use by 5%. How an airplane operates with respect to taxi or take-off has an insignificant impact on the airplane fuel use. C C Jet biofuel is currently expensive and limited in supply. The goal of the Carbon Offset and Reduction Scheme of International Aviation (CORSIA) is

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?

B1

Project 1: Reciprocating/internal combustion engines are widely used as a portable electrical generator in many commercial and industrial applications. You are required to describe the operation sequence of different types of available engines and explain their mechanical efficiency. You have been asked to deliver a detailed technical report and show your approach in solving and discussing the following: 1. By constructing simple sketch, show the properties and characteristics of reciprocating/internal combustion engine of both spark ignition (SI) and compression ignition (CI). You must indicate the following, in case they are existed: a. Piston-cylinder parts, Top dead centre TDC, Bottom dead centre BDC, and Clarence volume. b. Intake vale, Exhaust Valve, Spark plug, Stroke displacement, Bore dimeter. c. Show the complete cycle of ideal Otto and Diesel cycles by means of P-V and T-S diagrams, showing on them the input and output heat and net output work, process type (isentropic,…

View Policies Current Attempt in Progress A High-Performance Engine. You and your team are tasked with evaluating the parameters of a high-performance engine. The engine compresses the fuel-air mixture in the cylinder to make it ignite rather than igniting it with a spark plug (this is how diesel engines operate). You are given the compression ratio for the cylinders in the engine, which is the ratio of the initial volume of the cylinder (before the piston compresses the gas) to the final volume of the cylinder (after the gas is compressed): VV, Assume that the fuel-gas mixture enters the cylinder at a temperature of 26.0 °C, and that the gas behaves like an ideal gas with y-7/5. (a) If the compression ratio is 14.9:1, what is the final temperature of the gas if the compression is adiabatic? (b) With everything else the same as in (a). what is the final temperature of the gas if the compression ratio is increased to 16.117 (c) Everything else being the same, for which compression ratio…

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…

Q3 (a) The employees involve in maintenance work of the sewerage tank experience risk of drowning due to either lack of oxygen or swallowing water. Applying the knowledge of risk at construction sites, write the causal factors that can cause drown at the sewerage tank maintenance work. (b) As a safety officer appointed at your company, you should know that the main objective of electrical safety is to protect human from electric shock, fire and burning effect resulted from contact with electricity. Select FIVE (5) factors to be considered for safe electricity usage at your work place and support your answer with explanations. It is known that the chemist is always work with a chemical substances. Identify and explain the health effects to the body if there is negligence when doing work involving chemicals.

Thermodynamics : Ideal Gas Cycle You have to make a SUMMARY OF FORMULAS (entire output must fit in ONE-PAGE ONLY of your chosen paper size) about Ideal Gas Cycles (Carnot, Brayton, Diesel and Otto). Your output must include SCHEMATIC DIAGRAM (T – S or P – V DIAGRAM), SUMMARY OF FORMULAS (Heat Added, Heat Rejected, Efficiency, Net Work, Important Constants, etc.).

as an aerospace engineering student, where do you utilize flight simulators?

thermodynamics   Ten kilogram of water us mixed with 12 kilogram of alcohol (SG=0.9).What is the specific gravity of the mixture, assuming that two fluidsmix completely.

Identification: Identify what is being asked. 1. Give the STP used in Thermodynamics.2. Enthalpy of an ideal gas is a function only of _____________.3. The theory of changing heat into mechanical work.4. Form of energy associated with the kinetic energy of the random motion of largenumber of molecules.5. Superheated vapor behaves _____________.

13. The amount of heat (Hth, thermal energy) stored in rocks, m = 500 kg, S = 840 J/(kg °C), Tfinal =50°C, Tinitial = 40°C is: ·Hth = 19*10E(6) Joules. ·Hth = 4.2 * 10E(6) Joules. %3D ·Hth = 4.2*10E(4)Joules. %3D

Bioengineering Q11

Q1) A plant discharges 4,000 gal/min of treated wastewater that contains 0.25 mg/L of PCB, (polychloronated biphenyls) into a river that contains no measurable PCBS upstream of the discharge. If the river flow rate is 1,500 cubic feet per second, after the discharged water has thoroughly mixed with the river water, what is the concentration of PCBS in the river in mg/L?

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…

A 60,000 ft2 building used 850,000 kWh of electricity and 900 Mcf of natural gas over the past 12 months. What is the Energy Use Index of the building? (Assume 1 Mcf= 1,037,000 Btu) a. 63.9 kBtu/ft2 b. 68.2 kBtu/ft2 c. 73.6 kBtu/ft2 d. 79.4 kBtu/ft2

Engineering Related problems: We assess the efficiency of two methods of chemical energy storage.I. First, we store the energy as natural gas (methane, CH4) and utilize it via combustion. We assume thefollowing efficiencies: electrolysis 70%, water-gas shift reaction 75%, natural gas storage andcirculation 80%, Fischer–Tropsch reaction 80%, combustion 75%. Based on these efficiencies, calculatethe efficiency of the total process.II. Secondly, we want to store the energy as hydrogen and utilize it via a fuel cell. We assume thefollowing efficiencies: electrolysis 70%, hydrogen storage and circulation 70%, fuel cell 50%. Calculatethe efficiency of the total process.III. Which of the two methods would you choose to use the hydrogen produced during electrolysis?

Principles of Chemical Engineering – First Year 10. A solution in water contains 1.704 kg of HNO3/kg H;0, and the solution has a specific gravity of 1.382 at 20°C. What is the mass of HNO; in kg per cubic meter of solution at 20°C? Lecture: 3