How many countries submitted new or updated "nationally determined contributions" (NDCs) or pledges to the UN in relation to tackling climate change immediately prior to COP26? O 126 O 147 151 154
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- What specific changes to the Earth's greenhouse effect (atmospheric composition) affect global warming?OBB Occ ODD QUESTION 7 What is the entropy change for an energy reservoir at 700°C that transfers 1500KJ of heat to a heat engine? (5 Points) Please include your calculations in the PDE submission and mark your answer on Blackboard. QUESTION 8 Calculate the entropy change, in kJ/K, of 10 kg of silver when its temperature increases from 20°C to 100°C (cy of silver 0 235 kJkgk) (5 Points) Please include your calculations in the PDE submission and mark your answer.on Blackboard. QUESTION 9 An engineer claims that they designed a nozzle that increases the velocity of air flow from 50 m/s to 100 m/s. However, due to unforeseen issues, the exit velocity is measured as 75 m/s Find the isentropic efficiency of this nozzle. (5 Points) Please include your calculations in the PDF submission and mark your answer on Blackboard, QUESTION 10 Steam enters in an adiabatic turbine steadily at 4 MPa and 85% quality, Steam leaves the turbine as saturated vapor at 10°C If the mass flow rate of the steam is…The Paris Agreement is an agreement within the United Nations Framework Convention on Climate Change (UNFCCC), dealing with greenhouse-gas-emissions mitigation, adaptation, and finance, signed in 2016. How many signatories were there to this historic agreement? O 195 O 182 O 210 O 176
- Either for gas turbines OR for internal combustion engines, for the sustainable renewable energy future of Mauritius, explain which fuel(s) can be used and explain the combustion process with the help of relevant equations and diagrams. Show clearly how sustainability is achieved through the proper thermal engineering processes. Only few information provided in the images.describe how the Internal Combustion Engines (ICEs) (applicable to a particular purpose such as generators, vehicle, domestic device etc.) was improved in terms of sustainability in consideration to energy use and pollution effects. 1.Conclusions: Findings based on your current knowledge of thermodynamics should be expressed. Suggestion and implication on possible saving or future projection(s)Each of the following statements describes a way of coping with temperature variation. Which scenario most likely includes positive heat transfer through convection? That is, in which scenario does Hconvection most likely have a positive (+) sign? Hanimal = +SR + IRin – IRout +/- Hconvection +/- Hconduction - Hevaporation + Hmetabolic Select one: a. A rabbit basking in the sun early in the morning. b. A lizard resting in the shade in a hot desert in the middle of the day. c. A bumblebee vibrating its flight muscles before flight. d. A ground squirrel hibernating in the winter. e. A bird fluffing its feathers on a cold day.
- The combustion chamber of a diesel power plant has a theoretical heat value of 102 K Joules in a 98 25% combustion efficiency. What is the actual heat released in the systern in BTU? 90.44 BTU 94.99 BTU 98.55 BTU 99.98 BTUCreate an introduction about impacts of Biofuels production from various crops.Problems 1-8 are a continuation of HW #6. All answers should have 4 or 5 significant figures. For problems 1-8 please solve for u (specific internal.energy) and h (specific enthalpy), for water (H2O), given the following information. 1. H2O, T = 150°C, P = 50 bar 2. H2O, T = 200°C, P = 10 bar 3. H20, T = 120°C, v = 0.5000 m3/kg 4. H20, P = 5 bar, u = 0.7000 m/kg
- An energy audit for a hotel ( Anantara Iko mauritius resort and villa) including introductions, abstract, literature review, méthodologie, improvement, referencing . Around 10000 -15000A 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?Tutorial 01: From your previous study of thermodynamics and general knowledge define the following terms: 1. Energy 2. First law of Thermodynamics 3. Law of Conservation of Energy 4. Carnot Cycle 5. Closed system 6. Internal Energy 7. Second law of Thermodynamics 8. Rankine Cycle 9. Power Plant 10. Types of Energy 11. Turbine 12. Cooling Tower 13. Condenser 14. Evaporator 15. Saturation Temperature 16. Saturated Vapor 17. Super-heated Vapor 18. Degree of super-heated