D, E, F? Thank you a)Why NOx emissions are higher in diesel engines? b)Explain the changes...

D, E, F? Thank you

a)Why NOx emissions are higher in diesel engines?

b)Explain the changes required for using an air conditioning system for a room as a refrigeration system for the storage of frozen food.

(c)If the aim is to reduce CO2 emissions from a car, would you select an engine operating on an Otto cycle or a Diesel cycle? Discuss your selection.

(d)Explain the detailed operation of the Atkinson cycle, and explain why it has been used for many hybrid electric vehicles. Why does the Atkinson cycle have a higher efficiency than the Otto cycle?

(e)In a Rankine cycle, why is it worth bleeding off some of the steam before the HP turbine to preheat the steamentering the boiler?

(f)Explain adiabatic flame temperature

Expert Solution

Hello student as you asked for que d,e & f so I had provided required details for your question so please rate me thumbs up for the solution.

samet mamat answered 2 years ago

Q1. a. Given a schema R (A, B, C, D, E, F) and a set F...

Q1. a. Given a schema R (A, B, C, D, E, F) and a set F of functional dependencies {A → B, A → D, CD → E, CD → F, C → F, C → E, BD → E}, find the closure of the set of functional dependencies ?+ b. Given a schema R = CSJDPQV and a set FDs of functional dependencies FDs = {C → CSJDPQV, SD → P, JP → C, J → S} 1. Find...

If there are 7 total notes C, D, E, F, G, A, and B and if...

If there are 7 total notes C, D, E, F, G, A, and B and if a five-note melody is selected at random (so that all melodies counted in part (a) are equally likely to be chosen), what is the probability that the melody will include exactly two “A” notes, but no other repeated notes? (A few allowable examples: AACEG, ACAEG, DFACA, EAABC, etc.)

Consider the following relational schema and set of functional dependencies. S(A,B,C,D,E,F,G) D → E E →...

Consider the following relational schema and set of functional dependencies. S(A,B,C,D,E,F,G) D → E E → B C → FG BE → AC Is the decomposition of S into S1(E,G,F) and S2(A,B,C,D,G) a lossless join decomposition? Choose one of the following queries as your answer: SELECT ’lossy’; SELECT ’lossless’;

Using the thermodynamic cycles, explain the difference between the heat engine (Carnot cycle) and Otto and Diesel engines. Why do Diesel engines require different types of fuel than the regular Otto Engine?

Problem 5 CH5/5ptsUsing the thermodynamic cycles, explain the difference between the heat engine (Carnot cycle) and Otto and Diesel engines. Why do Diesel engines require different types of fuel than the regular Otto Engine?

There are four critical paths in a network. A-B-C-D-E, A-F-E, A-B-H-J-K-E and A-S-T-E. Each activity in...

There are four critical paths in a network. A-B-C-D-E, A-F-E, A-B-H-J-K-E and A-S-T-E. Each activity in this network can be crashed by a maximum of 2 weeks. The crashing cost (per week), for the first week, for activity A is: $540, E is $545 and all other activities is : $135 (per week per activity). The crashing cost, second week and onwards, for activity A is $1080 per week, E is $1350 per week and for all other activities is...

Seven people (A,B,C,D,E, F, and G) are seated in a row. Suppose A,B, and C are...

Seven people (A,B,C,D,E, F, and G) are seated in a row. Suppose A,B, and C are freshmen, D and E are sophomores and F and G are juniors. How many arrangements are possible if: (a) D and F must sit together? (b) A and C must not sit together? (c) All freshmen must sit together? (d) All freshmen must sit together, all sophomores must sit together, and all juniors must sit together? (e) Exactly two people sit between A and...

A restaurant has dishes A, B, C, D, E, F and G The owners anticipate that...

A restaurant has dishes A, B, C, D, E, F and G The owners anticipate that dishes will be ordered in the following proportions: 30% (A), 15% (B), 20% (C), 5% (D), 8% (E), 12% (F) and 10% (G). The number of orders placed during the first two days of business was 75 (A), 60 (B), 50 (C), 14 (D), 20 (E), 40 (F), and 41 (G). State and conduct the appropriate hypothesis test to determine whether there is...

Consider the relation R= {A, B, C, D, E, F, G, H} and the set of...

Consider the relation R= {A, B, C, D, E, F, G, H} and the set of functional dependencies: FD= {{B}—> {A}, {G}—> {D, H}, {C, H}—> {E}, {B, D}—> {F}, {D}—>{C}, {C}—> {G}} 1) Draw FD using the diagrammatic notation. 2) What are all candidate keys for R? 3) If delete {C}—>{G} and change {C, H}—> {E} to {C, H}—> {E, G}, what are all candidate keys for R

A = -7.25, B = $200, C = $80, D =$140, E= $120, F= $40 and...

A = -7.25, B = $200, C = $80, D =$140, E= $120, F= $40 and G = $20. You are a profit-maximizing firm. Suppose there are two types of customers (50% of 1 type, 50% of the other) who shop in your specialty clothing store. Consumers of type R will pay __B__ for a coat and __C__ for pants. Consumers of type S will pay __D__ for a coat and __E__ for pants. Your firm faces no competition and...

A. Beta emission is associated with: (SELECT ALL THAT APPLY) a, b, c, d, e, f,...

A. Beta emission is associated with: (SELECT ALL THAT APPLY) a, b, c, d, e, f, g B. Electron-capture is associated with: (ALL THAT APPLY) a, b, c, d, e, f, g C. Alpha emission is associated with (ALL THAT APPLY) a, b, c, d, e, f, g D. Positron emission is associated with (SELECT ALL THAT APPLY) a, b, c, d, e, f, g a. increase in mass number b. emission of a photon c. decrease in mass number...

Question