Question

In: Mechanical Engineering

Graph 2 Substance Ammonia This is an hypothetic Refrigeration cycle. Draw the schematic for this case....

Graph 2

Substance Ammonia

This is an hypothetic Refrigeration cycle.

Draw the schematic for this case. (evaporator, compressors ...)

Sketch the T-s and P-v diagram. 30 points.

Process

State 1 leaving the evaporator at -20 C and 175 kPa

State 2 leaving the Low pressure isentropic compressor at 5.5 bar and enter the high pressure irreversible compressor to state 3

State 3 135 C, 20 bar

State 4 isobaric condenses process (3-4) to saturated liquid

State 5 (4-5) expansion valve to 5.5 bar and enter to a flash chamber

The flash chamber receive the liquid-vapor mixture and separate the vapor and liquid. Its return the vapor to the High pressure compressor entry and the saturated liquid is tag as state 6

State 6 isobaric process to saturated liquid

State 7 (6-7) expansion valve to low pressure line enter the evaporator

Expert Solution

State 1 is superhit ammonia which enter in low pressure compressor and reach at state 2.state 2 combiend with saturated vapour of 5.5 bar.and after it send into high pressure compressor . high pressure compressor exit is state 3 .state 3 to state 4 condensor is available.state 4 to state 5 expander or throtling valve available .state 5 we place a flash chamber which separate this mixture into liquid and vapour .this saturated liquid send to to Expander and its exit known as state 7 and this saturated vapor combined with superheated vapour and become inlet of high compressor.

state 2 to state 1 is known for evaporator.

samet mamat answered 11 months ago

Five kilograms of ammonia (NH3) undergo a refrigeration cycle detailed as: • Process 1-2: isothermic expansion...

Five kilograms of ammonia (NH3) undergo a refrigeration cycle detailed as: • Process 1-2: isothermic expansion from saturated vapor at 10ºC, to P = 3 bar with Q = 400 kJ. • Process 2-3: isochoric cooling to 0 ◦C. • Process 3-4: isobaric compression. • Process 4-1: isochoric heating. Calculate: a) the P −v and T −v diagrams. b) the states table detailing P, v, T and u. c) the process table for Q, W and ∆U. d) the performance...

4: Consider a vapor refrigeration cycle. a: Draw the T-s diagram of the reversed Carnot Cycle...

4: Consider a vapor refrigeration cycle. a: Draw the T-s diagram of the reversed Carnot Cycle and describe what kind of problem each process of the cycle has explicitly. (We use the mixture of liquid and vapor as its working fluid.) b: Draw a T-s diagram in the ideal refrigeration cycle and label each process explicitly. Write down the COP in terms of enthalpy. c: There are the multipurpose refrigeration system and the multistage refrigeration system to improve the ideal...

The isentropic efficiency of an ammonia, NH3, refrigeration plant is 0.88. The ammonia enters the compressor...

The isentropic efficiency of an ammonia, NH3, refrigeration plant is 0.88. The ammonia enters the compressor as dry saturated vapour at -16 ? and leaves the compressor in a superheated state at 11.67 bar. The refrigerant is then condensed and undercooled by 4K at constant pressure before being expanded at -16 ?. (NEED TO USE STEAM TABLES FOR NH3, PLEASE ONLY ANSWER IF YOU HAVE A GOOD UNDERSTANDING OF REFRIGERTION) a)Draw a schematic of the plant and the cycle on...

(c) Draw a schematic graph of resolved shear stress versus shear strain for a single crystal...

(c) Draw a schematic graph of resolved shear stress versus shear strain for a single crystal of a pure metal. Clearly label the point of the critical resolved shear stress and the three subsequent stages of dislocation behaviour. Describe these three stages. (d) Explain why the critical resolved shear stress is much lower than the theoretical strength, based on the force required to break atomic bonds within the structure.

Draw water and ammonia cycle in Einstein refrigerator, from to condenser + generator, mark and name...

Draw water and ammonia cycle in Einstein refrigerator, from to condenser + generator, mark and name each component

Draw the graph of all of the hormones involved in the female menstrual cycle. Using this...

Draw the graph of all of the hormones involved in the female menstrual cycle. Using this graph, describe what is occurring during the ovarian cycle and the uterine (menstrual cycle). Some things to consider in your description include

Draw a graph (only schematic) showing the cumulative percent passing vs. sieve size relationship of well-graded,...

Draw a graph (only schematic) showing the cumulative percent passing vs. sieve size relationship of well-graded, gap-graded, open-graded, and one-sized aggregate in 0.45 power scale. This graph should be qualitative in nature.

Draw a 1). position graph, 2). velocity graph, and 3). acceleration graph of a person standing...

Draw a 1). position graph, 2). velocity graph, and 3). acceleration graph of a person standing one second, then goes down into a squat for three seconds, back up for one second and then a one second stand for the first rep. 2nd rep- this person goes back down for three seconds, and then has a one second pause at the bottom of the squat, and then back up for one second.

A chorded cycle in a graph is a cycle in the graph with one additional edge...

A chorded cycle in a graph is a cycle in the graph with one additional edge connecting two of the cycle vertices. Prove that every graph with minimum degree 3 contains a chorded cycle as a subgraph. (Hint: Consider a longest path in the graph. What does it tell you when a vertex is the end of a longest path? )

Why doesn't ammonia,NH3 form a di-ammonia compound similar to diborane?(Draw a di ammonia structure).