Upload
satvinder-singh
View
254
Download
0
Embed Size (px)
Citation preview
8/2/2019 Practical Note Book
1/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
RAC LAB
EXPERIMENT:-1 Aim : - Study of various elements of a Mechanica l Refr igera to r system through cmodels / actual apparatus
Theory :-
1 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
2/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
2 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
3/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
3 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
4/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTYSIGNViva Voce Question:
1. What is the funct ion of Capil la ry Tube?2. What is the function of Thermostat?
3. Which material is used in the manufacturing of refrigerator parts?
4 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
5/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
EXPERIMENT:-2
Aim : - Study and performance of domesti c ref r ige ra to r
Theory :-
5 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
6/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Procedure : -
6 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
7/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Calculat ions:-
7 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
8/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Drawings :-
8 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
9/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTYSIGN
Viva Voce Question:1. What is COP of a Refrigerator?2. Which gas used in Domestic Refrigerators?3. What is the function of a compressor?
9 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
10/36
8/2/2019 Practical Note Book
11/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Working :-
11 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
12/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Procedure :-
Drawing :-
12 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
13/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Calculat ions:- The coefficient of Performance of Refrigerator is given by
COP = Heat absorbed in the Evaporator
Heat supplied in the GeneratorVapor Absorption Refrigeration Unit:-COP = TE * TG-TA
(TC- TE) TGWhere TE=Temp of Evaporator
TC=Condenser TemperatureTG=Generator TemperatureTA=Ambient Temperature
Temperatures in Kelvin k
13 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
14/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTYSIGN
Viva Voce Question:1. What is the di f f erence between Vapor absorpt ion and Vapor
compression?2. Why Ammonia is used in Electrolux Refrigerator?3. Which is better Vapor absorption or Vapor compression?
14 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
15/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
EXPERIMENT:-4
Aim : - Study of an Ice plant and vis i t to a Cold storage for study.
During the visit the students will study the following components/parameters in the ice plant/coldstorage:
1. Construction of the main components of refrigerating systems.2. Draw a detailed block diagram of the plant.3. Note down the capacity of each unit i.e. evaporator, compressor, condenser etc.4. Type of evaporato r , condenser , compressor , expansion val ves , contro l valves and mat
construction.5. Name of refrigerants primary and secondary and flow rates.6. Temperature and pressures in evaporators and condensers.7. Comparison between theoretical and actual COP of the system.8. Capacity control of the plant under various load conditions.9. Types of insulation materials used.10. Suggest various methods to improve plant performance.11. Comparison between ice plant and cold storage.
15 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
16/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
16 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
17/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
17 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
18/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Drawings :-
18 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
19/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
19 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
20/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTY SIGN
Viva Voce Question:1. Which type of Condenser is used in an Ice Plant?2. What is the function of Brine Solution?3. Which Refrigerant is used in an Ice Plant?
20 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
21/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
EXPERIMENT:-5
Aim : - Calculat ion/ Estimation of cooli ng load for large build ing.
Theory
21 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
22/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
22 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
23/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
23 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
24/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTYSIGN
EXPERIMENT:-6
Aim : - Visit to a central Air condit ion ing plant for study of processes for wintsummer ai r condit i on ing .
During the visit the students will study the following components/parametersin central air conditioning plant.
1. Draw a detailed block diagram of the plant.2. Construction of the main components of air conditioning systems.
3. Note down the capacity of each unit i.e. evaporator coil, compressor condenser etc.4. Type of evaporator, condenser, compressor, expansion valves, control valves and material used inconstruction.
5. Name of refrigerant and flow rates.6. Temperature and pressure variation in evaporators and condensers.7. Comparison between theoretical and actual COP of the system.8. Capacity control of the plant under various load conditions in summer and winter.9. Types of insulation materials used.10. Suggest various methods to improve plant performance
24 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
25/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
25 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
26/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
26 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
27/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Drawings :-
27 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
28/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
28 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
29/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTYSIGN
EXPERIMENT:-7
Aim : - Study and performance of window type room ai r condi t ioner
Theory :-
29 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
30/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
30 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
31/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
31 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
32/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Drawing
32 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
33/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Procedure
33 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
34/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
Calculat ions:-COP =H1-H4
H2-H1
Compressor outle t = H2Evaporator out le t = H1Evaporator in le t = H4
Power Consumed by Compressor = VxI
OBSERVATION TABLE:-
Take the di f fe ren t pressures and temperature read ings: -
Sl . No. P1 P2 T1 T2 T3 T4 T5 T6
34 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
35/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
35 | P a g e R o l l N o . ________________
8/2/2019 Practical Note Book
36/36
GGS COLLEGE OF MODERN TECHNOLOGY KHARAR RAC LAB
STUDENT SIGN FACULTYSIGNViva Voce Question:1. Which type of Gas is used in an Air Condit ioner?2. What is Air Condit ion ing?
3. What is Dalton s Law?