The document summarizes a seminar presentation on a Refrigerant Recovery Unit developed by students at Umrer College of Engineering. The recovery unit was designed to recover and reuse refrigerants from appliances like air conditioners and refrigerators in order to reduce their environmental impact. It consists of components like a compressor, condenser, fan motor, filter drier and acrylic sheets. The presentation describes the purpose and specifications of each component as well as the objectives, assembly process, and maintenance of the refrigerant recovery unit. It aims to reuse refrigerants, reduce their atmospheric effects, lower appliance repair costs and help prevent ozone layer depletion.

1. Umrer College Of Engineering
Project Progress seminar 2
On
Refrigerant Recovery Unit
Department of Mechanical Engineering

2. Refrigerant Recovery Unit
Seminar submitted by :
• Khan Azaz
• Mohd Nasir
• Suraj Shende
• Amol Kalekar
• Sagar Singh Chauhan
• Shahnawaz Phansopkar
Guided by
Prof. B.T Dhekwar
(Final year sec. “B” Mechanical Dept.)

3. Introduction:
We introduce a new series of professional recovery system. The
recovery system are compact, lightweight and work with all
refrigerants. They are ideal for commercial, residential or
industrial appliance applications. As we know our refrigerant
system work refrigeration cycle which contains refrigerant and
that refrigerant contains harmful chemicals like
chlorofluorocarbons (CFCs). And if our system gets breakdown
we usually gives it to mechanic who releases the refrigerant in
atmosphere which is very harmful to human being as well as for
atmospheric conditions i.e : Ozone layer depletion. So our aim is
to recover that refrigerant filter it and reuse it again and again
with help of REFRIGERANT RECOVERY UNIT with no loss as we
are saving our environment.

4. Recovery Machine
Evaporator
Compressor
Condenser
Receiver
Manifold
Compressor

5. Making a Recovery Machine
• Components required
• Assembling the machine
• Operation
• Maintenance and reliability

6. Objectives
• To recover and reuse of refrigerants
• To reduce atmospheric effect done by the refrigerants
• To reduce the cost of the repairing of appliances which uses
refrigerants e.g. refrigerators and air conditioner
• To reduce depletion of ozone layer by refrigerants

7. Components needed
• Compressor
• Condenser
• Fan motor
• Fan blade
• Copper tubes
• Filter drier
• Gauges

8. Body components
• Acrylic sheets
• Plywood
• Hinges
• Nuts and bolts

9. compressor
• A gas compressor is a mechanical device that increases the pressure of a gas by
reducing its volume
hermetically sealed
The hermetically sealed reciprocating compressor is widely used for the refrigeration
and air conditioning applications. You can find it in all the household refrigerators,
deep freezers, window air conditioners, split air conditioners, most of the packaged
air conditioners.
FEATURES
quantity required 1
capacity high pressure
power 230 V, single
phase.

10. condenser
• A condenser is a device or unit is used to condense a substance from its
gaseous to its liquid state, typically by cooling it. Condenser is typically a
heat exchanger which have various designed and come in many sizes
ranging from rather small (hand-held) to very large industrial-scale unit
used in a plant process.
FEATURES
qty. required 1
weight (LBS) 1000

11. Fan motor
• An internal fan cooled electric motor is a self cooling motor. Fan cooled
motors features an axial fan attached to the rotor of the motor that spins
with the motor, providing increased airflow to the motor’s internal and
external parts which aids in cooling.
features
qty. required 1
weight (LBS) 600
capacity high pressure
power 230 V, single
phase, 40amp
1/83 HP, 50HZ
1360 RPM.

12. Filter drier
• Filter-driers are a key component in any refrigeration or air conditioning
system. A filter-drier in a refrigeration or air conditioning system has
two essential functions: one, to adsorb system contaminants, such as
water, which can create acids, and two, to provide physical filtration.
Evaluation of each factor is necessary to ensure proper and economical
drier design.
features
qty required 1
weight (LBS) 2.71

13. Acrylic sheet
• Acrylic sheet is a material with unique physical properties and
performance characteristics. It weighs half as much as the finest optical
glass, yet is equal to it in clarity and its up to 17 times more impact
resistance
features
qty. required 1
thickness 0.30 inch

14. Technical details
Components Technical Specification
refrigerants Recovers commonly used CFCs HCFCs or
HFCs including blends such as R134A and
R22A
weight Approx (28 kg)
dimensions Approx (1.9 inch. L* 1.8 inch. W * 1.1
inch. H)
Gauge ranges Low pressure hg vac-0-120 psig
High pressure 0-500 psig
compressor 230V, single phase, 50 hz
power 130 VAC, 60 hz, 10 amps
Fan motor 230v, 50 hz, single phase 40 amp, 1360
rpm, 1/83 HP Aw
Refrigerator or air conditioner 230V, single phase, 50 Hz

15. References
The deadline for mandatory recovery of R-134a was November
15,1995. After that date, became illegal. Recycling of R-134a,
using EPA-approved equipment, became mandatory on January
29,1998
Timothy A. Zilke
President, ASE(AUTOMOTIVE SERVICE EXCELLENCE)
The introduction of new refrigerants in 1930 was the beginning of
use of Chlorofluorocarbon (CFC) and hydro chlorofluorocarbon
(HCFC) (Granryd E et al., 2003). Though these refrigerants were
safe, CFCs were found to deplete the ozone layer and have high
global warming potential.
Jigme Nidup
Stockholm, 2009

16. Thanking note,
Prof. B.T Dhekwar
…..We will give our level best