Refrigeration and Air Conditioning ME-322

Course Title:             Refrigeration and Air Conditioning

Course Code:            ME-322

Course Duration:      1 Semester

Credit Hours:            3  

 Teacher:                    Engr. Muhammad Ashiq
                                     Department of Mechanical Engineering 

                                     Phone/email:[email protected]

Specific Objectives:

  • To understand refrigeration systems.
  • To develop basic ideas about cycle analysis and designing parameters pertaining to refrigeration and air conditioning systems
  • To deal with the problems related to architectural, building services, HVAC, equipment

 

Course Outline:

Refrigeration cycles

Reversed Carnot and Joule Cycles, vapour compression and vapour absorption systems, COP, pressure- enthalpy chart, types of refrigerants, air cycle refrigeration, multiple effect compression, multi-stage compression, heat pumps

Air Conditioning

Indoor and outdoor air conditions, comfort conditions and comfort zone, indoor air quality, psychrometry

Central air-conditioning system

Essential components of central air-conditioning plant, water chiller and water heater, air handling unit, chilled water and hot water recirculation system, return air supply system, fresh air supply system air mixture chamber, supply fan, air dust cleaning and bacteria removal, air supply and air return terminals, diffusers and grilles, CFM rating and tons of air-conditioning of a central air-conditioning plant.

Load calculation and system design

Cooling and heating load calculation procedures, duct sizing and piping design, pumps and fans selection, air ventilation: calculation of fresh air supply of a multi-story building, air handling unit for untreated fresh air, forced convection-based air ventilator design.

Recommended Books:

1. Heating, Ventilating, and Air-Conditioning Analysis and Design, By McQuiston, Parker and Spitler John Wiley & Sons

2. Heating and Cooling of Buildings, By Ed. Kreider, Curtiss & Rabl McGraw-Hill

3. Principles of Refrigeration, By Dossat, R. J., John Wiley

4. HVAC Systems Design Handbook, By Haines, Roger W. Wilson, Lewis McGraw-Hill Companies

5. ASHRAE Handbook

CLO

Statement

Domain

Level

PLO

1

Recall the basic knowledge of refrigeration and air conditioning and to identify various components of these systems.

Cognitive

C1

PLO 1

2

Explain the fundamental concepts (terminologies, processes and principles) of refrigeration and HVAC and compare various commonly used refrigeration and air conditioning cycles/systems.

Cognitive

C2

PLO 1

3

Solve the problems related the refrigeration and air conditioning processes affecting thermal comfort in AC zones through Psychrometry and apply the laws of refrigeration and air conditioning and implement ASHRAE standard to perform the heating and cooling load calculations for residential and public buildings.

Cognitive

C3

PLO 2

Components of Assessment

 

            Assessment during the semester      = 20 marks

  • Assignments / Class Participation / Attendance        =10     
  • Quizzes / Semester Project                             = 10

 

            Mid Term /Term Paper                   = 30 marks

            End Term Examination                    = 50 marks

            Total                                                   = 100 marks

 

Semester Start Date:  13-01-2020

Class Timings:                      

Tuesday:         11:00AM - 12:30PM

Wednesday:    11:00AM - 12:30PM

Course Material

Other Courses by Engr. Muhammad Ashiq