Refrigeration and Air Conditioning Scheme of Work for SS 2 Federal

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Refrigerator and Air conditional scheme of work 2
Refrigerator and Air conditional scheme of work 2

Secondary School Entrepreneurship Curriculum. SS 2 Refrigeration and Air Conditioning Scheme of Work Federal –Schemeofwork.com

REFRIGERATION AND AIR CONDITIONING SS2 FIRST TERM

WEEKTOPIC / CONTENTACTIVITIES
1Energy Meaning of internal energyTeacher explain the meaning of internal energy while student participates actively in the discussion.
2Energy Enthalpy of fluid substances, its pressure, volume and temperature of internal energyTeacher state the properties of fluid substances while students participates
3Energy The P-h diagram of refrigerantsThe teacher plot and explain enthalpy and P-h chart for the students
4Power Meaning of powerThe teacher explain meaning of power and state its unit
5Power Calculation of power used by compressorThe teacher illustrates how power consumed by a compressor can be calculated from the formula i.e (P) = mass flow rate enthalpy (h) outlet enthalpy intet
6Power The unit of power and heat e.g. watts, killo watts joules, kilojoules etcStudents to calculate power consumed by a compressor.
7International practical temperature and pressure values The boiling point of oxygen\  18297 C, triple point of water –0.01 C, boiling point of water – 100 C, boiling point of silver – 960.80 C, boiling point of gold – 1063 CThe teacher explain the need for standardized temperature and pressure values of silver, gold, water etc. while the students participate actively in the discussion
8International practical temperature and pressure values Uses of suction and high pressure gaugesThe teacher demonstrates how suction and high pressure gauges are used to determine performances of refrigerants
9Air conditioning process Psychometric properties of airThe teacher explains psychometric properties of air i.e heating, cooling etc, while the students take note of the correct sequence
10Air conditioning process The process of air conditioning e.g heating , cooling etcThe teacher explains psychometric properties of air i.e heating, cooling etc, while the students take note of the correct sequence
11Air conditioning process Latent and sensible heat, saturated and superheated vapourThe teacher explain the latent heat, saturated air etc while the students read properties diagram
12Air conditioning process Psychometric properties diagramThe teacher illustrate the reading of a property diagram to the student  
13 – 14Revision and examsRevision and exams

Secondary School Entrepreneurship Curriculum. SS 2 Refrigeration and Air Conditioning Scheme of Work Federal –Schemeofwork.com

REFRIGERATION AND AIR CONDITIONING SS2 SECOND TERM

WEEKTOPIC / CONTENTACTIVITIES
1Refrigerant flow controls Types of refrigerant flow controlTeacher list and explain different types of flow controls for the students to identify
2Refrigerant flow controls Construction of refrigerant flow control e.g. thermostatic Ex valveautomatic Ex valvecapillary tubeThe teacher describe the construction of refrigerant flow controls while students note the constructional details
3Refrigerant flow controls Construction of refrigerant flow control e.g manually operated valvelow side float valvehigh side float valve.  The teacher describe the construction of refrigerant flow controls while students note the constructional details
4Refrigerant flow controls Operating / working principles of refrigerant flow control  Explain the operation of the refrigerant flow controls while the students notes the sequence
5Refrigerant flow controls Installation and service procedures.  The teacher demonstrate the installation and the services procedures
6Evaporators and condenser Design and construction of evaporators and condensers.  The teacher demonstrate the design and construction of evaporators
7Evaporators and condenser Heat load estimation of evaporators and condensers  The teacher demonstrates the design and construction of evaporators
8Evaporators and condenser Estimation of diameter and length of refrigeration piping  The teacher explain the estimation of diameter and length of refrigeration piping to the students to note
9Evaporators and condenser Servicing procedure for evaporators and condensersThe teacher demonstrate how to service evaporators and condensers with the appropriate tools and equipment
10Piping, ducting and trucking Piping condenser and evaporators  The teacher explain the concept piping, ducting and trucking and their advantages listing tools for the work
11 – 12Revision and examsRevision and exams

Secondary School Entrepreneurship Curriculum. SS 2 Refrigeration and Air Conditioning Scheme of Work Federal –Schemeofwork.com

REFRIGERATION AND AIR CONDITIONING SS 2 THIRD TERM

WEEKTOPIC / CONTENTACTIVITIES
1Piping, ducting and trucking Piping of condenser and evaporators  The teacher demonstrate piping of refrigerators and air conditioners
2Piping, ducting and trucking Ducting or trucking installation of the air conditioner  The teacher demonstrate trucking and ducting in air conditioner installation
3Piping, ducting and trucking Piping, ducting and trucking toolsTeacher list the tools for piping, ducting and trucking and their uses for students
4Insulation of air condition and refrigeration The need for insulation of refrigeration and air conditioning systems.  Teacher explains the need for installation of refrigeration and air conditioning system
5Insulation of air condition and refrigeration Types and function of insulating materials e.g. glass, rock, slag, ceramic, wool cork etc.  The teacher identifies insulating materials for the selection of the students
6Installation of air condition and refrigeration Properties of insulating materials.  The teacher states the different insulating materials for students to identify
7Insulation of air condition and refrigeration Procedures for insulating refrigeration and air conditioning systems.  The teacher demonstrate the procedures for installation of refrigeration and air conditioning systems for the students to practicalize on an existing system unit
8Fault diagnosis and troubleshooting Different method of diagnosing fault systematictrial and errorobservation  The teacher to explain the different methods while students participate actively
9Fault diagnosis and troubleshooting Common faults on refrigeration and air conditioning e.g leakage dead system, dead compressor, ineffective cooling, electric shock etc.  Teacher demonstrate techniques for carrying out repairs in the system for students to effect repairs on a system
10Fault diagnosis and troubleshooting Techniques of effecting repairs in refrigeration and air conditioner unit.  Teacher demonstrate techniques in fault finding in a unit (trouble shooting)
11Fault diagnosis and troubleshooting Techniques for trouble shooting in a given system.  Teacher demonstrate techniques in fault finding in a unit (trouble shooting)
12 – 13Revision and examinationRevision and examination

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