• Gas turbines
• Reciprocating internal combustion engines
• Gas compressors
• Compressed air systems
• Process valves

Section 1

OHMP - 1 - 1 Reciprocating Compressors (pages 1 - 19)

OHMP - 1 - 2 Reciprocating Machine Theory (pages 1 - 51)
OHMP - 1 - 3 Rotary Compressors (pages 1 - 24)
OHMP - 1 - 4 Rotary Machine Theory (pages 1 - 39)
OHMP - 1 - 5 Air Compressor Systems (pages 1 - 46)

OHMP - 1 - TMA (1,2) Tutor Marked Assignment - Compressors and Compressor Systems

OHMP - 1 - TMA (3,4,5) Tutor Marked Assignment - Compressors and Compressor Systems

Section 2

OHMP - 2 - 1 Gas Turbines (pages 1 - 62)
OHMP - 2 - 2 Spark-Ignition Engines (pages 1 - 43)
OHMP - 2 - 3 Compression-Ignition Reciprocating Engines (pages 1 - 38)

OHMP - 2 - TMA (1) Tutor Marked Assignment - Internal-Combustion Power Units

OHMP - 2 - TMA (2,3) Tutor Marked Assignment - Internal-Combustion Power Units

Section 3

OHMP - 3- 1 Valve Design and Function (pages 1 - 40)
OHMP - 3- 2 Valve Characteristics (pages 1 - 24)

OHMP - 3- TMA Tutor Marked Assignment - Valves and their Uses

BREAKDOWN OF TMAs

OHMP - 1 - TMA Tutor Marked Assignment (1,2): This first TMA consists of 5 main questions with several parts of questions within each question covering all the themes of section 1 - Compressors and Compressor Systems.

Sample - Question 1

(a) Sketch a p - V diagram showing the following types of compression for a given mass of gas:

(i) adiabatic

(ii) isothermal

(iii) polytropic

(b) State which type of compression is the ideal for a gas compressor and explain why this cannot be achieved in practice.

Sample - Question 4

(a) With reference to a two-stage compressor explain what is meant by "an intercooler" and give three reasons for its use.

Explain, briefly, two methods of achieving intercooling.

(b) Sketch the associated two-stage p - V diagram with complete intercooling and compare it with the ideal theoretical p - V compression curve.

OHMP - 1 - TMA Tutor Marked Assignment (3,4,5): This second TMA consists of 8 main questions with several parts of questions within each question covering all the themes of section 1 - Compressors and Compressor Systems.

OHMP - 2 - TMA Tutor Marked Assignment (1): This third TMA consists of 6 main questions with several parts of questions within each question covering all the themes of section 2 - Internal-Combustion Power Units.

OHMP - 2 - TMA Tutor Marked Assignment (2,3): This fourth TMA consists of 7main questions with several parts of questions within each question covering all the themes of section 2 - Internal-Combustion Power Units .

OHMP - 3 - TMA Tutor Marked Assignment (2,3): This fifth TMA consists of 6 main questions with several parts of questions within each question covering all the themes of section 3 - Valves and their Uses.