1.11 Technical design
Step 5 in Fig. 1-1, the product or system design, has not been discussed. The reason for this omission is that the system design is the subject of this book from this point on. This step is where the largest portion of engineering time is spent. System design as an activity lies somewhere between the study and analysis of individual processes or components and the larger decisions, which are heavily economic. Usually one person coordinates the planning of the undertaking. This manager normally emerges with a background gained from experience in one of the subactivities. The manager’s experience might be in finance, engineering, or marketing, for example. Whatever the original discipline, the manager must become conversant with all the fields that play a role in the decision-making process.
The word “design” encompasses a wide range of activities. Design may be applied to the act of selecting a single member or part, e.g., the size of a tube in a heat exchanger; or to the design of the system in which the heat exchanger is only one component. Design activities can be directed toward mechanical devices which incorporate linkages, gears, and other moving solid members, electrical or electronic systems, thermal systems, and a multitude of others. Our concentration will be on thermal systems such as those in power generation, heating and refrigeration plants, the food-processing industry, and in the chemical and process industries.
1.11 Technical design
Step 5 in Fig. 1-1, the product or system design, has not been discussed. The reason for this omission is that the system design is the subject of this book from this point on. This step is where the largest portion of engineering time is spent. System design as an activity lies somewhere between the study and analysis of individual processes or components and the larger decisions, which are heavily economic. Usually one person coordinates the planning of the undertaking. This manager normally emerges with a background gained from experience in one of the subactivities. The manager’s experience might be in finance, engineering, or marketing, for example. Whatever the original discipline, the manager must become conversant with all the fields that play a role in the decision-making process.
The word “design” encompasses a wide range of activities. Design may be applied to the act of selecting a single member or part, e.g., the size of a tube in a heat exchanger; or to the design of the system in which the heat exchanger is only one component. Design activities can be directed toward mechanical devices which incorporate linkages, gears, and other moving solid members, electrical or electronic systems, thermal systems, and a multitude of others. Our concentration will be on thermal systems such as those in power generation, heating and refrigeration plants, the food-processing industry, and in the chemical and process industries.
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