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Utilizing Design Sheets in Design of Energy and Thermal Systems

Abstract

In designing an energy system such as a steam power plant or a solar water heating system, an engineer is required to select and size many different components such as pumps, turbines, and solar panels. Proper selection and sizing of these components require understanding of materials covered in basic engineering science courses such as thermodynamics, heat transfer, and fluid mechanics. Moreover, the engineer must have knowledge and understanding of the overall system, the role of each component in the system design, and the interactions among different components. In addition, the selection and sizing process must conform to and follow industry standards and recommendations. As a result, many manufacturers provide design sheets to facilitate the design and selection process of their products. Even though the use of design sheet is prevalent in industry, many engineering textbooks in thermal/fluid sciences do not include or even describe them. This paper provides descriptions of some design sheets relevant to design of thermal and energy systems, and how they can be used in courses such as fluid mechanics, design of thermal systems, energy engineering, and energy conversion systems.

Introduction

For a practicing engineer in industry, it is common practice to be asked to choose or select a component to replace or upgrade an existing system. As an example, an engineer is asked to replace a pump supplying make-up water to the cooling tower in order to increase the flow rate of the make-up water supply. The engineer will need to evaluate several pumps in order to meet the flow rate required as well as other considerations such as size and cost of the pump, pressure drop in the piping system that the pump needs to overcome, selection of a motor to drive the pump, etc. The selection of pump will be commonly done using the design sheet or selection procedure provided by the manufacturer of the pump. The situation is similar for an engineer designing an energy or thermal system such as a solar water heating system. He/she is required to select solar panels, one or more water storage tanks, a pump, and other items such as a temperature controller, valves, piping, etc for the system in question. Proper selection and sizing of these components require understanding of materials covered in basic engineering science courses such as thermodynamics, heat transfer, and fluid mechanics. Moreover, the engineer must have a thorough knowledge and understanding of the overall system, the role of each component in the system design, and the interactions among different components. In addition, the selection and sizing process must conform to and follow industry codes, standards, and recommendations. As a result, many manufacturers provide design sheets to facilitate the design and selection process of their products. Even though the use of design sheets is prevalent in industry, many engineering textbooks in thermal/fluid sciences do not include or even describe them. In the author’s opinion, it is important for students to learn the use of design sheets as it

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Aung, K. (2007, June), Utilizing Design Sheets In The Design Of Energy And Thermal Systems Paper presented at 2007 Annual Conference & Exposition, Honolulu, Hawaii. 10.18260/1-2--2425