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Geankoplis 4th ed. 4.5‐4. Water flowing at a rate of 13.85 kg/s is to be heated from 54.5 to 87.8oC in a double‐pipe heat exchanger by 54,430 kg/h of hot gas flowing counterflow and entering at 427oC ( 1.005 / ).
The general function of a heat exchanger is to transfer heat from one fluid to another. The basic component of a heat exchanger can be viewed as a tube with one fluid running through it and another fluid flowing by on the outside.
Algebraic expressions for the correction factor Fhave been developed for vari- ous shell-and-tube and cross-flow heat exchanger configurations [1–3], and the results may be represented graphically. Selected results are shown in Figures 11S.1 through 11S.4 for common heat exchanger configurations.
Chapter. (4) Heat Exchanger. Goals: By the end of today’s lecture, you should be able to: Learn how to deal with heat exchanger problems. Learn how to design and select heat exchanger according to the application. What Are Heat Exchanger? Heat exchangers are units designed to transfer heat from a hot flowing fluid to a cold flowing fluid.
Thermodynamics is the study of how heat moves around in ‘macroscopic’ objects. Through-out these lectures, we will talk a lot about laws and models. Models are a simplified, empirical description of a real system which generally develops overtime as our knowledge progresses.
5.1 PRINCIPLES OF OPERATION OF A HEAT EXCHANGER. In a heat exchanger, the fluid flows can be performed in multiple arrangements. One can easily show that thermodynamically, the most efficient heat exchanger is the counter-flow heat exchanger (Figure 5.1.1), but other concerns than the thermodynamic effectiveness are taken into account when ...
Chapter 2 Classical Thermodynamics: The Second Law. 2.1 Heat engines and refrigerators. 2.2 The second law of thermodynamics. 2.3 Carnot cycles and Carnot engines. 2.4* The thermodynamic temperature scale. 2.5 Entropy and maximum entropy theorem. 2.6 Some examples involving entropy changes.
