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¿-(from h) is greater than ¿(from v) at ISO and 160°C, so the solution cannot lie between these two temperatures. However, at 170°C, *(from h) is smaller than jc(from v), so the solution must lie between this temperature and 160°C. Linear interpolation provides the final solution.

¿-(from h) is greater than ¿(from v) at ISO and 160°C, so the solution cannot lie between these two temperatures. However, at 170°C, *(from h) is smaller than jc(from v), so the solution must lie between this temperature and 160°C. Linear interpolation provides the final solution.

¿(from v)-0.388 = *(from h)-0.396 0.494 - 0.388 ~ 0.381-0.3%

This problem illustrates the potential benefits of a computer program containing the thermodynamic data for water in the steam tables and algorithms for calculating the state of the system given any two properties (or one property and the quality). Fortunately, a number of sites on the Web provide numerical values of water properties just by entering the conditions (e.g., saturated steam at 150°C).

2.7.2 Single-Phase Superheated Vapor—Compressed Liquid

Tables 2.3 and 2.4 list the properties of water in its single-phase superheated vapor and compressed liqjiid states. The term "superheated vapor" means that the vapor temperature is greater than the saturation temperature at a specified pressure. The isobars KL and GH in the T-v diagram of Figure 2.9 arise from the entries and equations in Table 2.3. The term "compressed liquid" applies to liquid water at temperatures below the saturation temperature at a specified pressure. Alternatively, if the temperature is specified, a compressed liquid is one that is overpressurized compared to the saturated liquid. The numbers in Table 2.4 correspond to the isobars

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Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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