Getting The Introduction to Domestic Solar Hot Water Systems - CSU To Work

To show the fuel savings accessible by using a warm water circulation system rather than a steam system, computations have actually been made for the systems displayed in Figs. 10 and 11. The warm water integrated heat and power generation system is represented schematically in Fig. 10. Figure 11 represents our model of a steam integrated heat and power generation system.

Each system provides 1,000,000 Btu of helpful heat and 110. 02 KW h of electrical energy. Column 1 in Table II shows that 24% more fuel is required by the steam system to supply the exact same power requirements as the warm water system. Fig. 10. Water system schematic for comparison of water and steam systems (see Fig.

Fig. 11. Steam system schematic for contrast of water and steam systems, (a) Back-pressure steam system, (b) Feedwater heating for (a). (c) Standard unit to supplement (a) and (b). TABLE II. Comparison of Water and Steam Systems, Location1234567891011I. Water system a. Substancea, FSSWHHHE b. Amount (pound)108010801080 c. Pressure psi (absolute)150017.

Temperature (F)1000220220 e. Enthalpy (Btu/lb)14901142188 f. Heat content (K Btu)16541609123420310313110001000110. 02 g. Electricity (k, W h)IIA. Steam system a. Substancea, FSSWSSWHE b. Quantity (lb)90590590590815815 c. Pressure [psia (outright)] 1500200200200 d. Temperature (F)1000549220549549100 e. Enthalpy (Btu/lb)149012951881295129568 f. Heat content (K Btu)138713491172170117105555100051. 66 g. Electrical energy (k, W h)IIB. Feed heating for IIA a.

Amount (pound)905161161161905 c. Pressure [psi (absolute)] 150017. 2 d. Temperature level (F)501000220220220 e. Enthalpy (Btu/lb)1814901142188188 f. Heat material (K Btu)2471624018430170 g. Electrical energy (k, W h)16. 40IIC. Standard system to supplement IIA and IIB a. Substancea, F f. www.distinctplumbing.com.au/ (K Btu)420 g. Electricity41. 96Total for IIA, IIB, and IIC20541000110. 02The warm water system model utilized here is an uncomplicated application of combined heat and power technology to a back-pressure turbine plan (see columns 111 which refer to Fig.

The steam system model, however, is made complex by the requirement for feedwater heating (no condensate is gone back to the steam integrated heat and power generation plant), and by the requirement for additional electrical generation to match the output of the warm water system. (This power output difference is made up by a conventional condensing-type electrical getting plant.) Thus, Fig.