Determination method of saving energy by using heat pump to recover waste heat of circulating cooling water
A technology for circulating cooling water and determining methods, applied in heat recovery systems, energy-saving heating/cooling, heat pumps, etc., can solve the problem of no complete set of calculation methods, and achieve the goals of reducing coal consumption, scientific calculation, and reducing the loss of cold sources Effect
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[0058] For a specific condenser circulating cooling water supply flow Q in =7800t / h; condenser circulating cooling water return pressure P out =0.12MPa, return water temperature T out =42.8℃, condenser circulating cooling water return water H out =179.3kJ / kg; Condenser circulating cooling water supply pressure P out =0.28MPa, water supply temperature T out =16.7℃, condenser circulating cooling water supply H out =70.3kJ / kg, the system is calculated using the formula in step (1),
[0059] (1) Determination of the heat pump absorbing residual heat from the condenser circulating cooling water;
[0060] M y =Q out ·H out -Q in ·H in =Q out ·F(P out, T out )-Q in ·F(P in, T in )
[0061] After calculation, the heat pump absorbs the residual heat from the condenser circulating cooling water to be 236166kW;
[0062] (2) The determination of the reduction of the generating power of the unit after the condenser pressure is increased; it is calculated by the following formula:
[0063] ΔN...
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