The formula for heat q: Q=G-C-(tg-th).

Q=cm?tThis formula is used to calculate the amount of heat absorbed or given off by a substance Q is more than just the amount of heat given off, it also indicates the amount of heat absorbed. m is the mass of the substance (to be written in lower case) c is the specific heat capacity of the substance.

The amount of heat absorbed or released per kilogram of substance raised or lowered by 1℃. △ t is the amount of change in the temperature of the object in general the substance gives off heat the temperature decreases and absorbs heat the temperature increases.

Heat q introduction:

such as the heating system to the heat user to provide the same amount of heat Q, the temperature difference between the supply and return water Δt = tg-th and the amount of circulating water G proportional to the relationship. That is, the system's supply and return water temperature difference is large, the amount of circulating water is small, the pump's power consumption will be greatly reduced. Formula use: direct supply system or inter-supply system of the secondary pipe network, there are also operating temperature difference is too small.

The user's indoor heating system is generally designed according to the supply and return water temperature difference of 25 ℃, but the actual operation of the temperature difference are below 20 ℃, and some even only about 10 ℃. Therefore, there is a large amount of electrical energy waste. The energy saving potential of the secondary pipe network and indoor heating system is also very large.