For a hot pot, the calorie of eating natural ingredients such as sliced meat, vegetables and tofu is almost 874 calories. If you eat quick-frozen meatballs, the calories are about 265,438+05 calories, and the calories can be cut off immediately. Add a spoonful of sesame sauce or sand tea sauce, drink two bowls of soup, a sweet drink, and order dessert after dinner. The calorie of eating a hot pot is at least 1500 calories. If the spicy hot pot is full, a meal can consume up to 3900 calories.

Example of heat formula:

For example, the design heat load of a heating system is 7MW, and the temperature difference between supply and return water of primary network is Δ t = 30℃. After calculation, the circulating water volume is 200 m/h. The diameter of the external network is DN200. Look-up table shows that the resistance coefficient along the way is 170Pa/m/m ... According to hydraulic calculation, the total resistance loss along the pipe network is 50m water column. If the water pump is selected according to this flow and lift, the power of the water pump is 45KW.

If the temperature difference between supply and return water is increased from Δ t = 30℃ to Δ t = 60℃, the circulating water volume can be reduced to100 m/h. According to the look-up table of external network pipe diameter DN200, the resistance coefficient along the way is 42 Pa/m. Compared with the resistance coefficient when the temperature difference is 30℃, the total resistance loss along the pipe network should be H=. According to the flow rate 100 m/h and the lift 12.5 m, the pump power is only 5.5KW.

Refer to the above content: Baidu Encyclopedia-Heat Calculation Formula