How much steam can one ton of standard coal produce?
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How much steam can one ton of standard coal produce? There are two energy consumption indicators for steam boilers.: That is, coal consumption and electricity consumption, the measurement units are kg standard coal/ton of steam and kWh/ton of steam respectively. For actual operating steam boilers, the corresponding consumption indicators are generally: Coal consumption should be less than or equal to 133 kg standard coal/ton of steam ； Power consumption should be less than or equal to 98 kWh/ton of steam ； Of course, the above parameters will change due to operational reasons and design reasons. The coal consumption regulations of steam boilers in thermal power plants are very strict. If the energy consumption of the operator on duty increases, he will be punished, haha. It is easy to calculate how much steam a ton of standard coal can produce. There is currently no internationally recognized unified standard for the calculation of so-called standard coal. The calorific value of 1 kilogram of standard coal is calculated as 7,000 kcal in China, the former Soviet Union, and Japan, and 6,880 kcal in the United Nations. Various fuels and power energy are measured in terms of 7000 kcal, that is, the conversion coefficient of energy into standard coal = actual calorific value per kilogram of a certain energy / calorific value per kilogram of standard coal (7000 kcal). Calculated based on 0.8MPa (G) saturated steam, the theoretical energy consumption per ton of steam (calculation basis is 0°C water) is 662,766 kcal. Based on this calculation, the standard coal consumption per ton of steam is 94.7 kg of standard coal/ton of steam. If the steam boiler efficiency is 70%, the actual coal consumption is 135kg of standard coal/ton of steam, which means that a ton of standard coal can produce about 7 tons of steam.
What kind of stove, heating surface, etc. are not decided yet, let alone whether we can talk about the output.
1 Friend upstairs, the data provided by the poster comes from heat balance, which is theoretically balanced. 2 The actual evaporation amount is related to the exhaust gas temperature, heating surface layout, heat dissipation, etc. 3 But because the poster gave an efficiency of 70%, many factors have been taken into account.
We use a 35T chain furnace with a steam production capacity of 8T steam/standard coal.
study* Okay, now the thermal power plant comes to me to discuss the price, I want to talk carefully about it.
It's OK to estimate based on these numbers, not much different.
Our factory starts the boiler 4T chain-type low-pressure steam boiler, about 4T steam/1T standard coal
Yes, in the design, I always use the value of about 7 tons of steam per ton of standard coal. Of course, this is a theoretical value. In actual work, it has a lot to do with the level of the operator.