Heat source of KENKI DRYER, which is a drying apparatus, is saturated steam. To convert the amount of steam consumed for its drying process into energy amount, “Conversion method of steam” issued by METI (Ministry of Economy, Trade and Industry) is a good reference.
Specific enthalpy of steam is used for the calculation of amount of steam consumed.
The enthalpy of a system suggests internal heat energy that the system has, and is equal to the system’s internal energy plus energy of expansion and contraction.
Enthalpy per unit of mass
Amount of energy released to outside, or taken in from outside
Saturated steam is in saturated state, which is a state that both liquid and gas phases exit together at the same time. On the “Steam tables”, values of both saturated water (liquid part) and saturated gas (gas part) are described. The steam tables have single quotation mark (‘) for values of saturated water, and double quotation mark (“) for saturated gas.
The “Steam table” here suggests JSME (Japan Society of Mechanical Engineers) Steam Tables.
1. Steam energy , Saturated steam
The following is extracted from the steam tables and calculated.
|steam pressure||steam temperature||h”：Specific enthalpy （Saturated steam）||ｒ：Specific enthalpy （Latent heat of vaporization）（1）|
|（1）ｈ”（Saturated steam Specific enthalpy）－ｈ’（Saturated water Specific enthalpy）＝r（Latent heat of vaporization Specific enthalpy)|
2. Conversion formula
|Amount of steam energy ＝||[h”（Specific enthalpy / Saturated steam）|
|－||（ 1- Dryness of steam ）||×||ｒ（ Specific enthalpy /）]|
|Steam energy amount＝||h”（ Specific enthalpy / Saturated steam ）||×||蒸気量|
3. Caluculation example
|Dryness of steam||0.8|
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Sludge drying, low material slurry drying and organic waste drying with high moisture contents can be done easily, safely, surely and with low-cost.
|Please consider KENKI DRYER for drying of sticky materials, adhesive materials and materials in liquid state that no other dryer can deal with.|
|Initial, running and maintenance costs are low because of its simple structure based on internationally patented technology.|
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