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2-10.The Psychrometric charts

Psychrometric charts A psychrometric chart for sea-level elevation Terminology A psychrometric chart is a graph of the thermodynamic parameters of moist air at a constant pressure, often equated to an elevation relative to sea level. The ASHRAE-style psychrometric chart, shown ...

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2-8.The principle of the Psychrometer

The principle of the Psychrometer - Science of the drying

If alcoholic disinfection is carried out before injecting, when alcohol evaporates, he will have a cold feeling to because heat is taken. In order for a liquid to turn into gas, energy is required and this energy is called evaporation ...

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2-7.Psychrometer and Hygrometer

2-7-1.Spirits of Dry and Wet Líu Ān (Chinese: 劉安, c.179 – 122 BC) was a Chinese king and advisor to his nephew, Emperor Wu of Han (武帝). The old days of more than 2000 years from now, Concept of humidity ...

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No.20 Synthesis of ceramics

[ Problem Point ] It was in trouble without a heater that can be synthesized ceramics in a short period of time. [ ⇒Kaizen Point ] Ceramics is heated at a high output Halogen Point Heater of 3kW. Ceramics was ...

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2-5.Absolute humidity

Absolute humidity Generally, if it is only called “Humidity”, “Relative Humidity =RH” will be pointed out, but it is convenient to use the absolute humidity from which a value does not change in a design or control of a drier ...

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2-4.Relative humidity RH

Relative humidity RH Relative humidity is the ratio of the partial pressure of water vapor in an air-water mixture to the saturated vapor pressure of water at a prescribed temperature. The relative humidity of air depends on temperature and the ...

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Heat-tech News Letter – Vol. 004

■□■━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━■ □■ Heat-tech News Letter – Vol. 004 2014-04-15 ■━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━■□■ □ INDEX ■1. Guidance of the new product ■2. Guidance of new applications ■3. Support Information ■4. Editor’s note ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ ■1. Guidance of the new product ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛ 1-1) [ Air ...

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2-3.Ask for saturation water vapor pressure

The saturation water vapor amount is the representation of g in the mass of water vapor that can be present in the space of 1m3. Absolute humidity volume, saturation water vapor density is also known as, aka. Saturation water vapor ...

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9. Attention in the infrared rays use (Q&A)

(Q) Can heat in the far-infrared rays metal? (A) Since there is a lot of metal electrons, it reflects the electromagnetic waves (far-infrared rays) in general. The good conductivity metal such as gold and aluminum, it is hard to heating ...

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8. Comparison of far-infrared rays and near-infrared rays

(1) Infrared Rays are subdivided into several scheme. ISO 20473 specifies the following scheme: Designation Abbreviation Wavelength Near-Infrared NIR 0.78–3 µm Mid-Infrared MIR 3–50 µm Far-Infrared FIR 50–1000 µm (2) Difference in frequency = The difference between the heating capacity By “Wien’s displacement ...

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7. Generation of far-infrared rays

The method of heating the ceramic to make a far-infrared artificially is common. The fine ceramics of an alumina system or a zirconium system are used well. Wavelength and the emittance change by a kind and the heating temperature of ...

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2-1.What is the humidity?

The Chapter 1 focused on moisture inside material. The Chapter 2 focuses on the moisture emitted in the form of vapor into the air. Definition of the humidity Of humidity, it is a representation of a number the wetness in ...

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6. Absorption rate of infrared rays

  【 Infrared Absorption Rate 】 Please confirm the index of absorption of infrared rays in this table. The material absorbed by about 0.5 = 50% or more is suitable for the infrared heating.

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5. 4 basic laws about radiation

1.Planck Radiation Law Max Karl Ernst Ludwig Planck, FRS (23 April 1858 – 4 October 1947) Planck’s law describes the electromagnetic radiation emitted by a black body in thermal equilibrium at a definite temperature. The law is named after Max ...

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4. About heating

The thermal energy transfer from higher temperature to lower temperature. Transfer of the thermal energy , there are three principles, Conduction, Convection, and Radiation. In an actual situation, transfer of the thermal energy is performed in the form these three ...

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