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Biot number
The Biot number (Bi) is the ratio of the thermal resistances inside of a body and at the surface of a body. The Biot number is defined as: Characteristic length can be estimated as:
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Bejan number
Bejan number used in thermodynamics and fluid mechanics. Thermodynamics Dejan Number The Bejan number is the ratio of heat transfer irreversibility to total irreversibility due to heat transfer and fluid friction. It can be represented by: Heat Transfer Bejan Number The Bejan number is the dimensionless pressure drop along a Read more…
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Butyl isocyanide
Other names include n-Butyl isocyanide, Butyl isocyanide, and 1-isocyanobutane. CAS no: 2769-64-4 Properties Generic Properties Critical Properties Temperature Dependent Properties Specific Heat The specific heat at constant pressure can be calculated with the formula: Heat of Formation The heat of formation can be calculated with the formula: Viscosity The viscosity Read more…
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Butyl isocyanate
Other names include 1-Isocyanatobutane, Butane, 1-isocyanato, n-butyl isocyanate, 1-Butyl isocyanate, and Isocyanic Acid Butyl Ester. CAS no: 111-36-4 Properties Generic Properties Critical Properties Temperature Dependent Properties Specific Heat The specific heat at constant pressure can be calculated with the formula: Heat of Formation The heat of formation can be calculated Read more…
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Bromochlorodifluoromethane
Bromochlorodifluoromethane was introduced as an effective gaseous fire suppression agent in the mid-1960s. BCF was also widely used in the maritime industries and transport industries. Its efficiency as a fire extinguishing agent has also led it to be the predominant choice of fire extinguishing agent on commercial aircraft. Other names of BCF Read more…
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Bromochloromethane
Bromochloromethane is a mixed halomethane. It was invented for use in fire extinguishers as an alternative to carbon tetrachloride. It is less toxic, more effective than carbon tetrachloride. Its also referred to as methylene bromochloride and Halon 1011. CAS no: 74-97-5 Properties Generic Properties Critical Properties Temperature Dependent Properties Specific Heat The specific heat at Read more…
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Bromoform
Bromoform is an organic, colorless liquid at room temperature, with a high refractive index, very high density, and sweet odor is similar to chloroform. It can be prepared by the haloform reaction using acetone and sodium hypobromite, by the electrolysis of potassium bromide in ethanol, or by treating chloroform with Read more…
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Bromotrichloromethane
CAS no: 75-62-7 Properties Generic Properties Critical Properties Temperature Dependent Properties Specific Heat The specific heat at constant pressure can be calculated with the formula: Heat of Formation The heat of formation can be calculated with the formula: Viscosity The viscosity can be calculated with the formula: For liquid For Read more…
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Bromotrifluoromethane
Bromotrifluoromethane is a colorless, odorless gas at room temperature. It is a noncombustible, nontoxic gas but can asphyxiate by the displacement of air. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Exposure of the container to prolonged heat or fire can cause it to rupture violently and Read more…
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BOD/COD Reduction Methods
There are five major methods to reduce BOD and COD Hydrogen peroxide as Oxidant ClO2 as Oxidant Microbiology Process Process Filtration and Adsorption with Activated Carbon COD Reducement using Precipitation Process (Coagulation) 1. Hydrogen peroxide as Oxidant Hydrogen peroxide (H2O2) has been used to reduce the BOD and COD of Read more…