A compartment is fully involved in fire. The flame inside the room is cherry red. Considering the gray body model (ε = 0.75) calculate thermal radiation emission from the compartment and compare it with maximum radiant heat flux for indefinite skin exposure

  1. A compartment is totally concerned in hearth. The flame contained in the room is cherry crimson. Contemplating the grey physique mannequin (ε = zero.75) calculate thermal radiation emission from the compartment and evaluate it with most radiant warmth flux for indefinite pores and skin publicity.

 

  1. Combined gas consists by methane (quantity % is zero.45), carbon monoxide (zero.15) and hydrogen (zero.40). Calculate the decrease flammable restrict focus for the combination and the focus of every part within the combination with air.

 

  1. Take into account a 1.2 m diameter pan hearth of petrol with warmth launch depth of about

490 kW/m2 of floor space. Calculate the flame peak beneath the traditional atmospheric situations.

 

  1. Examine the chemical response charges at three temperatures – 100, 500 and 1000 Okay. The activation power is 100 kJ/mole. Make your conclusion how temperature impacts chemical response charge.

 

  1. Calculate the wavelength for infrared thermal radiation with frequency 1014 Hz. Examine the end result with the wavelengths for Easy Radio 100.four and visual radiation for to the human eye.

 

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