Engineering, 09.12.2020 03:10 natalie2sheffield

Kerosene heaters that are used for indoor heating are known to produce NO2, a highly toxic gas. NO2 poses a health hazard to people living in the household. Formulate a model to develop an expression for the change in NO2 concentration as a function of time. When the heater is on, it generates NO2 at a constant rate of SA moles per unit time. Ventilation air coming from the outside of the house at a volumetric flow Q contains no NO2 whereas the exit ventilation (also at the volumetric flow Q) will carry away NO2 at a concentration equal to that in the house. Here we assume that the air in the house is perfectly mixed. Assume that NO2 decomposes spontaneously with a first order reaction rate constant k (time-1).

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Answers: 1

Answer

Engineering, 04.07.2019 18:10

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

Answers: 1

Answer

You know the right answer?

Kerosene heaters that are used for indoor heating are known to produce NO2, a highly toxic gas. NO2...

Questions