15. If a fire is using 1.7 kg of oxygen per second, what is the heat release rate?
14. What are the differences in heat release rate for a 5 m diameter kerosene fire when the combustion efficiency is 85% versus 65%?
1. Define heat release rate (HRR) and explain its importance, in your own words. Specifically, what clements affect the HRR of a single fuel package? What is the mathematical formula for determining the HRR, and what does each element of the equation represent? Write your answers in your own words. Provide all references. Determine the peak HRR of the following items in Review Questions 2-5 (provide refer- ences for your answers): 2. Bunk bed 3. Sofa 4. Mattress 5. Kiosk...
1) What is the burning duration of a 1.7 meter diameter gasoline pool fire with a volume of 0.042 m3? 2) What is the regression rate of a 1.6 meter diameter gasoline pool fire?
Ethane gas (C2H6) is burned with air. The fuel flow rate is 0.1 kg/s and the air flowrate is 2.2 kg/s. Ethane's enthalpy of formation is -84,680 kJ/kmol. Determine: a. The equivalence ratio b. Ethane's lower heating value by deriving it from enthalpy of formation data. c. The heat release rate, in kw d. The mass fraction of oxygen in the products. e. The mass of CO2 emitted per 1000 hours of operation f. The mass of fuel burned per...
Review | Constants An object's moment of inertia is 1.7 kg. m. Its angular velocity is increasing at the rate of 3.3 rad/s per second Part A What is the net torque on the object? Express your answer in newton-meters. 190 AED ? Nm Submit Request Answer
Five kg of oxygen (O2), initially at 430C, fills a closed, rigid tank. Heat transfer from the oxygen occurs at the rate 425 w for 10 minutes. Assuming the ideal gas model with k = 1.350 for the oxygen, determine its final temperature, in °C.
10 of 15 If 0.01 moles of a product get produced in 1 second in a 2-L vessel, this initial rate is O 0.005 M/S 0 0.01 M/s 0 0.02 M/S 200 M/S 11 of 15 Blowing on a fire can increase the reaction rate. This is due to O increasing the temperature O decreasing the temperature O increasing the surface area exposed to oxygen O decreasing the surface area exposed to oxygen
4. In an oil cooler, water fows at the rate of 360 kg/h per tube through metal tubes of outer diameter 19 mm and thickness 1.3 mm, along the outside of which oil fows in he opposite direcion at the rale of 6.675 kg/s per tube. If the tubes are 2 m long and the inlet temperatures of the oil and water are 370 K and 280 K respecively, whatwill be the oufet oi emperature? The coeicient of heat transfer...
Eggs with a mass of 0.12 kg per egg and a specific heat of 3.32 kJ/kg. C are cooled from 30 C to 10 C at a rate of 800 eggs per minute. The rate of heat removal from the eggs is 106 kW 478 kW 8.0 kW 53 kW 159 kW
QUESTION 10 Q10 (LO2) 12 marks] 60 kJ of heat is transferred to a system whose mass is 2 kg for a total of 15 seconds. What is the rate of heat transfer in kw? 60 O 30 O 2 04 QUESTION 10 Q10 (LO2) 12 marks] 60 kJ of heat is transferred to a system whose mass is 2 kg for a total of 15 seconds. What is the rate of heat transfer in kw? 60 O 30 O...