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A fuel gas consisting of 94 mole-% methane and 6 mole-% nitrogen is burned with 35% excess air in a continuous water heater. Both fuel gas and air enter dry at 298.15 K(2SoC). Water is heated at a rate of 34.0kg s-l from 298.15 K(2S°C) to 368.15 K(9S°C). The flue gases leave the heater at 483.15 K(210°C). Of the entering methane, 70% burns to carbon dioxide and 30% burns to carbon monoxide. What volumetric flow rate of fuel gas is required if there are no heat losses to the surroundings?
When concentrated H2SO4 is added to water, the solution gets very hot. d. Water is boiled in a teakettle
Explain how heat is lost from a hot surface to the surrounding air - what is meant by the economic thickness of lagging?
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to decay events per second (the number of decay events from 1 g of radium in 1 s).
Principles associated with the theory of Creep and Viscoplasticity need to be identified and your understanding of these principles. Graphs, tables, calculation etc should be included for better illustration.
Plain carbon steel would be a suitable material for the tanks, but it is essential that the polymer does not become contaminated with iron in storage. Suggest some alternative materials of construction for the tanks.
To be satisfactory quality the ratio of 'A' to 'B' in the mixture must be 100 to 1or higher. 'D' reacts with both 'A' and 'B' as follows;A + D?R-rA= 21 CACDB + D?S-rB= 147 CBCDAssuming that the reaction go to completion, how much 'D' need be added..
For honey, which is Newtonian, the plot should be linear with the slope equal to the viscosity. Calculate the viscosity (or let Excel do it for you). Do a little Google or literature searching and see if you can find a value for the viscosity of h..
Human-Machine systems defined as a combination of humans and equipment interacting to achieve some desired result. Types of human-machine systems are Manual systems, Mechanical systems, and automated systems. **Systems Components are The human, Th..
In the batch preparation of an aqueous solution, the water is first heated to 80 °C in a jacketed, agitated vessel; 1000 Imp. gal. (4545 kg) is heated from 15 °C.
A man comes home on a summer day and finds that his house is at 35oC. He turns on the air conditioner. In 30 minutes the entire house is at 22oC. If the COP of the air conditioner is 2.8, calculate the powerthat must be supplied to it. Assume the..
Estimate the constant-pressure heat capacity of oxygen at - 50 °C, 38 bar, using the truncated virial equation. Hint: Use the truncated virial to calculate the enthalpy at two pressures near - 50 °C, 38 bar, then obtain the heat capacity by numeri..
Ninety-five percent of the acetone vapour in an 85 vol.% air stream is to be absorbed by counter-current contact with pure water in a valve-tray column with an expected overall tray efficiency of 50 %.
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