Engineering, 24.10.2019 18:43 kathleensumter4913
A4-m × 5-m × 7-m room is heated by the radiator of a steam-heating system. the steam radiator transfers heat at a rate of 10,000 kj/h, and a 100-w fan is used to distribute the warm air in the room. the rate of heat loss from the room is estimated to be about 5000 kj/h. if the initial temperature of the room air is 10°c, determine how long it will take for the air temperature to rise to 20°c. assume constant specific heats at room temperature.
Answers: 3
Engineering, 04.07.2019 18:20, aly95
An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid
Answers: 3
Engineering, 06.07.2019 04:10, ninaaforever
Natural gas (95 percent methane and 5 percent ethane by volume) flows through a 90 cm diameter pipeline with a velocity of 3 m/s. the pressure in the pipeline is 700 kpa, and the temperature is 15°c. calculate: (a) the mass and volumetric flow rates in this pipe.
Answers: 1
Engineering, 06.07.2019 04:30, josephvcarter
Describe briefly, the concept of mass production in modern industrial system.
Answers: 1
A4-m × 5-m × 7-m room is heated by the radiator of a steam-heating system. the steam radiator transf...
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