Question 26 How much water a pump of 2kW can raise in one minute to a...
A pump is pumping water at a flow rate of 1200 litres per minute. In the pump the mechanical energy of the water increases by 250 J/kg. The density of water is 1000 kg/m3. a) Determine the pressure difference between the pump outlet and the pump inlet. Assumptions: there are no frictional losses in the pump, and differences in velocity and elevation between inlet and outlet of the pump can be neglected. b) Show that the mechanical power added to...
1. You need to lift three tons (one ton 2000 pounds) of water per minute from a hole 26 feet deep. a) How much work needs to be done in one minute, in any units? b) Express this work done in one minute in metric units of Joules. c) How many horsepower must your pump motor provide? d) Express this in metric units of power.
A water supply system draws from a river at an elevation of 800-feet and delivers the water to a storage reservoir at elevation 820-feet. The supply pipeline is a 1000-foot long, 10-inch diameter, cast iron pipe. A single pump with the pump characteristic curve in Figure 1 is used to fill the reservoir. Determine: a) Sketch the system described in the problem statement. b) Inlet and outlet minor loss coefficients, cite your source of minor loss coefficients. c) The roughness...
A water pump is required to lift 800 liters of water per minute from a well 10 meters deep to an elevated tank 5 meters above ground level. a) How much work does the pump do in a time of 1 min.? b) What is its power output in Hp? c) If its efficiency is 90%, what is its power input in Hp? d) How much work is lost if the pump operates for 1 hour
How much heat is required to raise the temperature of 1.5 x 10g of water from 45°F to 130.°F? The specific heat of water is 4.184]/g °C. O A. 8.2 x 10°K) OB.5.3 x 102 k) O C.3.0 x 102K) OD.3.0 x 10k) O E. 3.4 x 102 k)
3. A pump is to be used to pump water from the lower re servoir at an elevation of 10 ft The pump has a characteristic curve ft up to a reservoir shown in the graph below. What will be the volumetric flow rate of the water in this system? Elevation- 35 ft L- 50 t D-10 in -0.020 L-950 ft rid- Elevation 20A D-10 i -0.020 Elevation-15ft 80 60 40 Pump curve 20 1000 2000 3000 4000 5000 O,...
How much heat is required to raise the temperature of 12.0 g of water from 15.4°C to 93.0°C? The specific heat of water is 4.184 J/g.-C. O 223 J O 773 J O 5033 O 467 x103 O 3.90 <103
D Question 6 3 How much heat is required to raise the temperature of 2.500 g of water from 27°C to 72°C? The specific heat of water is 4.184 / C.? 10. kJ 0.19 k) 280k) 470k Previous Not
Part A How much heat must a 23.0 g sample of water absorb to raise its temperature from 14.0 °C to 74.0 °C? (For water, C 4.18 J/g. "C.) 0 5.77 kJ O 7.11 kJ O 330 kJ 1.35 kJ Request Answer Submit ide Feedback
1. How much heat is needed to raise the temperature of 3 kg of water from 20oC to 40oC? Give answer in kJ (1kJ = 1000 J) (round answer to 3 sig fig) 2. How much heat is needed to raise the temperature of 3 kg of ice from -40oC to -20oC? (round answer to 3 sig fig) Specific heat of water: C = 4180 J/kgK Specific heat of ice: C = 2090 J/kgK Specific heat of ethanol: C= 2440...