4-A heat pump with an efficiency coefficient of 2.4 is used to heat a house. Which of the following heat is provided by a heat pump with a power of 5.9 kW from the network? A) 59,32 kW  B) 14,16 kW  C) 2,46 kW  D) 40,68 kW  E) 24,13 kW

Q: A heat machine that can produce up to 880 kJ of work by taking waste heat from a melting furnace…

A: Given Data W = 880KJ Th=1330C Tl = 77C To find the highest efficiency of the heat sink

Q: m is 20 kJ. When the system changes from the state 2 to state one through another path the work done…

A: Option (a) 75kJ of heat from the system is correct.

Q: chine that can produce up to 580 kJ of work by taking waste heat from a melting furnace (temperature…

A:

Q: Quiz / A combination of a heat engine driving a heat pump, the heat energy supplied to the heat…

A: Given Data⇒Qadd=5040 JTmin=30°CThermal efficiency of heat engine,η=41%COP=1.3Problem statement⇒…

Q: 1- A very long coPper rod 20 mm in diameter extends horizontally from a plane-heated wall maintained…

A: Given Data  Diameter of copper rod, D=0.02m Wall temperature, T0=100°C Air temperature, T=20°C heat…

Q: A refrigerator draws 9000 kJ / h of heat from the cold environment at 2 ° C and gives heat to the…

A:

Q: Quiz / A combination of a heat engine driving a heat pump, the heat energy supplied to the heat…

A: given:Qadd=5040jTmin=300cthermal efficiency of the heat engine η=41%COP =1.3

Q: The refrigerant R-134a enters a pipe with a diameter of 32 cm at a speed of 4.5 m/s. Since the flow…

A:

Q: A certain liquid gets warmed to 45 degrees C when its velocity in the tube is 2 m/s inside a heat…

A: greater than 45 degree

Q: 2. If the engine operates at 50 cycles per second, the power output is A) 381 W B) 45.8 W C) 1145 W…

A: Definition:Engine powerThis engine power focuses on how much labor or energy an engine can generate…

Q: Ageothermal power plant was installed at the rear side diff of Mayon Terrain that generates thermal…

A:

Q: 14. A Carnot refrigerator requires 10 kW to remove 20 klis from a 20°C reservoir. The temperature of…

A: Given Data W=10 kW QL=20 kW TL=20°C

Q: A water cooler uses 100 lb/hr of melting ice (32 deg F) to cool running water from 80 deg F to 42deg…

A:

Q: A very long rod extends horizontally from a heated wall. The rod is 20 mm in diameter and the heated…

A: Given that  Diameter of the copper rod, d = 20mm.Temperature of the wall ,Tw  =100° C . Temperature…

Q: A heat machine takes heat from a source of 1000 K temperature and gives heat to an environment with…

A: In the given problem the unit of heat transferred from the hot source to the machine should be in…

Q: A heat engine that gives heat to a heat well at 65 ºC receives heat from a source at 1200 ºC. Since…

A:

Q: A heat machine takes heat from a source of 2000 K temperature and gives heat to an environment with…

A: here source temperature T1=1000 k   environment temperature To=550 k          heat supply…

Q: - A heat engine that gives heat to a heat well at 70 ºC receives heat from a source at 1020 ºC.…

A:

Q: A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and…

A: Given data: Thi=100 °Cp=6mair=120 kg/minTci=20 °CTce=80 °CCoil=2.1 kJ/kg⋅Kmoil=180 kg/min

Q: During a cycle of processes, the heat transfers are the following +120 kJ, -16 kJ, -48 kJ and +12…

A: Given,  A cyclic process to be considered . heat interactions  - +120kj, -16 kj , -48 kj ,and +12…

Q: Quiz /A combination of a heat engine driving a heat pump, the heat energy supplied to the heat…

A:

Q: - A heat machine that can produce up to 850 kJ of work by taking waste heat from a furnace…

A: Option  E   is correct  227.8 kJ

Q: The cylinders that come out of the heat treatment furnace are cooled in a stagnant air environment…

A:

Q: 11-A maximum of 5 kW of power can be consumed for a heat pump. If the efficiency coefficient is…

A: coefficient of performance COP = Desired effect / work input required

Q: 23. For a site, if the load to be covered is 17,520,200 MWh, and a wind turbine with 3 MW capacity,…

A: Given: The load to be covered, P = 17520,200 MWh The capacity of wind turbine, P' = 3 MW The actual…

Q: The refrigerant R-134a enters a 29 cm diameter pipe at a speed of 4 m/s. Since the flow is…

A: Given data:

Q: he efficiency of a thermal machine cannot have a value of 1 because   a) There is no apparent…

A: Given Data⇒ Carnot thermal machine

Q: In an auto repair service, a hydraulic platform raises a 1800kg car 1.6m. The hydraulic pump…

A: Given data m=1800 kg H=1.6 m P=950 kPa V=?

Q: Water is heated in a boiler. The inlet water enters as a saturated liquid at 5000 kPa and exits at…

A:

Q: Heat rejected by condenser is 1000 W. If the COP is 4, find the power input of the refrigerator?…

A: To find: The power input. Given: The heat rejected by the condenser is Q1=1000 W. The COP of the…

Q: -A cooling machine has a maximum cooling capacity of 88 kW. The temperature of the freezer at which…

A: Given data as Cooling capacity (Qc)=88 kW Lower temperature (Tl)=1 °C= 274 K Higher temperature…

Q: Water at 95°F is heated with steam up to a temperature of 212°F. The mass of water is 110 lb and the…

A: Given That:  T1 = 212oF T2= 95oF Mass of water = 110 lb Time = 1200 sec

Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing.