What is the static air powering watts of a fan designed to deliver 800m3/hr of air with static pressure of 5cm of water column on full delivery. a. 155.3            b. 95.7                    c. 105.8                d. 122.6

Q: A refrigerating machine that is classified as a one-ton-machine has the capacity to produce a…

A: In this problem, there is a refrigerating machine that has classified capacity of 1 tonne.

Q: generator eliciency = 95%, brake engine elficiency = 90% What is the combined work in KW? Answer: If…

A:

Q: Explain in brief which refrigerant/s would you choose for each of the following applications and…

A: Refrigerant is fluid that carries heat in the refrigerator at low temperature and released the heat…

Q: net heat rejected to reservoir C by CE-2

A: Given data; Carnot engine (CE-1) works between       two temperature reserviors A and B;TA=900…

Q: Give 2 types of refrigirator system that can be used for mini portable refrigirators or cooler box…

A:

Q: A manufacturing company is intending to use its water cooled condenser for its proposed cold storage…

A: given-Twater in=30°CTwater out =40°CTcondensation=35°C

Q: Inlet: Air, 72 kPa, 291.15K, 230 meters/second Outlet: Air, 98 kPa, 0 meters/second What is the…

A: Given: at inlet T = 291.15K V = 230 m/s molecular weight of air = 28.96 gm/mol

Q: 2.2 A single stage single acting reciprocating air compressor is required to handle 30m³ of free air…

A: Solution: Indicted Mean Effective Pressure We know that isothermal work done Therefore the power…

Q: The power input to the compressor is 4000 hp. Is work positive or negative? Explain.

A:

Q: Why are centrifugal fans with backward inclined blades desirable?

A: centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to…

Q: Determine the mass flow rate of air entering the air-handling unit, in lb/s, the volumetric flow…

A:

Q: True or False: All heat pumps are practical anywhere inthe United States. Explain your answer.

A: A mechanical device called a heat pump is used to move heat from a high-temperature source to a…

Q: Describe briefly the difference between a heat engine and a heat pump.

A: To explain: The difference between a heat engine and heat pump. Explanation: The difference between…

Q: ..Equation for Law of conservation of mass and energy for a nozzle

A: Law of conservation of mass (For nozzle) The mass is conserved during the process, the mass of fluid…

Q: systems use compressed air to deliver work.

A: Pneumatic system.

Q: A pump increases the pressure of water at a flow rate of 160 L/minute from 100 kPa to 900 kPa. If…

A:

Q: Find the motor size needed to provide the forced draft service to a boiler that burns coal at the…

A:

Q: Describe how the principles in the “First Law of Thermodynamics” applies to a solar dish-engine…

A: First law of thermodynamics: According to this law,” the energy of an isolated system remains…

Q: State the cold air standard assumptions.

A:

Q: a) Demonstrate working of actual Vapour Absorption system (VAS), illustrate with schematic diagram.…

A:

Q: What are the applications of Backward Inclined centrifugal fans?

A: Backward Inclined centrifugal fans When centrifugal force is generated by a blades present on…

Q: Q1 / Refrigeration system operating at high pressure 12 bar and low pressure 5.4 bar She works as an…

A: Given data: In a Refrigeration system  Condenser Pressure  Evaporator Pressure  R22 refrigerant…

Q: Describe why variable-speed compressor motors are more efficient than single-speed motors in heat…

A: Variable-speed compressor motors are more efficient than single-speed motors in heat pump systems…

Q: AC/ pump analysis System 2 tons operating steadily to maintain 60 F inside. Temperature outside:…

A:

Q: 6. What is the maximum extension force of a cylinder with a 5-inch bore and 2 to 1 area ratio in a…

A: Find the maximum extension force Given data:- Bore = 5 in Pressure = 1000 pai Flow rate = 10 Gpm

Q: A 1-ton air conditioner is a unit that will remove the amount of heat neededto melt one ton of ice…

A: Given: Latent heat of fusion of ice=144Btu/lb

Q: 2. (i) Which of the following is not a centrifugal fan design? A. Fan array. B. Roof ventilator.…

A: (i) Fan array, roof ventilator and utility set have the same design as the centrifugal fan. The only…

Q: Describe the efficiency of a water heater?

A: Given Water heater To find The efficiency of water heater

Q: Q4/ Answer A// Compare briefly between the centrifugal and axial compressors.

A: OPERATION OF CENTRIFUGAL COMPRESSOR Gas enters through the suction inlet of a centrifugal compressor…

Q: How long (in minutes) can a 75.0 US gallon receiver supply 8.5 SCFM of compressed air if the…

A:

Q: 2. Enumerate the function of a. Boiler Water Treatment Tank b. Cooling Tower 3. What is a Water…

A: Boiler water treatment tank function is to : 1. Control the hardness of boiler water. 2. Condition…

Q: Q4//A// What are the advantages of: reheater, economizer, fixed row of steam turbine.

A: The purpose of all these process/ equipments like reheating, economizer, regenration, row of steam…

Q: Reciprocating pumps are suitable for high pressures O a. True O b. False

A:

Q: An ammonia simple vapor operator between evaporator and condenser temperature of 20 C and 35 C…

A:

Q: Q3/Answer by true or false :  1) All water systems using fan coil units are suitable in buildings…

A: 1)In all water system water is used to heat or cool the conditioned space. In this system a fan coil…

Q: Possible problems an air conditioner can have and solutions to the problems

A: There are Some problems an air condition system .Those are 1. LOW REFRIGERANT. 2.FROZEN EVAPORATOR…

Q: A fan operating at a standard air condition registered a total static head of 230 mm of water gage.…

A: Given Data Total static head, hs=230 mm Static efficiency, ηs=0.65 Fan efficiency, ηf=0.8 Velocity…

Q: What common type of compressor have you encountered in your existence? Briefly discuss its…

A: An Air compressor is a device that is used for increasing the pressure of the air to the desired…

Q: Draw a schematic flow diagram of a heat engine.

A: Draw a schematic flow diagram of a heat engine.

Q: An air compressor forms a, O A. closed system O B. combined open and isolated system O C. open…

A: Given :-  An air compressor forms an  A. Closed system B. Combined open and closed system  C. Open…

Q: Why balancing of the reciprocating masses is necessary for machines with any two oil and gas plant…

A: Balancing of the reciprocating masses Different forces operate on the reciprocal components of…

Q: (c) work on compressor in kW (d) work on compressor per ton of refrigeration (e) coefficient of…

A: Given that: The refrigerant is R22. Refrigeration capacity = 82 kW. Compressor suction pressure =…

Q: heat engine operates

A: Answer= 40%

Q: Explain with a neat diagram with all parameters, the components and working of a heat pump system

A:

Q: Critical factors in inlet control are cross-sectional area of the inlet and inlet

A: Geometry

Q: why are centrifugal pumps so little used in fluid power systems

A: To explain: The reason that centrifugal pumps so little used in fluid power systems. Explanation:…

Q: Q/ Economic feasibility of inverter air conditioners Inverter Split Air Conditioners?

A: Air Conditioner  The air conditioner is a mechanism that allows a room to cool down when heat is…

Q: Make didactic sketches to show operating principles of both heat pumps and refrigeration systems.

A: Heat pump is the system used to keep any desired space at the temperature higher than that of the…

Q: Differentiate refrigerator and heat pump

A: Both the refrigerator and the heat pumps carry the heat from low temperature reservoir or the sink…

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.