3. In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min through a radiator where it is cooled to 35°C. If the water arrives at the radiator at a temperature of 85°C, how much heat in kJ does the radiator release each hour?

3. In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min through a radiator where it is cooled to 35°C. If the water arrives at the radiator at a temperature of 85°C, how much heat in kJ does the radiator release each hour?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: A piston-cylinder assembly contains 2 kg of liquid water at 20 ° C and 100 kPa pressure. 1000 kPa…

A: Given data: The mass of liquid, m = 2 kg. The initial temperature, T1 = 20oC. The initial pressure,…

Q: 2. The gain in entropy during an isothermal process of 5 lb of air at 60°F is 0.462 Btu/*R. What is…

A: Given:Entropy of process,∆s=0.462Btu οRFrom first law of thermodynamics:∆Q=∆U+∆WIn isothermal…

Q: 1 kg of steam at initial conditions of 5.1 MPa and 370 °C expands in a turbine until it becomes…

A: h1 is the specific enthalpy of saturated liquid water at the exit of condenser corresponding to…

Q: A three-process cycle uses 3 kg of air and undergoes the following processes: polytropic compression…

A: Given data: The mass of the air is m = 3 kg. The pressure of state 1 is p1 = 150 kPa. The…

Q: Saturated steam at 3.27MPa undergoes a T=c process until it becomes 0.8MPa. Calculate dH, dS, Wsf,…

A: *As per our guidelines we are supposed to answer first three sub-parts of the question. Kindly…

Q: A tank contains R134a initially at 3 degrees Celsius with a quality of 0.25. the pressure is held…

A: Given: Initial state T1=3oCx1=0.25 Supply line: Psupply=975 kPaTsupply=118oC Final State: m2=20…

Q: When a stationary mass of gas was compressed without friction at constant pressure its initial state…

Q: A closed gaseous system undergoes a reversible process during which 25 BTU are rejected, the volume…

A: To obtain the solution of this question, we will apply the 1st law of the thermodynamics for a…

Q: a) Refrigerant-134a is throttled from the saturated liquid state at 700 kPa to a pressure of 160 kPa…

Q: 3 kg air with initial temperature of 200°C expands at a constant pressure of 4 bar to reach to a…

Q: 2- In a steam nozzle, the steam expands from 3 bar to 1.0 bar. The initial velocity is 90 m/s and…

Q: A rigid tank A of volume 0.6 m ^ 3 contains 3 kg of water at 120 ° C and rigid tank B of V = 0.4 m ^…

Q: 2.8 bar and 40 C ideal R-134a at start in a Piston-Cylinder system fluid transport and initial…

A: Since you have asked a question with multiple parts in a single request, we would be answering only…

Q: A 2kg/s of steam enters a turbine at 1Mpa ,400 °C with a velocity of 10m/s and leaves at very slow…

A: A turbine is a mechanical equipment which uses the heat energy of the steam or fluid allowed to pass…

Q: a) Draw the process on the PV diagram and explain the changes of pressure and volume durin the…

A: Pneumatic: The pneumatic is the system in which the pressurized air used for the applications. The…

Q: Steam expands in a reversible adiabatic process, employing a cylinder-piston configuration. The…

Q: A reversible non-flow process occurs from which the work is 9.4 BTU. If the pressure varies as P =…

Q: (g) An automobile engine produces 221 lb ft of torque at 1800 rpm. In Hp, how much power does this…

Q: Ch A system takes in 0.610 kJ of heat while it does 0.930 kJ of work on the surroundings. What is…

Q: 3. Assume 5 kg of steam initially at 8 MPa and 100% quality are heated at constant temperature. If…

Q: 2) A well-insulated, mixing chamber is configured to mix hot and cold water. The cold water is 10°…

A: The initial temperatures of cold and hot water are given as, TC=10 °CTH=75 °C On using of…

Q: compressor draws in 500cfm of air whose density is 0.079 lb/ft3 and discharges it with a density of…

Q: Q6. A 500 W heater is used to melt 5 kg of solid ice at -30°C to gas at +130°C at a constant…

A: Since you have posted a question with multiple subpart, we will solve first three for you for…

Q: A reciprocating compressor draws in 500 cubic feet per minute of air whose density is 0.079 lb/cu.ft…

Q: A reciprocating compressor draws in 500 cubic feet per minute of air whose density is 0.079…

Q: Q) A & B are rigid tanks. Tank A has volume of 1 m , contains steam with 4 MPa and 500 °C heated by…

Q: A steam engine isentropically expands 3 kg/s of steam from 0.86MPA, 2200C. The exhaust is dry and…

Q: Air flows at a rate of 0.4 kg/s through an air compressor entering at 6 m/s, 1 bar and 0.85 m^3/kg…

A: Steady Flow Energy Equation Is Given As Q-W=m∆H+12mC22-C12+mg(Z2-Z1)

Q: A piston-cylinder assembly contains 2 kg of liquid at 20 ° C and 100 kPa pressure. 1000 kPa pressure…

Q: An ammonia refrigeration compressor takes its suction from the evaporator, at a temperature of -200F…

Q: Task 03 A). Mass of 1.5 kg of air at 120 kPa and 24 0C is contained in a gas-tight, frictionless…

Q: A Copper ball at 40°C is dropped in a mug containing water at 40C. The heat will

A: The correct option is option a).not flow from Copper ball to water or from water to Copper ball.

Q: 3. 5 kg air with initial temperature of 100°C expands at a constant pressure of 2 bar to reach to a…

A: Given data, For air, m= 5 kg T1= 100°C = 373 K Pressure is constant P= 2 bar = 200 KPa V2= 5m³

Q: 2. 10kg of H₂O in a 1.5m³ tank is initially at 200°C heat loss causes a decrease in temperature to…

A: Solution to first three sub-parts as per our company policy.

Q: One pound of air per second with an initial temperature of 180°F is allowed to expand without flow…

A: Given that, Initial temperature, Ti=180 °F,Initial Pressure, Pi=120 psia,Final pessure, Pf=20…

Q: A reversible non-flow process occurs from which the work is 9.4 BTU. If the pressure varies as P=…

Q: 2. Derive the formula for the nonflow work in terms of P1,P2, V1 and V2 only for a process involving…

Q: rigid tank A of volume 0.6 m3 contains 3 kg of water at 120 ° C and the rigid tank B of V = 0.4m3…

Q: In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min…

Q: As shown in the figure, a 300-ft3 tank contains 25 lb of H20 initially at 30 lbf/in?. The tank is…

Q: 7. A superheated steam at 20 MN/m2 is at 350 C. Determine the specific internal energy.

Q: A rigid tank consisting of two equal parts has a pressure of 300 kPa and 6 kg of water at 30oC on…

A: Given:water Pressure, P=300 kPawater temperature, T=30o Cmass of the water, m=6 kg

Q: Superheated steam enters a turbine at 7 MPa, 350 , and a mass flow rate of 5000 kg/h. Steam leaves…

A: Write the given data: P1=7 MPa=70 bar10 bar1 MPaT1=350 °Cm.=5000 kg/h=83.33 kg/sQ.lost=13 kW

Q: One pound of air per second with an initial temperature of 180oF is allowed to expand without flow…

A: Given: Mass of the air is 1 lb/s or 0.4536 kg/s. Initial temperature is 180oF or 355.372K. Initial…

Q: Consider a balloon contains initially 40 liter of Helium at 105 kPa and 20 oC, The balloon is…

Q: A jet engine (see Figure P1.9) is traveling through the air with a forward velocity of 300 m/s. The…

A: Given: Vi = 300 m/s Ve = 800 m/s Pe = 80 kPa Pa =20 kPa Thrust = ?

Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

3. In a hot water heating system, water heated to
95°C and then is pumped at the rate of 4 L/min
through a radiator where it is cooled to 35°C. If
the water arives at the radiator at a
temperature of 85°C, how much heat in kJ does
the radiator release each hour?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Refrigerant-134a is in an insulated canister with temperature 25 C. There is a partition in the canister so the refrigerant is a saturated liquid and takes up 1/100 of the volume of the canister. The rest of the volume is evacuated. When the canister is activated by squeezing (no work done activating) the partition breaks and the refrigerant fills the total volume. Final pressure is 100 kPa. a.) What are two assumptions needed for the problem? What properties are needed to solve part b.) and c.) b.) What is the change in specific enthalpy within the canister? c.) What is the final quality of the refrigerant within the canister?
Q1. A vapour compression refrigeration uses R-12 as a refrigerant and the liquid evaporates in the evaporator at - 15°C. The temperature of this refrigerant at the delivery from the compressor is 15°C when the vapour is condensed at 10°C. Find the C.O.P. if (i) there is no under cooling (ii) the liquid is cooled by 5°C before expansion by throttling. Take specific heat at constant pressure for the superheated vapour as 0.64KJ/kg k. and that for liquid as 0.94KJ/kg k the other properties of refrigerant are as follow: a) Temperature b) 0°С с) Enthalpy(KЈK)) d) Entropy(KJ/kg k) e) liquid _j) 22.3 0) 45.4 f) Vapour k) 180.88 g) liquid 1) 0.0904 9) 0.1750 h) Vapour m) 0.7051 i) -15 n) 10 p) 191.76 r) 0.6921
Find the thermal efficiency of the system in percentage to 2.d.p.
Helium at 660 K expands in a turbine to 369 K during which 84 kJ/kg of heat was lost to the surroundings which are at 27 C. The pressure across the turbine was 6.0, What is the actual specific work "kJ/kg"?
You have decided now that quarantine is about over to take a trip to Hawaii. You decide to rent a small house that has floor to ceiling windows. It is small so it is one floor. The length and width of the windows are 9m x 14m. There are 4 of them. It is a constant 950F (350C) outside and you really like it 650F(180C) inside. You have an air conditioner that operates at 75 percent Carnot efficiency. The windows are 6cm thick and the rest of the house is well insulated. a) How much electrical energy do you use in a day? b) What is the cooling capacity each day?
andrw Tetencson S Salazar a002 BSME - 01 Oygun ot 200 kpa 27°C is contained in pistar -cylinder duia maintain arrange in /kg to Constant prassure. How much work prdued by this ryertern when it is 227°C
Find the heat capacity of the hot and cold fluid.
Given the table of results find the following. Give answers in KW. Please show all working out and explain how you come up with values for h1, h2, h3, h4 (eg which table used) Rate of heat transfer to evaporator from the chilled water Rate of heat transfer from condenser to the cooling water Rate of heat transfer to refrigerant in “Evaporator” using enthalpy values Rate of heat transfer from refrigerant in “Condenser” using enthalpy values Work input from the compressor to the refrigerant using enthalpy values
differentiate between Open Feedwater Heaters and Closed Feedwater Heater with given 1 application on each of it
A hot water boiler heats 2,800 lb/hr of water from 50oF to 220oF, at 40 psia. How much heat is added to water?
A test cylinder with a constant volume of 2m3 contains saturated liquid water at the 100°C. It now cools downto room temperature of 20°C.a) Calculate the heat transfer from the water.b) Is the heat supplied into the system or out?
K 1.calculate virtual temp of air with an actual temperature of 25C and pressure of 950hpa, and the following characteristics. i) no water vapor and with no condensed water; ii) at 50% relative humditiy, and iii) saturated with water vapor and with no condensed water.