The heat pumps coefficient of performance

Assignment Help Mechanical Engineering

Reference no: EM13714125

The interior of a building is maintained at 23^oC by a heat pump cycle operating at steady state while receiving thermal energy from well water at 12^oC. The thermal energy discharged to the building is at a rate of 116, 250 kJ/h. Over a period of 21 days, a meter reads electricity consumption of 2080 kW.h to run the heat pump. Determine:

a) the amount of thermal energy that the heat pump receives over the 21-day period from the well water , in kJ.

b) the heat pump’s coefficient of performance.

c) the coefficient of performance of a reversible heat pump cycle operating between hot and cold reservoirs at 23^oC and 12^oC.

Reference no: EM13714125

Questions Cloud

Determining the number of solutions of a system : Determining the number of solutions of a system by finding the slope and the y intercept of a graph of each line in the system of equations?

Condition the pressure p and volume v of gas satisfy : Under a certain condition the Pressure p and volume v of gas satisfy the equation p^5v^7 =1000. Suppose that at some moment the volume of the gas is 4liters; the pressure is 200units, and the pressure at the rate 5units per second. Find the ra..

Let s be the ruled surface generated by the binormals : 1. Let σ be the ruled surface generated by the binormals b of a unit-speed curve γ: σ(u, v) = γ(u) + vb(u). Show that the first fundamental form of σ is

Describe the transitive subgroups of sn for n = 3, 4, 5 : 1. Describe the transitive subgroups of Sn for n = 3, 4, 5 2. Find the invariant factors of Z/4Z ⊕ Z/9Z ⊕ Z/50Z. P.S : Please prove the question with step by step.

The heat pumps coefficient of performance : The interior of a building is maintained at 23oC by a heat pump cycle operating at steady state while receiving thermal energy from well water at 12oC. The thermal energy discharged to the building is at a rate of 116, 250 kJ/h.

Find the optimal solution for all values : Deterministic models / linear programming. Please help asap 1. Consider the following parametric problem: z(θ) = min - 10x1 + 16x2 - x3 x1 - 2x2 + x3 ≤ 2 + 2θ x1 - x2 ≤ 4 + θ x1, x2, x3 ≥ 0,

Refrigeration cycle operating between cold-hot reservoirs : A refrigeration cycle maintains a clean room at 68oF by removing energy entering the room by heat transfer at the rate of 0.21 Btu/s. The cycle rejects energy by heat transfer to the outdoors where the temperature is 80oF.

Uniformly distributed on the interva : 1. Two friends A and B go on a date and agree to meet at 7pm. Friend A is an impatient person and will scold b if A arrives before B and B arrives later than 7.15pm. Let X denote the number of minutes after 7pm that A arrives and Y denote the numb..

Let (p) be the plane x+2y-z=0. : Let (P) be the plane x+2y-z=0. Let T be the reflection in R3 about (P). a) Derive an orthogonal basis B = {b1,b2,b3} for the space R3,such that b1 = n is a normal vector to the plane (P), while b2, b3 are on the plane (P).

User Account

All Pages