+1-415-315-9853

info@mywordsolution.com

## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

problem 1: A solar thermal salesman heard about the Rusk’s solar PV system and decided to convince them to use part of their roof for solar thermal instead of solar PV.

problem 2:

a) If the thermal solar collectors are 70% efficient and the aperture area is 70% of the area covered by the solar thermal collector system, how many kWhs of energy per square meter is recovered assuming 5.5 kWh/m2/day? How many BTU’s?

b) The tap water comes into the house at 60 oF and is heated by the thermal solarsystem. How many gallons of this water can be heated to 130 oF per day per square meter of solar thermal system?

problem 3: The solar PV company comes back with a quote for the purchase and financing of the solar PV system. The total system with installation will cost \$54,000.

a) The federal government gives them a 30% tax rebate. Assuming an interest rate of 7.5% for 15 years, what will be their monthly payment for the installed system?

b) Using the data described below (that is, use the average cost per year averaged over both years), what is the payback period for their system?

problem 4: A 20-kW CHP system has an electrical efficiency of 40% and a thermal efficiency of40%. Its \$45,000 cost is paid for with an 7.5%, twenty-year loan having annual paymentsof \$4386/year. Its heat output displaces gas costing \$10 per million Btu that would havebeen burned in an existing 85%-efficient boiler. If the CHP system has a capacity factor(CF) of 0.90 (in essence it runs only 90% of the time during which it delivers the full 20 kW), find its cost of electricity.

Electrical & Electronics, Engineering

• Category:- Electrical & Electronics
• Reference No.:- M96351

Have any Question?

## Related Questions in Electrical & Electronics

### The single-phase full-bridge inverter from fig 62a has a

The single-phase full-bridge inverter from Fig. 6.2a has a square-wave voltage across a series R-L load. The switching frequency is 50 Hz, the DC input voltage is 250 V, and the load is a serial connection of R = 10 Ω an ...

### Write the expression for the vector distance of a point in

Write the expression for the vector distance of a point in a rectangular room from one corner of the room, choosing the three edges meeting at that point as the coordinate axes. Describe the vector distance field associa ...

### Question what is the thevenin theorem or

Question: What is the thevenin theorem or steps

### 1 in kademlia assume m 4 and active nodes are n4 n7 and

1. In Kademlia, assume m = 4 and active nodes are N4, N7, and N12. Where is the key k3 stored in this system? 2. In Chord, assume the size of the identifier space is 16. The active nodes are N3, N6, N8, and N12. Show the ...

### The performance of a journal bearing around a rotating

The performance of a journal bearing around a rotating shaft is a function of the following variables: Q, the rate of flow lubricating oil to the bearing in volume per unit time; D, the bearing diameter; N, the shaft spe ...

### 1 in multimedia communication assume a sender can encode an

1. In multimedia communication, assume a sender can encode an image using only JPEG encoding, but the potential receiver can only decode an image if it is encoded in GIF. Can these two entities exchange multimedia data? ...

### For a uniform plane wave propagating in free space the

For a uniform plane wave propagating in free space, the apparent phase velocities along the x- and y-directions are found to be respectively. Find the direction of propagation of the wave.

### 1 discuss the application of the gradient concept for the

1. Discuss the application of the gradient concept for the determination of unit vector normal to a surface. 2. How would you find the rate of increase of a scalar function along a specified direction by using the gradie ...

### Diode circuits1 the 6v zener diode below has zero zener

Diode Circuits 1. The 6V zener diode below has zero Zener resistance and a knee current of 5mA.The minimum value of R, so that the voltage across it does not fall below 6V is 2.A zener diode in the circuit shown in below ...

### 1 what is the direction of the magnetic field for a uniform

1. What is the direction of the magnetic field for a uniform plane wave having its electric field in the positive z-direction and propagating in the positive x-direction? 2. What is intrinsic impedance? What is its value ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro