17. Statements An engineer wants to design an ATES system for a large office building in a moderate climate. The annual cooling demand is 200 [MWh], the annual heating demand is 800 [MWh] too. For the heating a heat pump with SCOP 8 is coupled to the warm well. The cooling comes solely from the cold well. All heat exchangers are assumed to be perfect and there are no losses in pipes. Which of these statements are correct? (Note: multiple answers possible) 200 [MWh] heat is loaded at the warm well 100 [MWh] heat is loaded at the warm well 700 [MWh] heat is load at the warm well 800 [MWh] cold is loaded at the cold well 700 [MWh] cold is loaded at the cold well 200 [MWh] cold is loaded at the cold well To balance the ground additional cold should be loaded (e.g. by using an additional heat exchanger with cold outdoor air in winter) or the heating demand should be reduced To balance the ground additional heat should be loaded (e.g. by using additional heat exchanger coupled to a solar boiler) or the heating demand should be reduced

17. Statements An engineer wants to design an ATES system for a large office building in a moderate climate. The annual cooling demand is 200 [MWh], the annual heating demand is 800 [MWh] too. For the heating a heat pump with SCOP 8 is coupled to the warm well. The cooling comes solely from the cold well. All heat exchangers are assumed to be perfect and there are no losses in pipes. Which of these statements are correct? (Note: multiple answers possible) 200 [MWh] heat is loaded at the warm well 100 [MWh] heat is loaded at the warm well 700 [MWh] heat is load at the warm well 800 [MWh] cold is loaded at the cold well 700 [MWh] cold is loaded at the cold well 200 [MWh] cold is loaded at the cold well To balance the ground additional cold should be loaded (e.g. by using an additional heat exchanger with cold outdoor air in winter) or the heating demand should be reduced To balance the ground additional heat should be loaded (e.g. by using additional heat exchanger coupled to a solar boiler) or the heating demand should be reduced

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Consider a 5A ammeter is connected to the secondary side of a 100/5A current transformer (CT) in order to measure the current of the circuit. Safety considerations require that the CT has to be short circuited (or the primary circuit switched off) during a replacement of the ammeter. Explain why this is needed.
1. Electrical explosions directly into the face of a person working on or near energizedelectrical equipment can and will cause serious injury or death. OSHA laws and NFPA70E have strict safety requirements for working on electrical equipment. The basicrules are to turn off the power before working on the equipment and to wear the propertype of nonflammable clothing. To further provide safety for the worker, the NationalElectrical Code has a requirement pertaining to arc-flash hazard warning. This requirement is found in of the NEC.
Discuss the concept of load shedding in power systems and the criteria used for implementing load shedding schemes.
Do the following: Solve for the voltage across the appliance and the current through it by referring the appliance to the transformer primary. (Assign the convenience outlet voltage as the reference phasor i.e. at 0o) Draw the circuit that would solve for VL and IL. Compute all referred values and label all components. Solve for VL and IL
Q1 The oil test condition analysis is the ultimate starting point for any HV transformer assessment. Like blood testing in human beings, it's an essential indicator of good health. i) Sketch HV Oil test condition setup to test the condition of HV power transformer with detailed labeling. ii) As a testing engineer, how do you check the condition of transformer? iii) How often should transformer oil be tested as per industrial practice? iiii) How to improve the life of the transformer oil?
Compared to the original circuit that it replaces, an equivalent circuit will always have:a. the same power dissipation.b. the same number of componentsc. the same voltage and current for a specific loadd. all of the above
Explain the concept of power system stability and its importance. What are the different types of power system stability, and what measures can be taken to maintain or improve stability in a power grid?
A housing estate is being built and the electrical system for each house from a range of 2 to 20-bedroom houses from single floor apartments to 3 storey buildings are on offer throughout the estate. There are commercial buildings to be constructed for shopping purposes as well. What risks exist and what are the components and methods we use to mitigate these risks both at the substation and at the consumer/ residential side. Describe how these would all fit together.
In the distribution transformer;In the transformer used for the distribution of electricity to the houses, 3.3 kilovolts enters and 400 volts come out. When we make the phase-neutral calculation, that is, when we divide it by √3, we get 230 volts and 220 volts coming to the sockets. Where does the remaining 10 volts go? (Can you explain with figure) is this about 30 degree phase shift?
A number of cables are tested for insulation resistance. The highest individual value is 400 M and the lowest is 40 MQ. The measured value, when the cables are all connected in parallel, will be..
A transformer with a central tap was purchased that provides a voltage of 11Vac between the central tap and either of its ends. We want to make a regulated voltage source that is ± 12Vdc ... is it possible to make the source with the transformer you bought or need to go change it? What would you recommend?What are the minimum components that you must buy to make the voltage source? Just provide your view please