Answer:
I. 3.316 kW
II. 1.218 kW
III. 2.72
Explanation:
At state 1, the enthalpy and entropy are determined using the given data from A-13.
At P1 = 200kpa and T1 = 0,
h1 = 253.07 kJ/kg
s1 = 0.9699 kJ/kgK
At state 2, the isentropic enthalpy is determined at P2 = 1400kpa and s1 = s2 by interpolation. Thus
h2(s) = 295.95 kJ/kg
The actual enthalpy is then gotten by
h2 = h1 + [h2(s) - h1]/n
h2 = 253.07 + [295.95 - 253.07]/0.88
h2 = 253.07 + 48.73
h2 = 301.8 kJ/kg
h3 = h4 = 120.43 kJ/kg
Heating load is determined from energy balance, thus,
Q'l = m'(h1 - h4)
Q'l = 0.025(253.07 - 120.43)
Q'l = 0.025 * 132.64
Q'l = 3.316 kW
Power is determined by using
W' = m'(h2 - h1)
W'= 0.025(301.8 - 253.07)
W'= 0.025 * 48.73
W'= 1.218 kW
The Coefficient Of Performance is Q'l / W'
COP = 3.316/1.218
COP = 2.72
I’m just here for points because I have test and I need them lol
To look at your surroundings and see if there’s any tall mountains because they can effect air currents
Answer:
A recrystallization process differs mainly from a restoration process (microestructures of a cold worked sample) in that the first, the microstructure of the final product consists mainly of high angle borders.
Explanation:
The microstructure of a cold worked material has a high energy stored in dislocations and subgrains. During a heat treatment, this microstructure evolves in order to achieve a more stable state by reducing its energy. The complex microscopic mechanisms that take place during this process have been traditionally encompassed in three categories: restoration, recrystallization and grain growth, which will be discussed later.
These processes generally lead to the total or partial recovery of the original properties of the material (ductility, resistance). They can take place under dynamic conditions, that is, during thermomechanical processing or when the material is subsequently deformed at high temperature, and under static conditions, that is, during a heat treatment after thermomechanical processing.
The term <em>restoration</em> encompasses the following succession of micromechanism: formation of dislocation cells, annihilation of dislocations within them, formation of subgrains and their growth.
<em>A recrystallization process differs mainly from a restoration process in that in the first one the microstructure of the final product is mainly formed by high-angle borders.</em>
The statements which are true about client-side DNS include all of the following;
B. Client-side DNS should be configured to point towards the DNS server that is authoritative for the domain that client wants to join.
C. Check out DNS settings using the NSLookup command.
D. Check out DNS settings using the DIG command.
E. The cache.dns file has the IP addresses of the 13 root DNS servers.
B. If a web site can be reached by IP address and not by host name, then DNS or the Hosts file would be the problem.
<h3>What is a DNS server?</h3>
In Computer technology, a DNS server can be defined as a type of server that is designed and developed to translate domain names into IP addresses, so as to allow end users access websites and other internet resources through a web browser.
This ultimately implies that, a DNS server simply refers to a type of server that is designed and developed to translate requests for domain names into IP addresses for end users.
Read more on a domain names here: brainly.com/question/19268299
#SPJ1
