MRW 005 Solved Assignment 2024-25
Solar Energy and Applications
MRW 005 Solved
Assignment 2024-25 : All assignments are in PDF format which would be send
on email/WhatsApp (9958676204) just after payment.
Assignment Code: ASST/ MRW 005 /2024-25
Marks: 100
Attempt all the questions:
Q.1 Explain the terms
absorptivity, reflectivity and transmissivity of radiant energy. How are they
related to each other for a black body and an opaque body?
Absorptivity
(α): This refers to the fraction of incident radiation absorbed by a material.
It indicates how well a material absorbs radiant energy. A high absorptivity
means that the material absorbs most of the incoming radiation, while a low
absorptivity means that it reflects or transmits most of the radiation.
Reflectivity
(ρ): Reflectivity is the fraction of incident radiation that is reflected by a
material. It represents the ability of a material to bounce back radiant energy
without absorbing it. A high reflectivity means that the material reflects most
of the radiation, while a low reflectivity means that it absorbs or transmits
most of the radiation.
Transmissivity
(τ): Transmissivity refers to the fraction of incident radiation that passes
through a material. It measures the ability of a material to transmit radiant
energy without absorption or reflection. High transmissivity means that the
material allows most of the radiation to pass through, while low transmissivity
means that it absorbs or reflects most of the radiation.
A black body
absorbs all incident radiation, so its absorptivity (α) is 1, and its
reflectivity (ρ) and transmissivity (τ) are both 0. This means that all the
energy incident on a black body is absorbed, none is reflected, and none is
transmitted.
An opaque body
reflects or absorbs most of the incident radiation, so its absorptivity (α) is
relatively high, its reflectivity (ρ) is also relatively high, and its
transmissivity (τ) is low. However, the sum of absorptivity, reflectivity, and
transmissivity for an opaque body is typically close to 1, as it either absorbs
or reflects nearly all incident radiation and transmits very little.
In summary,
absorptivity, reflectivity, and transmissivity are related to each other such
that for any given material, the sum of these three parameters is equal to 1.
The exact values depend on the material and its properties.
Q.2 a) Give the
classification of various types of solar cell?
b) Describe and draw the current-voltage (V-I)
characteristics of a PV cell.
Q.3 a) Explain the
construction of solar module. How does a PV panel rated?
b) State various losses in the solar module.
Q.4 Explain
classification of heat conversion devices. Also, elaborate the advantages and
disadvantages of concentrating and non-concentrating solar thermal devices.
Q.5 Explain the
function of stand-alone solar PV system without battery with neat block diagram
of any one configuration?
Q.6 List the various
steps involved in the design of solar PV system.
Q.7 What is the
effective life of a photovoltaic module? State the factors on which voltage
output of a PV module depends.
Q.8 Explain the
working principles of Solar Air Heating Systems.
Q.9 Describe the
concept of direct gain heating and cooling of solar passive buildings. Which
materials should be used in such designs?
Q.10 a) Describe the
functioning of a solar dryer. Explain dehydration of Garlic.
b) Give five steps which you can follow in order
to reduce the effect of greenhouse.
MRW 005 Solved
Assignment 2024-25 : All assignments are in PDF format which would be send
on email/WhatsApp (9958676204) just after payment.
MRW 005 Solved
Assignment 2024-25, MRW 005 Solved Assignment 2024-25, MRW 005 Solved Assignment
2024-25, MRW 005 Assignment, IGNOU
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IGNOU MRW 005 Solved
Assignment 2024-25 :- Those students
who had successfully submitted their Assignments to their allocated study
centers can now check their Assignment Status. Alongside --assignment status,
they will also checkout their assignment marks & result. All this is often
available in a web mode. After submitting the assignment, you'll check you MRW
005 Solved Assignment 2024-25 only after 3-4 weeks. MRW 005 Solved Assignment 2024-25
it'd take 40 days to declare MRW 005 Solved Assignment 2024-25
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