100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
SJSU ENVS 119 Final Study Guide Questions And Answers Latest Updates CA$11.60   Add to cart
Quickly navigate to
Preview
  2.  
  3. SJSU ENVS 119
  4.  
  5. SJSU ENVS 119

Exam (elaborations)

SJSU ENVS 119 Final Study Guide Questions And Answers Latest Updates
 10 views  0 purchase
  • Course
  • SJSU ENVS 119
  • Institution
  • SJSU ENVS 119

Understand energy intermittency of Solar and why energy storage is needed. - ️️solar radiation is zero at night, and affected by cloud cover and air turbidity during the order that it not be wasted, as well as offering back-up power in scenarios where renewables are used in some way. Defin...

[Show more]

Preview 2 out of 6  pages

Document information

  • October 6, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • sjsu envs 119

Written for

  • SJSU ENVS 119
  • SJSU ENVS 119

Seller

avatar-seller
PatrickKaylian

Reviews received

Content preview

SJSU ENVS 119 Final Study Guide
Understand energy intermittency of Solar and why energy storage is needed. -
✔️✔️solar radiation is zero at night, and affected by cloud cover and air turbidity during
the day.in order that it not be wasted, as well as offering back-up power in scenarios
where renewables are used in some way.

Define payback time for average project in Wind energy. - ✔️✔️he amount of time it
would take to save enough money in operation costs to pay for the equipment

How can the social gap in renewable energy be overcome? - ✔️✔️Include more people
in the conversation and what could be the benefit.

Define « intermittent » for wind energy. Why is it a problem? - ✔️✔️Wind energy can
be on/off depending on the weather.

Primary source of power for wind energy? - ✔️✔️Solar energy
Due to uneven heating of Earths surface

How much of CA electricity is likely to be produced from Wind by 2050. - ✔️✔️35%

Passive home design - ✔️✔️a system of putting the sun's energy to use without
requiring mechanical devices to distribute the collected heat

Insolation - ✔️✔️the delivery rate of solar radiation per unit of horizontal surface

Insulation - ✔️✔️A substance that reduces the transfer of thermal energy.

Solar Path - ✔️✔️refers to orientation of building so that the sun passes and heats the
house

HDD - ✔️✔️Correlation on temp. outside vs. temp. inside

How do photovoltaics generate electricity? - ✔️✔️a method of converting sunlight to
electricity using layers of materials that either readily give up or absorb electrons

Define: Solar Photovoltaic (PV) - ✔️✔️a power system designed to supply usable solar
power by means of photovoltaics

Define: Solar Thermal Energy - ✔️✔️energy produced by converting solar energy into
electrical energy through the use of mirrors

, Understand efficiency factor, what is the normal efficiency from PV panels? - ✔️✔️Most
typical silicon solar cells have a maximum efficiency of around 15-22%.


What is EROI and how do you calculate it? - ✔️✔️Energy Return on Investment (EROI)
is the amount of energy that has to be expended in order to produce a certain amount of
energy.EROI = Energy Output / Energy Input

EPBT - ✔️✔️Energy Pay Back Time

Why are a majority of renewable energy projects are now able to compete with fossil
fuels on the market place, even without subsidies? - ✔️✔️the unsubsidized cost of
solar and wind power has already reached parity with conventional fossil fuels in many
parts of the United States.

How is the potential wind power output calculated for a specific site and turbine?
(Formula) - ✔️✔️P=0.5 x p x Cp x v^3 x As

p= 1.2kg/m^3
Cp= energy coefficient (.4-.5)
v^3= meters per second (double wind speeds=8 fold in power)
As=m^2 (area swept by blade)


LCA Category - ✔️✔️Life-Cycle Assessment: a technique to assess environmental
impacts associated with all the stages of a product's life from raw material extraction
through materials processing, manufacture, distribution, use, repair and maintenance,
and disposal or recycling

system boundaries - ✔️✔️the border between a system and the rest of the
environment

functional unit - ✔️✔️a quantified description of the performance requirements that the
product system fulfills

Define 1st Generation biofuels - ✔️✔️refer to the fuels that have been derived from
sources like starch, sugar, animal fats and vegetable oil. The oil is obtained using the
conventional techniques of production. (firewood)

Define 2nd Generation biofuels - ✔️✔️also known as advanced biofuels, are fuels that
can be manufactured from various types of non-food biomass. Biomass in this context
means plant materials and animal waste used especially as a source of fuel.

Define 3rd Generation biofuels - ✔️✔️refers to biofuel derived from algae. Previously,
algae were lumped in with second generation biofuels.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller PatrickKaylian. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.60. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

77254 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$11.60
  • (0)
  Add to cart