Solar Energy Overview - community.asme.org · 4/9/2015 (c) Michael Shonka, Solar Heat & 4 Electric,...
Transcript of Solar Energy Overview - community.asme.org · 4/9/2015 (c) Michael Shonka, Solar Heat & 4 Electric,...
1 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Energy Overview
Presented by
Michael Shonka Solar Heat & Electric
www.SolarOmaha.com
Solar Energy
2 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Agenda
Overview
Current market conditions and energy trends
Renewable energies
Types of solar
Research efforts
Economic impact of solar
3 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Goals
By the end of this presentation you should
be able to;
define passive and active solar,
understand the definitions for the three
types of solar systems - air, water and electric,
know the best applications for the types
of solar systems, and
validate the cost effectiveness of solar.
4 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Overview
The need for energy is constant and rising. Traditional sources are costly and require long lead times to build.
Renewable (solar/wind/biomass) energy sources can be implemented rapidly and can contribute to the grid from multiple locations (distributed generation).
Extensive research on technologies, market opportunities and financial programs has reduced the investment risk, improving returns.
5 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Current Market Conditions
Global problems requiring local solutions - same situation in Europe as Asia as US
Growth in energy demand - constant and accelerating
Awareness of finite energy resources -
energy costs include social and environmental
Technology can make a difference -
but it requires more investment and planning
6 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Current Energy Trends
Mostly not good…
China could consume the world’s petro in 25 yrs.
US still builds / buys the “wrong cars”
Ethanol is transitional… water costs are too high
Battery technology is 50 years old
Main problem – we have few options
Insufficient research funding… poor strategies
7 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Global Solar Radiation
8 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Insolation: The rate of delivery of solar
radiation per unit of horizontal surface.
Nebraska averages 3.5 to 4 vs. 5.5 to 6 for
Arizona. The measurement is in kWh/m2/day.
Nebraska is 15th best nationally.
9 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Renewable Energies
Nebraska imports >95% of its energy
Hydropower (1% of Nebraska’s energy source)
Solar – 9th nationally
Wind – 4th nationally
Biomass – methane recovery
Geothermal – mostly heat pumps
10 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar: Passive and Active
Passive – sun warms an object and heat migrates through natural diffusion
- Sunroom on the south side of a house warms the dark tile floor which radiates into the adjacent room
Active – requires energy to move heat from one location to another
- Solar collectors using a pump to warm water and return the fluid to a tank
11 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Types of Solar: Thermal and Electric
Solar Thermal –
Warm Air - hollow collectors
Hot Water - copper absorbers
Solar Electric – silicon and polymers
Used in all markets –
residential, commercial, and industrial
12 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Warm Air Systems
Best use: daytime space heating
Secondary: domestic hot water
Cost: least expensive
Recommendations:
One 4’x8’ collector for about
400 ft2 with short duct runs.
Usually have a minimum of
two collectors.
13 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Air Collector
14 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
15 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
16 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Air – 5 Collectors, 3 Zones
17 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
B
WAS
B
WAS
CAR
B
WAS
CAR CAR
Northeast
Bedroom
Closet
North
Bedroom
Closet
Front room
Staircase
Kitchen
Ceiling
Lav Sink
Ceiling
Master
Bedroom
Closet
CAR = Cold Air Return
WAS = Warm Air Supply
B = Blower +
Back-draft damper
18 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Air & Radiant Floor Aircraft Hanger
19 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Air & Radiant Floor Aircraft Hanger
20 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Hot Water Systems
Best use: domestic hot water
Secondary: storage and space heating*
Cost: low to moderate
Recommendations:
Minimum of two 4’x8’
collectors with 60-80 gallon
tank for closed loop or
drainback systems.
* Can be tied to
radiant floor or
forced air furnace
Closed Loop vs. Drain Back Systems
21 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
22 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
23 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Hot Water – Flat Plate vs. ETs
Higher Temperature, but drawbacks.
Evacuated Tubes
24 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
s
25 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
26 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
27 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Hot Water - Condos
28 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Hot Water & Storage System
29 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Hot Water - Apartments
30 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Hot Water - Hospital
31 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Radiant Floor Layout – Solar Heating
32 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
33 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar – Radiant Floor
Solar Hot Water
34 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Space Heating in a
Greenhouse
Fan Coil for Space Heating
Solar Tank
Pumps: 1. Tables 2. Fin Tube 3. PEX 4. Solar
3.
4.
2. 1.
Solar Heat and Electric:
www.SolarOmaha.com
Solar Heating a Greenhouse
The water is circulated through four different circuits for space heating;
1. perimeter fin tube,
2. tubing underneath plant tables,
3. perimeter PEX tube, and
4. a water to air fan coil.
Solar Greenhouse - Year Around Use
38 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Greenhouse - Radiant Table
39 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
40 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
MCC Solar Lab
41 4/9/2015 (c) Michael Shonka, Solar Heat &
Electric, www.solaromaha.com
Solar Thermal
Thank you
for your
time and consideration. For more information: Michael Shonka www.NebraskansForSolar.org
402-590-5900 www.NEO.ne.gov
[email protected] www.energy.IOWA.gov
www.SolarOmaha.com www.NREL.gov