Solar Space Heating System… et al. SGROI, HUBNER
Test systems installed back in 1982 are still working today without maintenance. Over 30 years of service without any repair.
As stated by EcoWorld Media LLC … How much solar energy hits the Earth?
If solar power is the purest form of renewable energy known, then how much solar power have we got? The answer to this question, when considered alongside how efficiently we can convert raw sunshine into usable power, helps determine whether or not it is realistic to consider solar energy as a viable alternative to conventional energy sources.
In full sun, you can safely assume about 100 watts of solar energy per square foot. If you assume 12 hours of sun per day, this equates to 438,000 watt-hours per square foot per year. Based on 27,878,400 square feet per square mile, sunlight bestows a whopping 12.2 trillion watt-hours per square mile per year.
With these assumptions, figuring out how much solar energy hits the entire planet is relatively simple. 12.2 trillion watt-hours converts to 12,211 gigawatt-hours, and based on 8,760 hours per year, and 197 million square miles of earth’s surface (including the oceans), the earth receives about 274 million gigawatt-years of solar energy, which translates to an astonishing 8.2 million “quads” of Btu energy per year.
A “quad Btu” refers to one quadrillion British Thermal Units of energy, a common term used by energy economists. The entire human race currently uses about 400 quads of energy (in all forms) per year. Put another way, the solar energy hitting the earth exceeds the total energy consumed by humanity by a factor of over 20,000 times.
Clearly there is enough solar energy available to fulfill all the human race’s energy requirements now, and for all practical purposes, forever. The key is developing technologies that efficiently convert solar power into usable energy in a cost-effective manner.
Apparatus for the collection of solar heat energy and a solar collector: A passive parabolic sun tracking reflector with multiple isolated absorber chambers solar heating collector…US 4515149 A
The design philosophy: Minimally … there should be no reason your domestic space heating system needs to be ON when it’s a sunny day, whether it’s a home, office, or commercial shop, no matter how cold the ambient conditions.
An apparatus for the collection of solar heat energy and a solar collector for use therewith in which a fluid media is conducted to flow in heat exchange relation with a heat absorber that can be selectively activated and deactivated for use without disassembly of the apparatus and in which the heat absorber is enclosed within a heat exchanger having a plurality of chambers at least one of which is in the path of the direct rays of the sun, but which permits an exchange and equalization of temperatures in all of the chambers while the whole is enclosed in an outer housing.
Tested results of US 4515149 A:
A 40in X 8ft (two panel system) can deliver a temperature differential of 36 – 39Fdegs. from ambient input temperatures at 240 CFM. Longer panel systems produce increased efficiencies.
40⁰F air temperature input – 76⁰F air temperature output = 36⁰F change in air temperature
BTUH = Temp. Rise X CFM X 1.08
36⁰F differential X 240CFMs air flow X 1.08 = 9331.2 BTUH
System size comparison to other systems et. al. BTU per sq. ft.
40in /12 = 3.3333 ft.
3.3333ft X 8ft = 26.666 sq. ft. (total square foot of this system with two solar panels)
9331.2 BTUH / 26.666 sq. ft. = 349.9 BTUs per sq. Ft. (a good way to compare different solar panel efficiencies)
OR … US 4515149 a two solar panel system with 26.666 sq. ft. is equal to a 2.7KW heater
KW = Temp. Rise (F) X CFM (Cubic Feet per Minute… air flow) / 3193
36⁰F differential X 240CFM / 3193 = 2.7KW
These results are contingent upon atmospheric conditions, height above sea level, angle of the sun, and are least effected by ambient temperatures.
Test systems installed back in 1982 are still working today without any maintenance …for over 30 years of service with no repair . A 350CFM blower or fan should be used and powered by a voltaic panel for total *off the grid* independency for day time space heating.
• 745.7 W = 1 horsepower
Last Note: What if… instead of air there was another media used as a fluid for exchange of heat. What if… this was integrated to supply thermal energy for sterling engines? What if we could use this in space for 24hrs transition of solar energy?
There are over 50 years of R&D for solar energy for the benefit of mankind where diversified technologies (even cheap DIY solar projects) have tried to solve the energy problems and drastically reduce the carbon emissions worldwide for a cleaner earth… but, still… the majority of the world is not listening. Hopefully the new generation is better informed of how fragile our earth is…
More Details About RedKingPix.com