Comparing Solar Air Heater Designs & Performance — Stonehaven Life In my last post – Solar Heat: Free for the Taking, I covered some of the background information on how to take advantage of the sun’s energy to help heat your home. Building a solar air heater is an easy and rewarding project for both beginner or experienced DIYers and there are all kinds of different designs and plans floating around – just ask Mr.Google. The most popular and flexible DIY solar heater projects seems to be the self-contained unit which can be attached to a wall or roof for supplementary heat. Today I’m going to look at 4 of the most popular variations of these units. And thanks to Gary & Scott, a couple of dedicated solar enthusiasts, I can share a brief summary of the comparable performance you might expect from these units. Design basics All of these units share common features and can be built with basic power and hand tools. In all cases these are the key features: Frame – The frame is typically made of 1 x 6 or 2 x 6 lumber. Solar absorber Back-pass Type In a nutshell:
How I built an electricity producing wind turbine Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. I found a great piece of property. The problem is, it's so remote that there is no electric service available. One thing I noticed right away about my property is that most of the time, the wind is blowing. Let me state up front that I probably won't be able to help you out much if you decide to build your own wind turbine. Since no one seems to be reading the FAQ, I will answer the No. 1 question I get many, many times a day right here up front. Update: Here is a video of the wind turbine in operation. Update: Here is a video of me assembling and setting up the wind turbine on my remote off-grid property. I started the process of designing my wind turbine by Googling for information on home-built wind turbines. I reduced the project to just five little systems. for only $26. .
The Parsimonious Princess: Canned Heat: How to Make an Emergency Heater It seems that just about every part of the U.S. has been slammed with severe winter weather lately. Just the other I day, I was watching the news and saw the lines of stranded cars buried in snow outside of Chicago. The severe weather stretched over 2,000 miles, leaving a lot of people without power. No power can mean no heat and that can be a scary thing with the temperatures being as low as they are. I attended a class held at my church a couple days ago where we learned about and made emergency heaters. To make your emergency heater, you'll need:A new, quart-sized paint can with a lid. When you want to use the heater, pop open the lid, using the quarter as leverage. Important: if you're going to use this heater in a car, crack open the windows for ventilation. The teacher of the class said that she burned her heater (to test it out) in her kitchen and it lasted for five hours. You can also use this heater in your home in the event of an emergency.
Shipping Container Homes: Hot and Cold Heating And Cooling The most important part of heating and cooling goes back to how well you insulate the container, my guess is the better the job the less energy need to heat and cool. For larger place I would consider making it a Passive Haus, and include a heat exchanger Basically the warm air going out heats the cold air coming in and vise versa, a well insulated passive hause will hardly need any additional heat. One idea I had looked into is Geothermal for cooling. A trench dug deeper than 6 feet and as long as you can make it with just a coil of pipe laid in, this would use the stableized cold ground temperature to cool air in pipe, the longer it travels threw pipe the better its going to cool, anyway a simple connection to the front of container, once drawbridge is down and a small fan you can suck the warm air from ceiling height threw the pipe and return it as cool air, very simple but I think it will work in a small area very well.
My Home-Built Solar Panel Projects I am a person who loves to build things. I'd rather build something than buy it, if I can. Even if it something inexpensive, I like the challenge of figuring out how to build it myself, rather than just buying it and being part of the mindless consumer culture. If an item is really expensive, like solar panels, then I have a monetary incentive to try to build it myself, as well as the challenge. For a long time I thought solar panels were just too difficult for me to build. After doing lots of research, I discovered that they aren't that hard to build at all. This is my Suntracker. Click here to see how I built the Suntracker. My first home-made solar panel was a 60 Watt, 12 Volt unit I built a few years ago so I would have power on my remote, off-grid property. Click here to see how I built the 60 Watt panel. My second home-built solar panel is a folding 15 Watt unit. Click here to see how I built the 15 Watt folding panel.
How To Build A Solar Room Heater Imagine it’s a cold autumn, winter or spring day with temperatures of a few degrees. This self-powered device can heat up your room from 10 degrees to 29. Keep reading… (C) G. Forrest Cook 2002 (Photo 1) Solar furnace mounted on an external door (Figure 1) Expanded parts layout (Photo 3) Warm air exits from the output port on the top (Photo 2) The fan pushes cold air into the input port on the bottom. (Figure 2) Schematic Introduction This project involves the construction of a self contained solar box furnace (Photo 1). Specifications Nominal Operating Voltage: 12VDCOperating Current: 200ma (depending on the fan)Heat Output: depending on the size of the box, the equivalentof a few hundred watts when the box is in full sun. Some example data was taken with the solar furnace. Theory This is a self-contained and self-powered device. The insulation at the back of the box prevents heat loss through the cold side. Construction Cut the collector plate so that it fits into the box. Alignment Use Parts
Solar energy projects for Do It Yourselfers to save money and reduce pollution A Square Foot Gardening Layout with Great Tips for Garden Designs Square foot gardening needs planning in layout and design, but a square foot garden using raised bed gardening methods will have more vegetables, in less space, with half the effort. Mel Bartholomew is a man who has been attributed to creating a different method of growing vegetables and flowers, and that is not in rows, but in squares. Thus, the term Square-Foot Gardening, or for some, squarefoot gardening. However there is far more to this way of planting other than how you plant your plants. To quote Mel about his square foot method of gardening he says, "Square Foot Gardening is a new way to garden, in less space, with less work." What is Square Foot Gardening? Square Foot Gardening Versus Conventional Gardening Often we start off with good intentions of having a vegetable garden. Square Foot Gardening: Getting Started - The Soil Many people find themselves with soil that is not the perfect growing medium for growing great flowers and vegetables. Square Foot Gardening: Planting the Seeds
BuildItSolar: Solar energy projects for Do It Yourselfers to save money and reduce pollution 3-Piece Kids Storage Table and Chair Set | Overstock.com Shopping - The Best Deals on Kids' Table & Chair Sets Shipping: Usually leaves our warehouse in 1-2 business days. * Standard Return Policy: International Shipping: * For your safety, some orders go through our loss prevention department. ** Most Oversize orders are delivered within 1-4 weeks. Solar Air Collector Performance Testing for DIY Collectors Search The Renewable Energy site for Do-It-Yourselfers The method used was to build 4 by 8 ft prototypes of several different designs and test them side by side. Side by side testing of collectors eliminates a lot of the difficulties in doing good comparison tests of collectors -- if the two collector designs being compared are sitting right next to each other and aimed in the same direction, then the performance of the two can be compared in a pretty straight forward way -- you don't have to worry of variations in sun intensity, ambient temperature, wind, ... because both collectors are seeing the same conditions. In each of the side by side tests, a new collector design was tested next to the same baseline design collector that is the same each time. Heat output from a collector is directly proportional to the product of the (temperature rise through the collector) times the (flow rate through the collector). My partner in crime for this testing was Scott. Empty Box Collector