Energy Efficient Windows

This post was written by me but originally appeared at http://blog.tashmans.com/

The first window was made about 3.3 million years ago and was a hole in the wall of whatever was being used for shelter at the time. The purpose was to better see enemies and wild animals approaching as well as to enjoy a cool breeze on a hot summer night.

The Romans were the first known to use glass for windows, a technology likely first produced in Roman Egypt—In Alexandria ca. 100 AD. The technology has advanced significantly over the years although some people still use Jalousie windows which are only slightly better than a hole in the wall.

Untitled-e1430525842626Before deciding on new windows it is important to know a little bit about how the sun’s radiation works. The sun emits a lot of radiation but for the purposes of window efficiency, we can focus of visible light and radiant energy (heat). The goal, in both hot and cold climes, is to allow as much visible light through while minimizing the transference of radiant energy. There are three main ways to treat glass to make it energy efficient. These are insulated glass, low e glass, and reflective coated glass.

Insulated glass windows usually consist of two or three panes of glass separated by an inert nonconductive gas like Argon. The spacers often have a desiccant, which reduces the possibility of moisture entry.

Low emissivity glass has been coated with a microscopic metallic oxide that reflects infrared light (radiant energy) and allows visible light through. Low E coatings come in different varieties which can be customized to fit a specific location, cold and dark vs hot and light.

Public Toilet with reflecting glass

Reflective coatings are usually used in hot areas with windows getting direct sunlight. For example the front of our hardware store has very large south facing windows so we put a reflective coating on them so we wouldn’t have to use exorbitant amounts of air conditioning. Some of the more severe reflecting coatings will turn glass into a one way mirror.

The type of frame for a window is also important for durability and energy efficiency. Aluminum windows are durable and cheap but have a high heat conductivity which is bad for energy efficiency. Wood window frames look nice and have good insulating properties but require more maintenance because wood tends to warp with heat and moisture. Fiberglass frames provide good insulation and generally look better than aluminum. Fiberglass is also very strong and can accommodate a larger piece of glass. Vinyl frames are the most energy efficient, require no maintenance and can be custom treated for any environment.

Our atmosphere and magnetic field protects us from most of the Sun’s harmful radiation and we as technologically advanced animals can further protect ourselves from other inconveniences like heat and high electric bills.

Miscellaneous Electrical Load (MEL)

Miscellaneous Electrical Load (MEL)  in buildings are electric loads resulting from electronic devices not responsible for space heating, cooling, water heating, or lighting. MELs are produced by hard-wired and “plug-in” electrical devices, including home entertainment centers, kitchen electronics such as microwaves and toaster ovens, bath items such as hair dryers and electric hot tubs, and others such as security systems and ceiling fans.

Early generation phone chargers used a lot of electricity and were also a danger if left plugged into the phone. In recent years chargers for phones and other new electronics like laptops have more energy efficient features like an automatic shutoff and sleep mode.

MEL is estimated to contribute 4-12% of the total household energy usage and while many newer electronic devices will come with energy efficient features, things like refrigerators and microwaves are not replaced often so the likelihood of these devices being energy hogs is high.

The other major contributor to MEL are devices that are always connected to the internet. The increasing use of electronics connected to WiFi for example is only going to increase as we move inexorably towards a wireless world. Internet business experts estimate that by 2020 there will be 50 billion devices constantly connected to the internet. Some of the more futuristic things that will be connected to your phone or the computer chip in your brain are coffee makers, pacemakers, cars, and of course cows.

There are a few proposed solutions, some more feasible and long term than others. TheWhole House Switch is somewhat like a circuit breaker for everything in your house. The idea is that when you go out all the electronics can be switched off all at once. This solution requires some pretty serious rewiring that may not even offset the energy saved.

The best solution is a combination of advances in the technology combined with government incentives to upgrades appliances to the latest energy efficient models. For example, new advances in semi-conductor materials means faster and cheaper energy transmission with little environmental loss. When exactly these scientific progressions will be available for the homeowner is still a matter of some debate.

One short term solution is to put timers on the devices that don’t need to be on all night. I have a timer attached to my TV, modem, and cable box that shuts off automatically at night. Timers can be purchased from Tashman Home Center.

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Electronic Medical Records and Personal Health Records

With the ever expanding Internet opening possibilities across various forms of business, we find ourselves in an age where information is readily available at our fingertips. Databases have been built regarding driving records, real estate, education, and more to provide a more efficient and less time consuming practice of data entry. Electronic medical records are no different and could be more important since the information is invaluable. There is a wide scope of possibilities for using electronic medical records.

1. Instant Sharing – In some care facilities, methods exist to share a patient’s information with another facility over the Internet in a different city. This could prove to be vital if the information requested pertains to a life threatening circumstance.

2. Clicks Away – With electronic medical and personal health records, the information is just a few clicks away. Instead of sifting through files and folders to find an individual’s information, it could just be a matter of entering a name search.

3. Billing – Most facilities have implemented some kind of a billing system for patients. Many of these billing applications can be used in conjunction with a medical record for further data analysis later on.

4. Web-Based – Data centers and the Cloud have increased efficiency of sharing patient information with practitioners around the globe. Some of these electronic records are based on the Internet alleviating a facility’s need for a sufficient data server. With the inclusion of images, x-rays, and more a server can get quite crowded with data in a largely populated area.

5. Cross Platform – Electronic medical and personal health records can be accessed across multiple devices. As some are web-based, a web browser on a tablet or phone would suffice. However, some of these EMR developers have made apps for Android and iPad for a more efficient tablet use. These apps connect to the database on the Internet without the need of a browser and all pertinent information can be viewed.

6. Prescriptions – Advancements in technology have allowed some of the EMR applications the ability to send e-prescriptions to participating vendors. Programs such as Practice Fusion incorporate a variety of tools to create greater efficiency in the facility including messaging, reporting, and billing.

7. Quick Entry – Many EMR programs allow a practitioner the ability to simply click on symptoms to build a record reducing the amount of typing. This could also reduce miscommunications and illegible comments about how an individual patient has been treated in the past.

The days of old where we cut down trees to create paper for our records is slowly coming to an end. It was a method that worked, but technology and the need for efficiency are growing ever closer to triumph over archaic methods of communication. With a little ingenuity and innovation, we could very well create a single database that can be used to provide every piece of information about a specific individual.

About the Author:

Ken Myers is an expert adviser on in-home care & related family safety issues to many websites and groups. He is a regular contributor to www.gonannies.com. You can get in touch with him at kmyers.ceo@gmail.com.

Photovoltaic PV Solar Panels on the rise

Lowered costs and increasing efficiency have helped the steady increase in the use of Solar PV panels.
There have been some incredible advances in the methods used to capture solar energy.  Solar paint and thin plastic cells are some of the new technologies but PV panels are still the most efficient way to capture energy from the sun.

The modular nature of solar cells are also being used in more creative and aesthetically pleasing ways. Each cell must have a separate connection because stringing them together has the same effect as Christmas lighting, if one goes out, there all do. Being modular, however, increases the versatility of the panel placement.

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Increased efficiency has also made the technology workable in areas that don’t receive a huge amount of direct sunlight. Solar power is a small thing that most landowners can take advantage of to reduce costs and stabilize energy bills.

HUGO CHAVEZ IS DEAD, LET OIL PRICES SOAR!

President of Venezuela Hugo Chavez has died of cancer. There is all sorts of conflict over who will succeed him. The constitution says one thing but it is being disputed so we can look forward to some serious instability. This instability, real or perceived, will cause oil prices to rise because Venezuela is the fourth largest oil importer to the United States.

Everyone panic and fill up your gas tanks!

oil-prices-rise-EU-debt-crisis-2011

Why Iran is lost to the West.

mossadeq

Sometimes we need to stand back and look at the historical origins of current problems.

In 1953 the CIA and MI6 assassinated the democratically elected president of Iran Mohammad Mosaddegh because he intended to nationalize the Iranian oil industry. The coup, among other things, was and is a significant reason for regional war and fossil fuels issues. You may recognize the oil company that initiated the coup, it is now known as British Petroleum (BP).

Empire and Nationhood

  • ISBN-10: 0231108192

The sources used by Mary Ann Heiss in Empire and Nationhood are successful in providing credible background for her statements regarding British and American sentiments during the Iranian Oil dispute. The lack of sources from Iran means that it is a largely a two, instead of three sided account of the events. She creates a detailed picture of the negotiations from a western viewpoint using largely the correspondences of Great Britain and the United States while the viewpoint of the Iranians is pieced together from secondary sources and public announcements. The cultural bias of the western representatives is commented on, so although there is a record of Iranian negotiations, they are biased and often indignant descriptions by diplomats.
The overview of the Anglo-Iranian Oil crisis draws on many secondary works and a few books or articles written by people involved or living in Iran at the time. The secondary works are for the most part written by western historians whose titles do not suggest an evenly balanced perspective. For example the official history of the British Petroleum Company is cited a few times and many of the books are primarily concerned with the cold war. Iran was certainly important in the cold war but focusing on it might tend to show the perspectives of those fighting the war rather than that of Iran, which was a chess piece in the games being played between the US and the USSR.
The sources that contribute to the descriptions of the strained relations leading up to the rise of the nationalization movement and the rise of Mossadeq are a mix of British and American correspondences and books concerning the rise of Mossadeq and the political situation in Iran before him. This chapter, “too little too late” shows the greatest balance between eastern and western sources used. The difference is that the sources from the Middle Eastern perspective are written long after the events took place while correspondence on the part of the western diplomats give a more accurate sense of the feeling at the time. Authors whose names indicate Middle Eastern heritage are significant because they are referenced sparingly once Mossadeq is prime minister. This may have something to do with the secrecy Mossadeq afforded himself once in office. Also, the remainder of the book is largely an account of the negotiations between Mossadeq and representatives of England and the US. This means that presently we can look at the negotiations because there is a record of the internal consultations on the western end but we do not know the full extent of the pressure and constraints put on Mossadeq by political entities and public opinion. A dispatch from the state department to someone involved with debating Mossadeq on a key point shows the reasoning behind the American position while the reasoning behind the Iranian posture can only be guessed at.
Another reason for the one sidedness of the documentation is that for the most part, it was a Prime Minister talking to a diplomat who is already biased against the PM. Mossadeq had the power to make concessions so the political motivations behind his actions have to be derived from the situation in Iran. We have such a good record of the western motivations because American and British agents were constantly conferring with each other and their respective governments. It is unlikely that Mossadeq communicated with his advisors in writing and probably kept the details of his situation secret.
An important factor with regard to documentation that is not discussed in the book is the fact the Tehran at this time was chock full of spies. Channels of communication are never one hundred percent secure so information that was considered sensitive would be unlikely to be sent by telegraph for example. The author demonstrates the general fears of the US with regard to soviet interactions in Iran, but the specific threats, real or perceived, are not revealed. The author mentions documents relating to the MI-6 and CIA inspired coup that are withheld but only touches upon why the US thought the USSR would automatically take power in Iran if the economy were to fail. There is certainly logic behind the containment policy in Iran but because there is little mention of popular Iranian sentiment regarding communism aside from the actions of the Tudeh party, the policy seems to stem mainly from American paranoia.
The only primary sources that voice the position of Iran are the Correspondences between his/her Majesty’s Government in the United Kingdom and the Persian government, and related documents (concerning the oil Industry in Persia, February 1951 to September 1951) (Concerning the joint Anglo-American proposal for a settlement of the oil dispute, August 1952 to October 1952) The problem with these sources is that they were most likely documents that could be made public and were, if it suited a political aim. Most of the negotiations were done without the public knowledge or proposals were made informally at first with the reaction often eliminating the need to present them formally. What we can see in these formal documents are the last ditch efforts by Briton to save face by standing behind proposals they knew would be rejected.
It is clear that the United States was integral in the dispute between the Iranian Government, the AIOC and the British Government but the records taken from the national Archives verses the ones taken from the Public Record Office show that the available American records are more concise and therefore less accurate. The documents from the Public Record Office in England include minutes, memorandums and other immediate sources. These kinds of sources, if unaltered, are likely to be the most accurate and the most revealing. The record of the Secretary of Defense should in contrast be far less revealing and is certainly not cited as frequently as the Foreign Office correspondence. These American sources are not likely to contain information that could be considered inflammatory. That is to say that the United States would not be likely to make information public that could add to the hatred of the US by Iran.
The author does a satisfactory job of filling in the blanks created by the lack of Iranian primary sources. She gives a reasonable assessment of the political situation in Iran based on western perceptions that were probably fairly accurate because of the strategic concerns in Iran. The memoirs of Mossadeq may have helped to explain some of the pressures he faced in Iran but even a person’s memory of their own actions cannot be trusted as fact. While the author does not attempt to analyze individual Iranian sentiment for lack of material, it would seems possible to find a primary source written by an Iranian who was not Mossadeq or the Shah. She does a good job showing the shift from British to American domination of the Iranian oil as well as their reactions to the nationalist movement.

bp

Review Bibiography

International History Review v. 21 no. 4 (Dec. 1999). Mejcher, Helmut, reviewerhttp://metaquest.bc.edu:4000/sfx_local?sid=HWW:ACIT&genre=article&pid=%3Can%3E199901501686015%3C%2Fan%3E&aulast=Amuzegar&aufirst=Jahangir&issn=0026-3141&title=The+Middle+East+Journal&stitle=Middle+East+J&atitle=Empire+and+nationhood+(Book+Review)&volume=53&issue=1&spage=138&epage=140&date=1999&ssn=winter—There was an error with the Factiva server when I tried to print this review before class but I had read it with the paper.
Diplomatic History v. 23 no. 3 (Summ 1999). Hoffman, Elizabeth Cobbs, reviewer. http://www.blackwellsynergy.com/openurl?genre=article&issn=0145-2096&date=1999&volume=23&issue=3&spage=559

Siemens Performance on Renewable Energy Market

Guest post by Maria Kruk, an author for Patentsbase.com

Siemens is one of the companies, which are focused on the innovative fields, as well as on markets with a good potential for expanding. These features are essential for renewable energy industries. In this context, Siemens finds it as an attractive market to invest money and technologies. Production of renewable energy and electricity became one more industry the company works in, along with electronics, IT technologies, medicine and urban infrastructure. Siemens is interested in specific branches of renewable energy sector, related research and innovations, which, by the way, receive nearly 4 billion dollars annually. Energy-saving technologies are of big priority, being the company’s goal all over the world.

Siemens Wind Power is the most advanced alternative energy branch of the company. About 7000 wind power generators are operated globally with total capacity of 6000 MW. The statistics features that such energy production can provide for 7 million households and prevent 8 million tons of carbon dioxide emissions annually. Especially, Siemens is focused on European countries, putting its projects into operation in Denmark, Germany, Northern Ireland, etc. Much of attention was paid to company’s innovative project, executed in collaboration with Hydreo, – floating wind power stations that can alter their location in order to get matching air flows. In addition, Siemens is engaged in construction of such wind farms as Teesside (UK), Cape Wind and Block Island (USA), Meerwind Sud/Ost (Germany), Horns Rev II (Denmark) and may others.

Hydro power production is one more industry Siemens is interested in. To provide some details, construction of hydro power stations is more expensive, but energy prime cost is lower. Therefore, energy demand outranges company’s expenses on hydro power projects. Since late 1970s hydroelectric power has become one of the investment items of the company. To be more précised, Siemens AG started to supply generators to the biggest hydro power station in the world – Itapúa, on Brazilian-Paraguayan border. To date, Siemens deals with technological developments for small hydropower plants up to 30 MW, as well as with reconstruction of existing power plants. In fact, in recent years Russian rivers alerted an attention of company’s executives. Depending on the power plant, Siemens offers to equip the turbine with adjustable or fixed blades of all currently available designs. Technologies introduced by the company ensure a high safety margin of small hydroelectric power stations and low operating costs.

Naturally, solar power is a crucial part on renewable energy market, but not for Siemens as once could guess. The key thing is that solar power was much of company’s priority during decades, until the 2012, when Siemens refused to succeed on the solar power market. In particular, the company refused to manufacture solar panels m and to convert solar energy into electricity, mainly because of price pressure on the market. Since then wind and hydro power remain primary renewable energy targets of Siemens, which are promised to provide 30 per cent of energy worldwide by 2030.

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