
Blogroll
2009年10月25日 星期日
2009年10月20日 星期二
IdeaPaint: Turn Your Entire Office Into a Whiteboard 把辦公室變成白板
2009年1月3日 星期六
2008年12月31日 星期三
2008年12月30日 星期二
Don't Let Your Money and Hot Water Go Down the Drain
Do you look at your retirement savings statements and feel like you're sending your money down the drain? Do you deposit more money each paycheck into your retirement account, but find the balance goes down, not up?
Pssst, want to invest in a "sure thing?" No, this isn't a scam. It's a device that has no moving parts to break down, but is certain to save you energy, and thus save you money by lowering your utility bills. When we all take showers and baths, wash the dishes or clothes, and wash our hands, we send heated water literally down the drain. That typically represents 80%–90% of the energy used to heat water in a home. Drain-water (or greywater) heat recovery systems capture some of this energy to preheat cold water entering the water heater or going to other water fixtures.
How It Works
In its simplest form, a drain-water heat recovery (DHR) unit is simply a copper heat exchanger that replaces a vertical section of a main waste drain. As warm water flows down the waste drain, incoming cold water flows through a spiral copper tube wrapped tightly around the copper section of the waste drain. This preheats the incoming cold water that goes to the water heater or a fixture, such as a shower. Some units also contain a storage tank.
Drain water heat recovery technology works well with all types of water heaters, including demand and solar water heaters. They generally have the ability to store recovered heat for later use. You'll need a unit with storage capacity for use with a dishwasher or clothes washer.
Most DHR systems are installed in the main waste drain of the house by an experienced plumber. Be forewarned, however, that many plumbers are not familiar with DHR installation. Most systems use common equipment and tools, and installation is relatively simple, so your local plumber should be able to figure it out.
By preheating cold water, drain-water heat recovery systems help increase water heating capacity. This increased capacity really helps if you have an undersized water heater. You can also lower your water heating temperature without affecting the capacity.
There are several residential drainwater heat exchangers commercially available.
According to the National Association of Home Builders Research Center's Toolbase Services, DHR systems typically cost $300 to $500 plus installation—contact the manufacturers for their current prices. I never said they were cheap, did I? Consider it as an investment, one that's sure to stop throwing money and hot water down the drain.
John Lippert is an employee of Energy Enterprise Solutions, a contractor for EERE. He assists with technical reviews of content on the Consumer Guide Web site.
Source: Department of Energy http://eere.typepad.com/energysavers/
2008年12月11日 星期四
IBM, Harvard tap compute cloud for solar research
Harvard University and IBM have launched a project to harness the computing muscle of thousands of computers to discover cheap solar energy materials.
The initiative, announced Monday, is part of the IBM-sponsored World Community Grid, which seeks to speed up research on humanitarian challenges with a grid of connected computers.
The idea is that people and organizations donate computing time to these efforts. A grid server doles out tasks to disparate machines to speed up computational jobs.
IBM also said that it will test running the grid software on an internal compute cloud to tap idle time.
Existing World Community Grid projects are aimed at developing a more nutritious rice as well as conducting cancer and AIDS research. The Harvard project wants to test the chemical properties of a number of organic materials with the aim of determining which are most promising for use as solar cells.
An example of organic solar cells. Konarka makes the plastic cells in a roll-to-roll printing process. Because they are flexible and relatively cheap to make, they can be used in tents, solar chargers, or even clothing.
(Credit: Martin LaMonica/CNET Networks)The advantage of organic solar cells is that they are much cheaper to manufacture than traditional silicon and are flexible and lightweight. Some kinds can make electricity with a broader spectrum of light, including indoor light.
On the other hand, these cells aren't as efficient at converting light to electricity and they degrade more quickly.
By parsing out the the computing research across several computers, Harvard researcher Alan Aspuru-Guzik said that the project can be completed in 2 years. Using a traditional supercomputer cluster to run the analysis would take 22 years.
"It would take us about 100 days of computational time to screen each of the thousands of compounds for electronic properties without the power of World Community Grid," he said in a statement.
The World Community Grid is tailored to public and nonprofit organizations but IBM has a number of projects in solar and the energy business.
Its commercial research group has three solar-related programs, including the development of thin-film solar cells from CIGS (a combination of copper, indium, gallium, and selenide) and technology to manufacture solar concentrators.
IBM is also very active in developing smart grid software and services for electric utilities.
ZDNET新聞專區:Martin LaMonica2008/12/09 13:03:02哈佛大學與IBM公司已推出一項計畫,將運用由成千上萬台電腦所集合的運算威力,設法找到廉價的有機太陽能電池材料。
這項計畫在周一,是IBM贊助的「世界社群網格」(World Community Grid)計畫的一部分。「世界社群網格」的宗旨,是借助網網相連的電腦,加速研究人類所面臨的諸多挑戰。
構想是,民眾與機構捐出電腦運算時間來共襄盛舉。網格伺服器將把待做的任務分配給個別不同的機器,以加速運算工作。
IBM也表示,將在內部的運算雲端(compute cloud)上測試執行這個網格軟體,以善用電腦閒置時間。
現行的世界社群網格計畫目標包括發展更有營養的稻米,以及協助進行抗癌症、抗愛滋病的研究。哈佛的計畫是測試多種有機物質的化學屬性,希望能找到最適合用來製作太陽能電池的材質。
有機太陽能電池的優點在於,製造成本比傳統的矽低廉,而且更具彈性,重量也比較輕。其中一些可產生光譜寬廣的電光,包括室內光線。但另一方面,這些電池把光轉換成電力的效率比較差,而且壞得(degrade)比較快。
哈佛大學研究員Alan Aspuru-Guzik指出,把運算研究分給多台電腦同時進行,可讓這項計畫在兩年內完成。若使用一部傳統超級電腦叢集來作分析,要費時22年才能完成。
他發布書面聲明說:「如果不借助世界社群網格的運算效能的話,我們大約需要100天的運算時間,逐一過濾數千種化成物的電子屬性。」
世界社群網格是投入公益的非營利組織,而IBM有多項計畫投入太陽能與能源營利事業。IBM的商業研究事業群已進行三項太陽能相關的計畫,包括開發CIGS(結合銅、銦、鎵、硒化物)的薄膜太陽能電池,以及用來製造太陽能集光器的技術。
IBM也積極開發供電力事業使用的智慧型網格軟體與服務。(唐慧文/譯)
2008年11月26日 星期三
節能減碳國際化 台灣Follow歐盟
〔自由報訊〕在全球共同關注之節能減碳及環保議題熱潮下,國際間環保標準規範日益複雜與嚴苛,於此,歐盟繼WEEE、RoHS指令後,於2007年公佈能源使用產品生態化設計指令(簡稱EuP)。台灣產業服務基金會因應此一趨勢,於2008年11月10日假台北福華國際文教會館舉行「EuP宣誓大典」,也象徵台灣跟進國際腳步、節能減碳目標更向前邁進一步。
因應國際趨勢 台灣產業服務基金會率眾提倡環保
有鑑於近年國際能源價格大幅上漲、全球暖化問題日趨嚴峻,節能減碳已成為全世界刻不容緩的共同使命與共識,為將國際永續發展理念在國內落實,並確保國家能源安全、環保永續、經濟發展及社會正義,行政院遂於今(97)年6月5日提出「永續能源政策綱領」,加速推動台灣邁向低碳社會經濟。台灣產業服務基金會(簡稱產基會)因應此一全球趨勢,遵從歐盟公佈之「能源使用產品生態化設計指令(簡稱EuP)」,亦同步配合針對產業面提出節能減碳具體措施,以確保我國產業競爭力、減緩產業供應鏈可能受到的相關衝擊。
EuP指令涵蓋範疇之產品相當廣泛,大部分為日常生活常見之產品,舉凡如:暖氣與熱水設備、電動馬達、家庭與服務業照明設備、家用電器、消費者電氣等耗電產品均納入指令管轄範圍。依此指令,台灣受影響產品外銷全球產值高達2,700億新台幣,其中以「個人電腦(桌上型、攜帶型)及電腦螢幕」以及「電視、數位電視盒」達最大宗,合計總產值達2/3以上,受影響最大;其次為馬達類及影像設備,約佔總產值1/4。
經濟部與各大產業公會攜手誓師 台灣與世界接軌
此次辦理「產業推動產品生態化設計宣誓典禮」,邀請EuP指令相關產品之公協會理事長及輸歐大廠共同號召廠商重視EuP議題,並期在攜手共同努力之下,協助產業掌握國際市場之綠色競爭優勢,也對全球關注的節能減碳趨勢貢獻績效。宣誓典禮上,開場即呼應主題氛圍邀請到源於歐洲的踢踏舞團表演,一連2首舞曲的表演,氣勢磅礡,讓宣誓活動的所有與會嘉賓與EuP作一高度聯結;宣示開始時,各類公會理事長應邀上台與經濟部次長共同啟動機關,象徵政府與民間一同朝向節能減碳的目標攜手努力。
文章來源:http://www.libertytimes.com.tw/2008/new/nov/26/today-life14.htm
2008年10月6日 星期一
塑膠濃湯-海洋垃圾新名詞
2008年9月8日 星期一
一封來自學姊的信
早安!阿彌陀佛
約定中秋不夜烤,別讓月亮笑我們毒喔!
別讓嫦娥笑我們毒,野鳥學 會發起"中秋不烤肉"過節方式 。
亞洲台灣:別讓嫦娥笑我們毒,野鳥學會發起"中秋不烤肉"過節方式。
烤肉不只對環境不環保,對身體也一樣,身為地球公民,就從中秋不烤肉開始,減少對環境的污染吧……
中華民國野鳥學會發起「中秋節不烤肉」的過節方式,活動一提出,就有不少人在網路上呼應。
台灣現在的新觀念是:不烤肉、節能減碳不製造汙染,愛台灣更愛地球!
<每逢佳節汙染多 數字會說話>
何時開始中秋節成了全民烤肉節?
這個毫無典故來由的活動,卻讓全體國人飽受汙染之苦:
●超過6382.5噸的二氧化碳
1公斤木炭會排放3.7公斤二氧化碳,以一家四口烤肉2小時,全台2,300萬人,若有3成民眾烤肉來算,將會產生6,382.5噸的二氧化碳。
●佳節變成空氣災難日
●烤肉形同慢性自殺。
九成五來自印尼、馬來西亞和中國,價格低廉但潛藏不少劣質木炭。
木炭燃燒不完全除了會產生一氧化碳,還有多環芳香烴〈PAHs〉,這種物質已經被歐盟和美日等國證實為致癌物質,烤肉形同慢性自殺。
●87個大安森林公園,因為燒烤再見了
生產一公斤木炭要消耗6到10公斤木材。以大安森林公園約26公頃為例,保守估算,台灣每年因燒烤需求,所砍伐的林木面積高達87個大安森林公園。
<營養師忠告>拒絕烤肉 體內也環保
建議不如以滷味、涼拌小菜,健康點心和茶品取代之,賞月兼顧體內環保。
<替代活動>不烤肉 也能很溫馨
小時候的中秋節沒有烤肉這件事,卻是滿滿的溫暖回憶。
家有學子的,大人總愛吟詩應景或者考語詞接龍,粗茶淡餅,怡然自得。
上山下海的賞月時,順手淨山淨灘。「別讓嫦娥笑我們毒!」
2008年7月8日 星期二
Be A Vegetarian, The Best Way for Cost Saving
The day before yesterday, I told the rice ball clerk that I don’t want to use the plastic bag. Therefore, she took off the plastic bag and put the rice ball into my bowl. At first, I felt so happy, after I thought where the plastic bag went, could really reduce the garbage quantity. Therefore, I decided ask her, can I use this way to reduce the garbage quantity?
No!!
I felt sad… why?? How??
She answered:
Because the customers thought this plastic bag was not pure, maybe this was used by many people.
If you didn’t feel comfortable and convenient, I could make the rice ball in your bowl.
Ha! Good idea. Thanks very much, because of you the world will be better.
Now, I spend 25 NT for a big and vegetable rice ball, original price is 35. And lunch and dinner, if I don’t change the restaurant, I just take 30 NT for each meal. You look. Eat more vegetable and eat more environmental, you can save more money.
Come On!! Don’t eat meat any more.
START TO EAT VEGETABLE.
Resist the global warming.
2008年6月25日 星期三
Global Warming
Now the human produce and release much greenhouse gas for industry than the sum since thousands of years. Greenhouse gas causes the weather become more and more unstable, the temperature higher and higher, the disaster caused by wind and weather will stronger and stronger, etc. This unusual weather brings about many disasters such as food shortage, strong tornado, raise sea level and sink many islands, etc.
Face the global warming what can we do? Basically, we can reduce the C pollution, for example, we can turn off the electric equipments when we don’t use.
On food, we can eat more vegetable and less meat. The 40 percent of the grain are used on forage. Now anybody and news always report that we are in the trouble of food shortage, we should find new ways and techniques to produce more food. Why? We have to look for so difficult methods and techniques to break this predicament. The easiest and most useful method is that eat vegetable. When we eat 1kg of beef, the cattle eat 16kg of grain, cause the 35kg of land surface erosion, deplete 100,000 kg of water, and the methane from cattle can speed up the global warming, that is faster than carbon dioxide on 20 times.
So now we should make some change on life, or more disasters are waiting for us, if we don’t do any useful change.
Wikipedia http://en.wikipedia.org/wiki/Global_warming
Al Gore, An Inconvenient Truth http://www.climatecrisis.net/
2008年6月7日 星期六
2008年6月5日 星期四
省能大作戰
那我們究竟可做什麼來彌補呢?
其實我們只要隨手做好一下幾點就可以就地球囉!
節省用水、隨手關燈、食衣住行有節度。
隨手攜帶環保餐具。
2008年6月4日 星期三
人就是禍首
我們靠著聰明的頭腦,以及靈活的雙手,發明出各式各樣的工具。
然而,我們就像打開了潘多拉的盒子,從盒子中出現了各式各樣的東西,包含了疾病、災難...也包含希望...
那我們是不是保握最後一份希望,來弭平疾病、災難。既然,人類可以破獲大自然,可以造成這麼多疾病、災難,那勢必也能運用智慧拯救大自然。
願有多大,力就有多大。讓我們一起以最虔誠的心,來呵護大自然,守護世界的每一寸土地。
現在就讓我們,透過影片了解"為什麼人類是造成汙染的禍首"
2008年6月3日 星期二
太平洋的垃圾,你知多少?
隨手一丟的垃圾,經由世代的累積,讓原本清淨無瑕的海洋被垃圾一點一滴的破壞。
太平洋上的垃圾,經由潮流的帶動下,幾乎可以從夏威夷到日本。汙染甚廣。
聚英國獨立報報導,太平洋上的垃圾幾乎可以達到兩個美國本土大。
2008年5月7日 星期三
送給大地母親節禮物 慈大邀請師生一起吃素 少消費
全球糧倉面臨生產短缺問題,吃一公斤的肉必須消耗10公斤的穀類飼料;從食物的生產到送到消費者口中,如果能選擇在地或低里程數的運送過程,代表所耗的汽油愈低,產生的二氧化碳比較少;而不浪費物質不僅減少垃圾的產生,也是一種健康有效率的生活方式。慈青社利用中午時間推廣減碳333的活動,希望大家都能用行動來愛護我們的地球媽媽。
為了讓大家了解,為何要減碳,慈青社同學在學校各角落以裝置藝術的靜態展呈現環保生活化概念,隨時提醒大家要減碳過生活。同時也利用午餐時間,在同心圓餐廳前擺放素食相關書籍,讓同學更了解吃素的好處。
慈青社劉乃慈向同學介紹,砍伐熱帶雨林種植大豆等飼料作物,是為了養牛、養羊,根據統計一個吃肉的人可以養活20個吃素的人,現在全球還有很多地方鬧饑荒,而肉吃太多變成酸性體質,也容易致病,為了自己的健康,也為了保護地球,希望大家多多吃素。
慈大餐廳提供素食,許多同學是來到大學才開始嘗試吃素,鄭同學說,以前只知道吃素是不殺生,從慈青社的展覽和宣導中,才瞭解原來吃素也是一種環保。
20歲的青春歲月正值喜愛新奇事物,跟流行的階段,不過慈大這群年輕人,卻願意花時間告訴同學們,少消費多素食來愛護地球,慈青社同學說:「年輕都有很多說不完的夢想,但是,沒有地球就沒有夢想可言。」這也是他們在母親節前夕,送給地球媽媽的禮物。