Make your Home Green

Hot Water Love

Among other things, hot water is often left unappreciated. You use the shower to get hot water and use it until it isn’t hot anymore. Then, you remain clueless on what to do. Instinctively, you call the plumber to fix it only to find out that it is time to replace the hot Water Heater.

Though plenty will immediately buy the standard conventional storage tank type heater, you may want to think about buying the latest tankless Water Heaters called instantaneous or demand water heater. But before anything else, consult with your plumber what type of water heater is best for you.

Advantages:

Power Savings. While a conventional heater with a storage tank heats water continuously (24 hours a day, 7 days a week) to maintain a certain temperature, a Tankless Water Heater only heats water when needed (without storage), thus resulting in substantial Energy Savings.

Steady supply of warm water. Tankless Water Heaters have an electric or gas heating mechanism activated by the water flow, which, once activated, provide a continuous supply of hot water.

Operational Cost Savings. It is very cost effective since using an electric tankless water heater cost 10 to 20 percent less per year while gas tankless models are cheaper by 20 to 40 percent per year.

Higher “life expectancy.” Tankless water heaters can tolerate hard water minerals and sediments than tank type heaters. Thus, they are less subject to corrosion. Accordingly, its life expectancy increase to 20 years than the usual tank model of 10 to 15 years.

More compressed. Tankless water heaters differ mainly in size because it is more compact than the tank water heaters.

Expenses:

The flow rate is restricted. Even if tankless water heaters provide infinite hot water, it will still depend upon the capacity of the heater with regards to the maximum flow rate at a desired temperature. Regardless whether gas or electric models are used, it still could not provide adequate hot water when multiple use is common.

Up front costs are high. Storage tank counterparts are a lot cheaper than the gas and electric tankless units.

Longer wait time. Since the tankless heater does not begin to heat water until the tap is turned on, it takes longer for the flow to begin than with a storage tank type heater. As a result, some water may be wasted while the user is waiting for it to heat up.
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Direct absorption solar thermal collectors utilizing liquid-nanoparticle suspensions. $49.99 As energy consumption continues to rise while conventional energy supplies become ever more depleted there is an increasing demand for renewable energy technologies, especially solar energy in the resource rich southwestern United States. In the 1970s, researchers proposed utilizing particle suspensions in liquids to enhance the solar absorption. More recently, nanoparticle-liquid suspensions have been proposed as a means to enhance solar collector efficiency through direct absorption of the incoming solar energy. For direct absorption systems, the base fluid plays an important role in the absorption of the effective medium therefore a method for experimentally determining the extinction coefficient of four fluids commonly used in solar thermal energy applications was developed. These fluids do not absorb solar energy well and the use of nanoparticle enhancement is necessary. Through the use of a micro-solar collector, the efficiency improvement predicted by earlier models was tested for varying nanoparticle materials, volume fractions and particle shapes. Earlier studies as well as the current work show that the size and shape of the nanoparticles as well as the scattering mode all impact the amount of energy absorbed and emitted by the nanofluid. In order to optimize the efficiency of a direct absorption solar system the optimum nanoparticle-liquid combination needs to be developed. The optimum nanofluid for a direct absorption solar thermal collector is investigated numerically through the variation of particle size, collector geometry, and scattering mode. With a demonstrated efficiency improvement due to a direct absorption solar collector utilizing nanofluids, a comparative analysis was performed comparing the environmental and economic impacts for domestic hot water systems. Results show that for current nanoparticle cost and a 3 percent improvement in efficiency the nanofluid-based solar collector at the end of its life has the same economic savings as a

Direct absorption solar thermal collectors utilizing liquid-nanoparticle suspensions. $49.99 As energy consumption continues to rise while conventional energy supplies become ever more depleted there is an increasing demand for renewable energy technologies, especially solar energy in the resource rich southwestern United States. In the 1970s, researchers proposed utilizing particle suspensions in liquids to enhance the solar absorption. More recently, nanoparticle-liquid suspensions have been proposed as a means to enhance solar collector efficiency through direct absorption of the incoming solar energy. For direct absorption systems, the base fluid plays an important role in the absorption of the effective medium therefore a method for experimentally determining the extinction coefficient of four fluids commonly used in solar thermal energy applications was developed. These fluids do not absorb solar energy well and the use of nanoparticle enhancement is necessary. Through the use of a micro-solar collector, the efficiency improvement predicted by earlier models was tested for varying nanoparticle materials, volume fractions and particle shapes. Earlier studies as well as the current work show that the size and shape of the nanoparticles as well as the scattering mode all impact the amount of energy absorbed and emitted by the nanofluid. In order to optimize the efficiency of a direct absorption solar system the optimum nanoparticle-liquid combination needs to be developed. The optimum nanofluid for a direct absorption solar thermal collector is investigated numerically through the variation of particle size, collector geometry, and scattering mode. With a demonstrated efficiency improvement due to a direct absorption solar collector utilizing nanofluids, a comparative analysis was performed comparing the environmental and economic impacts for domestic hot water systems. Results show that for current nanoparticle cost and a 3 percent improvement in efficiency the nanofluid-based solar collector at the end of its life has the same economic savings as a

Fog cooling, wet compression and droplet dynamics in gas turbine compressors. $49.99 During hot days, gas turbine power output deteriorates significantly. Among various means to augment gas turbine output, inlet air fog cooling is considered as the simplest and most cost-effective method. During fog cooling, water is atomized to micro-scaled droplets and introduced into the inlet airflow. In addition to cooling the inlet air, overspray can further enhance output power by intercooling the compressor. However, there are concerns that the water droplets might damage the compressor blades and increased mass might cause potential compressor operation instability due to reduced safety margin. Furthermore, the two-phase flow thermodynamics during wet compression in a rotating system has not been fully established, so continued research and development in wet compression theory and prediction model are required.;The objective of this research is to improve existing wet compression theory and associated models to accurately predict the compressor and the entire gas turbine system performance for the application of gas turbine inlet fog cooling. The following achievements have been accomplished: (a) At the system level, a global gas turbine inlet fog cooling theory and algorithm have been developed and a system performance code, FogGT, has been written according to the developed theory. (b) At the component level, a stage-stacking wet compression theory in the compressor has been developed with known airfoil configurations. (c) Both equilibrium and non-equilibrium water droplet thermal-fluid dynamic models have been developed including droplet drag forces, evaporation rate, breakup and coalescence. A liquid erosion model has also been developed and incorporated. (d) Model for using computational fluid dynamics (CFD) code has been developed to simulate multiphase wet compression in the rotating compressor stage.;In addition, with the continued increase in volatility of natural gas prices as well as concerns regarding national energy security, this research

Fog cooling, wet compression and droplet dynamics in gas turbine compressors. $49.99 During hot days, gas turbine power output deteriorates significantly. Among various means to augment gas turbine output, inlet air fog cooling is considered as the simplest and most cost-effective method. During fog cooling, water is atomized to micro-scaled droplets and introduced into the inlet airflow. In addition to cooling the inlet air, overspray can further enhance output power by intercooling the compressor. However, there are concerns that the water droplets might damage the compressor blades and increased mass might cause potential compressor operation instability due to reduced safety margin. Furthermore, the two-phase flow thermodynamics during wet compression in a rotating system has not been fully established, so continued research and development in wet compression theory and prediction model are required.;The objective of this research is to improve existing wet compression theory and associated models to accurately predict the compressor and the entire gas turbine system performance for the application of gas turbine inlet fog cooling. The following achievements have been accomplished: (a) At the system level, a global gas turbine inlet fog cooling theory and algorithm have been developed and a system performance code, FogGT, has been written according to the developed theory. (b) At the component level, a stage-stacking wet compression theory in the compressor has been developed with known airfoil configurations. (c) Both equilibrium and non-equilibrium water droplet thermal-fluid dynamic models have been developed including droplet drag forces, evaporation rate, breakup and coalescence. A liquid erosion model has also been developed and incorporated. (d) Model for using computational fluid dynamics (CFD) code has been developed to simulate multiphase wet compression in the rotating compressor stage.;In addition, with the continued increase in volatility of natural gas prices as well as concerns regarding national energy security, this research

How to Solar Power Your Home: Everything You Need to Know Explained Simply $15.25 Now more than ever, the question of economic and environmentally friendly energy sources has become a hot topic in almost every American home. With that in mind, more and more people are turning to alternatives such as solar power as a means of saving money and reducing their imprint on the environment. This nearly carbon neutral method comes with hefty tax rebates from the federal government and in states like California and New Jersey massive rebates from the state. More states are considering similar rebates and with a 3 to 8 year energy savings possible according to a recent report by the New York Times, it is an ideal solution for anyone looking to save money in the long term and help the planet immediately.This book will guide anyone interested in the process of installing and utilizing solar power for their home in the process of searching for, buying, or building their own solar power system. Learn how solar power and other alternative energy sources can help to save the world regardless of the cost and how you can start surveying your own energy use and efficiency. Learn how you can start making basic adjustments to become more efficient and how solar power can help you before you start any major projects. Learn what solar power requires, from cost and equipment to maintenance and preparation in certain times of the year. Learn how solar power works and how to start evaluating the potential of it for your building needs. Take the cost of installing solar power and learn how long it will take to make money back on your investment, including information on federal and state rebates that might affect you.Multiple individuals who have successfully installed solar power in their homes have been interviewed and their experiences included in this guide to help you learn what others go through and how they came out. Learn how the installation process works and how it can be done in your landscape, in small projects, for heating and purifying water,

Ion sequestration particles for naval anticorrosion coatings. $49.99 Corrosion is the electrochemical process of a metal returning to its lower energy state, the metal oxide. The cost of corrosion is difficult to estimate. One area particularly susceptible to corrosion problems with high maintenance costs is that of the 20,000 tanks existent in the US Naval Fleet. The Navy is sponsoring the development of novel coatings and additives that can be used to decrease the rising corrosion related costs.;This dissertation describes in detail the synthesis of Ion Sequestration Particles (ISP) that when added to the standard MIL-DTL-24441 or potentially another coating system act to enhance the anticorrosion properties of the coating. A solid ion sequestration core material (SISCM) is first produced. The core is then encapsulated in a second stage forming a shell that protects the SISCM sufficiently from the harmful interactions with uncured epoxy based coatings.;ISPs were designed to sequester harmful ions while releasing passivating ions in their place. The passivating ions then migrate to defect sites at the coating interface where they act to inhibit corrosion. The anticorrosion performance of ISPs in epoxy coatings has been demonstrated by both 500 hrs of hot deionized water immersion and 1000 hrs of salt spray exposure (ASTM B117). The best improvements in coating performance are attained with ISP content ranging from 5-10 wt % loading in a coating.;ISPs were designed to limit the transport of harmful ions through the coating. However this work has determined high diffusion coefficients for ions (CI- and PO42-) through the epoxy matrix. Without ISPs, the diffusion coefficient through the MIL-DTL-24441 coating was determined for phosphate to be 1.16×10-7 cm2/s and for chloride to be in the range of 2.7×10-9 to 5.6×10-10 cm2/s. The addition of 5 wt % ISPs to the coating had the effect of decreasing the diffusion coefficient by an average of 25.5%. These results yield the conclusion that the enhanced anticorrosion properties of coatings

Ion sequestration particles for naval anticorrosion coatings. $49.99 Corrosion is the electrochemical process of a metal returning to its lower energy state, the metal oxide. The cost of corrosion is difficult to estimate. One area particularly susceptible to corrosion problems with high maintenance costs is that of the 20,000 tanks existent in the US Naval Fleet. The Navy is sponsoring the development of novel coatings and additives that can be used to decrease the rising corrosion related costs.;This dissertation describes in detail the synthesis of Ion Sequestration Particles (ISP) that when added to the standard MIL-DTL-24441 or potentially another coating system act to enhance the anticorrosion properties of the coating. A solid ion sequestration core material (SISCM) is first produced. The core is then encapsulated in a second stage forming a shell that protects the SISCM sufficiently from the harmful interactions with uncured epoxy based coatings.;ISPs were designed to sequester harmful ions while releasing passivating ions in their place. The passivating ions then migrate to defect sites at the coating interface where they act to inhibit corrosion. The anticorrosion performance of ISPs in epoxy coatings has been demonstrated by both 500 hrs of hot deionized water immersion and 1000 hrs of salt spray exposure (ASTM B117). The best improvements in coating performance are attained with ISP content ranging from 5-10 wt % loading in a coating.;ISPs were designed to limit the transport of harmful ions through the coating. However this work has determined high diffusion coefficients for ions (CI- and PO42-) through the epoxy matrix. Without ISPs, the diffusion coefficient through the MIL-DTL-24441 coating was determined for phosphate to be 1.16×10-7 cm2/s and for chloride to be in the range of 2.7×10-9 to 5.6×10-10 cm2/s. The addition of 5 wt % ISPs to the coating had the effect of decreasing the diffusion coefficient by an average of 25.5%. These results yield the conclusion that the enhanced anticorrosion properties of coatings

Monopolies And The People $22.81 Charles Whiting Baker (1865-1941) was an American author and associate editor of The Engineering News. His works include: Monopolies and the People (1889), “Economic” Railway System for Freight and Passenger Transportation on Lines of Light Traffic (1904), The Necessity for State or Federal Regulation of Water Power Development (1901), Low Cost Transport for Lines of Light Traffic: The “Economic” Monorail System, Combining the Advantages of a Permanent Automobile Roadway and a Light Traffic Railway (1915), How to Improve the Hot-Air Furnace (1918) and What is the Future of Inland Water Transportation (1920).

Monopolies And The People $14.18 Charles Whiting Baker (1865-1941) was an American author and associate editor of The Engineering News. His works include: Monopolies and the People (1889), “Economic” Railway System for Freight and Passenger Transportation on Lines of Light Traffic (1904), The Necessity for State or Federal Regulation of Water Power Development (1901), Low Cost Transport for Lines of Light Traffic: The “Economic” Monorail System, Combining the Advantages of a Permanent Automobile Roadway and a Light Traffic Railway (1915), How to Improve the Hot-Air Furnace (1918) and What is the Future of Inland Water Transportation (1920).

Monopolies And The People $22.81 Charles Whiting Baker (1865-1941) was an American author and associate editor of The Engineering News. His works include: Monopolies and the People (1889), “Economic” Railway System for Freight and Passenger Transportation on Lines of Light Traffic (1904), The Necessity for State or Federal Regulation of Water Power Development (1901), Low Cost Transport for Lines of Light Traffic: The “Economic” Monorail System, Combining the Advantages of a Permanent Automobile Roadway and a Light Traffic Railway (1915), How to Improve the Hot-Air Furnace (1918) and What is the Future of Inland Water Transportation (1920).

Monopolies And The People $13.94 Charles Whiting Baker (1865-1941) was an American author and associate editor of The Engineering News. His works include: Monopolies and the People (1889), “Economic” Railway System for Freight and Passenger Transportation on Lines of Light Traffic (1904), The Necessity for State or Federal Regulation of Water Power Development (1901), Low Cost Transport for Lines of Light Traffic: The “Economic” Monorail System, Combining the Advantages of a Permanent Automobile Roadway and a Light Traffic Railway (1915), How to Improve the Hot-Air Furnace (1918) and What is the Future of Inland Water Transportation (1920).

Monopolies And The People $18.09 Charles Whiting Baker (1865-1941) was an American author and associate editor of The Engineering News. His works include: Monopolies and the People (1889), “Economic” Railway System for Freight and Passenger Transportation on Lines of Light Traffic (1904), The Necessity for State or Federal Regulation of Water Power Development (1901), Low Cost Transport for Lines of Light Traffic: The “Economic” Monorail System, Combining the Advantages of a Permanent Automobile Roadway and a Light Traffic Railway (1915), How to Improve the Hot-Air Furnace (1918) and What is the Future of Inland Water Transportation (1920).