Microwave Oven Experiment Page

Microwave Oven Experiment Page

Science Fair Projects - Integral

Science Fair Projects - Integral

Overall Heat Transfer Coefficient� - Heat Transfer - Engineers Edge

Overall Heat Transfer Coefficient� - Heat Transfer - Engineers Edge

Derivation of heat equation

Derivation of heat equation

Newton articulated some principles of heat flow through solids, but it was Fourier who created the correct systematic theory. Inside a solid there is no convective transfer of heat energy and little radiative transfer, so temperature changes only by conduction, as the energy we now recognize as molecular kinetic energy flows from hotter regions to cooler regions. The first basic principle of heat is:

1. the heat energy contained in a material is proportional to the temperature, the density of the material, and a physical characteristic of the material called the specific heat capacity. In mathematical terms,

Illico CQUOI bread basket - kitchen design

Illico CQUOI bread basket - kitchen design

EPS Molders

EPS Moldersthermocol info

The History of Plastics

The History of Plastics a good article

compareindia-your unbiased guide to buying

http://www.tarladalal.com/default.asp

LEARN TO COOK EFFICIENTLY WITH MICROWAVE

LEARN TO COOK EFFICIENTLY WITH MICROWAVEat compareindia.com

Polymer Properties database

m-base is a very good resource of polymers. It has the database of most of the polymers ,their manufacturers, properties of various grades, etc.

Injection Plastic Molding Design and Data - Engineers Edge

Injection Plastic Molding Design and Data - Engineers Edge

Alternative Survival Information - Food Storage

Alternative Survival Information - Food Storage

The Food Timeline--Culinary History Timeline

The Food Timeline--Culinary History Timeline

Technology, Invention, and Innovation collections

history of "Thermalware jars"
:
The company diversified in 1917 and began producing insulated cooking dishes, known as Aladdin Thermalware jars, for the U.S. military. These jars had an aluminum or steel jacket wrapped around a heavy glass receptacle. The space between was filled with cork. The introduction of the thermalware began the company’s venture into heat and cold retaining receptacles.

Market segment

Market segment
Market Segmentation is the process of grouping a market into smaller subgroups. This is not something that is arbitrarily imposed on society : it is derived from the recognition that the total market is often made up of submarkets (called segments). These segments are homogeneous within (ie.: people in the segment are similar to each other in their attitudes about certain variables). Because of this intra-group similarity, they are likely to respond somewhat similarly to a given marketing strategy. That is, they are likely to have similar feelings about a marketing mix comprised of a given product, sold at a given price, distributed in a certain way, and promoted in a certain way.

market segmentation - bases of segmentation

Marketing - market segmentation - bases of segmentation

PRODUCT DEVELOPMENT FORUM

PRODUCT DEVELOPMENT FORUM links to product design n development
a very good resource.

Business Research On The Internet

Business Research On The Internet
The millions of sites and resources on the Internet can seem overwhelming. Usenet newsgroups, FTP sites and gopher archives, as well as lists of white and yellow pages of email addresses add to the confusion! Luckily, there are a number of tools to help you find what you're looking for online. Learning to use the search tools effectively pays dividends in time saved and helpful business information gathered.

ACHIEVING DESIGN TO COST OBJECTIVES

ACHIEVING DESIGN TO COST OBJECTIVESA competitive product must address factors such as cost, performance, aesthetics, schedule or time-to-market, and quality. The importance of these factors will vary from product to product and market to market. And , over time, customers or users of a product will demand more and more, e.g., more performance at less cost.

Cost will become a more important factor in the acquisition of a product in two situations. First, as the technology or aesthetics of a product matures or stabilizes and the competitive playing field levels, competition is increasingly based on cost or price. Second, a customer's internal economics or financial resource limitations may shift the acquisition decision toward affordability as a more dominant factor. In either case, a successful product supplier must focus more attention on managing product cost

rotho - mehr als Kunststoff

rotho - mehr als Kunststoff
rotho is a swiss plastic manufacturer with high quality of products.

SAES Getters - VIP-Insulated Bottles

SAES Getters - VIP-Insulated BottlesWhen weight is an issue in maintaining and transporting a cold drink, for sports and leisure for example, VIP-insulated bottles replace vacuum bottles. Often plastic made, thermal bottles include SAES Getters VIP, the saesINSULA, for unmatched thermal performance.

SAES Getters - Water Heaters

SAES Getters - Water HeatersThe best way to increase energy efficiency for electrical storage water heaters is through better insulation to decrease the stand-by heat loss. However, increasing the thickness of the walls is generally not a real option, since this creates problems in replacing old units and it increases the price of the appliance.

microtherm

microtherm heat transfer presentation.

IPAC @ LLNL - Technology Profile: Thermal Properties of Aerogels

IPAC @ LLNL - Technology Profile: Thermal Properties of Aerogels: "Silica aerogels at 300 K and 1 atm have measured conductivities as low as 0.020 W/m�K (an R per inch value of about 7).
Organic aerogels have thermal conductivities of 0.012 W/m�K (an R per inch value of 12).
Carbon particle-loaded (opacified) silica aerogels have thermal conductivities of 0.013 W/m�K (an R per inch value of 11). "

Silica Aeogels - Thermal Properties

Silica Aeogels - Thermal Properties: "After preparing the first silica aerogels, Kistler proceeded to characterize them as thoroughly as possible. One of the extraordinary properties that he discovered was their very low thermal conductivity. Kistler also found that the thermal conductivity decreased even further under vacuum. However, in the 1930's thermal insulation was a low priority and applications of aerogels in insulation systems was not pursued. The renaissance of aerogel technology around 1980 coincided with an increased concern for energy efficiency and the environmental effects of chlorofluorocarbons (CFC's). It was then readily apparent that silica aerogels were an attractive alternative to traditional insulation due to their high insulating value and environment-friendly production methods. Unfortunately, the production costs of the material were prohibitive to cost-sensitive industries such as housing. A significant research effort was undertaken, and is continuing, at several institutions worldwide (including Berkeley Lab) to circumvent this problem by increasing the insulative performance and lowering the production costs of silica aerogels."

NanoPore Incorporated

NanoPore Incorporated

Because of its unique pore structure, NanoPore™ Thermal Insulation can provide thermal performance unequalled by conventional insulation materials. In the form of a vacuum insulation panel (VIP), NanoPore™ Thermal Insulation can have thermal resistance values as high as R40/inch - 7-8x greater than conventional foam insulation materials. A comparison of the thermal performance of NanoPore™ Thermal Insulation versus conventional insulation materials is shown below.

Foam and Foam Board Insulation

Foam and Foam Board Insulation: "Synthetic foam insulation products are commonly used in buildings. Foam insulation has a relatively high R-value (resistance to heat flow) compared to other types of insulation.
Many variables affect the final R-value of foam insulation: the initial density of the foam; the blowing gas used (CFC, HCFC, CO2, air, or a number of other gases); how the panels are handled (dents and chips in the panel adversely effect the R-value); the type of facing (if any) used, and the conditions under which the panels are installed.
There are several methods of installing foam insulation. You can spray it as a chemical mixture from a small aerosol container, or apply it in bulk from a pressure sprayer. As the chemical mixture cures, it fills and seals odd-shaped spaces and wall stud cavities. You can also apply the foam as a liquid that flows over obstructions before it expands and cures. Finally, you can pour solidified plastic foam as loose beads into concrete blocks or install it as rigid panels that can be cut to size. "

what is slow cooking?

Ask Jeeves Answer - what is slow cooking?: "There are several advantages to using a slow cooker, or crock pot. It can reduce the time you spend in the kitchen by almost half. A slow cooker takes less electricity than an oven, and produces less heat during the warmer months. It also improves the variety and flavor of foods. Since this appliance cooks foods slowly at a low temperature, it tenderizes the less expensive and leaner cuts of meat and reduces shrinkage.
A slow cooker is designed for long hours of unattended cooking so don�t remove the lid until it�s time to check food doneness, unless you need to stir during cooking. This is because heat builds up slowly inside the cooker, and every time you uncover the pot it loses enough heat to slow the cooking process by 30 minutes or more.
It usually takes several hours for food to reach 125 degrees Fahrenheit, the temperature at which heat begins to destroy any bacteria present. Some bacteria can survive at temperatures up to 140 degrees F. A slow cooker should heat to 125 degrees F within three hours and to 140 degrees F within four hours, according to food safe"

Food Storage featuring Tupperware

niftykitchenFood Storage featuring Tupperware

Redhotcurry.com - Essential Utensils for an Indian Kitchen

Redhotcurry.com - Essential Utensils for an Indian KitchenWhat constitutes the essential utensils needed in an Indian Kitchen? Well this depends - do you wish to achieve rusticity, or do you want to cook a great meal in the shortest possible time? We thought so...... here's our list. Click on any image on the left to view a lager picture.

Roti Maker,Chapati Maker,Roti Maker Manufacturers,Roti Chapati Maker,Chapati Making Machines,Roti Making Machines

Roti Maker,Chapati Maker,Roti Maker Manufacturers,Roti Chapati Maker,Chapati Making Machines,Roti Making Machines

Heat Properties

Heat Properties
Thermal conductivity is the measurement of the speed at which heat travels through a material through conduction. In the United States thermal conductivity (also referred to as the "k" value) is commonly expressed in terms of the number of BTUs of heat which will travel through one sq. foot of material which is one inch thick when there is one degree F temperature difference across the material (ie. Delta T). This expression is often stated as btu/in/hr/sq.ft/oF. The lower the "k" value the better the thermal insulation. The term "R" value is frequently used to describe the performance of insulation materials. The "R" value is simply the reciprocal of the "k" value. Therefore, the higher the "R" value, the better the insulation quality.

For example: Polyurethane foam insulation board is commonly rated at a thermal conductivity of .17 (point one seven). This means that a 1" piece of foam 12" square would permit .17 BTUs of heat to move through it in one hour if there were a temperature difference of 10 F on either side. Were the temperature difference across the material to be increased to 10 degrees, then the 1.7 BTUs would move through it in the same hour.

Vacuum Insulation Panels - General Information

Vacuum Insulation Panels - General InformationIt has been know for a long time that the insulation value of some materials can be dramatically increased by maintaining them in an evacuated environment. How much vacuum is required and how much improvement is gained depends on the material and the level of vacuum.

Vacuum Insulation Panel (VIP)

The Vacuum Insulation Panel (VIP) is a technologically advanced product that combines high R-value in a relatively thin panel. The vacuum insulated panel consists of a special core panel enclosed in an air-tight envelope, to which a vacuum is applied. This product provides an insulative value of three to seven times that of equivalent thickness of other insulation materials, such as rigid foam boards, foam beads, or fiber blankets. Panels can be fabricated in virtually any size, making them ideal for inclusion within other building products. Currently, it is used in commercial and industrial refrigeration applications, and in specialized container systems.

Thermos� Products

Thermos� ProductsFor 100 years, Thermos® brand insulated products have been keeping food and beverages hotter, cooler and fresher. Today this commitment continues with an expanding range of innovative, fashionable products that preserve flavor and freshness. When it says Thermos, you know what to expect – we just deliver it in ways you’d never expect.

Types of Insulation

New Types of InsulationInsulation consists of a variety of materials and comes in many forms. These include fibrous insulation, foam insulation, insulated panels, straw panels, and insulating masonry products, as well as specialized devices to aid proper insulation techniques. Alternatives to conventional fiberglass, cellulose, and mineral wool are constantly being explored and introduced to the market place. These new types of insulation serve different needs. The following describes the new insulation types without manufacturer or product name unless it is needed to convey an adequate description. In order to convert English (Imperial) unit R-values into metric (International System units, or SI) equivalents, you can use the conversion factors listed before the bibliography.