Search Results - Refrigeration
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Refrigeration is the process of removing heat from an enclosed space, or from a substance, and moving it to a place where it is unobjectionable. The primary purpose of refrigeration is lowering the temperature of the enclosed space or substance and then maintaining that lower temperature. The term cooling refers generally to any natural or artificial process by which heat is dissipated. The process of artificially producing extreme cold temperatures is referred to as cryogenics. Cold is the absence of heat, hence in order to decrease a temperature, one "removes heat", rather than "adding cold." In order to satisfy the Second Law of Thermodynamics, some form of work must be performed to accomplish this. This work is traditionally done by mechanical work but can also be done by magnetism, laser or other means. The use of ice to refrigerate and thus preserve food goes back to prehistoric times.[1][2] Through the ages, the seasonal harvesting of snow and ice was a regular practice of most of the ancient cultures Chinese, Hebrews, Greeks, Romans, Persians. Ice and snow were stored in caves or dugouts lined with straw or other insulating materials. The Persians stored ice in pits called yakhchals. Rationing of the ice allowed the preservation of foods over the warm periods. This practice worked well down through the centuries, with icehouses remaining in use into the twentieth century. In the 16th century, the discovery of chemical refrigeration was one of the first steps toward artificial means of refrigeration. Sodium nitrate or potassium nitrate, when added to water, lowered the water temperature and created a sort of refrigeration bath for cooling substances. In Italy, such a solution was used to chill wine.[3]
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Showing 1 to 25 of 193 Articles matching 'Refrigeration' in related articles. |
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1. Things to be Kept in Mind While Selecting Catering Refrigeration
November 20, 2009
In any catering business it is extremely important to serve fresh food to the clients. Keeping food fresh and at the right temperature cannot be always easy since most catering businesses prepare the food items at least a few hours in advance. With the right kind of catering refrigeration it becomes easy to store the food items at the required temperature, transport it and keep it fresh till the time it needs to be served.
There are several different kinds of catering refrigeration units that are available today, with glass displays, bottle coolers and multiple decks. Each of these units ... (read more)
Author: Radha Swami
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2. Types of Refrigeration Equipments for Catering Business
November 20, 2009
Establishments like restaurants, hotels, cafes, bars and stores widely make use of commercial refrigeration solutions in order to function smoothly. However, commercial units are not just meant for the use of restaurants, these are also extremely useful for catering business. In a catering business it becomes very important to keep the perishable food items at a cool temperature till the time they are to be served. Without the right kind of unit it becomes impossible to keep the dishes fresh till serving time.
Catering refrigeration can be done in various different ways; there are cat... (read more)
Author: Radha Swami
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3. Freezer Appliances for Domestic Use
November 20, 2009
Refrigeration units of any kind are the basic necessity in any home. There are several types of refrigeration units that can be used at home, the traditional fridge, American style fridge freezers or just freezers.
Most people thing that freezers are mainly meant for commercial use, but since there are so many benefits of freezers more and more people today are opting to use freezer appliances at home too. A freezer appliance allows a family to buy food products in bulk, which can be very economic, and thereby store it all comfortably till it needs to be used.
A freezer has a lot mor... (read more)
Author: Radha Swami
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4. Choosing a Vestfrost Chest Freezer for Domestic Use
November 20, 2009
Every home needs a refrigeration unit; it is one of the basic necessities. Earlier the traditional fridge used to be very popular, now the American fridge freezers are all the rage. With a fridge freezer there are two separate appliances, fridge and a freezer, integrated into one. Another type of appliance which is very widely used, mostly for commercial purpose, is the chest freezer.
A chest freezer has a higher capacity to store frozen items than a normal fridge freezer. Mainly these are used for commercial purpose like in restaurants, cafes and hotels; however, Vestfrost chest freezers... (read more)
Author: Radha Swami
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5. Attributes to look for when selecting an Air Conditioning and Refrigeration Training Company
November 19, 2009
Modern lifestyle is incomplete without air conditioning & refrigeration. This being true, then you would also perhaps agree that the public at large is in constant need of knowledgeable and skilled refrigeration engineers, in order to maintain and repair the refrigerators, including the air conditioning systems and equipment.
If you have any interest in repairing air conditioners and/or related control electronics, it is indeed a lucrative career option and your first step towards a successful career must be to look for a good air conditioning and refrigeration Training Centre.
Whi... (read more)
Author: Marcus Sen
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6. Vestfrost Chest Freezers for Commercial and Domestic Use
November 10, 2009
A refrigeration appliance of any time is a vital necessity in any home. There are several different types of refrigerator appliances that are available today, be it a fridge, a chest freezer or a fridge freezer unit. Chest freezers are units that are used exclusively for storing frozen food items. These units usually have a high capacity, larger room than the normal freezers in fridge freezer units and have a lid on top which is designed to be able to retain the temperature within the unit.
Vestfrost chest freezers are very widely used for commercial purposes, in restaurants, cafes, bar... (read more)
Author: Radha Swami
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7. Benefits of Frost free fridge freezers
November 10, 2009
American fridge freezers had revolutionized the refrigeration industry when they were first launched. These units integrated the traditional fridge with a freezer and presented one unique unit that could do both functions effectively. Ever since its launch the fridge freezers have been extremely popular and today there are hundreds of designs, styles, brands and features available in these units.
One of the latest and probably the most important feature to be introduced in these units are the frost free fridge freezers. In a traditional fridge, freezer or even in a fridge freezer frost an... (read more)
Author: Radha Swami
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8. The Newest Technology in Refrigeration- Frost Free Fridge Freezers
November 10, 2009
The American fridge freezers are integrated units that contain a fridge and a freezer within one unit. These units have become extremely popular since they eliminate the need to purchase two separate units. Fridge freezers today are available in plenty of brands, sizes, designs and colour combinations. Each brand has a unique style and a range of efficient features that make them all different.
The newest technology in fridge freezers is frost free fridge freezers. Every type of refrigeration unit, the traditional fridge or freezer, or even some of the older models of fridge freezers woul... (read more)
Author: Radha Swami
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9. Choosing the right type of American fridge freezer
November 10, 2009
American fridge freezers. ">American fridge freezers are the newest rage in the refrigeration industry. These models integrate fridge and a freezer into one unit for greater ease of use. Today there are several brands of American fridge freezers available in the market, each with their own unique design, features and functions.
A fridge freezer is the most basic appliance that is needed in every home and so it is extremely important that you select the one that is well suited to your needs and provides the functions and features that you would be utilizing the most. Choosing one from th... (read more)
Author: Radha Swami
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10. Home Hvac: Providing Comfort
November 01, 2009
HVAC (pronounced either as "H-V-A-C" or "H-vak") is an acronym that stands for the directly related functions of "Heating, Ventilating, and Air Conditioning"- the technology meant for indoor environmental comfort. HVAC (Heating Ventilation Air Conditioning) system design is a most important sub discipline of mechanical engineering, working using the principles of thermodynamics, fluid mechanics, and transfer of heat. Refrigeration is at times added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped like in HACR (such as the designation of HACR-rated circuit breakers). ... (read more)
Author: Todd Submitoff
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11. My Parent Rewards card, My Parent Reward Discount Card
October 29, 2009
My Parent Rewards (www.myparentrewards.com) My Parent Rewards is everything a coupon book is in a card! Instead of buying a coupon book that can only be used in 1 city, the My Parent Rewards Card is less expensive and can be used at 100,000 locations across the US and Canada. Learn More: (www.myparentrewards.comRead More on My Parent Rewards Card (MPR Card) Reviews: http://www.squidoo.com/my-parent-rewardshttp://www.squidoo.com/MPR-cardshttp://www.squidoo.com/my-parent-rewardsAdvantages of My Parent Rewards ProgramThis fundraiser requires no minimums, no storage, no refrigeration, and NO RISK!... (read more)
Author: Dexter Mcguire
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12. Things to Consider When Shopping for Commercial Refrigeration Units
October 26, 2009
Commercial Refrigeration equipments are an absolute necessity in any business establishment that offers food and beverages. These units are available in various sizes, designs and features which can make shopping for the best equipment for your refrigeration needs quite daunting. Below are the types of commercial refrigeration units and the essential things to consider when you go shopping for them.
Commercial refrigeration units usually come as standard reach-in models. However, there are many commercial refrigerator types that may fit your cold-storage needs. There are worktop refrige... (read more)
Author: Johson Mckell
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13. Air conditioning system basics and theories
October 26, 2009
In the refrigeration cyclehe refrigeration cycle, a heat pump transfers heat from a lower-temperature heat source into a higher-temperature heat sink. Heat would naturally flow in the opposite direction. This is the most common type of air conditioning. A refrigerator works in much the same way, as it pumps the heat out of the interior and into the room in which it stands. This cycle takes advantage of the way phase changes work, where latent heat is released at a constant temperature during a liquid/gas phase change, and where varying the pressure of a pure substance also varies its condensa... (read more)
Author: Wendy zong
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14. Thermal Energy Storage Systems
October 22, 2009
Thermal Energy Storage (TES) may be considered as a useful tool to reduce the number of refrigeration machines by means of spreading the daytime load over 24 hours period. Hence, any type of TES systems can be considered as useful tool to reduce the overall environmental impact for a given cooling application. Ice TES has the advantage of universal availability, low cost and transport ability through other system components. However, a conventional water based TES system for air conditioning application requires low temperature chillers and therefore standard water chillers must be replaced w... (read more)
Author: Zafer Ure
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15. Restaurant equipment for appearance and durability
October 05, 2009
So you are getting ready to open up your own restaurant – where do you begin to figure out what you need? Going to a one stop shop like an online retailer is a great place to start. They tend to have just about every piece of restaurant equipment that you need to get started.
Starting with the major appliances, you must have a good refrigeration system, freezers and ice machines. An important part of restaurant equipment is the dishwasher. Prep and working tables along with large kitchen sinks are all must have restaurant equipment.
There are so many vital elements that make up comp... (read more)
Author: rossmc cullum
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16. Quality and efficiency - Commercial Fridges
October 05, 2009
Refrigeration is key to the restaurant industry and commercial fridges are geared especially to be used in places that will use it more intensively than the regular homeowner. Keeping foods at the right temperature is important for the safety of your customers and is something that health inspectors take very seriously. Keeping foods at an incorrect temperature could mean a fast spread of bacteria that will make the food inedible and possibly make someone ill.
There are a number of commercial fridges on the market that will make sure that your foods are always kept at just the right tempe... (read more)
Author: rossmc cullum
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17. Arizona and California Residents Buying More Heat Pumps
October 02, 2009
Heat Pumps becoming More Popular for Heating and Air Conditioning
Arizona and Southern California are excellent areas for Heat Pumps
Areas like Arizona and Southern California are really starting to warm up to heat pumps. Heat pumps have been available for years, but recent rises in energy costs mixed with economic concerns have lead people to replace their aging air conditioners with heat pumps to save on costs. The reason why heat pumps are gaining popularity in southwest states like Arizona and California is because their limitations are nullified by the warm winters. Heat pumps ... (read more)
Author: William Hauselburg
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18. Air & Fuel Industrial Filters
October 01, 2009
If you want to clean out automobile, air elements are often utilized. Air filters remove particles and clean dust, mold and other baceterium that can inhibit and smallen the life of your vehicle. There are a multitude of brands available and many different options of filters to use in your automobile.
There are a variety of filters out there in the world. These include Inlet Elements, Refrigeration Oil Filters, Dust Collector Elements and Bags, and Panel Filters.
Common filter cleaning services are able of washing out an air cleaner element up to six times. Whether you pick a cleanin... (read more)
Author: Ross Hudgens
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19. California Technical Schools Popular in Today's Economy
October 01, 2009
Rancho Cordova Technical Schools Offer what a 4-year Bachelor Degree Can’t
For years, industrial jobs like HVACR maintenance were looked down upon. Because of this, enrollment in traditional 4-year colleges steadily increased. As a result, the number of people going into the trade industry went down. Now, as a record number of high school graduates are continuing onto college, attending a trade school is starting to look more appealing.
Cost plays a big role in this shift in perception. Receiving an education from a CA trade school costs less than getting a bachelor's degree from a 4... (read more)
Author: William Hauselburg
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20. Southern California Air Conditioning Sales Slow, Bright Future Expected
September 24, 2009
Despite Slowing Sales, Air Conditioning Industry Looking Forward to a Bright Future
According to a report by the Heating, Air conditioning and Refrigeration Distributors International (HARDI) summer 2009's air conditioning sales were like the weather, not so hot. Summer weather and air conditioning sales generally go together in California. When it is hot outside for weeks on end, people need an air conditioning unit which can keep up with the demand. Extended heat during the summer month can also lead to older units burning out. With a more mild summer, these issues don't pop up. Because... (read more)
Author: William Hauselburg
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21. Is DIY (Do It Yourself) Spray Foam the Best Choice, or Is It Better to Have a Professional Installa
September 22, 2009
When you plan to insulate your home, your first thoughts should focus on quality, as there are numerous different ways one can have one's abode securely insulated. One particularly good type of insulation to consider is spray foam. Both durable and water resistant, spray foam is so versatile that it is used in a variety of practical applications like refrigeration and packaging, but it is especially useful as insulation. There is little doubt that spray foam is better than fiberglass and cellulose insulation. Both fiberglass and cellulose have low R-values per inch and therefore do not prevent... (read more)
Author: Robert Bell
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22. Commercial and Industrial Air Curtains
September 24, 2009
Properly installed air curtains cut cold air loss and reduce humidity, thus reducing the load on refrigeration or air-conditioning plant and thereby saving energy by reducing compressor running time, maintenance, gas and recharging intervals. These units are an alternative to fast-acting roller doors and PVC slat curtains, and can be situated above or to the side of industrial doorways to create a powerful seal across the opening, keeping cold air in while providing complete visibility and access. This means that forklift drivers don't have to get out of their cabs to open and close doors s... (read more)
Author: Oleg Chechel
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23. Roo Boxes
September 21, 2009
A mobile roo box is a very handy structure that makes the job of the weighing and storing of hunted kills a lot less cumbersome. It is essentially a cold room with some features added specifically for the work that has to be performed in it.
The parts of a roo box include –
The trailer – The trailer is the frame on which the room is constructed. It consists of galvanised rhs frame, galvanised rhs draw bar, led lights, 2 tonne coupling, 3 tonne springs and axels, mechanical over ride brakes, rear stands and rear step.
The cold room – This is the functional area of the roo box... (read more)
Author: Nick Todd
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24. China Refrigeration
September 18, 2009
As the world leading HVAC&R trade show, China Refrigeration features a wide range of exhibits, with the latest advances in technologies reflecting the most significant developments and achievements in the industry. China Refrigeration is an ideal marketplace for the companies in the industry to launch the latest products, technologies and to find what they want, for professionals to buy, sell and build up business network. It is an annual grand occasion for the industry to share their innovations, create market opportunities and to meet cooperation partners. Sanben Technology CO.,LTD will prov... (read more)
Author: Ricardo Liu
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25. Important Things That You Must Learn About Industrial Freezer
September 17, 2009
One will find various needs for an industrial freezer in their businesses. Most businesses that handle large volumes of frozen food items and perishable products will definitely have one or more units of commercial refrigeration equipment in the business establishment. The main function of this cooling equipment in business is to keep large quantities of food stuffs in frozen state to keep them safe and fit to eat when they are purchased by their customers. At this point, it is important to note that there are basic difference between the commercial refrigeration equipment and household type. ... (read more)
Author: Ricardo Lumbardo
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