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Variable Speed Compressors

Variable Speed Compressors

compressorThere is a definite global need and initiative to conserve energy.  This, combined with mitigating climate impacts is and has been putting pressure on manufacturers to design new ways to continue energy efficiency measures and reduce damage to the ozone layer all at the same time.  According to the research done on behalf of your St Louis Refrigeration Sales and Service, “This pressure is driving an uber-trend of sustainability in the refrigeration industry and has led to some truly innovative solutions and breakthrough technologies, especially in the design and production of compressors.”

Variable speed compressors are just one example of the above.  They tend to be extremely flexible and provide tremendous energy efficiency. Your St Louis Refrigeration Sales and Repair know that they are designed to adapt the cooling capacity according to the refrigeration need and are capable of working in any energy grid worldwide, regardless of the voltage and/or frequency being used. Thanks to the development of an intelligent electronic inverter, variable speed compressors are possible.  They have sensors that identify the temperature inside the cabinet and send signals to the compressor to change its speed to reach the target temperature much faster. Because a variable speed compressor cools according to need, it consumes 40% less energy than a conventional compressor, thereby accomplishing the combined goal of energy efficient and highly functional in refrigeration.

Looking at these compressors from a global view, it is apparent that variable speed compressor usage is trending globally and is already well established in many developed countries that are more focused on energy efficiency than others. “For example, approximately 90% of compressors currently in use in Japan are variable speed. In 2011 there were six million variable speed compressors in use around the world; by 2018 it is estimated that number will be 23 million. This is good news for the environment and for consumers.”

 

Refrigeration Continues to Gain Interest

Refrigeration Continues to Gain Interest

InterestRefrigeration has many facets of interest in the real world as the global appetite for refrigeration is growing at an unprecedented rate according to experts.  On behalf of your St Louis Refrigeration sales near Overland, we bring you some of the details to back up the facts. Not only is there increasing demand for commercial refrigeration for food storage and transportation, but the domestic refrigeration market is also booming according to the sales of area refrigeration retailers in and around St Louis MO. “In mature, saturated regions like North America, home refrigerator and freezer sales are primarily driven by replacement. In emerging markets such as the Middle East, Latin America and China, the growth is spurred by a new, more affluent middle class demanding modern appliances and improved food quality and variety.” To back this up is the fact that in India, for example, purchase of home refrigerators grew by double digits last year alone.

The rapidity with which the market continues to grow has consequences, according to much that we read on behalf of your St Louis Refrigeration Repair near Overland.  “This rapid and continued growth has serious economic and environmental consequences. With the increase of refrigeration units in use comes the corresponding increase in energy consumption and environmental impact.” We can do the math by counting the approximate 1.4 billion domestic refrigerators and freezers in use worldwide, each with an annual average consumption of 450 kWh.

If we look at this from a different angle, on behalf of your St Louis Refrigeration Maintenance near Overland MO, home refrigeration units consume 649 TWh annually all together, which is equal to the entire energy consumption of the American Midwest, including Illinois, Indiana, Michigan, Ohio and Wisconsin, for one year. And, these numbers are expected to climb, as the global appetite for refrigeration continues to increase.

Ventilation in Your Commercial Kitchen

Ventilation in Your Commercial Kitchen

ventilationAt the onset of your new restaurant opening and just before you put into use all that you have learned about how to effectively run a business, you really ought to take some time to research your commercial kitchen and it’s ventilation needs before you check the box for done.  While you should always check with official national and local fire codes, we’ve compiled a few answers for frequently asked questions to help you understand what to pay attention to when it comes to your kitchen ventilation, all of which we gathered from online research done on behalf of your Restaurant Equipment sales in St Louis near Overland MO.

You will need the right exhaust hood despite your choice in restaurant equipment. This decision has a few factors to weigh in while pondering.  A, which type of exhaust you will need based on what you will be cooking.  Also, there are two basic types.  One is for the style cooking that is heavy on grease and smoke such as grilling, broiling or frying.  Type 2 is for the heat and moisture that results in baking or steaming.  Obviously, depending upon your Restaurant Equipment in St Louis MO and the style of cooking you most often do, the hood option will vary.

Another requirement for consideration when looking at ventilation of your St Louis Restaurant Equipment near Overland MO, is the actual physical size and mounting height that should be determined based on the capture zone required.
Ventilation design and how your ducts run to the outside have a big impact on your needs as well. Ducts with longer runs that aren’t straight may require a higher exhaust rate since the air is traveling a greater distance.  When setting out to decide on ventilation for your Restaurant Equipment in St Louis, be sure to consult a professional.

Bottoming Cycles and Recycling in HVAC

Bottoming Cycles and Recycling in HVAC

HVACAs a follow-up to our previous posts regarding St Louis HVAC service near Overland and some of the heat recycling methods out there, we are going into more detail about bottoming cycles.  “Bottoming cycles are mostly used in industrial facilities in the chemical, paper, and primary metals sectors, as these industries often have high-temperature waste streams that are favorable for waste heat recovery. As much as 20-50 percent of the energy consumed in some industrial processes is ultimately lost through waste heat contained in streams of hot exhaust gas and liquids and through heat conduction, convection, and radiation from hot equipment surfaces and heated product streams.”

The goal, so to speak, is a simple one that applies to only some processes as others may not be safe enough when it comes to the waste they produce.   The overall energy efficiency of some industrial processes can be improved by capturing and reusing the waste heat, however, in situations where it makes sense from a safety and function point of view.  In our recent research on behalf of your St Louis HVAC installation near Overland MO, we discovered many facts surrounding the process to share here and in posts to follow.

“In some cases, such as industrial furnaces, efficiency improvements resulting from waste heat recovery can improve energy efficiency 10-50 percent. A study by the U.S. Department of Energy’s (DOE) Energy Efficiency and Renewable Energy office (EERE) identified research, development, and demonstration efforts to expand waste heat recovery practices in the U.S. industrial sector.”  In the aforementioned study, the waste streams analyzed showed that roughly 60 percent of unrecovered waste heat is low quality (i.e., temperatures below 450°F).  We will explore more regarding what this means as we further our research into heat recycling and HVAC in St Louis.

History of Refrigeration

History of Refrigeration

refrigerationThe history of refrigeration is one topic we have been meaning to explore for a while now, and so, on behalf of your St Louis Refrigeration Repair and Sales near O’Fallon MO, we will start discussing that very subject today.  There have been many changes in the way refrigeration works over time.  Salting food was a common preservation method before the invention of refrigerators. Bacteria cannot survive in salt, so rubbing dry salt on food or covering it in a salt solution called brine can help keep meat and other foods from spoiling. “Some people had the advantage of an icehouse to cool their food to preserve it, which was the earliest form of a refrigerator.”  According to our efforts in research on behalf of St Louis Refrigeration sales near O’Fallon, we know that GE came up with the first refrigeration that not all people could necessarily take advantage of due to cost.

“After General Electric produced the first electric refrigerator in 1911, the wealthiest Americans could afford the luxury of having this new invention in their homes. Other people used an icebox to preserve their food.” An ice box was a costly alternative, according to Refrigeration sales and service in St Louis, because so much water had to be used and frozen. After freezing it, the ice had to be cut, stored and finally, delivered.  In the 1930’s is when Freon was first put to use inside refrigeration.

Progressing down the timeline on behalf of your Refrigeration sales in St Louis near O’Fallon, we find that after WWII, refrigerators were produced in mass quantities, making them affordable and widely available in the US. They popped up with new features like automatic defrosting and icemakers. “Combination refrigerator and freezer units were immensely popular. Throughout the 1970s, 1980s and into the 1990s, environmental concerns over the use of Freon were debated and studied. Because of its estimated effect on the environment, the government put tight restrictions on the use of Freon in refrigeration equipment.”

Overheating Deaths

Overheating Deaths

fanLooking further into the effects of natural disasters on HVAC systems on behalf of your St Louis Heating and Cooling Repair near Clayton MO, we found some interesting information regarding the Great East Japan Earthquake and the tsunami that resulted in March of 2011.  “The aftermath of the Great East Japan Earthquake and resulting tsunami of 11 March 2011 provided researchers an unexpected opportunity to explore the relationship between air conditioning and risk of heat-related death.” According to our research on behalf of St Louis Heating Sales near Clayton, there have been many prior studies that reported associations between access to and/or use of air conditioning and lower mortality risk. However, the new results, published in Environmental Health Perspectives online, suggest that reducing the use of AC during summer heat may not necessarily have adverse consequences for human health, depending on the age and existing health of the people being considered.

The following was reported, “The 2011 earthquake and tsunami severely damaged the Fukushima Daiichi Nuclear Power Plant and caused severe electrical shortages in the Tokyo metropolitan area. To conserve energy, the government strongly encouraged residents served by Tokyo Electric Power Company and Tohoku Electric Power Company to reduce electricity consumption by 15% from July to September of 2011.

The urgency was heightened to reduce energy consumptions although campaigns promoting energy conservation have long been a summertime fixture in Japan.   Many residents of Japan working to reduce cooling bills and energy consumption swapped AC for fans.  The end results were not troubling to their health.  Interestingly enough, heat related deaths actually decreased during this time.

 

On-Command Hot Water Recirculator

On-Command Hot Water Recirculator

water recirculatorThe world has been leaning green for the past several years now and HVAC is no exception.  “As recently as December 2013, President Obama said that the U.S. federal government must double its reliance on renewable energy by 2020, meaning that 20 percent of its energy supplies will need to come from renewable sources. The reliance on green energy has several benefits, including the ability to decrease the ‘environmental footprint’ on the plant, according to the U.S. EPA as well as to alleviate energy security issues while spurring economic growth within the U.S.”

We set out, on behalf of your St Louis HVAC sales and installation near Kirkwood, to deliver more info on just what that means from an HVAC perspective.  We know that the green trend means plenty of changes to the HVAC industry, but just exactly what, we were not sure. “Companies in the U.S. and worldwide are involved in research to create more energy-efficient traditional systems as well as new types of systems that run off alternative energies, such as geothermal or solar.”  We found a lot of information when researching for your St Louis HVAC sales near Kirkwood, but also realized that even more improved technologies can be expected in the future as companies work toward changing this country’s reliance on fossil fuels, which in the U.S. stands at 82 percent. “Only about 9 percent of the country’s energy supplies currently make use of renewable sources, which leaves plenty of room for change in HVAC systems.”

The on-command hot water recirculator is the one product we will describe today, in the HVAC green movement.  “This product, produced by Taco, Inc., out of Cranston, Rhode Island, saves money, energy and water while delivering hot water in a timely manner.” It involves installation of the “On Command” pump that attaches to the hot and cold water lines under a kitchen or bath fixture in a home, according to our HVAC research. “When activated, it allows the cool water being drained to circulate back to the water heater through the cold water line, allowing hot water to be delivered at any time 24 hours a day.”  The energy conservation is obvious here and kicks off our series in the St Louis HVAC installation near Kirkwood on HVAC renewable energy and green movements.

Slicers and Other Small Restaurant Equipment

Slicers and Other Small Restaurant Equipment

slicerPrep tables, counters, and cutting surfaces are essential to any commercial kitchen and come in various sizes.  Today we will be looking at the different smaller components in your commercial kitchen as we bring you our newfound information on behalf of your St Louis Heating and Cooling Service near Maryland Heights MO.  We are attempting to answer some of the questions surrounding how to find what your commercial kitchen needs in the way of HVAC as well as restaurant equipment.

For starters, it is recommended that you choose preparation surfaces made of stainless steel. Stainless steel is sturdy against corrosion, resists attack from food and meat juices, and can withstand the harsh cleaning products used in commercial kitchens.  From your St Louis Heating Installation near Maryland Heights, we are passing along our recent discoveries.  When it comes to surfaces that you use for cutting, it is advised by all that we read on behalf of your Heating Repair in St Louis near Maryland Heights, that you choose either plastic or wooden cutting boards. “Plastic boards are easier to sanitize but can develop deep grooves that can hide bacteria. Wooden boards are generally tougher than plastic ones and don’t develop grooves as easily.”

Slicers are often tasked with cutting meat, cheese, or other foods with speed and precision and are another common purchase for those stocking their restaurants with equipment in St Louis MO. “If you need to purchase a slicer, consider how often you’ll need to use it. If your slicing is low volume or infrequent, a manual food slicer is a better, less expensive option. However, for larger amounts of food or foods that need to be cut to specific proportions, choose an electric slicer instead. Electric slicers are automatic, which can save you time and labor. Moreover, most electric slicers allow you to turn off the automatic function and operate the machine manually.”

Refrigeration History Elaboration

Refrigeration History Elaboration

historyDid you know that the Chinese harvested ice from rivers and lakes as early as 1.000 BC in the name of primitive refrigeration?  They even had religious ceremonies for filling and emptying ice cellars. That’s not all.  Hebrews, Greeks, and Romans placed large amounts of snow into storage pits and covered it, insulating material like grass, chaff, or branches of trees. They actually used these pits as well as snow to cool beverages, according to our recent research on behalf of your St Louis Refrigeration Maintenance near Sunset Hills MO. “Egyptians and ancient people of India would moisten the outside of the jars and the resulting evaporation would cool the water that was inside of the jars. The first group of people to use cold storage to preserve food was Persians. They invented Yakhchal, a type of an ice pit.”  The history of refrigeration is a very interesting subject with vast effects from one end of the world to the other.

According to our studies done on behalf of your St Louis Refrigeration Sales, we learned that ice harvesting was the only method of food refrigeration for centuries.  In fact, in 18th century England, servants collected ice in the winter and were putting it into icehouses. “Icehouses were places where the sheets of ice were packed in salt, wrapped in flannel, and stored underground to keep them frozen until summer. In the 19th century, the first ice boxes started appearing in England. At that time, the first commercial ice started appearing with spreading of ice-storehouses and iceboxes. Frederic Tudor started harvesting ice in New England and shipping it to the Caribbean islands and to the southern states. At first he had ice wastage of 66% but with better insulated ships he reduced the waste to 8%. He expanded ice market and by the early 1830s ice became a mass-market commodity.”

We hope you have enjoyed this lesson on the history of refrigeration brought to you by your St Louis Refrigeration sales and repair near Sunset Hills.

 

HVAC Take One

HVAC Take One

take oneWe like to bring you all the latest news in the world of HVAC on behalf of your St Louis HVAC sales and service near O’Fallon MO, but sometimes it is important to reevaluate the information you share and attempt to cover more of the basics for those in your audience who may be unaware.  So, today, we will look at the basics of St Louis MO HVAC and hopefully help our readers get on the same page before we start covering more advanced details in our future posts.

Most homes are heated and cooled through a central, whole-home, Heating, Ventilating, and Air-Conditioning system (HVAC). The HVAC may well be one of the most expensive and energy hungry systems in the home, so the more you know about your HVAC, the better off you will be, especially if you act on what you know. A well-informed homeowner will save money and have a healthier, more comfortable home indeed.

When you hear people refer to St Louis HVAC near O’Fallon as split, this is a real thing and is due to the following, “Central HVAC systems are often called ‘split’ systems because some of the components are installed inside the home and some of the components are installed outside a home. Inside your home, usually installed in the basement, attic, or a closet, you’ll find the furnace (oil, gas, or electric) and the evaporator portion of the air-conditioner. You’ll also find the blower (sometimes called an air handler), which serves both the furnace and the air-conditioner. Attached to the blower are ducts, which are tubes acting as pathways to deliver heated or cooled air to various rooms in the house.”  Furthermore, the AC (or heat pump)has a condenser/compressor involved in its functioning, according to your HVAC sales and service in St Louis and it is typically installed outside the home, while the furnace, the evaporator and the blower are installed inside the home’s St Louis HVAC near O’Fallon MO.