Do You Monitor Your Energy Bills?

Annual energy usage (MJ/m 2 ) for heating and ...

(Photo credit: Wikipedia)

If you monitor your utility bill, you probably already know that running the air conditioning during the warm summer months can often constitute the largest fraction of your bill.

 

In fact, they can usually use around 50% of your energy. You should inspect your chiller often, and usually this includes the water of your chiller. If you recycle the water, you need to inspect it less often than if you source your water from a stream or a lake because there are less contaminants in the water.

 

However, you still need to inspect it as pollutants such as dust and mold spores can creep in and lower the efficiency of your chiller. This article will give you some tips on proper chiller maintenance as well as a video displaying the proper way to clean your chiller tubes.

 

 

HVAC, Building Performance: Chiller Performance and Energy Usage

AC Refrigerant Leak Detection

refrigerant-tankIt can be frustrating when AC systems do not work as you expect them to. Many times, it means that the unit has a refrigerant leak.  Undetected refrigerant leaks can be very damaging to your AC system, and they are very common. R-22 is the most common refrigerant but is being replaced by Puron, also known as R-410A. This refrigerant is used by the AC system to transfer heat. There are a few places where a refrigerant leak could be:

 

1. Condensing/Evaporating coil – Requires replacement to the coil

2. Valve or access port – Valve can be cleaned by an AC technician, replacing the access port requires smoldering

3. Severe Corrosion – If the unit is severely corroded, a solder repair is not possible, so AC replacement is the most economical option.

 

There are tax credits available for purchase and install of new AC units.

Tackling AC Refrigerant Leaks

How Accurate Is The R-Value Of Insulation?

Expanded Polystyrene (EPS) foam pellets before...

Expanded Polystyrene (EPS) foam pellets before expansion (Photo credit: Wikipedia)

If you are selecting building insulation based solely on R-value, beware: you may not be getting the R-value printed on the package. Consider this: not only is how well the installation is installed a factor, but the temperature can affect it’s performance as well. The Federal Trade Commission (FTC) devised the R-value calculation as a means to protect buyers.

 

Insulation is tested using one of 4 methods, the main requirement being that the mean temp must be at 75 degrees with a temperature difference of 50 degrees. This is done with a temperature of 50 degrees on the cold side and 100 degrees on the hot side. This is considered unrealistic. Who has a dwelling where the temp is 50 degrees? Air conditioners can’t get a house that cold! Who gets a little chilly and turns their thermostat to 100 degrees? Some insulation R-values actually improves as outdoor temps drop. Examples of this include Fiberglass, Expanded Polystyrene (EPS), found in coffee cups and beer coolers; or Extruded Polystyrene (XPS), the blue or pink insulation found on exterior walls.

 

One type of insulation that actually get WORSE is Polyisocyanurate (affectionately known as Polyiso). The Building Science Corporation recently published data that Polyiso can lose up to 25% due to gas condensing in the foam. There are some steps that you can take to mitigate R-value dimunition: 1) Use more Proviso; 2) Cover it with a another type of insulation; 3) Don’t insulate the cavities. Considering temperature when making an insulation decision will definitely save energy and lower costs.

Big News: The R-Value of Insulation Is Not a Constant

Getting A Jump Start On Reclamation

Recycle logo PAP, paper

After the Montreal Protocol 25 years ago, came the 3 R’s: Recover, Recycle and Reclaim. The idea was to reuse refrigerant (R-22), the type of gas needed to operate air conditioning units and other industrial machines. For this to work optimally, service technicians need to recover the used gas, bring it to a facility and have the gas “recycled,” so it can be brought back up to purity grade (ARI-700).

 

However, the EPA has noticed that the amount of gas brought in for recycle has remained stagnant over the years. Clearly it should increase as usage has increased. Several reasons account for this. 1.) Service technicians are reusing the gas without bringing it to the proper facilities to have it recycled (which can damage machines and cause other problems), 2.) Refrigerant gasses remain relatively cheap, and the environmental “stewardship” ideal is easily overlooked by many in the industry, and 3.) Many machines can operate off retrofit HFC’s refrigerants and do not need R-22. However as the supply of R-22 tightens (which is required in certain critical applications) the desire by those in the industry to practice greater conservation should increase.

 

Industry leaders are confident that this awareness to be more resourceful is near, Senior Vice President of Airgas Refrigerants, Ken Beringer said, “People do not waste what is valuable. If the EPA had more enforcement, and made people accountable for their used product, then the culture would change. Higher pricing should help.”

Reclamation Looking for Jumpstart

What About The Cost Of R22?

refrigerant-tankFor one reason or another you are thinking about your HVAC system that uses R22. Are you looking to replace it, upgrade, or simply researching cost-saving options? Whatever the reason that brings you to this site, please be aware that despite the rising costs of R22, your most cost efficient choice could be to maintain your current system.

 

Don’t let marketing scare-tactics mislead you into thinking that you need a new system which would cost much more than current R22 prices. So, get your system evaluated by a trustworthy technician (and maybe even get a second opinion) when making considerations about your HVAC system. You may be surprised to learn that yours will have many years of service (and savings) remaining.

Don’t Let The Cost Of R22 Scare You Into A New System

4 Reasons Why Counterfeit Refrigerants Should be Avoided

There are four good reasons why counterfeit refrigerants should be avoided. First, using counterfeit and illegally imported refrigerants can cause you or your company financial harm from lawsuits, penalties or fines.

 

Second, there could be physical safety impacts, including death or serious injury to employees, resulting from explosions that can occur when counterfeit refrigerants are exposed to other products.

 

If someone is injured, it can lead to lawsuits and negative exposure. Third, counterfeit refrigerants should be avoided because they can adversely impact your company’s equipment.

 

Lastly, these fraudulent products do damage to the environment as harmful blends are released into the atmosphere. The counterfeit refrigerant problem has developed as R-22 has been phased out and illegal blended mixtures are being sold online and elsewhere.

 

4 Reasons Why Counterfeit Refrigerants Should be Avoided

Managing Your Refrigerant Phaseout with The 5 Rs

refrigerant-tankMaintaining your refrigeration can become a hassle with supplies becoming scarce. If you follow The 5 Rs, you can maintain and get the most out of your equipment.

 

Record Keeping is the first R. Knowing your inventory will lower costs and maximize what you have.  Repair Leaks is the second R. This helps keep the R 22 in your equipment.  Recovery and Reclaim is the third R. This includes recovering and reusing your R-22.  The fourth R is Replace old equipment. By upgrading you will no longer need R-22 and will run on R-410A.  Last R is retrofit to zero ODP refrigerants. This means retrofitting to run on new refrigerants instead of R-22.

 

Follow these 5 R’s and you will maximize the performance of your refrigerants.

 

Managing Your Refrigerant Phaseout with The 5 Rs

Five Warning Signs of Counterfeit Refrigerants

The article begins by mentioning how important it is to have the proper refrigerants. If you happen to get counterfeit ones, some potential problems could arise, these include: equipment damage to life-threatening reactions and explosions.

 

Since these are serious issues to try and avoid, and since imitation refrigerants are indeed out there, the article presents five warning signs to help you notice counterfeits. The first thing to do is a visual check of the product packaging. Next, you should perform chemical tests.

 

You can also check your electric bill to see if your machine is running less efficiently. Remember, if the price is too good to be true, it probably is. Finally, stay in the network and you can’t go wrong.

 

Five Warning Signs of Counterfeit Refrigerants

EPA Finalizes R-22 Allocations for 2012-2014

Tanks

Tanks (Photo credit: Valerie Everett)

The amount of the refrigerant R-22 permitted to be produced in a given year will be altered once again by the Environmental Protection Agency.

 

As this chemical is damaging to the ozone layer, it is being phased out of use, but the manner in which to do that is delicate and requires adjustment. Accordingly, 2013’s allocation will be 62.8 million pounds, thirteen percent higher than 2012, but 2014 will be twenty percent lower than 2012.

 

All this is due to 2013’s Final Adjustment Rule, after the EPA determined that there was an over-supply of and low demand for virgin R-22.

 

EPA Finalizes R-22 Allocations for 2012-2014

International Heating and Cooling Product Distributor Pleads Guilty

7701962062_7ecd149f69_mFSD Group, LLC, which is headquartered in Miami, has been convicted and sentenced in connection with the illegal receipt, purchase, and sale of ozone-depleting refrigerant gas that had been smuggled into the United States contrary to the Clean Air Act, according to court records and U.S. officials.

 

FSD Group LLC pled guilty to a one count of knowingly receiving, buying, selling and facilitating the transportation, concealment, and sale of approximately 65,592 kilograms of the ozone-depleting substance hydrochlorofluorocarbon-22 (“HCFC-22″) which had been illegally smuggled into the United States contrary to the Clean Air Act.

 

The firm was sentenced to three years of probation and ordered to pay a $100,000.00 criminal fine. This case was among those investigated through a multi-agency initiative known as Operation Catch-22. To date, Operation Catch-22 has made possible the successful conviction of nearly a dozen individuals and corporations at every level of the refrigerant gas smuggling and distribution chain.

 

International Heating and Cooling Product Distributor Pleads Guilty