Archive for July, 2010

GM set the tone with greener air conditioning systems

Monday, July 26th, 2010, by Richard Salmon

air-conGM are keen to promote their greenhouse gas-friendly air conditioning unit in a bid to overcome the bad PR that surrounded their bailout by the US and Canadian Governments.

Any car purchased before the 1990’s was installed with a air conditioning unit most likely powered by Freon (R-12). The company were ideal in giving drivers a comfortable environment and even better at releasing greenhouse gases that were harmful to the ozone layer. So in the mid 1990’s GM’s switched to a less harmful R-134a.

The R-134a quickly became more popular but still emits greenhouse gases into the envrionment that don’t break down very quickly. The refirgerant has an atmospheric life of more than 13 years which gives it a global warming potential (GWP) rating over 1,400.

So through a partnership with Honeywell the new GM air conditioning unit will use HFO-1234yf a chemical that breaks down much faster in the air than a R134a. And instead of 13 years the chemical breaks down in 11 days making the GWP 4, which is 99.7 per cent lower than R-134a.

The greener air conditioning system will be used in 2013 editions of the Chevrolet, Buick, GMC and Cadillac models in the US. The new air con system will not only hit EPA’s new motor vehicle greenhouse gas regulations for 2016, but it will also set the standards for car companies around the globe.

Nursing home fined after air conditioning failure

Thursday, July 22nd, 2010, by Richard Salmon

A nursing home in Baltimore, America has been fined $52,500 in state fines over air conditioning failures which forced the transfer of 150 patients from the facility.

The Ravenwood Nursing & Rehabilitation Centre – who have risked losing its licence – had air conditioning pumps and compressors that had been inoperable since last summer, with blowers and filters in patients’ rooms dirty and clogged.

The state Office of Health Care Quality found that on July 2 the centres chilled circulation pumps had failed and the temperatures of the patient care floors had begun rising, reaching 90-96 degrees by the time state inspectors arrived on July 6th. One of the West Franklin Street centre patients had to be treated for heat-related dehydration at a local hospital.

The home’s walk-in refrigerator was found with the door propped open with a food cart to help cool the kitchen down. Due to this, fridge temperatures had climbed to 60 degree. Safe temperature for food storage is 41 degrees.

“The chronic problem we saw was a failure to maintain a cooling system that could withstand the heat that was predicted that week,” said Nancy Grimm, director of the Office of Health Care Quality. “The acute problem was a failure to communicate and respond to the loss of the air conditioning” before it became a crisis, she said. “There may be some financial issues as well, which we’re working through right now.”

Chief Operating Officer of Ravenwood Healthcare Inc, Michael D. Smith, issued a statement expressing gratitude to the state and the city for full assistance with what he called  “our recent voluntary evacuation of our facility following unexpected air conditioning problems.”

The state’s report “reflects some needed work” on the air conditioning system, Smith said, but it “actually only became inoperable on [July 4]…It is unfortunate that the system could not be immediately repaired once inoperable.”

However the state’s investigation found that Ravenwood’s managers were aware about the breakdowns in the air conditioning for more than a year, failed to take timely, effective action to avoid a complete failire, and did notify the Department of Health and Mental Hygiene of their problem.

Grim said that Ravenwood did nothing to get people out saying, “They didn’t do anything to ensure or suggest that. So we said, ‘We’ve got to get these people out of here.’ And they agreed to it.”

“The outcome of these problems together is that 150 residents were abruptly uprooted from their home, family and belongings, and they had little control over the situation, which we found to be a psychosocial harm to the patients,” Grimm said.

At present the nursing home is empty and the $52,500 has been ordered to a draft plan of correction in 10 days. Ravenwood have three months to achieve ’substantial compliance’ with state and federal standards of care.

The Department of Health and Mental Hygiene will recommend that Ravenwood will be denied Medicare or Medicaid payments for new admissions if the home is not in substantial compliance by October 16th.

Patients will not return to the facility until it is reinspected.

Smith, Ravenwood’s COO, said the air-conditioning system has been repaired and inspected. “All the units are running and cooling the facility,” he said. “We are currently working with [the Office of Health Care Quality] and hope to begin returning residents to their home within the next several days following a revisit by their office.”

Authorities were made aware of the situation after a patient called 911 complaining that the building was too hot and ‘he wasn’t able to breathe’ on July 6th according to the state’s report.

When paramedics arrived Ravenwood personnel began to move patients to an area of the building with working air conditioning and portable air conditioning was brought in.

How Much Energy Does an Air Conditioner Use?

Tuesday, July 13th, 2010, by Richard Salmon

Malaysia’s ‘cheapest’ hotel – the Air Asia branded ‘Tune Hotels’ – offer an interesting pricing model. Rooms are incredibly inexpensive – often very close to free – and offer minimal comforts. Air conditioning, excess electricity, and other ‘luxuries’ are charged on their own, with visitors presented a bill upon checkout.

The two-tier pricing makes it seem as if air conditioning is a taxing extra expense, costing hotels thousands of dollars monthly. In reality, an air conditioning service is relatively cost-effective, and certainly not the power guzzler that many people believe it to be.

American air conditioning company AeroSys were one of several to learn that air conditioning must be cheap, after their units were withdrawn from the market due to excess electricity usage. Despite the cost-inflating behaviour of ageing air conditioning units, newer air conditioners are required to maintain a certain power level by law.

This leaves the actual cost of air conditioning at very low rates. When used correctly, an effective air conditioner can cool an entire home for less than two pounds daily. Energy conservation advocates claim that expensive power bills are often the result of air conditioning misuse, not the unit itself.

Small changes such as fan strength and room temperature can greatly influence electricity usage, with high-power fans and extreme temperatures drawing more power than moderate use. The message for consumers is clear – air conditioning isn’t expensive, except when used ineffectively. With the right strategy, air conditioning can be a cooling method no more expensive than the average ceiling fan.

Air Conditioning as a Design Element

Monday, July 5th, 2010, by Richard Salmon

For most building developers and architects, air conditioning is more of a design hindrance than a blessing. Thousands of air conditioning units can mark the sides of a building, turning potentially beautiful condominium towers and office buildings into Lego brick constructions, all featuring boring beige boxes on every floor and balcony.

However, for some designers, air conditioning has become a powerful, unique, and visually appealing design element – providing an effective and also aesthetic air conditioning service. These two examples of innovative air conditioning design prove that there is design value in an air conditioning unit, no matter how beige, boxy, and uninspiring it is.

1. The Lloyds Building, London New Lloyds building again by Elsie esq..

The Lloyds Building is an interesting piece of London’s architectural history, and one that’s drawn a lot of praise (and a lot of criticism) across its life. What makes the Lloyds Building so unique is its use of air conditioning ducts, stairs, and other building utilities. Once reserved for the inside of a building, the Lloyds Building uses them as a design element on the outside.

Interesting or just plain ugly? Most architectural critics are fans, citing the building’s innovative use of air conditioning as a major feature of London’s city skyline.

2. The HSBC Headquarters, Hong Kong

Hong Kong June 2009 by Remko Tanis.Hong Kong is the skyscraper capital of the world, and the giant HSBC Building certainly keeps up with its image. Constructed, like the Lloyds Building, with the air conditioning ducts on the outside, this innovative high-tech structure uses air conditioning as a major design feature. Love it or hate it, this cool construction method has drawn praise from architects and energy efficiency experts alike.

Air Conditioning Hero Helps the Homeless

Friday, July 2nd, 2010, by Richard Salmon

A shining knight has come to the rescue of a homeless shelter in the US after he’d heard that thieves had stolen the shelter’s five air conditioning units.

Monty Weeks, owner and vice president of Weeks Service, showed up at the Turning Point Center last Wednesday with five replacement units in tow to restore a cooling, comfortable temperature in what is now the hottest period in the USA’s summer.

“It’s a shame that happened,” Weeks said. “We just wanted to get that turned around for them as soon as possible.”

“It’s a way of giving back, it’s just part of what we do,” Weeks said. “Those people were in need, and that was a need we could fill, so we did it as soon as we could.”

Houston police continue to investigate the theft. The units cooled the building where clients attended classes on programs such as anger management, continuing education and social and life skills.

With the air conditioning working again, residents were back in the building for their classes within 24 hours.

“It was so gratifying and kind,” director George Gomez said. “They didn’t want any recognition. You can’t help but be moved.”

“It restores your faith in humanity. We get a lot of criticism as Americans, but we live in the best country in the world. The goodness of these people outweighs the bad. You just don’t hear much about the good things that happen.”

Air Conditioning Issues Force $325 Million Art Exhibition to Close

Thursday, July 1st, 2010, by Richard Salmon

When the Washington DC ‘Corcoran’ Gallery borrowed paintings from Wales’ top museums, they certainly didn’t expect to keep them boxed up and away from viewers. However, after a series of air conditioning service errors, the popular gallery has decided to pack the paintings up and store them away from their gallery, aiming to prevent air damage and poor treatment. Corcoran Gallery of Art by afagen.

The exhibition, which featured art from Turner and Cézanne, was forced to close after the museum’s air conditioning system failed to provide a stable level of heat and humidity. Aiming to avoid potential damage to the paintings, the museum decided to pull the exhibition almost two months before it was due to close.

Fourteen paintings were on loan from Wales’ various art museums, including many rarely seen outside of Europe. Though the exhibition plans to continue throughout the United States – organizers are moving the paintings to New Mexico shortly – member of Washington DC’s art community are disappointed that their viewing time was cut short.

Museum air conditioning systems, particularly visual art air conditioners, are often required to perform at a stable temperature in order to keep paintings safe from water or heat damage.