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The hospital is investing in co-generation buildings for resilience By generating heat and electricity, the site aims to Staten Island reduces emissions and maximizes energy conservation.

Cogeneration For Boston Residential Buildings: Lowering Energy Costs

After a $ 30 million investment, years of planning and a complex structure, the Richmond University Medical Center (RUMC) is now using a plant that produces heat and electricity.

Power Plant Building Mit Massachusetts Institute Of Technology Boston Usa Stock Photo

The hard work promises to pay off, according to Daniel J. Messina, CEO of the Staten Island, New York City-based, 470-bed facility.

“We are going to use natural gas to generate heat and electricity in two units that will really move back and forth,” said Messina.

Although RUMC is ready to reap the benefits of the tree, there have been challenges along the way. To solve the financial crisis, the hospital re-used the money that would have been spent on providing electricity to another project. “We were faced with the need to [use] conventional energy and spend a lot of money to build a new emergency department. So, we made a conscious decision to – instead of going down the road usually – put that money in a power plant to get it generated,” Messina said.

Rolls-Royce, Mankato, Minn., provided two combined heating, cooling and power trigeneration units, while Gardiner & Theobald, a New York City-based construction and property consultant, worked with RUMC to implement the project . The cogeneration plant is expected to provide many benefits, not least the improvement of efficiency.

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“Cogeneration is up to 40% more efficient than combining heat and power,” said Messina. “The reality is that when you generate electricity, you generate heat. That heat is usually dissipated… That’s part of the driver for energy efficiency [and costs].

According to Messina, the new building will also help the hospital to reduce its impact on the environment, as the integration results in less sweat. The building can run on any renewable fuel and will “produce the right amount of electricity that is needed at a certain time and place,” Messina said.

“It will allow us to go out of sequence during the big weather and have full power protection,” Messina said. As one of only two health systems on Staten Island and located in a flood zone, the ability to continue serving patients at times emergencies are important. cost by providing reliable cooling to buildings that require cooling throughout the year.

A combined heat and power (CCHP) plant with a gas turbine, heat recovery engine and steam can provide the heating, cooling and energy in the hospital, realizing energy independence and lower carbon emissions than electricity. While some homes switch from heating to cooling depending on the time of year, other homes need to provide constant cooling to keep up with demand. their homes.

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Consider the example of Baystate Medical Center in Springfield, Mass., which is the largest hospital in the Baystate Health system. In another case, a CHP machine that used natural gas instead of electricity was able to provide 24/7 cooling to a newly developed ice plant in downtown Boston.

Baystate Health started a $27 million CCHP plant that provides emergency power in the event of a power outage during an emergency. The CCHP building is part of the National Housing & Urban Development (HUD) Competition.

Baystate Health is a nonprofit health care system headquartered in Springfield, Mass., that serves more than 800,000 people. The system has four hospitals, more than 80 clinical trials and 25 reference laboratories.

The three-story building is home to the largest trauma center in western Massachusetts. The plant includes a 4.6-megawatt (MW) gas turbine that produces 80% of its own energy, bringing much-needed relief to the energy crisis. The steam, which is produced by the engine connected to the conventional car engine, is also used for heating, to heat the hospital and to drive a two-stage air-conditioning system for summer warmth.

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A central heating and cooling system (CCHP) was installed at Baystate Medical Center in Springfield, Mass. Courtesy: Baystate Medical Center/BROAD USA

The CCHP system provides 80% of the electricity and 98% of the steam used in Baystate. The system can be operated in the islands for 30 days without interruption in the event of a user failure.

The BROAD absorption chiller uses waste heat from the greenhouse, increasing energy and saving more than 3, 000 MWh/year of electricity for cooling. Overall, the CCHP system reduces annual costs to the hospital by nearly $1.5 million.

Features include the use of a logic controller (PLC) with 24/7 monitoring, no maintenance pumps, installation down to 5% and proportional-integral-derivative (PID) models and models to make any improvements required as little as possible for the operator.

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The high and constant demand of 24/7 electricity, heating and cooling allows CCHP to reduce energy costs, increase efficiency and reliability, and improve environmental performance.

The BROAD absorption chiller utilizes waste heat from a trigeneration plant, increasing energy while providing a unit designed to improve user experience. Courtesy: BROAD USA

Maintaining championship quality on the ice requires a rigorous conditioning and conditioning regimen, which places high demands on it. When the Skating Club of Boston relocated to a new location in Brighton, Mass., energy efficiency was a key focus for the new facility. Tecogen provided five CHP machines for the building.

“We have five coolers there for three sheets of ice. There’s one chiller per ice block,” said Stephen Lafaille, VP of business development at Tecogen Inc. “Then there’s the N+1 chiller, which is like a redundant chiller. . The fifth air conditioner is air conditioning or ice making. This is called the lead phase. Sometimes it moves the air above the triple layer of ice. You want the air above the ice to be the right temperature and humidity because otherwise your board will fog up and water can drip. So you have to set the air for the right thing. Especially if there are a lot of people.”

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Tecogen installed a CHP system that uses natural gas instead of electricity to provide continuous cooling for the Skating Club of Boston’s new facility in Brighton, Mass. Courtesy: Tecogen

The CHP system used for the house is used on natural gas instead of electric generator. Lafaille said the project is a good project because most of their CHP installations have been rehabilitated. In this case, they found a new house, where they got a good installation because they had the opportunity to work with the installation and put the cooling where they want for the best.

“We were able to design it the right way from the beginning. It’s the best stadium we’ve ever done,” said Lafaille. “All the areas that use heat in this building are available. “

The units selected for the location were designed to not only maintain the ice conditions as well as ventilate the space above the ice, but were designed to capture waste heat from the chiller and use it for recovery. of ice, hot water, available. heating, thawing ice pits and revitalizing their cleaning systems.

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Art Sutherland, president and CEO of Accent Refrigeration Systems, said, “Ice water by their nature uses a lot of energy so we always try to do everything we can to reduce it. the cost of labor. The operating costs over the life of the building are more expensive than the initial cost of the equipment.”

Lafaille said the CHP system can benefit areas that need cooling all year round. He mentioned other businesses that are doing well include manufacturing, food and beverage, hospitals and some laboratories. Any place that needs cooling and heating at the same time has a CHP system that is very economical.

“If you have a house that needs a lot of cooling, why not do it with natural gas?” It’s better from a technical standpoint.” Lafaille said.

The return on investment (ROI) for a CHP system is even stronger in a location that will continue to operate, he said. The repayment can be as little as two years.

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The rink, Lafaille admits, is a bit of a spectacle in that sense, but it does have one advantage: It’s designed to be open to the public and people get to experience it. first in a place designed to entertain people or a car park. ceremony or a hockey game.

“It certainly helped us to show that our technology can be trusted and that there is not a large pool out there. “

That is the message they are trying to explain, especially in the case of the Law to Reduce Inflation, which was passed in August and has tax benefits for the

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