Seismically Certified AAON HVAC Equipment
After an earthquake or seismic event, buildings containing essential services must be able to remain operational. Seismic certification of HVAC equipment provides assurance that the equipment will not only survive the earthquake, it will remain online and functional. Seismically certified HVAC equipment allows consulting and specifying engineers to meet the strictest seismic building codes, quickly and easily, without the delays of additional certification testing. Seismically certified HVAC equipment allows building owners to protect their investment.
Condensation Control – The Main Task of Low-temperature Insulation
Whereas hot installations (heating and hot-water pipes, for example) are mainly insulated to save energy, cold systems (such as the chilled-water pipes of air conditioning systems or the suction lines of commercial freezers) also need protection against condensation. On refrigeration systems, i.e. in applications where the line temperature is lower than the ambient temperature, water vapor can condense on the cold surface. Condensation on building equipment can result in considerable costs. Apart from the expense of repairing the damage, there may also be costs due to wet ceilings, spoiled goods or disruptions to production processes. Moreover, as the insulation effect of a material deteriorates greatly when it becomes damp, energy losses may rise dramatically and the risk of corrosion also increases sharply. Condensation control must therefore be the primary aim of any low-temperature insulation.
Commercial Kitchen Exhaust and Makeup Air
Commercial Kitchen Ventilation (CKV) systems ensure a safe working environment by providing a means to remove convective heat, smoke, and grease produced during normal cooking operations. CKV systems also offer fire protection via the exhaust hood to protect the occupants of the restaurant. When designing ventilation systems, compliance with local building and energy codes must be met; these include mechanical codes such as International Mechanical (IMC) or Uniform Mechanical (UMC). Comfort conditions vary, depending on several factors such as local climate, seasonal changes with outdoor air conditions, makeup air design, and integration with the building heating, ventilating, and air conditioning system (HVAC).
Energy Modeling of Ground Source Heat Pump vs. Variable Refrigerant Flow Systems in Representative US Climate Zones
The ground source heat pump (GSHP) and variable refrigerant fl ow (VRF) systems are the most competitive HVAC technologies in the current market. However, there are very few studies reporting the comparison of the annual energy consumptions and Electric Peak demand reductions between GSHP and VRF systems because of the limitation of the whole building energy simulation software. Current version of
EnergyPlus can model both GSHP and air-source VRF. Therefore, three representative US climate zones including Chicago, Baltimore and Atlanta are selected for conducting this comparison study. The EnergyPlus simulation results show that the GSHP system not only saves more energy than the air-source VRF system but also significantly reduces the Electric Peak demand regardless the climate conditions.
This makes the GSHP system a more desirable energy effi cient HVAC technology for the utility companies and their clients.
350 Euston Road: Improving Building Performances and Carbon Footprint with Innovative HVAC Solutions
This report explores the advantages of how a heat pumps with heat recovery can contribute to improving energy performance and reducing the carbon footprint of buildings, with a short payback, thus being a viable technology for energy cost reduction and for improving the environmental impact of buildings in the UK. All actions and prospective results have been designed on the real and expected needs of the building and are measured against a state-of-the-art baseline. The research shows that heat pumps with heat recovery are a viable solution for London office buildings offering an integrated approach to building heating and cooling. This shows an expected reduction of the building’s primary energy consumption by 38% and CO2 emissions by 34.6%. Due to the gradual de-carbonisation of the electric energy production in the UK, along with other ancillary solutions, such as thermal storage, solar photovoltaic plates and chiller plant optimisation systems it is possible to embrace even further efficiencies.
Pressure Control for Today's High Performance Green Buildings
The control of building pressure is essential to maintain acceptable indoor air quality (IAQ), thermal comfort, and structural integrity. Negatively pressurized buildings result in the transport of untreated outdoor air into the building. this untreated outdoor air will result in the transport of dirt, dust and other contaminants; the transport of moisture in humid climates; mold growth; and more. In addition, improper building pressure may damage the building envelope.
Greenheck Project Profile: Hospitality and Culinary Academy, Johnson County Community College
The new $10 million Hospitality and Culinary Academy at Johnson County Community College in Overland Park, Kansas is a 36,000 squarefoot building containing multiple kitchens and classrooms serving up to 700 students seeking management positions in the food service industry. It was completed in the summer of 2013, and supports JCCC’s hospitality management program, one of only 28 programs in the U.S. recognized as “exemplary” by the American Culinary Federation Education Foundation (ACFEF) Accrediting Commission. With such a reputable academic program at stake, college officials wanted this new building to showcase state-of-the-art, energy-efficient kitchen operations and deliver a first class learning experience.
New Test Standards for Louvers — International Building Code and Florida Building Code
The International Building Code (IBC) version 2012 along with the latest Florida Building Code (FBC) version 2010 have introduced new wind speed and load requirements along with new large missile impact requirements relative to wall louvers within the defined Hurricane Prone Region. This article will discuss the basis of these new standards.
Diamond Controls™ Solutions: Empowering Innovative Building Management
The Diamond Controls Solutions from Mitsubishi Electric US, Inc. Cooling & Heating Division (Mitsubishi Electric) answers challenges by pairing building automation controls with top-notch customer service. The DC-600E™ Integration Controller offers facility managers and owners an unprecedented level of control over the whole building. The wide range of offerings from Mitsubishi Electric’s Professional Solutions Group (PSG) covers every relevant service, from the initial design to post-installation follow-up support. The combination of a quality product (advanced controls) and versatile service ensures that facility managers and owners make the most of their budgets and time.
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