Energy efficient buildings and combined thermal systems for electricity production, heating, refrigeration and air conditioning

Thermal characteristics of energy efficient buildings are analyzed and energy demands are estimated. A concept of combined compressor – ejector thermal system for simultaneous production of electricity, heating, refrigeration and air conditioning is exposed. The performance characteristics of the natural gas prime motor – electric generator are assessed and optimum construction of the combined compressor – ejector refrigeration / heat pump unit is proposed to satisfy the energy demands for electricity, heating, cooling and air conditioning. Basic thermal calculations, material and energy balances of the complete thermal system are carried out and optimizing procedures for the thermal system components are given. A comparison of the proposed thermal systems and energy (natural gas) consumption with the conventional thermal systems and energy consumption for electricity, heating (natural gas - boiler), cooling (electricity – compressor refrigeration system) and air conditioning is made.

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Renewable Energy and Disaster-Resistant Buildings

Solar Energy ◽

10.1115/isec2005-76044 ◽

2005 ◽

Author(s):

William Young

Keyword(s):

Renewable Energy ◽

Natural Disasters ◽

Natural Environment ◽

Energy Efficient ◽

Potable Water ◽

Energy Systems ◽

Thermal Systems ◽

Renewable Energy Systems ◽

Energy Efficient Buildings ◽

Hurricane Season

Hurricanes, floods, tornados and earthquakes create natural disasters that can destroy homes, businesses and the natural environment. Such disasters can happen with little or no warning, leaving hundreds or even thousands of people without medical services, potable water, sanitation, communications and electrical services for up to several weeks. The 2004 hurricane season ravaged the State of Florida, U.S.A., with four major hurricanes within a 6-week timeframe. Over nine million people evacuated their homes and damage to property was extensive. One proactive strategy to minimize this type of destruction and disruption to lives is the implementation of disaster-resistant buildings that are functional and operational. This approach uses the best energy-efficient buildings, fortified to the latest codes, and incorporates renewable energy systems. Businesses, government facilities and homes benefit from using photovoltaics to power critical items. This concept is a mitigation tool to reduce damage and cost of the destructive forces of hurricanes and other disasters. This past season’s experience showed that buildings designed and built to the latest standards with photovoltaic and solar thermal systems survived with little damage and continued to perform after the storm passed. Even following a disaster, energy conservation and use of renewables promotes energy assurance while allowing occupants to maintain some resemblance of a normal life.

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Tips on Design of Energy Efficient Hospitals Air Conditioning Systems

Volume 3: 30th Computers and Information in Engineering Conference, Parts A and B ◽

10.1115/detc2010-28349 ◽

2010 ◽

Author(s):

Essam E. Khalil

Keyword(s):

Energy Efficiency ◽

Indoor Air ◽

Energy Efficient ◽

Air Conditioning ◽

Numerical Approach ◽

Healthcare Applications ◽

Energy Efficient Buildings ◽

Operating Theatres ◽

Air Conditioning Systems ◽

Careful Design

Energy Efficiency and Indoor Air Quality in the healthcare applications and particularly in surgical operating theatres are important features in modernized designs. The various reasons for deviation from obtaining optimum IAQ and energy efficient buildings are listed. The air conditioning systems serving the operating rooms require careful design to minimize the concentration of airborne organisms. Numerical approach is an appropriate tool to be utilized to adequately identify the airflow patterns temperatures and relative humidity distributions and hence energy efficient designs.

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Thermochromic Coatings for Intelligent Architectural Glazing

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.2.1 ◽

2008 ◽

Vol 2 ◽

pp. 1-20 ◽

Cited By ~ 39

Author(s):

Ivan P. Parkin ◽

Russell Binions ◽

Clara Piccirillo ◽

Christopher S. Blackman ◽

Troy D. Manning

Keyword(s):

Critical Temperature ◽

Solar Energy ◽

Energy Efficient ◽

Air Conditioning ◽

Energy Efficient Buildings ◽

Substitutional Doping ◽

Infra Red ◽

Specific Temperature ◽

Fine Tune ◽

Critical Temperature Tc

Thermochromic glazing is a type of intelligent glazing; one where the properties of the glazing change according to some external stimulus. More particularly a thermochromic window is a device that changes its transmission and reflectance properties at a critical temperature (Tc). Atthis specific temperature the material undergoes a semi-conductor to metal transition. At temperatures lower than Tc the window lets all of the solar energy that hits it through. At emperatures above Tc the window reflects the infra-red portion of solar energy. In such a way thermochromic windows may help reduce air conditioning and heating costs leading to more energy efficient buildings. This review details the nature of the semi-conductor to metal transition and indicates how substitutional doping within a crystal lattice can be used to manipulate and fine tune the critical temperature. Also detailed is the underlying science and methodologies so far employed in the production of thermochromic thin films.

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Heating Ventilation and Air-Conditioning Systems for Energy-Efficient Buildings

Sustainability through Energy-Efficient Buildings ◽

10.1201/9781315159065-9 ◽

2018 ◽

pp. 165-180

Author(s):

Karunesh Kant ◽

Amritanshu Shukla ◽

Atul Sharma

Keyword(s):

Energy Efficient ◽

Air Conditioning ◽

Energy Efficient Buildings ◽

Air Conditioning Systems

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Treated Aluminum as Highly Reflective Facade Materials for Energy-Efficient Buildings

Proceedings of the 15th International Heat Transfer Conference ◽

10.1615/ihtc15.eef.008843 ◽

2014 ◽

Author(s):

takeshi ihara ◽

Tao Gao ◽

Arild Gustavsen ◽

BjГёrn Petter Jelle

Keyword(s):

Energy Efficient ◽

Energy Efficient Buildings

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THE ASSESSMENT OF NOISE GENERATED BY HEAT PUMPS INSTALLED OUTDOORS

Akustika ◽

10.36336/akustika2020372 ◽

2020 ◽

pp. 2-7

Author(s):

Marián Flimel

Keyword(s):

Present Article ◽

Energy Efficient ◽

Heat Pumps ◽

Assessment Methods ◽

Secondary Effect ◽

Renewable Sources ◽

Time Exposure ◽

Energy Efficient Buildings ◽

Important Position

Energy-efficient buildings utilise the potential of renewable sources, among which heat pumps hold an important position. As this technology has a secondary effect on the environment through its noise immission, locations of outdoor units in the exterior should be subjected to the assessment. The present article deals with the options of placing heat pumps in the exterior and the placement assessment methods. The noise burden identification through the assessment of the time exposure is presented in the example of an in situ measurement.

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