ventilation system efficiency Articles

  • Effects of Headroom on the Performance of the Displacement Ventilation System

    IntroductionIn recent years an increasing amount of health evidence from building occupants has confirmed the existence of sick building syndrome (SBS). This is where occupants within a building begin to report feelings of nausea, headaches and general feelings of illness. Additional symptoms of this health problem include eye, nose and throat irritation, coughing and fatigue. The fact that most ...


    By SAGE Publications

  • In the aeration tank, the turbo provides ventilation

    Robust in operation: at Emsbüren, the AERZEN turbo saves quite a lot of energy At Emsbüren wastewater treatment plant, Wasserverband Lingener Land invested in new blower technology for the aeration tank. In comparison with the old assembly, the turbo blower made by AERZEN saves between 100 and 200 kilowatt hours every day. Modernisation of wastewater treatment plants in order to ...

  • Confused about Carbon Monoxide and Ventilation?

    How does it affect you, the Building Owner and HVAC Contractor? There has been a lot of press regarding Carbon Monoxide Detectors (CO) and Smoke Detectors in the news over the past year. In most cases, this is justified and certainly the attention and awareness is important. As a contractor though, how does this affect you and the HVAC market place? It’s important to understand the ...


    By Arjay Engineering Ltd.

  • Confused about Carbon Monoxide and Ventilation?

    There has been a lot of press regarding Carbon Monoxide Detectors (CO) and Smoke Detectors in the news over the past year. In most cases, this is justified and certainly the attention and awareness is important. As a contractor though, how does this affect you and the HVAC market place? It’s important to understand the difference between private residential monitoring for personal safety ...


    By Arjay Engineering Ltd.

  • The mills grind efficiently

    The – “Milser Mühle“ – has relied on AERZEN for 50 years When the Borgstedt Family took over the Milser Mühle 130 years ago, at first, it only produced feed material, and then, from 1918, it started to produce flour for human food. “Therefore we selected oilfree compressing AERZEN Positive Displacement Blowers of series GM as conveying air producer ...

  • Building Experience: Energy Efficient Buildings

    Issue: The development of large commercial, governmental and even residential buildings which take advantage of energy efficient design and incorporate on-site renewable energy sources could have a major impact on achieving and maintaining Kyoto targets on reducing carbon dioxide (CO2) emissions in the future. Although demonstration sites across Europe have been built, the lessons learnt in their ...


  • Our top tips to retailers to improve environmental efficiency

    Waste Management Improve landfill diversion rates and reduce costs with rising landfill tax and waste management costs: Contact suppliers or head office to improve waste management by reducing the amount of packaging used or implementing take back schemes therefore eliminating waste Review waste storage facilities – ensure sufficient quantity of bins, labelling of ...

  • Can low-income housing be energy efficient and affordable?

    Residents of low-income housing need energy efficiency more than others, but are less likely to be able to afford it. How to escape the Catch-22? In Ann Arbor, Michigan, the local housing commission is completing floor-by-floor renovations in the five-story Baker Commons public housing ...


    By Ensia

  • Energy efficiency markets chooses its favorites of 2008

    We appreciate the entries submitted for Energy Efficiency Markets’ first annual ‘best of’ contest. It is difficult to select winners in an industry that is burgeoning with innovation. We hope you find our selections as intriguing as we did. Please continue to email us about interesting projects – we’d like to highlight them periodically in our weekly newsletter:1. Best appliance: Energy ...

  • Combined heat & power is a clean, efficient and economic energy solution

    The 21st century has highlighted a need for clean, efficient and economic energy, which has put Combined Heat & Power (CHP) into the limelight. By providing on-site power generation, waste heat recovery and system integration, CHP offers a realistic, near-term solution for exceptional energy efficiency and emission reduction. CHP systems can generate electricity locally while they recover ...


    By Shenton Group

  • Gas Detection and Monitoring Systems

    In greenhouse applications, the accurate measurement of a number of environmental parameters such as carbon dioxide concentration, temperature, light intensity, water, humidity, pH and nutrient levels using sophisticated sensors is used to create a controlled environment for optimising plant growth rates while minimising energy usage. Carbon dioxide concentration is also one of the best ...


    By Edinburgh Instruments Ltd

  • Retrofit Intelligent Dust Extraction System

    Western Air Ducts Retrofits Intelligent LEV Solution at City of Oxford College The proffesionally equiped woodworking workshop at the Rycotewood Furniture Centre, at the City of Oxford College city centre campus, is a key resource for the many students of furniture design and ...


    By Western Air Ducts (UK) Ltd.

  • UV Light Treatment for HVAC Systems

    Ultraviolet (UV) light can be applied to support numerous applications in a broad range of industries. In commercial paint spray booths and label manufacturing plants, UV lamps are used to streamline paint jobs and the printing of logos. Outside of such practices, the light source may also be utilized to eradicate harmful, disease-causing bacteria. Systems that rely on the light’s ability ...


    By Larson Electronics LLC

  • Thermodynamic analyses of advanced desiccant cooling systems with various configurations

    Six configurations of conventional and advanced desiccant cooling systems are presented, analysed and compared thermodynamically. The advanced systems are modified forms of the conventional systems. These advanced systems are desiccant cooling systems in the ventilation mode (ADV), the modified ventilation mode (ADMV) and the recirculation mode (ADR). For each configuration, a thermodynamic model ...


    By Inderscience Publishers

  • Design of passive cooling system for a building in composite climatic conditions in India

    A combined solar chimney?wind tower concept has been developed for a typical urban institution building in Delhi. Due to site limitations, the concept of solar chimney based ventilation has been introduced through roof mounted thermo-siphon air panels of 70 m? absorber area. A wind tower provided on the suction side of fresh air has potential for cooling incoming air by 5?C by using 250 m? of ...


    By Inderscience Publishers

  • Hydrogen Sulfide Scrubber Systems in Hydrometallurgical Application

    Hydrogen Sulfide is a highly toxic and flammable gas. Being heavier than air, it tends to accumulate at the bottom of poorly ventilated spaces. Although very pungent at first, it quickly deadens the sense of smell, so potential victims may be unaware of its presence until it is too late. The lethal concentration for 50% of humans is 800ppm for 5 minutes of exposure. H2S is a by-product in many ...


    By Macrotek Inc.

  • How to Extend the Life of Your HVAC System

    How to Extend the Life of Your HVAC System  The Heating, Ventilation, and Air Cooling or HVAC system that you’ve installed in your house ensures comfort and clean air indoors for the entire family. It’s also probably one of the costliest systems in your home. So it only makes sense that you’d want to get the most out of it before it starts to show any wear, and prolong its ...


    By Filter Buy

  • Building Energy Management System - Ford of Europe Daventry - case study

    Use ENER-G's intelligent building controls and take advantage of: Average financial savings of 43% No capital investment 30% reduction in C02 emissions ENER-G's innovative Building Energy Management System (BEMS) offers seamless integration with your buildings' heating, lighting and ventilation. Our high technology solution can reduce your energy consumption and ...


    By ENER-G

  • Ultraviolet disinfection systems, the best solution to school swimming pools

    School swimming pools are a valuable asset, and are now present in the majority of high schools and higher education facilities throughout the UK.  Whilst school pools vary in size, shape and usage, many school swimming facilities are facing a common dilemma in their water disinfection strategy.  Existing treatment regimes are often badly designed, under sized or simply outdated, which ...


    By atg UV Technology

  • What makes an effective odor control cover system design?

    Background A common side effect of wastewater treatment processes is the unpleasant odor that can linger near the plant, annoying neighbors, who then complain. Often, the wastewater treatment plant was built many years ago in an isolated part of town.  Over the years, the town’s population grew until subdivisions were developed next to the treatment plant.   ...

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