energy efficiency control system Articles

  • Reverse Osmosis and Nanofiltration Membrane Filtration Systems: Common Problems and How to Fix Them

    Reverse osmosis (RO) and nanofiltration (NF) are membrane filtration technologies that are designed to remove solute ions and molecules from a pretreated liquid stream. Well-designed RO/NF units are compact and demand relatively little maintenance, making them an attractive alternative to conventional treatment trains. Even despite the merits of today’s efficient RO/NF technologies, it pays ...


    By SAMCO Technologies, Inc.

  • RTO upgrade sees significant benefits - Case Study

    A project this year to upgrade an existing RTO has been successfully completed in four areas: Increasing thermal efficiency by adding additional layers of ceramic honeycomb media into the RTO this has the benefits of energy reduction from lower gas consumption both during production & on standby. De-commissioning an old inefficient recuperative oxidiser which was attached to a single ...


    By AirProtekt Limited

  • Modified Sine Wave Inverters vs Pure Sine Wave Inverters

    Most everyday appliances and commercial tools run on AC power. This is fine if you’re connecting the device to a wall outlet that provides AC power. But what if you want to use power from a DC source, like a solar-powered generator or a car battery? In such cases, individuals need to use an inverter – a device that converts DC power to AC power. There are several types of ...


    By Larson Electronics LLC

  • May the Force be energy efficient

    It was hard to get excited about IBM’s Watson http://www-03.ibm.com/innovation/us/watson/ besting two humans in the TV game show Jeopardy and walking away with a $1 million prize last month. After all, thanks to the entertainment industry, we’ve seen robots and computers win in all kinds of ways, from HAL duping the smart ...

  • Efficient aeration system boosts energy savings

    A new efficient aeration system saves the Ontario, Ore., wastewater treatment facility $47,000 annually in energy costs. Besides giving this community a financial boost, the new system netted additional equipment cost savings by cutting aeration horsepower by more than half at the plant. The environmentally conscious city, located in the Oregon/Idaho border area, is meeting all of its effluent ...

  • Energy Efficiency prospects: What to watch

    Events unfolding in two US Northeast states – New York and Massachusetts – signal increased business opportunity for energy efficiency companies, green architects, lighting contractors, smart grid innovators and others in the business of saving energy. First, the energy efficiency world should keep an eye on debate over the possible shutdown of the Indian Point nuclear power plant in ...

  • How to make energy efficiency affordable

    Energy efficiency is a tortoise in the green energy race. Not glamorous like solar, wind or smart grid, it tends to plod along in the back of the pack, attracting little media attention. But being last can be a good thing; you learn from the frontrunners. Such is the case when it comes to financing. EE is beginning to borrow from strategies that have spurred tremendous growth for solar and other ...

  • Where to find jobs in energy efficiency

    Here’s something you don’t hear people complain about much these days: worker shortages.  That is, unless you’re in energy efficiency, an industry that is booming as others are busting. Sixty percent of those responding to a recent survey by theAssociation of Energy Services Professionals cited a lack of talented workers in ...


    By Energy Efficiency Markets

  • Improving energy efficiency with an intelligent remote energy management system

    With the growing demand for energy efficiency solutions to contend rising energy costs, many technologies have become available in the market today. However, without intelligent and continuous energy data measurements, which can be analysed for strategic energy planning, carbon emissions, energy efficiency, reliability and electric costs, the maximising of overall savings is much more difficult ...


    By PowerSines Ltd.

  • China’s booming energy efficiency industry

    China’s energy efficiency industry is emerging as a high growth sector with the country projected to spend as much as Rmb2.1 trillion (USD300 billion) over the next five years on products and services that cut energy use. The key drivers of this development are the Chinese government’s determination to curb the country’s expanding energy appetite as well as higher production and energy costs. ...

  • 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 ...


  • Efficiency improvement of a photovoltaic system by acting on the characteristics of MPPT control

    A 360 W photovoltaic (PV) module power with a maximum power point tracking (MPPT) algorithm is analysed and presented. In this study, the control algorithm is improved and then applied to the PV system. The results obtained show the ability of this algorithm to control high powers when weather conditions are changing. Under the same conditions, this improved technique offers, in steady state ...


    By Inderscience Publishers

  • Advances in efficiency optimisation control of electrical servo drive

    The development of legislative acts in the world in favour of environmental protection requires the reversion of electrical drives' specifications. Indeed, the efficiency of electrical systems has become a crucial goal in the design of control systems (Farhani et al., 2012). In this perspective, this paper proposes a new control strategy of the association of the asynchronous machine and its ...


    By Inderscience Publishers

  • Energy-sensitive control strategies for decoupled production systems

    Rising demand for energy caused by emerging economies, decreasing oil stocks, and the intended nuclear phase-out in some industrial countries has led to new problems concerning sufficient and on time energy supply. Since availability of energy has a dramatic influence on production, energy has to be considered a process prerequisite instead of a production-related overhead topic, as usually ...


    By Inderscience Publishers

  • Case study - Coater replaces old oxidizers With energy efficient systems

    Overview Emission control and the operating costs associated with meeting environmental regulations were nothing new for the Coated Products Division of Brady Corp. The company has been manufacturing coated films for nearly 60 years, demonstrating over that time a commitment to pollution prevention and emission reduction programs. But these considerations were magnified ...

  • Energy efficiency waste extraction upgrade against the clock

    When Impacts project team were challenged with the gauntlet of replacing a twin extraction system at Greenshires in a 24-hour shutdown they knew they had a challenge. After many years of suffering unreliability of an environmentally unfriendly waste system, Greenshires - Leicester, had no option but to replace it with the latest extraction system solutions. Impact Air Systems were called to the ...


    By Impact Air Systems

  • Improving energy efficiency: About oil fouling in refrigeration systems

    Introduction Most air conditioning and refrigeration systems have a mechanical compressor which relies upon lubricating oil to function. During the normal course of the refrigeration process, ½% to 8% of the compressor’s lubricating oil is circulated throughout the system along with the refrigerant. Since the early days of refrigeration and air conditioning technology, the ...


    By Power Knot LLC

  • Using your EMS to improve energy efficiency

    Why an EMS Approach? With increased pressure to address energy and climate change issues, many organizations are leveraging their environmental management system (EMS) as an important mechanism for implementing energy efficiency initiatives. This phenomenon is not entirely new. The EMS approach has frequently been used across a broad array of sectors to facilitate energy improvements. But ...


    By Trinity Consultants

  • 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

  • Case study - Multi-tenant building energy efficiency

    Buildings accounted for roughly 40% of total U.S. energy consumption in 2010, according to the United States Energy Information Association. “[New York] City's roughly 1 million buildings cost $15 billion a year to power and heat and account for 80% of the city's greenhouse gas emissions”(1). The proliferation of smart energy devices and building management systems will result in the ...


    By Powerhouse Dynamics

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