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Clean Energy Guide Flow Solutions

Sierra's Clean Energy Guide is a 40-page PDF downloadable guide that details how Sierra has partnered with customers from all over the world to develop sustainable solutions to some of today's most pressing environmental problems. From high performance flow measurement tools that help create biofuel from solid wastes to unlocking the carbon history in Antarctic ice to determine how much CO2 the ocean can digest, the Sierra Clean Energy Guide details a broad range of problem/solution scenarios.

Thank you for your interest. Download our free 40-page Clean Energy Guide now!


  • High Voltage Switchgear SF6 Maintenance
    Just like the main circuit breaker in your home, city grids have main on/off switches called switchgears. When these high voltage switchgears open or close, huge "lightning-like" arcs of electricity are created. If not maintained correctly, these...
  • Multipoint Systems Measure Flare Gases
    To mitigate greenhouse gas emissions, many companies reuse their biogas for cogeneration, but the amount of biogas produced often exceeds the amount needed for cogeneration. In such cases, it is often not economical to purify, compress and store...
  • Reducing the Cost of Emissions Testing
    In the early 1970¹s, the U.S. Environmental Protection Agency (EPA) was formed in response to growing concern about air quality. The EPA developed emissions regulations that targeted the carcinogenic impact of engine exhaust, and set tough...
  • Bringing New Efficiencies to Photovoltaics
    Solar photovoltaic installations now generate power in more than 100 countries and continue to be the fastest-growing type of electricity generation in the world. Due to the growing demand for renewable energy sources, manufacturing of solar cells...
  • Capturing Biogas from Landfills
    Each day, millions of tons of municipal solid wastes are disposed of in sanitary landfills and dump sites around the world. Over 1,200 landfills worldwide collect landfill gas, which reduces greenhouse gas emissions and accrues emissions credits to...
  • Mass Flow Controllers Give Pin Point Accuracy
    According to Dr. James Barry, a Benthic biologist and senior scientist at Monterey Bay Research Institue (MBARI), about a third of the human CO2 gas emissions in our atmosphere is absorbed by the ocean, making the ocean 30% more acidic than just 100...
  • Introducing Ozone to Water Purification
    Traditionally, chlorine has been used to disinfect water for drinking. Unfortunately, chlorine produces carcinogenic by-products called trihalomethanes (THM’s) when it reacts with organic substances in surface waters. The recent adoption of the...
  • District Heating Reduces Carbon Footprint
    District heating is a system for distributing heat generated from a centralized location for residential and commercial heating requirements. The heat is often obtained from a cogeneration plant that burns fossil fuels, but increasingly these plants...
  • Reducing Cost of Water Usage Analysis
    Large regional water companies, like California American Water Company, which services the central coast of California, have already invested in high performance flow measurement instrumentation to better understand its usage. Most Americans receive...
  • Generating Thermal Energy from the Sun
    With the rising cost of electricity from fossil fuels, solar thermal energy (STE) currently leads the way as the most cost-effective solar technology. Major solar thermal power industry players are striving to make the economics of solar power a...
  • Conforming to GHG Reporting Rules
    In 2011, a new EPA rule (40 CFR Part 98) went into effect requiring a wide range of companies that emit Green House Gases (GHG) to submit annual reports to the EPA. These were primarily large facilities emitting 25,000 metric tons of carbon...
  • Reducing the Threat of Carbon Soot
    The U.S. government now recognizes that black carbon soot is the number two cause of climate change and the most important component of air pollution affecting our public health. This soot, caused mainly by the burning of fossil fuels and firewood,...
  • Helping China Deliver Cleaner Coal Power
    To keep pace with the electricity demands of its rapidly growing economy, China’s coal-fired power plant construction is booming. Conscious of their environmental impact, China has focused on building efficient, low polluting plants. One...
  • Optimizing Air Flows to Aeration Basins
    As a result of clean energy mandates and the rising cost of energy, wastewater treatment facilities around the country are retrofitting their instrumentation to run highly efficient, cost-effective, clean facilities. To reduce emissions and produce...
  • Unlocking Carbon History in Antarctic Ice
    No greater challenge faces our planet right now than determining conclusively how we are impacting the environment and what can be done to arrest and reverse global warming. One important method for measuring the rising level of CO2 in earth’s...
  • Producing Biogas from Solid Wastes
    Santa Cruz Wastewater Treatment Facility, located in Santa Cruz, California, generates the majority of its own electric power by using internal combustion engines that burn a mixture of methane gas produced by the sewage digestion process and...
  • Smart Compressed Air Measurement
    Air may be free, but compressed air certainly isn’t. Every day, leaks and inefficient compressors cost companies money and lead to more electricity usage. As air  compressors churn away 24/7, endlessly maintaining the air pressure in...

  • Flowmeter Choice Affects Efficiency in WWTP
    Wastewater treatment plant operators increasingly, in today's competitive climate, have to meet mandates to fine tune their plant's performance efficiency. One way to do this and save thousands of dollars is to choose the right ...
  • Primary Standard Gas Flow Calibration Systems
    Introducing Sierra's broad line of CalTrak portable, primary standard gas flow calibration systems. The CalTrak line offers end-users fast, easy and accurate primary standard flow calibration systems for precise mass flow meter and controller...
  • How Thermal Mass Flow Meter Technology Works
    In this NEW video from Sierra, you’ll learn the operational principles of thermal dispersion mass flow technology. Industrial thermal mass flow meters, also known as thermal dispersion or immersible thermal mass flowmeters, comprise a family...
  • Flowmeter Re-Calibration Made Easy:
    Learn how Sierra's new management asset tool can make managing your mass flow meters and controllers for repair and recalibration fast and easy. Brenda Kibbee, Service Manager at Sierra Instruments, demonstrates the time-saving features of Sierra's...
  • How to Buy Industrial Flow Meters Online
    This Sierra Instruments video demonstrates how to easily order our in stock industrial mass flow meters online. We also show you all of the in stock mass flow meters and controllers available on Sierra's online store-all for 1 day delivery. The video...
  • How Capillary Thermal Mass Flow Meter Technology Works
    Learn the principles of operations of capillary thermal mass flow meter technology for mass flow measurement and control. Follow the molecule of gas through the pipe to learn the physics of directly measuring mass flow. Sierra offers...
  • Capillary Tube Thermal Mass Flow Meters & Controllers - A User's Guide
    This paper describes capillary tube mass flow meters and controllers for use in general purpose industrial and laboratory applications and in the fabrication of semiconductor devices. It provides a detailed description of the major components---flow...
  • QuadraTherm Sensor - Conquering the Problems
    Dr. Olin describes how all the problems that existed with Thermal Technology have been solved with the QuadraTherm sensor and qTherm algorithm set. The QuadraTherm sensor provides critical inputs to the qTherm algorithm to get highly accurate...
  • Invention of the Perfect Thermal Sensor
    In early 2012, inventor Dr. Olin at his home in Carmel Valley, California, tells his innovation story and how perfecting the immersible thermal sensor has been his life's work.  He explains his key breakthrough discoveries in developing the...
  • Relationship Between QuadraTherm Thermal Mass Flow Meter & Outside Temperature
    The secret to solving the first law of thermodynamics for thermal dispersion technology was revealed in the form of two revolutionary technologies—QuadraTherm® and qTherm® thermal mass flow meters, now both patented worldwide after...
  • qTherm Living, Learning Math
    Dr.Olin explains how the gas library gets better over time through math factors from the qTherm algorithm set. With qTherm technology, we can tune the math and develop the calibration curves within the qTherm brain.
  • Unlocking Accurate Flow Measurement
    When biogas composition changes too much, there are calibration challenges that must be addressed.
  • Biogas Is Blooming
    A trend towards higher natural gas prices, coupled with the demand for renewable energy, is creating strong demand for the equipment to upgrade raw biogas to purified biomethane, as gasworld discovers.
  • Biogas Measurement Devices
    As global oil prices remain high, countries around the globe are seeking renewable energy sources to increase energy efficiency and security. Among the sources of renewable energy is the production of biogas from...
  • Advanced Thermal Dispersion Mass Flowmeters
    Thermal dispersion (TD) mass flowmeters measure the mass flowrate of fluids (primarily gases) flowing through a closed conduit, such as a pipe. This article describes the operation and installation of TD mass flowmeters, and gives the reader...
  • Ultrasonic Flowmeter Improves Water-loss
    In 2008, after experiencing two years of drought and the driest spring in recorded history, water reserves in California were desperately low.Carmel Riviera, which serves up to 600 residents living along California’s Big Sur Coast, made the...
  • Surviving GHG
    In 2011, a new rule from the Environmental Protection Agency (EPA) (40 CFR Part 98) will go into effect requiring certain fossil fuel suppliers, industrial gas suppliers, manufacturers of vehicles and engines outside of the light-duty sector and...
  • Measuring Engine Soot In Real-Time
    Sierra Instruments has partnered with Process Metrix to introduce real-time engine soot mass technology to the engine emissions industry. With five years of development and several patents pending, combined with field results in other emissions...
  • Harnessing Biogas for Energy Savings
    For Santa Cruz Wastewater Treatment Facility (WWTF), dependability matters. Since 1989, this state-of-the-art WWTF, nestled in a shallow canyon in the coastal city of Santa Cruz...
  • Better Combustion Airflow Monitoring...
    China has experienced tremendous growth in electricity demand over the past two decades. Coal-fired plant construction has exploded in the country to meet its seemingly insatiable appetite for electricity. Because most power plants in China use coal...
  • A Market Prime for Boom
    Among the established flow measurement technologies, thermal flowmeters account for fewer units shipped than any other flow technology except for target meters. In perspective, thermal flowmeters, at a market size of under $100 million, represent...
  • Examining How CO2 Affects Marine Life
    The Monterey Bay Research Institute (MBARI) sits on one of the most spectacular coastlines in California with Big Sur to the South and Santa Cruz to the North. But beneath this beauty the Monterey Bay and our oceans are changing rapidly due to the...
  • Compressed Air Energy Savings
    In this era of rising energy costs and global competitiveness, compressed air waste in facilities can be a major financial drain to the bottom line. Air may be free, but compressed air certainly isn’t. According to Cary Carlisle, an expert...
  • Re-Energizing California
    Sierra is hard at work in the geothermal steam fields of the West where rugged reliability matters. In energy-strapped California, one emerging technology is using the natural geothermal reservoirs in certain areas as a source of steam that is then...
  • Geothermal Plant Improves Efficiency
    Since the dawn of humankind, geothermal resources have been used for healing and physical therapy, cooking, and heating. In modern times, the use of geothermal energy for the production of electricity commenced in 1904 when Prince Piero Ginori Conti...
  • Testing For Emissions Era Engines
    Sierra Instruments’ Emissions Division, Monterey, Calif., has introduced the model BG-3 with transient dilution airflow control (TDAC), a partial flow sampling system (PFSS) designed to provide accurate, repeatable PM measurements for transient...
  • Thermal Dispersion Mass Flow Meters
    Thermal dispersion mass flowmeters comprise a family of instruments for the measurement of the total mass flow rate of a fluid, primarily gases, flowing through closed conduits.  The operation of the thermal dispersion mass flowmeters is...
  • Core Technology: Multivariable Vortex
    Vortex shedding flow meters have been in use for many years. The typical device is a flanged in-line unit. Most vortex meters measure only one variable (the velocity of the flowing fluid). Effectively, this makes the typical vortex meter a volumetric...
  • Evolution of Thermal Mass Flow Meters
    John Olin, founder and CEO of Sierra Instruments, Inc., in Monterey, California, provides a historical perspective on the development of thermal mass flow. Thermo-Systems, Inc. (TSI) began in its founder’s basement in 1959, with a cooled-film...
  • Power Industry Applications
    Precise, timely measurement of air, fuel, and gases is one way today's utilities can take action to protect themselves against rising costs and comply with increasingly stringent environmental requirements. Sierra thermal mass flow meters and control...
  • Core Technology: Capillary & Immersible
    For gas mass flow measurement and control, Sierra offers the broadest selection of thermal mass flow measurement products on the market. This is because our thermal mass flow products incorporate two types of advanced thermal technologies, each...
  • Industrial Ultrasonic Flow Measurement Advancements for the Transit-Time Industry
    Since the introduction of transit-time ultrasonicflow meters manufacturers have continually improved their measurement and signal processing capabilities. Advances in digital correlation transit-time technology now allow customers to use a...
  • Sierra Announces Never Before Possible Accuracy For Thermal Dispersion Technology
    Monterey, CA — November 1, 2012 — Sierra Instruments today introduces their new QuadraTherm® 640i / 780i Thermal Mass Flow Meter Series, marking a disruptive breakthrough in thermal dispersion technology. With its sensor design...
  • New Clean Energy Guide From Sierra
    Monterey, CA — January 17, 2011 —Sierra Instruments, a leading global mass flow instrument manufacturer, announces the publication of its new free 40-page Sierra Clean Energy Guide in printed format. The guide offers engineers, scientist,...
  • QuadraTherm┬« 780i Inline Mass Flow Meter
    QuadraTherm® 780i Inline Mass Flow Meter Offers Higher Performance
  • QuadraTherm┬« 640i Air Mass Flow Meter
    Industry's Most Accurate Thermal Mass Flow Meters
  • BG3 Partial Flow Dilution
    BG3 Partial Flow Dilution
  • InnovaSonic 205i Ultrasonic Flow Meter
    Precision Results with InnovaSonic 205i Transit-Time Ultrasonic Liquid Flow Meter
  • FastFlo 620S Mass Flowmeter
    High-Performance Air Flow Sensors for Industrial Gas Mass Measurement
  • SteelMass 640S
    Insertion,Totalizing Meter Application
  • InnovaMass 241 VTP
    Insertion Multivariable Mass Flow Meter
  • SmartTrak 100 Mass Flow Meters & Controllers
    Premium Digital Mass Flow Meters
  • BoilerTrak 620S BT
    Thermal Mass Flow Meter Increases Boiler & Heater Efficiency
  • TopTrak 822/824 Mass Flow Meters
    Economical Analog Mass Flow Meters
  • MultiTrak 670S
    Large Duct and Stack High-Performance Multi-Point Mass Flow
  • FlatTrak 780S
    Inline Mass Flow Meter with Flow Condition
  • InnovaMass 240 VTP
    In-line Multivariable Mass Vortex Flow Meter
  • InnovaSonic 205i Insertion Ultrasonic Flow Meter
    Perfect Choice Even for High-Viscosity Liquid Measurement Applications