Temperature Profiler Articles on Environmental XPRT

How conditions affect cookies and air pollution control solutions

Chocolate chip cookies are one of my favorite treats. Butter, sugar, eggs, flour, vanilla, and, of course, chocolate chips. Combine the ingredients together and you get a delicious cookie. Somehow, using the same ingredients the cookies do not always turn out the same. Sometimes they are thinner and crispier. Other times, they are soft and chewy. After watching cooking shows, I have come to ...

Jun. 23, 2017

By Catalytic Products International (CPI)

Case study - Buoy-based temperature profiling in the Bavarian Lakes

In summertime a temperature stratification occurs in deep lakes – the surface water is warm, but deep down the water is cold. This has considerable influence on the nutrient balance and the biological habitat in these lakes. Due to generally higher air temperatures induced by the climate change, both change and have effects on the life conditions of the ecosystems in the lakes. ...

Jan. 18, 2017

By The OTT Hydromet Group

Experimental study of turbulence and vertical temperature profile in the urban boundary layer

We observed the turbulence and vertical profile of temperature in and above the roughness sublayer (RS) using a tower, a tethered balloon and a Doppler sodar in Himeji City. A 3–D ultrasonic anemometer–thermometer was sited at a height of 54 m on the tower. The present results showed that in the RS, the ratio of friction velocity to wind speed, u* /u, observed under unstable ...

Jun. 18, 2012

By Inderscience Publishers

What is an `IAQ Profile`?

The 'IAQ Profile' is a visual presentation of indoor air quality. PPM Technology's range of IAQ Monitors enable continuous monitoring of Indoor Air Quality; this precisely describes changes in concentration levels of selected air quality parameters over a period of time. The IAQ Profile provides the knowledgebase and database for improving indoor air quality efficiently and ...

Jul. 6, 2011

By PPM Technology

Transient Ceiling Jet Temperature and Velocity Profiles in the Presence of an Upper Layer: Comparison with Predictions by LAVENT and JET Computer Fire Models

Results of a scaled experimental study are compared with the predictions produced by the LAVENT and JET computer fire models. As in most large-scale fire testing, characterization of heat release rate (HRR) and accuracy of its measurement creates a lot of uncertainty for validation of these codes. Sensitivity of LAVENT results to the assumed radiative loss of 35% is examined by varying the total ...

Mar. 1, 2008

By SAGE Publications

Flow Profiling on Demand – Illuminating the reservoir with Silixa’s intelligent Distributed Acoustic Sensor (iDAS) and ULTIMA Distributed Temperature Sensor (DTS)

As energy demands increase rapidly, the goal of energy companies is to maximize ultimate recovery in an economically sound manner. One critical capability is the accurate measurement and monitoring of production from individual layers / perforated intervals in a multi-zone completion. This data allows operators to optimize zonal production, improve recovery, increase production per well and ...

Mar. 22, 2013

By Silixa Ltd

Ramah NM Project Profile 0409

Background The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter (mg/L). ...

Jun. 22, 2009

By Adedge Water Technologies, LLC

Pre-processing of meteorological data: vertical profiles

In the framework of COST-710, working group III aims to recommend formulations of atmospheric vertical profiles of wind, temperature and turbulence. This intermediate report gives a brief overview of existing methods to calculate vertical profiles. A short note on existing datasets for validation purposes is given.Keywords: atmospheric turbulence, turbulence time-, scale, vertical profiles, ...

Sep. 15, 2009

By Inderscience Publishers

Distribution of organic carbon in soil profile data

Soil organic carbon (SOC) content has been estimated at pan-European scale for the soil layer from 0 to a depth of 30 cm (Jones et al., 2005). The methodology used to generate the data layer relied on a combination of a pedo-transfer rule (PTR) and pedo-transfer functions (PTF). The PTR has been developed based on PTR No. 21 of the PTR database of the Soil Geographic Database of Eurasia (SGDBE). ...

Sep. 21, 2009

Supplier profile: Aeration Industries Int’l. Inc.

Pollution Engineering recently spoke with Aeration Industries co-founder and President Dan Durda. Mr. Durda co-founded the company, which celebrates its 30* anniversary this year, with his father, Joseph Durda, in Minneapolis, Minn. Known as the land of 10,000 lakes, a healthy fish population was very important to in-state residents. The company's first products were thus designed to reduce the ...

Feb. 1, 2004

By Aeration Industries International (AII)

Temperature evolution of an experimental salt-gradient solar pond

A salt-gradient solar pond is a low-cost, large-scale solar collector with integrated storage that can be used as a source of energy in low-grade-heat thermal desalination systems. This work presents the thermal evolution of an experimental solar pond for both the maturation and heat extraction time periods. The temperature profile was measured every 1.1 cm using a vertical high-resolution ...

Dec. 1, 2010

By IWA Publishing

Flatness and profile the problems that can exist in the design of the spray actuators

Flatness or shape control is one of the primary factors by which the quality of strip is measured; attention must therefore be paid to the work roll temperature and internal temperature distribuition if accpetable quality is to be ...

Apr. 10, 2007

By Lechler Inc.

Flatness and profile the problems that can exist in the design of the spray actuators 2

Flatness or shape control is one of the primary factors by which the quality of strip is measured; attention must therefore be paid to the work roll temperature and internal temperature distribuition if accpetable quality is to be achieved. ...

Jan. 25, 2006

By Lechler Inc.

Why high temperature combustion of landfill gas?

Due to the accumulation of knowledge and the tightening of environmental law, the landfill technology has increasingly become concerned with the management of trace compounds in landfill gas. With landfill gas, contamination is through sulphur, chlorine, fluorine, halogenated hydrocarbons and heavy metals. Other trace elements such as volatile organic compounds (VOC), impose environmental ...

Aug. 4, 2016

By Hofstetter BV

Hyperspectral thermal infrared line profiling for mapping surface mineralogy

Abstract An airborne hyperspectral thermal infrared line profiling spectrometer (TIPS) has been developed by CSIRO and Fugro Airborne Surveys to measure and map surface mineralogies. TIPS is a spectrometer based on an FTIR instrument, recording radiance channel in about 100 channels in the 8 mm to 13 mm wavelength range from contiguous 10 meter pixels along the flightline, at a nominal ...

Sep. 1, 2001

By D&P Instruments, Inc

Project profile - Ramah Pine Hill water system Ramah, New Mexico

Background The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter ...

Jul. 4, 2011

By Adedge Water Technologies, LLC

Profile: Factors that influence properties of FOG deposits and their formation in sewer collection systems

The quantification of the factors that may affect the formation of the fat, oil, and grease (FOG) deposits and their chemical and rheological properties were predominantly covered in the paper. The factors included the types of fats used in food service establishments (FSEs) and the types of calcium sources and environmental conditions (i.e. pH and temperature) in sewer systems. These factors are ...

Aug. 29, 2014

By IWA Publishing

The effect of surrounding temperature on liquefied petroleum gas behaviour during exhaustion process

Liquefied petroleum gas (LPG) is considered to be a cleaner fuel because it has less impact on air quality. However, the potential benefit of LPG usage in domestic or residential sectors in Malaysia is hampered by LPG residue in cylinder. A few critical factors, such as LPG composition, exhaustion rate and surrounding temperature, have been identified to significantly contribute to the LPG ...

Jun. 7, 2010

By Inderscience Publishers

A generalised mean temperature difference method for thermal design of heat exchangers

A Generalised Mean Temperature Difference (GMTD) method instead of the Logarithmic Mean Temperature Difference (LMTD) method for heat exchangers is proposed. Unlike the LMTD method, the GMTD method allows the performance analysis of heat exchangers with distributed physical properties. GMTD is calculated by a new method to take fluid temperature profiles as a function of heat load. Mathematical ...

Mar. 17, 2008

By Inderscience Publishers

Measurement of temperature gradients through local extinction using Raman scattering spectroscopy

Measurements of temperature in laminar flames with localised extinction points were made using line imaging of spectrally resolved laser Raman scattering through the extinction process. A fit to the nitrogen scattering spectrum was used to determine temperature with an accuracy of 30 K. Temperature gradients through the extinction process were measured as the flame strength prior to extinction ...

Apr. 4, 2007

By Inderscience Publishers

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