humidity temperature indicator Articles

  • 5 Reasons to Use WiFi Temperature/Humidity Monitoring

    Low-Cost Wireless Data Loggers Protect Your Inventory As wireless monitoring and alarming is becoming even more widespread and affordable, many supply and cold chain companies are turning to WiFi-capable devices to monitor their inventories for temperature and humidity. Now CAS DataLoggers can help you save on costs and time ...


    By CAS DATALOGGERS

  • Intellisenc Greenhouse Controllers for control of CO2, Humidity and temperature

    Optimum and accurate CO2 level is important for effective and efficient plant growing. Too much CO2 creates diminishing return on expense and too little fails to utilize your capital investment. Optimum control of all facets of the growing environment results in high productivity at less costs. Plants need to be able to shed moisture to maintain their capacity to draw in nutrients from the soil. ...


  • Do you need to monitor temperature and humidity in controlled environments?

    Look no further. This compact and easy-to-use instrument is ideal for constant monitoring of temperature and humidity measurements in environments where a record of data for traceability is required. It is ideal for use in medical product storage facilities, warehousing and distribution, containers, industrial processes, laboratory environments, museums, and classrooms. With a ...


    By ATP Instrumentation Ltd

  • Wind Energy Production Estimates: Moving Beyond Time Averages

    No need to be a statistician to see that averages are often useful to compare different things. And yet, they often fall short as a true measure of performance. For instance, we use averages to compare the current weather against the climate normals or to get a sense of how our favorite sport team or player is doing. Team (player) statistics are a concise way of combining the scores from many ...


    By AWS Truepower, LLC

  • Chilling injury as an indicator of critical temperature for cold storage of guava (Psidium guajava L.) cv. Allahabad Safeda

    The critical temperature for cold storage of guava cutivar Allahabad Safeda and the changes in physico-chemical attributes during its storage were studied. Fruits were stored at 5, 8 and 15° C with 85–90% relative humidity and withdrawn weekly from cold storage and kept at ambient condition (18–20° C and 65–70% RH) for analysis. Chilling Injury (CI) symptoms, characterised by browning of peel, ...


    By Inderscience Publishers

  • Intellisenc Building Air Quality Controllers control CO2, CO, VOC, O3, Humidity and temerpature.

    The quality of the air we breathe indoor (Indoor Air Quality, IAQ) is typically defined by the air chemical or gas composition and particulates. The sensors available today for sensing the gas composition of IAQ have many features and options. There is a wide application base for IAQ sensing with the most common being the regulation of HVAC ventilation systems for lower energy cost. Using an IAQ ...


  • Why does the market need a new Phosgene indicator badge?

    Usage of Phosgene Phosgene (COCl2) is a non combustible but very toxic gas. It is a raw material for plastics like Polycarbonates (i. e. Macrolon) or Polyurethanes. Monitoring of Phosgene Plants using or manufacturing Phosgene of course underlay strict safety regulations. Therefore they are equipped with portable and fixed gas detectors for Phosgene. While ...

  • Stability and accuracy of CIRAS-2 Water Vapor (reference humidity): control option 1

    Summary Rapid large-scale fluctuations of carbon dioxide and water vapor, although unnatural and artificial in the plant world, are desirable attributes for gas exchange systems from a sampling efficiency standpoint. As PP Systems’ benchmark IRGA system for gas exchange and photosynthesis research, CIRAS-2 was designed for and expected to have exceptional response times to ...


    By PP Systems

  • Effective Temperature Control for Cement Kiln Off-Gases

    INTRODUCTIONEffective off-gas temperature control without unwanted side effects can be achieved in many cement plants with state-of-the-art evaporative spray technology. Gas temperatures have elevated in recent years from as low as 180°C to over 370°C. This is coincident with a higher proportion of 'dry' operation kilns. Evaporative cooling water sprays in conditioning towers, ducts or at the ...


  • Differential Pressure and Temperature Monitoring in a Hospital Cleanroom

    Accsense A1-01a Wireless Environmental Data Loggers CHESTERLAND OH—April 9, 2012 CAS DataLoggers recently provided the wireless pressure and temperature monitoring solution for a hospital maintaining a surgery cleanroom to protect patients from a variety of environmental contaminants. Staff entered and exited through airlocks and were required to wear cleanroom suits before entering. Air ...


    By CAS DATALOGGERS

  • Soil degradation, landscape and climate variations in a Mediterranean agro–forest system (Thriasio, Greece): proposal for a desertification indicator using time series analysis

    As a contribution to soil degradation and desertification monitoring in the northern Mediterranean basin, the present study investigates long–term climate variations in the traditional agro–forest system of Thriasio Plain (Greece) by examining month average temperature, precipitation, relative humidity, Standardised Precipitation Index (SPI) and de Martonne index time series between 1958 and ...


    By Inderscience Publishers

  • Effects of air pollution and meteorological parameters on human health in the city of Athens, Greece

    The impact of air pollution (CO, NO, NO2, SO2, O3) and meteorological parameters (air temperature, humidity and atmospheric pressure) on three indicators of human morbidity (circulatory, respiratory and skin diseases) is quantified, while the sensitivity of the results to different model specifications is tested. Findings indicate that higher SO2 and CO levels significantly increase circulatory ...


    By Inderscience Publishers

  • Monitoring of soil fertility

    Background In agriculture and forestry soil fertility is a decisive factor for the economic use of fields and forests. Various factors, considered as a whole are the indicators which characterize the soil fertility. Important parameters are e.g.: Intensity of precipitation, air temperature, air humidity, soil humidity, suction power and soil temperature in various depths. ...

  • Energy and exergy analysis of reverse Brayton refrigerator for Gas Turbine power boosting

    In this study the use of Reverse Brayton cycle to boost up the power of gas turbine power plants operating in hot humid ambiance is analysed by the energy and exergy methods. The gas turbine inlet temperature is reduced by mixing the chilled air from Brayton refrigeration cycle and the main intake air stream reaching low intake temperatures. In this paper the effect of irreversibilities in the ...


    By Inderscience Publishers

  • Case Study: Singapore Airlines

    Ellis was contacted after a client had several complaints from employees related to air quality. Ellis conducted exposure monitoring for CO2 and CO, and also took measurements of temperature and relative humidity. Results of the study showed CO2 and CO to be well under the PEL (Permissible Exposure Level) for those two gases. However, elevated temperatures occurring later in the day appears to ...

  • Thermodynamics of climate change

    Climate modelling is discussed from a thermodynamic point of view, using a control volume approach in which the environment and a superficial layer of the earth form the volume, concentric spherical shell of predominantly gaseous content with a thin layer of the earth. An energy equation that includes anthropogenic heat is suggested based on the mass balance of fossil fuel introduced into the ...


    By Inderscience Publishers

  • Survey of Airborne Bacterial Genus at a University Campus

    Indoor airborne bacterial concentrations were measured at different locations in a university campus in Hong Kong where there was a Mechanical Ventilation and Air-conditioning (MVAC) system. Total bacterial counts were enumerated for both indoor and outdoor areas at specific time intervals. Information on temperature, relative humidity, number of occupants, and carbon dioxide levels were recorded ...


    By SAGE Publications

  • NO x emission model of turbofan engine

    During last decade a lot of investigations also focused on the evaluation of aircraft engine impact on local and regional air quality in the vicinity of the airport. The emission inventory of aircraft engines are usually calculated on the basis of certificated emission indexes, which is provided by the engine manufacturer and reported in the database of ICAO. The certificated emission indices ...


    By Inderscience Publishers

  • Comparative investigation of artificial neural network learning algorithms for modeling solar still production

    Three artificial neural network learning algorithms were utilized to forecast the productivity (MD) of a solar still operating in a hyper-arid environment. The learning algorithms were the Levenberg–Marquardt (LM), the conjugate gradient backpropagation with Fletcher–Reeves restarts, and the resilient backpropagation. The Julian day, ambient air temperature, relative humidity, wind speed, ...


    By IWA Publishing

  • A comparative study of prognostic MM5 meteorological modeling with aircraft, wind profiler, lidar, tethered balloon and RASS data over Philadelphia during a 1999 summer episode

    This study presents a comparative evaluation of the prognostic meteorological Fifth Generation NCAR Pennsylvania State University Mesoscale Model (MM5) using data from the Northeast Oxidant and Particle Study (NE-OPS) research program collected over Philadelphia, PA during a summer episode in 1999. A set of model simulations utilizing a nested grid of 36 km, 12 km and 4 km horizontal resolutions ...


    By Springer

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