Instrument required for a successful energy audit

An energy audit is a systematic analysis of energy use and consumption. It is important to map all major energy in an energy audit and identify the energy loss area and saving potential. For accurate and quantified identification of energy loss or estimation of saving potential, it is important to have some of the important instruments during an energy audit.

We have identified some of the important instrument required during energy audit :-

1. Temperature Indicator and Measurement device: Temperature indicators are the most important instrument to measure process temperature and heat losses. various temperature measurement devices is available to do this activity. we may broadly divide the temperature measurement activity into three measuring instruments :

a. Infrared non-contact type thermometer, for quick measurement of temperature, this type of thermometer can be used, with the development of technology the reliability of the infrared thermometer has improved.

infrared non contact type thermometer

b. Temperature indicator probe type: conventionally temperature indicator with a probe is used for accurately measure process temperature. along with data logger temperature indicators can be the most useful instrument for an energy audit.

Temperature indicator probe type

c. Thermal imager: Thermal imagers are costly devices and can be used to identify heat loss areas especially for insulation, surface loss, and electrical system.

Thermal Imager

2 Flue Gas Analyzer: Flue gas analyzer is another important instrument to measure the combustion efficiency of a boiler or furnace. carbon monoxide, carbon dioxide, and oxygen monitoring is important to identify loss due to incomplete combustion or excess air supply.

Flue gas analyzer

3 Steam Trap Tester/ Monitor: Steam is one of the major forms of energy being consumed in the process industry for various applications. The Generation, distribution, and consumption of steam must be in an efficient manner, for proper distribution and consumption of steam condensate must be removed as soon as it forms in the steam network. for removal of condensate, steam traps are used. Steam trap traps steam and removes condensate from the steam system. Failure of the steam trap may increase the loss of energy, therefore the steam trap must be checked periodically or during energy audit for proper functioning. Steam trap monitor help in identifying the condition of the steam trap.

Trap Tester

4 Conductivity,TDS & pH Meter: Conductivity or TDS meters are required for measuring the salt concentration of the boiler drum or cooling tower. with this meter, we can easily identify the operational gap in the boiler or cooling tower operation. pH meter helps to identify the acidity or alkalinity of water.

Conductivity & pH meter

5 Thermo hygrometer : It is used to measure humidity and temperature of the desired area, Thermo hydrometer is important for the study of HVAC system operation. This meter can also be used to calculate the dew point of the air.

Thermo hydrometer

6.Ultrasonic Flowmeter: flow measurement is required to measure flow for calculating pumping efficiency, With an ultrasonic flowmeter, the velocity of fluid can be measured without actual fluid contact by measuring the ultrasonic sound from the pipe surface of the moving fluid.

ultrasonic flowmeter

7 Digital Pressure Indicator: Digital pressure indicator is required to measure fluid pressure. It is important to measure the efficiency of the pump, air compressor, blower, fans, vacuum system etc. Digital pressure indication available nowadays can do precise measurements for both positive and negative pressure.

Digital pressure indicator

8. Manometers: manometer is an instrument for measuring the pressure acting on a column of fluid, it is commonly used to measure the draft pressure of the combustion system, flue gas path, fans, etc.

9 Pitot Tube: it is a flow measurement device used to measure fluid flow velocity, the most important use of pitot tube is for the measurement of duct air velocity.

Pitot tube meter

10 Anemometer: An anemometer is a device used for measuring wind speed and direction. It is commonly used to measure the velocity of the fan and calculate air flowrates.

Anemometer

11 Tacometer : Tachometer is used to measure speed of rotating equipment’s without contact.

Tacometer

12 Power analyzer: Power analyzer is a multi-function power analyzing device which is used to measure precisely direct current, alternating current, AC-voltage, DC-voltage the intensity of DC or AC, phase rotation, and idle, apparent and effective power.

Power analyser

13 Digital multimeter: A digital multimeter is a test tool used to measure two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms)

Digital multimeter

14 Harmonic Analyzer:  used to measure frequencies, amplitudes, different phases, and various components of a non-sinusoidal waveform, the harmonic study is important for carrying detailed power quality analysis.

Harmonic analyzer

15 Luxmeter: used for measurement of illumination level, for analyzing lighting requirement, it is important to measure illumination level at various hours of the day to check if the lighting is sufficient or some modification required.

lux meter

16 Ultrasonic leak detector : it is used to easily detect leak in compressed air or vacuum system.

ultrasonic leak detector

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