Far Ultraviolet Germicidal Irradiation (...

Far-UVC Ultraviolet Germicidal Irradiation (UVGI)What do you...

Understanding the Psychrometric Chart

Although engineers and technicians need to know how the valu...

ASNZS 5149 Refrigerant Charge Limit Calc...

Use this AS/NZS 5149 refrigerant charge limit calculator to ...

Connecting a 50hz induction motor and ru...

What happens if connecting a 50hz induction motor to 60hz po...

Vibration calculator

Vibration CalculatorUse this vibration calculator to estimat...

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Disclaimer: The below is provided for general information an...

Design, construction and fit-out of food...

Practical Guide for Western Australian Food PremisesDesignin...

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Lesson learnt from Year 7 maths: when is 1 + 1 = 10?At first...

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A chiller controls its capacity mainly by maintaining the le...

What is Boiling

The first step to understanding how the air conditioning ref...

Room Noise Predictor From AHU to Diffuse...

Use this room noise predictor to estimate the expected noise...

How to verify the percentage of outside ...

Use this outside air percentage calculator to estimate how m...

The Refrigeration Gauges

Let’s examine the refrigeration pressure gauge: this i...

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Before we get ahead of ourselves, R22 will phase out in Aust...

UN SDGs, good intentions, wrong priority...

The United Nations Sustainable Development Goals (UN SDGs), ...

Why Your High Efficient Condensing Boile...

Now that you have installed the high-efficiency condensing b...

Ground Source Heat Pump Size Estimator

Use this ground source heat pump size estimator to assess pr...

Is Water a Good Refrigerant

Let’s remind ourselves of these two basic rules:There ...

Psychrometric calculator

Use this free HVAC Psychrometric Calculator to calculate moi...

HVAC calculators and Estimators

Free HVAC calculators and estimators for cooling, heating, a...

What is P, PI & PID controls

  An open loop system operates without feedback, i...

AS 1668.2 2012 Car Park Exhaust Calculat...

Use this calculator to calculate the minimum exhaust airflow...

Personal Air Coolers

I reckon many personal air coolers are more marketing than e...

Stair pressurisation system

Stair pressurisation systemDoor average area: 2.1m2Design nu...

So What is New in Refrigerant?

From CFCs to HFOs, how Refrigerant Policy Evolved from Ozone...

The Refrigeration Gauges

Let’s examine the refrigeration pressure gauge: this i...

Refrigeration Cycles

As its name indicates, it’s in the evaporator that the...

How to Size a Chiller

Sizing a chiller is more than selecting a machine with the s...

Predictive Maintenance and Condition Mon...

So, what is predictive maintenance? How do you use condition...

Solar Absorption Chiller Sizing Calculat...

Use this calculator to estimate solar collector area, storag...

Filters energy use

Filter True Cost CalculatorThe Filter True Cost Calculator i...

Lesson learnt from Year 7 maths, when is...

Lesson learnt from Year 7 maths: when is 1 + 1 = 10?At first...

AS 1668.2 Kitchen Exhaust Calculator

Use this AS 1668.2 kitchen exhaust calculator to estimate mi...

How Does Refrigerant Work in Refrigerati...

Here are some typical operating conditions. As pressures dif...

Why Your High Efficient Condensing Boile...

Now that you have installed the high-efficiency condensing b...

Duct Heat Gain and R-Value Insulation Ca...

Use this calculator to estimate duct heat gain as a percenta...

Laboratory Airflow Control Devices Air V...

Understanding the Psychrometric Chart

Although engineers and technicians need to know how the valu...

Water Cooled Chiller Sizing Calculator

Use this water-cooled chiller sizing calculator to estimate ...

How reciprocating compressors work in ai...

The reciprocating compressors (piston compressors or recip c...

Connecting a 50hz induction motor and ru...

What happens if connecting a 50hz induction motor to 60hz po...

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Use this generator room ventilation calculator to estimate t...

Design, construction and fit-out of food...

Practical Guide for Western Australian Food PremisesDesignin...

Geospatial 3D Point Cloud Laser Scanning

Geospatial 3D point cloud laser scanning is a method of capt...

AS 1668.2 bathroom and toilet exhaust ve...

Use this AS 1668.2 bathroom and toilet exhaust ventilation c...

Dehumidified IEC System

TOTAL DEHUMIDIFIED IEC

Room Pressurisation Leakage and Fan Airf...

Use this calculator to estimate the airflow required to main...

Indirect Evaporative Cooling-The Univers...

In 2011, we were tasked to resolve the HVAC system design fo...

Energy conservation with comfort

You may already be aware of the rising cost of energy and th...

Lesson learnt from Year 7 maths, when is...

Lesson learnt from Year 7 maths: when is 1 + 1 = 10?At first...

What is Thermal Expansion Valve (TX Valv...

All air conditioning refrigeration circuits have expansion d...

Small in Window Air Conditioner Units In...

As its name suggests, unitary window air conditioners consis...

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Conflict of Air Tightness Buildings and ...

Conflict of Air Tightness Buildings and Fire SafetyModern bu...

Legacy AHU Supply air fan speed control ...

Legacy Supply Air Fan Speed Control, A Smarter Way to Save E...

Refrigeration Cycle P-H Diagram Calculat...

Use this free HVAC Refrigeration P-H Diagram Calculator to b...

What is Coanda Effect

What is coanda effect?    How does coand...

AS 1668.2 Kitchen Exhaust Calculator

Use this AS 1668.2 kitchen exhaust calculator to estimate mi...

What is Boiling

The first step to understanding how the air conditioning ref...

The Evaporation of R22

Let’s take a cylinder of R22 at an ambient temperature...

Maisotsenko Cycle

Fabric Duct Sizing Calculator

Use this fabric duct calculator to estimate the duct size of...

AS 1668.2 bathroom and toilet exhaust ve...

Use this AS 1668.2 bathroom and toilet exhaust ventilation c...

Indoor pool and wellness centre

Use this indoor pool and wellness centre calculator to estim...

HVAC calculators and Estimators

Free HVAC calculators and estimators for cooling, heating, a...

Connecting a 50hz induction motor and ru...

What happens if connecting a 50hz induction motor to 60hz po...

Passive House (Haus) Designs, Heat Recov...

The rise of Passive House design has fundamentally reshaped ...

Duct Heat Gain and R-Value Insulation Ca...

Use this calculator to estimate duct heat gain as a percenta...

Chiller System Designs Mistakes

Chilled water systems can become inefficient, unstable or ex...

Average Person Sensible and Latent Heat ...

Use this calculator to estimate the sensible and latent heat...

Emergency Warning and Intercommunication...

Gas Detectors-Ammonia Refrigerant

Is Water a Good Refrigerant

Let’s remind ourselves of these two basic rules:There ...

AS1668.2 Exhaust Air Requirements

AS1668.2 Exhaust Air RequirementsEnclosure typeQuantityUnitC...

Air and human comfort

Space explorations to the moon, other planets, and beyond ha...

ASNZS 60079.10 Hazardous Area Ventilatio...

Use this to calculate hazardous atmosphere ventilation rate ...

What is Condenser in Air Conditioning Sy...

The air-cooled condenser is a heat exchanger. What is the fu...

Cooling Coil Bypass Factor Calculator

Use this calculator to estimate cooling coil bypass factor u...

Vibration calculator

Vibration CalculatorUse this vibration calculator to estimat...

What consultants must learn from Lacross...

Disclaimer: The below is provided for general information an...

HVAC calculators and Estimators

Free HVAC calculators and estimators for cooling, heating, a...

Dehumidified IEC System

TOTAL DEHUMIDIFIED IEC

Natural Ventilation Designs

 https://www.monodraught.com/https://greenhome.osu.edu/...

The Evaporation of R22

Let’s take a cylinder of R22 at an ambient temperature...

How to calculate room pressurisation

Use this room pressurisation calculator to estimate the airf...

Split System Air Conditioners Installati...

The split system air conditioner has two parts: the indoor a...

How to Size U-Trap - AS/NZS 3666.1

Why is u-trap important and how to size an u-trap for air ha...

Chiller Sizing Example

This worked example shows how to size a chiller for a commer...

Far Ultraviolet Germicidal Irradiation (...

Far-UVC Ultraviolet Germicidal Irradiation (UVGI)What do you...

Solar Absorption Chiller Sizing Calculat...

Use this calculator to estimate solar collector area, storag...

Conflict of Air Tightness Buildings and ...

Conflict of Air Tightness Buildings and Fire SafetyModern bu...

What is Thermal Expansion Valve (TX Valv...

All air conditioning refrigeration circuits have expansion d...

Design, construction and fit-out of food...

Practical Guide for Western Australian Food PremisesDesignin...

Wet bulb depression efficiency-evaporati...

For those who have been to Malaysia, the first thing you eve...

Fire rated sealants

Fire-rated sealants are required where services, pipes, duct...

AS 1668.2 Mechanical Exhaust Ventilation...

Use this AS 1668.2 mechanical exhaust ventilation rate look-...

Chiller System Designs Checklist

Before finalising the chiller selection, review the followin...

Is Water a Good Refrigerant

Let’s remind ourselves of these two basic rules:There ...

Filters energy use

Filter True Cost CalculatorThe Filter True Cost Calculator i...

Indirect Evaporative Cooling-The Univers...

In 2011, we were tasked to resolve the HVAC system design fo...

AS 1668.2 Kitchen Exhaust Calculator

Use this AS 1668.2 kitchen exhaust calculator to estimate mi...

Maisotsenko Cycle

So What is New in Refrigerant?

From CFCs to HFOs, how Refrigerant Policy Evolved from Ozone...

What do you want from your BMS 1/3

Fresh out of uni back in the days, sitting on some cement ba...

Primary-Secondary Pumping, Flow, Mixing,...

Use this primary-secondary pumping calculator to check how f...

What do you want from your BMS 3/3

What do you want from your BMS. Part 3: Direct Expansion Eva...

What is P, PI & PID controls

  An open loop system operates without feedback, i...

How to size buffer tank

Buffer tank sizing is not an arbitrary exercise. Typical gui...

Connecting a 50hz induction motor and ru...

What happens if connecting a 50hz induction motor to 60hz po...

Cooling Coil Bypass Factor Calculator

Use this calculator to estimate cooling coil bypass factor u...

Carpark exhaust control

How to Size a Chiller

Sizing a chiller is more than selecting a machine with the s...

What is Refrigeration and Air Conditioni...

Are you looking to learn and take an air conditioning course...

The Evaporation of R22

Let’s take a cylinder of R22 at an ambient temperature...

Solar PV Air Conditioner Sizing

Use this calculator to calculate how many solar panels are r...

Natural Ventilation FAQ

Natural ventilation can be an effective way to provide outdo...

AS 1668.2 bathroom and toilet exhaust ve...

Use this AS 1668.2 bathroom and toilet exhaust ventilation c...

ASNZS 60079.10 Hazardous Area Ventilatio...

Use this to calculate hazardous atmosphere ventilation rate ...

Refrigerant Pipe Sizings

Refrigerant pipe sizingsSuction line velocity: 4.5m/s to max...

Removing Mould and Mould Stains

Removing Mouldconcrobium.com/en-au/Walk into Bunnings or har...

Emergency Warning and Intercommunication...

Energy conservation with comfort

You may already be aware of the rising cost of energy and th...

What is Condenser in Air Conditioning Sy...

The air-cooled condenser is a heat exchanger. What is the fu...

Connecting a 50hz induction motor and ru...

What happens if connecting a 50hz induction motor to 60hz po...

Air conditioning back to basic principle...

Air conditioning basic principlesThe basis for air condition...

What is Refrigeration and Air Conditioni...

Are you looking to learn and take an air conditioning course...

Engineering innovation, is creativity th...

Engineering is often seen as a discipline of rules, standard...

Wet bulb depression efficiency-evaporati...

For those who have been to Malaysia, the first thing you eve...

How to size buffer tank

Buffer tank sizing is not an arbitrary exercise. Typical gui...

UN SDGs, good intentions, wrong priority...

The United Nations Sustainable Development Goals (UN SDGs), ...

Indirect Evaporative Cooling-The Univers...

In 2011, we were tasked to resolve the HVAC system design fo...

Water use by cooling towers

Use this cooling tower water use calculator to estimate the ...

HVAC Duct Sizing Calculator

Use this calculator to calculate HVAC duct sizes using equal...

Generator Room Ventilations

Use this generator room ventilation calculator to estimate t...

Cost Saving Electronically Commutated (E...

One of the common reasons to adopt electronically commutated...

So What is New in Refrigerant?

From CFCs to HFOs, how Refrigerant Policy Evolved from Ozone...

Lesson learnt from Year 7 maths, when is...

Lesson learnt from Year 7 maths: when is 1 + 1 = 10?At first...

Chiller System Designs Mistakes

Chilled water systems can become inefficient, unstable or ex...

How Do Air Conditioners Work

The principal role of air conditioning is to maintain a comf...

Calculate Fan Motor Power

Use this fan motor power calculator to estimate the power re...

Low dT, pump control and why DP reset ma...

Low ΔT in a chilled water system is often misunderstoo...

Cooling Tower Sizing Calculator

Use this cooling tower sizing calculator helps estimate prel...

The Physiological Basis for Air Conditio...

Seasonal extremes of heat and cold are often outside the ran...

Relative Pressure and Absolute Pressure

Relative Pressure and Absolute PressureThe deeper divers go ...

Predictive Maintenance and Condition Mon...

So, what is predictive maintenance? How do you use condition...

Transfer Duct Sizing Calculator

Use this calculator to estimate the total pressure drop acro...

Personal Air Coolers

I reckon many personal air coolers are more marketing than e...

Lubricant Related Compressor Failures

If you strip away all the marketing noise around lubricants,...

Removing Mould and Mould Stains

Removing Mouldconcrobium.com/en-au/Walk into Bunnings or har...

The Physiological Basis for Air Conditio...

Seasonal extremes of heat and cold are often outside the ran...

UN SDGs, good intentions, wrong priority...

The United Nations Sustainable Development Goals (UN SDGs), ...

Far Ultraviolet Germicidal Irradiation (...

Far-UVC Ultraviolet Germicidal Irradiation (UVGI)What do you...

What is Refrigeration and Air Conditioni...

Are you looking to learn and take an air conditioning course...

Legacy AHU Supply air fan speed control ...

Legacy Supply Air Fan Speed Control, A Smarter Way to Save E...

Fabric Duct Sizing Calculator

Use this fabric duct calculator to estimate the duct size of...

Is water boiling point always at 100C

Is Water Boiling Point always at 100°CThe temperature of...

Plate Heat Exchanger Sizing Calculator

Use this liquid plate heat exchanger sizing calculator to es...

Mould growth provisions for NCC 2022

Mould Growth Provisions for NCC 2022First published in Linke...

Natural Ventilation Requirements in Aust...

Natural ventilation is one of the simplest ways to provide o...

Ground Source Heat Pump Size Estimator

Use this ground source heat pump size estimator to assess pr...

The Role of the Compressor

Think back to the hot heat exchanger and the black grille be...

Calculate Fan Motor Power

Use this fan motor power calculator to estimate the power re...

Infrared heating

When you walk into a warehouse or sports arena with high-bay...

Refrigerant R22

Before we get ahead of ourselves, R22 will phase out in Aust...

Natural Ventilation FAQ

Natural ventilation can be an effective way to provide outdo...

How Do Air Conditioners Work

The principal role of air conditioning is to maintain a comf...

How to size buffer tank

Buffer tank sizing is not an arbitrary exercise. Typical gui...

How to Size a Chiller

Sizing a chiller is more than selecting a machine with the s...

Maisotsenko Cycle

Heat transfer

Air conditioning is concerned with heat flow processes. Heat...

What is Coanda Effect

What is coanda effect?    How does coand...

Generator Room Ventilations

Use this generator room ventilation calculator to estimate t...

Passive House (Haus) Designs, Heat Recov...

The rise of Passive House design has fundamentally reshaped ...

Comparison of UVC, UVC LED and Far-UVC f...

For AHU cooling coil disinfection, conventional 254 nm UVC m...

Water use by cooling towers

Use this cooling tower water use calculator to estimate the ...

What is P, PI & PID controls

  An open loop system operates without feedback, i...

The Role of the Expansion Device (TXV an...

In the instance of a bicycle pump experiment, you will notic...

AS 1668.2 Mechanical Exhaust Ventilation...

Use this AS 1668.2 mechanical exhaust ventilation rate look-...

Primary-Secondary Pumping, Flow, Mixing,...

Use this primary-secondary pumping calculator to check how f...

Filters energy use

Filter True Cost CalculatorThe Filter True Cost Calculator i...

Thermal Insulation R-Value and U-Value C...

Use this calculator to calculate R-value and U-value from in...

How Does Refrigerant Work in Refrigerati...

Here are some typical operating conditions. As pressures dif...

Conflict of Air Tightness Buildings and ...

Conflict of Air Tightness Buildings and Fire SafetyModern bu...

Design, construction and fit-out of food...

Practical Guide for Western Australian Food PremisesDesignin...

The Refrigeration Gauges

Let’s examine the refrigeration pressure gauge: this i...

How to calculate room pressurisation

Use this room pressurisation calculator to estimate the airf...

Cost Saving Electronically Commutated (E...

One of the common reasons to adopt electronically commutated...

Fabric Duct Sizing Calculator

Use this fabric duct calculator to estimate the duct size of...

Heat energy and change of phase

Heat energy and change of phaseComfort air conditioning syst...

HVAC calculators and Estimators

Free HVAC calculators and estimators for cooling, heating, a...

Natural Ventilation Design Mistakes

Natural ventilation can reduce mechanical cooling and fan en...

AS1668.2 Exhaust Air Requirements

AS1668.2 Exhaust Air RequirementsEnclosure typeQuantityUnitC...

Stair Pressurisation Calculator

This stair pressurisation calculator estimates the prelimina...

What is Refrigeration and Air Conditioni...

Are you looking to learn and take an air conditioning course...

What is Coanda Effect

What is coanda effect?    How does coand...

Cost Saving Electronically Commutated (E...

One of the common reasons to adopt electronically commutated...

Ground Source Heat Pump Size Estimator

Use this ground source heat pump size estimator to assess pr...

How to Size U-Trap - AS/NZS 3666.1

Why is u-trap important and how to size an u-trap for air ha...

UN SDGs, good intentions, wrong priority...

The United Nations Sustainable Development Goals (UN SDGs), ...

Wet bulb depression efficiency-evaporati...

For those who have been to Malaysia, the first thing you eve...

Aged Care Homes Comfort Envelope

Comfort in aged care homes is not just about setting the the...

Comparison with P, PI & PID

NCC2025 Part J6D9 Pipework insulation

Updated to NCC 2025(1) Piping, vessels, heat exchangers and ...

Refrigerant Pipe Sizings

Refrigerant pipe sizingsSuction line velocity: 4.5m/s to max...

The Role of the Compressor

Think back to the hot heat exchanger and the black grille be...

Stair pressurisation system

Stair pressurisation systemDoor average area: 2.1m2Design nu...

How to Size a Chiller

Sizing a chiller is more than selecting a machine with the s...

AS 1668.2 Mechanical Exhaust Ventilation...

Use this AS 1668.2 mechanical exhaust ventilation rate look-...

Refrigeration Cycle P-H Diagram Calculat...

Use this free HVAC Refrigeration P-H Diagram Calculator to b...

Legacy AHU Supply air fan speed control ...

Legacy Supply Air Fan Speed Control, A Smarter Way to Save E...

Understanding the Psychrometric Chart

Although engineers and technicians need to know how the valu...

Natural Ventilation Requirements in Aust...

Natural ventilation is one of the simplest ways to provide o...

AS 1668.2 Minimum Outdoor Airflow Rate C...

Use this AS 1668.2 Minimum Outdoor Airflow Rate Calculator t...

Thermal Insulation R-Value and U-Value C...

Use this calculator to calculate R-value and U-value from in...

Henrys Law and Cavitation

Henry's Law and cavitationEver wondered why a perfectly ...

What is Condenser in Air Conditioning Sy...

The air-cooled condenser is a heat exchanger. What is the fu...

The Phenomenon of Condensation

We’ve seen that to vaporise R22, that is, to change it...

What consultants must learn from Lacross...

Disclaimer: The below is provided for general information an...

What do you want from your BMS 3/3

What do you want from your BMS. Part 3: Direct Expansion Eva...

AS 1668.2 Kitchen Exhaust Calculator

Use this AS 1668.2 kitchen exhaust calculator to estimate mi...

Psychrometric calculator

Use this free HVAC Psychrometric Calculator to calculate moi...

Indirect Evaporative Cooling-The Univers...

In 2011, we were tasked to resolve the HVAC system design fo...

Dehumidified IEC System

TOTAL DEHUMIDIFIED IEC

How reciprocating compressors work in ai...

The reciprocating compressors (piston compressors or recip c...

ASNZS 60079.10 Hazardous Area Ventilatio...

Use this to calculate hazardous atmosphere ventilation rate ...

So What is New in Refrigerant?

From CFCs to HFOs, how Refrigerant Policy Evolved from Ozone...

HVAC calculators and Estimators

Free HVAC calculators and estimators for cooling, heating, a...

Room Noise Predictor From AHU to Diffuse...

Use this room noise predictor to estimate the expected noise...

Ground Source Heat Pump Size Estimator

Use this ground source heat pump size estimator to assess pr...

Heat transfer

Air conditioning is concerned with heat flow processes. Heat...

Fire rated sealants

Fire-rated sealants are required where services, pipes, duct...

How to size buffer tank

Buffer tank sizing is not an arbitrary exercise. Typical gui...

ERV energy recovery calculator

Use this HVAC air-to-air heat exchanger and ERV calculator t...

Natural Ventilation Design Mistakes

Natural ventilation can reduce mechanical cooling and fan en...

What is Coanda Effect

What is coanda effect?    How does coand...

Cooling Tower Sizing Calculator

Use this cooling tower sizing calculator helps estimate prel...

Why Your High Efficient Condensing Boile...

Now that you have installed the high-efficiency condensing b...

Refrigerant R22

Before we get ahead of ourselves, R22 will phase out in Aust...

How Does Refrigerant Work in Refrigerati...

Here are some typical operating conditions. As pressures dif...

How to calculate room pressurisation

Use this room pressurisation calculator to estimate the airf...

Constant Airflow Regulator

Split System Air Conditioners Installati...

The split system air conditioner has two parts: the indoor a...

Laboratory Airflow Control Devices Air V...

What is Coanda Effect

What is coanda effect?    How does coand...

Duct Heat Gain and R-Value Insulation Ca...

Use this calculator to estimate duct heat gain as a percenta...

Average Person Sensible and Latent Heat ...

Use this calculator to estimate the sensible and latent heat...

Heat energy and change of phase

Heat energy and change of phaseComfort air conditioning syst...

Natural Ventilation Designs

 https://www.monodraught.com/https://greenhome.osu.edu/...

Carpark exhaust control

Predictive Maintenance and Condition Mon...

So, what is predictive maintenance? How do you use condition...

Low dT, pump control and why DP reset ma...

Low ΔT in a chilled water system is often misunderstoo...

Cooling Coil Bypass Factor Calculator

Use this calculator to estimate cooling coil bypass factor u...

Dehumidified IEC System

TOTAL DEHUMIDIFIED IEC

Engineering innovation, is creativity th...

Engineering is often seen as a discipline of rules, standard...

Natural Ventilation Design Mistakes

Natural ventilation can reduce mechanical cooling and fan en...

Passive House (Haus) Designs, Heat Recov...

The rise of Passive House design has fundamentally reshaped ...

ERV energy recovery calculator

Use this HVAC air-to-air heat exchanger and ERV calculator t...

Henrys Law and Cavitation

Henry's Law and cavitationEver wondered why a perfectly ...

Chiller Sizing FAQs

This chiller sizing FAQ answers common questions about selec...

Understanding the Psychrometric Chart

Although engineers and technicians need to know how the valu...

Why Your High Efficient Condensing Boile...

Now that you have installed the high-efficiency condensing b...

Wet bulb depression efficiency-evaporati...

For those who have been to Malaysia, the first thing you eve...

Connecting a 50hz induction motor and ru...

What happens if connecting a 50hz induction motor to 60hz po...

Low dT, pump control and why DP reset ma...

Low ΔT in a chilled water system is often misunderstoo...

The Refrigeration Gauges

Let’s examine the refrigeration pressure gauge: this i...

UN SDGs, good intentions, wrong priority...

The United Nations Sustainable Development Goals (UN SDGs), ...

Climate challenges ...

Climate change sits at the intersection of science, politics...

Cooling Tower Sizing Calculator

Use this cooling tower sizing calculator helps estimate prel...

Refrigerant Pipe Sizings

Refrigerant pipe sizingsSuction line velocity: 4.5m/s to max...

Indirect Evaporative Cooling-The Univers...

In 2011, we were tasked to resolve the HVAC system design fo...

BCA Climate Zone Interactive Map

BCA Climate Zone Interactive MapUse the ACBC climate map to ...

Commercial Kitchen Ventilation Designs

Commercial Kitchen Ventilation DesignsAmong the frequent que...

The Physiological Basis for Air Conditio...

Seasonal extremes of heat and cold are often outside the ran...

Preliminary Cooling Load Estimation

Use this preliminary cooling load estimator to calculate an ...

Laboratory Airflow Control Devices Air V...

Maisotsenko Cycle

Removing Mould and Mould Stains

Removing Mouldconcrobium.com/en-au/Walk into Bunnings or har...

Refrigeration Cycles

As its name indicates, it’s in the evaporator that the...

AS 1668.2 Kitchen Exhaust Calculator

Use this AS 1668.2 kitchen exhaust calculator to estimate mi...

Wet bulb depression efficiency-evaporati...

For those who have been to Malaysia, the first thing you eve...

Lubricant Related Compressor Failures

If you strip away all the marketing noise around lubricants,...

Refrigeration Cycle P-H Diagram Calculat...

Use this free HVAC Refrigeration P-H Diagram Calculator to b...

How to verify the percentage of outside ...

Use this outside air percentage calculator to estimate how m...

Solar Absorption Chiller Sizing Calculat...

Use this calculator to estimate solar collector area, storag...

What Happens in the Cold Heat Exchanger

Remember that R22 refrigerant vaporises at -42°C at atmo...

How Do Air Conditioners Work

The principal role of air conditioning is to maintain a comf...

Refrigerant R22

Before we get ahead of ourselves, R22 will phase out in Aust...

Chiller Sizing FAQs

This chiller sizing FAQ answers common questions about selec...

Filters energy use

Filter True Cost CalculatorThe Filter True Cost Calculator i...

Constant Airflow Regulator

Air conditioning back to basic principle...

Air conditioning basic principlesThe basis for air condition...

Refrigeration Cycle P-H Diagram Calculat...

Use this free HVAC Refrigeration P-H Diagram Calculator to b...

Preliminary Cooling Load Estimation

Use this preliminary cooling load estimator to calculate an ...

Water use by cooling towers

Use this cooling tower water use calculator to estimate the ...

Refrigerant Pipe Sizings

Refrigerant pipe sizingsSuction line velocity: 4.5m/s to max...

Small in Window Air Conditioner Units In...

As its name suggests, unitary window air conditioners consis...

Indoor pool and wellness centre

Use this indoor pool and wellness centre calculator to estim...

AS 1668.2 Minimum Outdoor Airflow Rate C...

Use this AS 1668.2 Minimum Outdoor Airflow Rate Calculator t...

Properties of air-psychrometry

Air is the medium with which buildings are cooled and heated...

Indirect Evaporative Cooling-The Univers...

In 2011, we were tasked to resolve the HVAC system design fo...

Solar PV Air Conditioner Sizing

Use this calculator to calculate how many solar panels are r...

Psychrometric calculator

Use this free HVAC Psychrometric Calculator to calculate moi...

Emergency Warning and Intercommunication...

Duct Heat Gain and R-Value Insulation Ca...

Use this calculator to estimate duct heat gain as a percenta...

Chiller Sizing Example

This worked example shows how to size a chiller for a commer...

Dehumidified IEC System

TOTAL DEHUMIDIFIED IEC

Calculate Pump Motor Power

Use this pump motor power calculator to estimate the power r...

Split System Air Conditioners Installati...

The split system air conditioner has two parts: the indoor a...

Comparison with P, PI & PID

Generator Room Ventilations

Use this generator room ventilation calculator to estimate t...

The Role of the Expansion Device (TXV an...

In the instance of a bicycle pump experiment, you will notic...

Fire rated sealants

Fire-rated sealants are required where services, pipes, duct...

Maisotsenko Cycle

How a chiller controls its capacity and ...

A chiller controls its capacity mainly by maintaining the le...

Generator Room Ventilations

Use this generator room ventilation calculator to estimate t...

Is Water a Good Refrigerant

Let’s remind ourselves of these two basic rules:There ...

Air and human comfort

Space explorations to the moon, other planets, and beyond ha...

Dehumidified IEC System

TOTAL DEHUMIDIFIED IEC

Personal Air Coolers

I reckon many personal air coolers are more marketing than e...

Split System Air Conditioners Installati...

The split system air conditioner has two parts: the indoor a...

What Happens in the Cold Heat Exchanger

Remember that R22 refrigerant vaporises at -42°C at atmo...

Climate challenges ...

Climate change sits at the intersection of science, politics...

Mould growth provisions for NCC 2022

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