HVAC Buddy®

HVAC Buddy® Psychrometric

Description
Quickly calculate thermodynamic properties of moist air at temperatures commonly used in HVAC Systems. Given dry bulb temperature, pressure, and any one of four properties all remaining properties are calculated.

Tabs allow entry of two sets of properties which can be combined with flow rates on the Mix tab to get properties of the resulting air flow. Save entry parameters and calculations via email from direct entry or your contact list.

Features:

• Calculate multiple property states P1, P2, and P3
• Imperial (IP) or Metric (SI)
• Calc properties based on Pressure, Dry bulb, and any of four input properties
• Calc properties for the adiabatic mixing of two streams
• Save properties - email report inputs and outputs

Usage:

HVAC Psychrometric Buddy calculates psychrometric properties for each of two states labeled "P1" and "P2" corresponding to the same named tabs at the bottom of the application. To calculate enter altitude, dry bulb, and at least one of the following:

• Wet Bulb Temperature
• Relative Humidity
• Humidity Ratio
• Enthalpy

to enable the appropriate input tap on the same named parameter on the tab control at the top of the screen.

Calculations:

• Altitude F (M)
• Dry Bulb °F (°C)
• Wet Bulb °F (°C)
• Relative Humidity pct
• Humidity Ratio lb water/lb air (kg water/kg air)
• Enthalpy Btu/lb (kJ/kg)
• Grains Grains/lb
• Specific Volume ft³/lb (m3/kg)
• Dew Point Temp °F (°C)
• Atmospheric Pressure psia (kPa)
• P1 Air Flow cfm (m³/s)
• P2 Air Flow cfm (m³/s)
• P1 Mass Flow lb/hr (kg/s)
• P2 Mass Flow lb/hr (kg/s)
• P1+P2 Mass Flow lb/hr (kg/s)
• P1+P2 Air Flow cfm (m³/s)
• P1+P2 Dry Bulb °F (°C)
• P1+P2 Wet Bulb °F (°C)
• P1+P2 Relative Humidity pct
• P1+P2 Humidity Ratio lb water/lb air (kg water/kg air)
• P1+P2 Enthalpy Btu/lb (kJ/kg)
• P1+P2 Grains Grains/lb
• P1+P2 Specific Volume ft³/lb (m3/kg)
• P1+P2 Dew Point Temp 10.7 °F (°C)

Calculations per ASHRAE Fundamentals 2009. The Instructions tab includes Imperial and Metric examples with solutions using charts and interpolations alongside a solution using HVAC Psychrometric Buddy.

Email

Email is used to save your input parameters and resulting calculations by sending a formatted report to anyone with an email address. This address can be entered on the fly or pulled from your contact list.

FOR EVERYONE

Evaluating a field service problem can be challenging but with FLEETGRID the equation becomes simple. First, we've taken a devide and concor approach by splitting our user base into 3 different senarios (outlined below: for companies, for pros, for homes) and providing a downloadable on-premise app for each group. Second, we provide an off-site cloud based application that is available for everyone to take advantage of (cloud.fleetgrid.com). Lastly, we tie all of this together by syncing data between applications, the cloud, and other third party services in a seamless way.
There a couple key differences between our on-premise downloadable apps and our internet based cloud app. Our downloadable apps function offline first so that means you can get the job done off-grid. The data on them is stored encrypted so not even we can see your data. They are also real-time and peer-to-peer so there is no central authority to get in your way. Our cloud based application, while it does require an internet connection, takes advantage of big data, machine learning, and other areas where a mobile phone or other device can't handle by itself.
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