Table of Contents
- Dryer Software
- Dryer Training
- Air Brake Supply System Simulation for Commercial Vehicle Equipment Manufacturer
- Dryer Analysis for Biological Agent Warning System for Defense Contractor
- Engineering Study for the Wave Guide Air Supply System for Phalanx Program Defense Contractor
- 100,000+ scfm Wind Tunnel Dryer Regen System Upgrade for Government Research Facility
- Ultra-Low Dew Point Heated Dryer
- Split Stream Argon Gas Dryer
- New Propulsion Wind Tunnel Dryer for Government Research Facility
- Desiccant Wheel Dryers for Government Research Engine Test Facility – Witness Shop Test
- Compressed Natural Gas Dryer
- Transonic Dynamic Tunnel (TDT) Dryer for Government Research
- Nitric Oxide Pilot Plant Dryer
- Nitric Oxide Commercial Dryer
TRAINING, SOFTWARE, & STUDIES
Dryer Software
- PEDCO’s Adsorptive Gas Dryer Software simulates the performance of Thermal Swing, Pressure Swing and Non-regenerated dryers.
- The program solves the system of conservation equations of mass, momentum, and energy relative to the dryer design specified by the user.
- Data is entered into intuitively designed windows forms.
- In house and site data has been used to validate simulated data.
Dryer Training
- Training is offered for use of the Adsorptive Gas Dryer software.
- Training is offered to explain the fundamentals of adsorptive dryers and explain the classical sizing procedures.
- Psychometrics or psychometry is are terms used to describe the field of engineering concerned with the determination of physical and thermodynamic properties of gas-vapor mixtures.
- A good reference is American Society of Heating, Refrigerating, and Air-Conditioning Engineers’ (ASHRAE) Handbook of Fundamentals.
Air Brake Supply System Simulation for Commercial Vehicle Equipment Manufacturer
- PEDCO creates custom software to design and simulate process equipment.
Dryer Analysis for Biological Agent Warning System for Defense Contractor
- Moisture Diffusion Modeling Required
- System Start up in 15 minutes
Engineering Study for the Wave Guide Air Supply System for Phalanx Program Defense Contractor
- Wave Guide Purge Air Dryer Analysis
DESICCANT DRYERS
100,000+ scfm Wind Tunnel Dryer Regen System Upgrade for Government Research Facility
- Process flow diagrams
- 3D scale model
- Process calculations
- Instrumentation and component specifications
- Sequence of operations manuals
- Start up and verification testing of dryer
Ultra-Low Dew Point Heated Dryer
- Process Flow Diagram
- General Arrangement 3D Model
- Process Calculations
- Built to customer strict specifications (long list of materials not permitted)
- Control Logic Drawings
- General Arrangement Drawings
- -120F PDP @ 100psi
- Internally heated dryer
- Shop tested
- PLC programming
Split Stream Argon Gas Dryer
- Argon Gas
- 700 scfm at 580 psig
- Process Calculations
- Equipment Sizing
- General Arrangement 3D Model
- Venturi Flow Element Design
- Instruction Manual Preparation
- PLC Programming
- PLC Touch Screen
- Shop Testing
- PID Tuning
New Propulsion Wind Tunnel Dryer for Government Research Facility
- 320,000 scfm at atmospheric pressure
- Process calculations
- Owner’s Engineer
- Proposal Reviews
Desiccant Wheel Dryers for Government Research Engine Test Facility – Witness Shop Test
- 40,000 scfm at atmospheric pressure
- -43°F dew point, 0.5 gr/lbair
- Witness shop test for Government Research Engine Test Facility
Compressed Natural Gas Dryer
- Process calculations
- Regen blower package design
Transonic Dynamic Tunnel (TDT) Dryer for Government Research
- 4,250 scfm, -2.6 psig, -40°F dew point
- Includes precooler to lower temperature to desiccant bed to 50°F
- Unique design required to enable equipment to be lowered between building and wind tunnel ducting
- Regeneration system, 1,300 scfm, 30 hp blower, 120 kW heater
- Condensing unit constructed from components including 110 hp screw compressor, water cooled condenser, controls, accumulators and receiver
Nitric Oxide Pilot Plant Dryer
- Fluid – nitric oxide gas
- Flow rate – 0.75 – 1.5 scfm
- Pressure – 1.5 psig
- Designed, constructed, and tested in Pedco’s shop
Nitric Oxide Commercial Dryer
- Fluid – nitric oxide gas
- Flow rate – 82 scfm
- Pressure – 75 psig
REFRIGERATED DRYERS
Low Pressure Cooler/Dryer
- 650 scfm
- 4 psig
- Precooler for dual tower desiccant dryer
- 8.5 hp scroll compressor
- Hot gas bypass capacity control
- PFD Drawings
- Electrical Control Logic Schematics
- PLC Programming
- New Electronics, Refrigeration Unit, Fabricated Coil Housing (to match existing flanges) and Instrumentation
- Skid mounted and designed to integrate with existing dryer
Large Refrigerated Dryers with Shell-and-Tube Heat Exchangers
- Uses shell-and-tube heat exchangers
- Flow rate – 3,000 scfm
- Pressure – 100 psig
- Inlet temp – 100°F
- 15 hp water cooled condensing unit with reciprocating compressor
- Shell-and-tube air-to-air heater exchanger bundle
- Shell and tube heat exchanger with single segmented baffles
- Low finned tubes
- Twisted tape turbulator for heat transfer enhancement
Large Refrigerated Dryer with Remote Condensing Unit
- 10,000 scfm
- 100 psig
- 130°F Inlet Temperature
- 40°F pressure dew point
- Packaged air-cooled condensing unit
- Condensing unit located 350 feet from air end
ADSORPTION SYSTEMS
Nitrogen Generator
- Process Calculations
- Equipment sizing
- Instrumentation Specs.
- Shop testing
Siloxane Adsorption Bed Sizing
- Sizing spreadsheet developed based on breakthrough data of Niessner
CO2 Adsorption System
- Layered bed is used.
- Activated alumina on bottom reduces PDP to -40°F or lower.
- Molecular sieve at top reduces CO2 concentration from 400 ppm to as low as 1 ppm.
- Regeneration – open loop countercurrent heating and closed-loop co-current cooling.
MASS TRANSFER EQUIPMENT
Saturator for Test Booth for Compressed Air Treatment Manufacturing Company
- Flow rate – 3,000 scfm
- Pressure – 100 psig
- Capability to heat and humidify air with 35°F PDP from 70°F to saturated air at 100+1°F.
- Capability to cool and saturate air with minus 40°F PDP from 130°F to saturated air at 100+1°F.
Compressed Air Saturator for Compressed Air Treatment Manufacturing Company
- Process calculations
- Material selection
- Instrumentation and controls design
- Project management
- Instruction manual
