Fully articulated and comprehensive air and fluid distribution, metering, and control method and apparatus for primary movers, heat exchangers, and terminal flow devices

• US 20080161975A1
• Filed: 01/14/2008
• Published: 07/03/2008
• Est. Priority Date: 05/03/2005
• Status: Active Grant

• Current Assignee: Daniel Stanimirovic
• Original Assignee: Daniel Stanimirovic
• Inventors: Stanimirovic, Daniel
• Granted Patent: US 7,854,135 B2
• Time in Patent Office: Days
• US Class Current: 700/276
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/32 Responding to malfunctions or emergencies
• CPC Class Codes: F24F 11/49 ensuring correct operation, e.g. by trial operation or configuration checks
• CPC Class Codes: F24F 11/89 Arrangement or mounting of control or safety devices
• CPC Class Codes: F24F 2110/30 Velocity
• CPC Class Codes: F24F 2110/40 Pressure, e.g. wind pressure

Abstract

The described method and apparatus pertains namely to the HVAC (Heating, Ventilating, and Air Conditioning) industry, though its many functions extend into any and all forms of air-fluid movement, metering, distribution, and containment. Essentially, the scope of operation of the method and apparatus encompasses all forms of scientific and engineering measurement dealing with fluid dynamics, fluid statics, fluid mechanics, thermal dynamics, and mechanical engineering as they pertain to precise, articulated control of air-fluid distribution and delivery. The described method and apparatus offers complete, comprehensive, and correct utilization of air-fluid movers and terminal devices under unique sensor logic control, from initial lab testing stages through to equipment cataloguing, selection, design and construction of any and all air-fluid distribution systems in entirety, whereas previously there was no such cohesive, total and terminal method of control for these systems or their components.

Claims

1. A method for determining percentages of OA/RA content of Total Air by multi-point temperature sensing wherein

dry and wet bulb temperatures of OA/RA air streams are measured independently prior to entering the mixing box;

dry and wet bulb MA (Mixed Air) temperature is measured inside the mixing box through a multi-point traverse where air is not stratified;

a calculating step is performed to determine enthalpy of each air stream;

a calculating step is performed to determine percentages of OA/RA content of Mixed Air, where any of the unknowns;

OA, RA, or MA data are solved for;

and the unknown percentage thus solved is applied to the Total Air figure as data obtained from the main flow-pressure monitor station (2), as an OA or RA percentage of the Total Air.

2. A method in accordance with claim 1 for determining coil or heat exchanger loading wherein

a calculating step is performed to determine the Mixed Air enthalpy (Hm) with percentages of OA and RA content and dry and wet bulb temperatures;

comparing the previous step with same multi-point readings downstream of the heat exchanger (8);

determining total flow from the flow-pressure monitor (2);

performing a calculating step to determine total, latent, and sensible loads on the heat exchanger (8).

3. A method in accordance with claim 2 for controlling loading characteristics of the heat exchanger (8) comprising the steps of

modulating dual damper control of the mixing box;

adjusting OA and RA content, or primary and secondary air streams comprising Total Air content,

comparing OA/RA enthalpy as separate airstreams

altering the value of Mixed Air enthalpy by decreasing OA or RA individual air stream content to dilute the OA/RA content of one or the other air stream,

thus incurring latent or sensible changes;

and providing specific conditions of total, latent, or sensible heat exchange as displayed on a psychrometric chart (6);

thus following the vectorial lines of the chart as depicted in accordance with thermal dynamic relationships based on dry air moisture content.

4. The method of claim 3 wherein the value of mixed air enthalpy is controlled by means of humidification or dehumidification.

5. The method of claim 3 or 4 wherein the value of mixed air enthalpy is controlled by means of adjusting pounds per pound or grains per pound of air moisture content.

6. The method of claim 3 wherein as dry bulb decreases are incurred where sensible heat content approaches zero, enthalpy or Total heat is held constant by inducing humidification to allow only adiabatic saturation to occur.