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US 10,309,662 B2Granted
Environment control system and devices
AssigneeAlaska Structures, Inc.
InventorGerald A. Alston
Life of this patent
Estimating the term…
Abstract
Heating, ventilating and air conditioning are provided to a temporary, flexible shelter, especially in a rugged, remote and/or extreme environment, including locations and/or conditions where access to electric power may be limited and/or expensive. A portable system may include a light weight HVAC unit, with variable-speed components that are dynamically managed for efficiency, reliability and safety, and a flexible, self-insulating duct for connecting the HVAC unit to the temporary shelter.
Claims6
An environment control system for supplying conditioned air to a portable shelter, the control system comprising:
- a refrigerant condenser, a condenser fan for moving air over the refrigerant condenser, and a variable-speed motor for operating the condenser fan;
- an evaporator, an evaporator fan for moving air over the evaporator and into the portable shelter, and a variable-speed motor for operating the evaporator fan;
- a compressor for receiving refrigerant from the evaporator and for transferring the refrigerant to the condenser;
- and
- a management system including a memory device and a processor, the memory device being configured to store operating limits, and wherein the processor is configured to make determinations based on (1) the operating limits and (2) measured parameters, and to adjust one or more of the speed of the condenser fan, the speed of the evaporator fan, and the speed of the compressor in response to the determinations, to thereby optimize performance of the environment control system within the operating limits;
- and
- wherein the environment control system includes an adjustable fresh air vent for allowing fresh air into the control system, and an air quality sensor for sensing a contamination level, and wherein the management system is configured to operate the control system in active and inactive modes, wherein the management system adjusts the fresh air vent in response to a signal from the air quality sensor to maintain the contamination level below a first threshold, in the active mode, and wherein the fresh air vent is closed regardless of the contamination level, in the inactive mode.
4 more elements
Dependencies are inferred from the claim text.