Carrier Corporation

Norberto O Lemcoff

Stephen O Hay

Wayde R Schmidt

Timothy N Obee

Joseph J Sangiovanni

Susan D Brandes

Zissis A Dardas

Thomas Henry Vanderspurt

Gregory M Dobbs

Treese Hugener-Campbell

Foster Philip Lamm

Mary D Saroka

James D Freihaut

Darren S Sheehan

Jeffrey T Benoit

Catherine Thibaud-Erkey

Di Wei

Robert C Hall

Albert T Pucino

Leland G Brandes

An energy recovery heat exchanger () includes a housing (). The housing has a first flowpath () from a first inlet () to a first outlet (). The housing has a second flowpath () from a second inlet () to a second outlet (). Either of two cores may be in an operative position in the housing. Each core has a number of first passageways having open first and second ends and closed first and second sides. Each core has a number of second such passageways interspersed with the first passageways. The ends of the second passageways are aligned with the sides of the first passageways and vice versa. A number of heat transfer member sections separate adjacent ones of the first and second passageways. An actuator is coupled to the carrier to shift the cores between first and second conditions. In the first condition, the first core () is in the operative position and the second core () is not. In the second condition, the second core is in the operative position and the first core is not. When a core is in the operative position, its first passageways are along the first flowpath and the second passageways are along the second flowpath.

Energy recovery ventilator

A contaminant removal system is disclosed for selectively removing contaminants from a fluid stream. The contaminant removal system has a catalytic reactor of the type that is susceptible to deactivating agents, and is configured to remove contaminants from a fluid stream. The contaminant removal system has a first adsorbent device positioned upstream, with respect to the fluid stream direction, of the catalytic reactor, that is configured to chemically bind with and remove the deactivating agents from the fluid stream. The contaminant removal system can have a second adsorbent device positioned downstream, with respect to the fluid stream direction, of the catalytic reactor. The second adsorbent device is configured to remove undesirable byproducts that may be generated when the catalytic reactor removes contaminants from the fluid stream.

Systems and methods for removal of contaminants from fluid streams

The present disclosure relates to a fluid purification device that has a deactivation resistant photocatalyst having nanocrystallites of less than 14 nanometers (nm) in diameter with at least 200 msurface area/cmof skeletal volume in cylindrical pores of 5 nm in diameter or larger, with the mode of the pore size distribution 10 nm or more.

Deactivation resistant photocatalysts

A gas treatment system for treating a gas stream containing contaminants includes first and second gas treatment members in fluid communication with each other. Each of the first and second gas treatment members is selectively controllable between an on and an off condition. A third gas treatment member is in fluid communication with the first and second gas treatment members, and the third gas treatment member selectively retains or releases the contaminants based upon the on or off condition of at least one of the first or second gas treatment members.

Photocatalyst protection

An air treatment system includes a filter and heating element, a plasma device, and a photocatalyst and UV light that cooperate to purify an air stream flowing through the air treatment system and protect the photocatalyst from passivating effects of certain contaminants. The air treatment system operates in two different modes. In the first mode, the air treatment system primarily draws air from and returns air to a space, and the heating element and plasma device are selectively shut off. In the second mode, the air treatment system regenerates the filter using the heating element to selectively heat the filter and release adsorbed contaminants. The plasma device is selectively turned on and chemically transforms the released contaminants into solid contaminant products. The solid contaminant products are deposited on a biased electrode of the plasma device. The UV light is turned off to ensure that the photocatalyst is inoperable during the release and transformation of the contaminants. Once deposited, the essentially immobile and inert solid contaminant products are unlikely to damage the photocatalyst.

A system is disclosed which incorporates low pressure drop contaminant removal from gas phases or streams, which advantageously can be used to enhance efficiency, improve humidity characteristics, and reduce capital cost of air handing systems such as HVAC systems and the like. Placement of the low pressure drop contaminant removal mechanism for enhancing effectiveness of same is also disclosed.

Gas phase contaminant removal with low pressure drop

Growing community of inventors

Simsbury, CT, United States of America

Norberto O Lemcoff