Heat exchange – Regenerator – Checker brick structure
Patent
1988-10-14
1990-05-29
Ford, John
Heat exchange
Regenerator
Checker brick structure
165 16, 165 22, 165 26, 165 27, 236 493, 236 46F, 236 1B, 236 1C, 25112905, F24F 11053, F24F 1106, F25B 2900
Patent
active
049287508
ABSTRACT:
A refrigeration system for temperature conditioning several comfort zones includes several VAV (variable air volume) valves each having a hot water coil conveying water whose flow rate is regulated by a PWM (pulse-width modulated) solenoid valve. Each VAV valve is connected to a supply air duct conveying cool supply air. When a zone's temperature is above a set point temperature, the opening of the VAV valve is modulated to meet the cooling demand, and the water coil is shut off. When a zone's temperature is below the set point, the VAV valve is opened to provide a predetermined constant airflow rate and the hot water coil's solenoid valve is cycled open and closed in a pulse-width modulated manner to meet the heating demand.
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American Standard Inc.
Beres William J.
Ford John
Harter Robert J.
O'Driscoll William
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