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1. (WO2019046956) HYBRID DIRECT AND INDIRECT AIR COOLING SYSTEM
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Pub. No.: WO/2019/046956 International Application No.: PCT/CA2018/051094
Publication Date: 14.03.2019 International Filing Date: 07.09.2018
IPC:
F24F 1/14 (2011.01) ,F24F 13/04 (2006.01) ,F24F 3/06 (2006.01) ,F25B 19/00 (2006.01) ,G06F 1/20 (2006.01) ,H05K 7/20 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
F
AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
1
Room units, e.g. separate or self-contained units or units receiving primary air from a central station
06
Separate outdoor units, e.g. outdoor unit to be linked to a separate room unit comprising a compressor and a heat exchanger
14
Heat exchangers specially adapted for separate outdoor units
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
F
AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
13
Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
02
Ducting arrangements
04
Air-mixing units
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
F
AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
3
Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
06
characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
19
Machines, plant, or systems, using evaporation of a refrigerant but without recovery of the vapour
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
1
Details not covered by groups G06F3/-G06F13/82
16
Constructional details or arrangements
20
Cooling means
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
K
PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
7
Constructional details common to different types of electric apparatus
20
Modifications to facilitate cooling, ventilating, or heating
Applicants:
NORTEK AIR SOLUTIONS CANADA, INC. [CA/CA]; 1502D Quebec Avenue Saskatoon, Saskatchewan S7K 1V7, CA
Inventors:
ABDEL-SALAM, Ahmed Hamdi; CA
LEPOUDRE, Philip Paul; CA
GERBER, Manfred; CA
Agent:
SMART & BIGGAR; P.O. Box 2999, Station D 900-55 Metcalfe Street Ottawa, Ontario K1P 6L5, CA
Priority Data:
62/556,25008.09.2017US
Title (EN) HYBRID DIRECT AND INDIRECT AIR COOLING SYSTEM
(FR) SYSTÈME HYBRIDE DE REFROIDISSEMENT DIRECT ET INDIRECT D'AIR
Abstract:
(EN) A hybrid system and method for conditioning air for an enclosed space can include a direct cooling system in combination with an indirect cooling system. The hybrid system can use direct cooling when ambient temperature and humidity levels are such that 100% outdoor air can be delivered to the enclosed space. The hybrid system can use indirect cooling when 100% of the return air can be conditioned using an external cooling unit and then returned to the enclosed space as supply air. The external cooling unit can include an evaporative cooler and operate in a dry mode and a wet mode. The external cooling unit can produce a reduced temperature cooling fluid and provide liquid cooling to the air when the system is operating in the indirect mode, and in some cases, in the direct mode. The hybrid system can operate in a mixed mode in which the external cooling unit is off and a mix of return air and outdoor air can be delivered to the enclosed space.
(FR) L'invention concerne un système hybride et un procédé de conditionnement d'air destinés à un espace renfermé et pouvant comprendre un système de refroidissement direct en combinaison avec un système de refroidissement indirect. Le système hybride peut utiliser un refroidissement direct lorsque la température ambiante et les niveaux d'humidité sont tels que 100 % de l'air extérieur peut être distribué à l'espace renfermé. Le système hybride peut utiliser un refroidissement indirect lorsque 100 % de l'air de retour peut être conditionné à l'aide d'une unité de refroidissement externe puis renvoyé à l'espace renfermé en tant qu'air d'alimentation. L'unité de refroidissement externe peut comprendre un refroidisseur par évaporation et fonctionner en mode sec et en mode humide. L'unité de refroidissement externe peut produire un fluide de refroidissement à température réduite et assurer un refroidissement par liquide de l'air lorsque le système fonctionne en mode indirect et, dans certains cas, en mode direct. Le système hybride peut fonctionner en mode mixte, dans lequel l'unité de refroidissement externe est éteinte et un mélange d'air de retour et d'air extérieur peut être distribué à l'espace renfermé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)