Abstract:
The invention relates to a heat exchanging device for air conditioning using indirect and direct adiabatic cooling. To increase efficiency of cooling in summer period system with pump M and nozzles (S1, S2) in section of heat exchanger is installed. Pump is circulating water over the installed piping system to nozzles S1 and S2. Water is sprayed into airstream F1, and in this way is adiabatically cooled which results in better indirect adiabatic cooling of airstream F2. In order to increase cooling of airstream even more, F2 system of nozzles S3 is connected to pump system, and is directly cooling airstream F2 with adiabatic process. Optionally, system allows installation of the three way valve on pump system for use during cold season, which results in desirable humidification of airstream F2.
Abstract:
An innovative heating/dehumidification (RD) system is described, which is configured in such a way to dehumidify a room without cooling it and is also configured in such a way to simultaneously heat and dehumidify the room.
Abstract:
A heating, ventilation, and air-conditioning ("HVAC") system for use with a refrigerant. The HVAC system may include a compressor, an outdoor heat exchanger positioned downstream of the compressor, a first variable expansion device positioned downstream of the outdoor heat exchanger, an indoor heat exchanger positioned downstream of the first variable expansion device and upstream of the compressor and including a reheat portion and a main portion, a second variable expansion device positioned downstream of the reheat portion of the indoor heat exchanger and upstream of the main portion of the indoor heat exchanger, a first control valve operable to selectively control the flow of the refrigerant through the reheat portion of the indoor heat exchanger and the main portion of the indoor heat exchanger, and a control system programmed to selectively operate the HVAC system in one of a first cooling mode, a second cooling mode, and a dehumidification mode.
Abstract:
Eine Kühlvorrichtung (1) für zur Erzeugung eines Zuluftstroms (3) verwendete Außenluft (2), die eine vergleichsweise hohe Temperatur und eine vergleichsweise hohe relative Luftfeuchtigkeit aufweist, ist so gestaltet, dass in der Kühlvorrichtung (1) Abluft (4) zur Kühlung der zur Erzeugung des Zuluft-Stroms (3) verwendeten Außenluft (2) eingesetzt wird. Um in bestimmten klimatischen Verhältnissen mit einem vergleichsweise geringen technisch-konstruktiven Aufwand den Wirkungsgrad der Kühlvorrichtung (1) spürbar zu erhöhen, wird vorgeschlagen, dass die Kühlvorrichtung (1) zwei aufeinanderfolgend angeordnete Plattenwärmetauscher (5, 6) aufweist, die von der Außenluft (2) bzw. der Abluft (4) nacheinander durchströmt werden, und dass zwischen einem Außenluftausgang (10) des von der Außenluft (2) zuerst durchströmten Plattenwärme- tauschers (5) und einem Außenlufteingang (11) des von der Außenluft (2) danach durchströmten Plattenwärmetauschers (6) im Strömungsweg der Außenluft (2) ein Kühlmittel (12) angeordnet ist, mittels dem die Außenluft (2) abkühlbar und der Außenluft (2) Feuchtigkeit entziehbar ist.
Abstract:
An electric re-heat dehumidification apparatus to dehumidify a conditioned space is provided and includes a conditioning unit to produce an output airstream including overcooled air to be provided to the conditioned space to overcool the conditioned space during the dehumidifying of the conditioned space, a resistive element disposed within an output airstream of the conditioning unit, which, when activated, heats the overcooled air of the output airstream and a controller, operably coupled to the resistive element, to activate the resistive element in accordance with information of the conditioning unit, the resistive element and a temperature of the conditioned space to limit the overcooling of the conditioned space.
Abstract:
Recuperation systems and methods are applied to vapor compression cycles in dehumidification, such as in air conditioning. In some embodiments, a method for dehumidification includes introducing a refrigerant from a heating unit to a cooling unit along a first path; introducing the refrigerant from the cooling unit to the heating unit along a second path different from the first path; introducing the refrigerant from the heating unit to the cooling unit along a third path different from the first path; and contacting the cooling unit and the heating unit with a first gas stream.
Abstract:
Refrigeration cycle dehumidif iers and related methods include directing a first air flow across a first portion (2) of a condenser (13) and directing a second air flow across a second portion (3) of the condenser. The first portion (2) is nearer a refrigerant inlet of the condenser than the second portion (3), and the first air flow has a higher temperature than the second air flow.