摘要:
A film fill-pack (12) has a plurality of fill-sheets (14,50,52,58,60) with an ordered array of ridges (163) and grooves (165) generally extending above a planar surface on both the obverse and reverse surfaces of a fill-sheet, which fill-sheets at an assembled state provide the ridges and grooves of facing obverse and reverse surfaces of adjacent fill-sheets in an arrangement providing a plurality of channels (220,222) between adjacent fill-sheets for gas flow therethrough and where the ordered arrangement of ridges (163) and grooves (165) induces spiraling of the gas flow through the channels (220,222) for promotion of improved heat transfer; and, where the fill-sheets (14,50,52,58,60) further include a spacing arrangement (252) providing a compact nesting of adjacent sheets with minimal sheet-to-sheet displacement at least at two of the edges for compact handling, transfer and storage with a self-spacing of adjacent fill-sheets at assembly of the film fill-pack.
摘要:
The heat exchange system (8) may be arranged as a fluid cooler or as a fluid condenser. Three heat exchange sections are provided: a dry indirect contact heat exchange section (16); a second indirect contact heat exchange section (28) that is operable in either a wet or dry mode; and a direct contact heat exchange section (76). At low temperatures, the system operates dry with primary heat extraction performed by the dry indirect contact heat exchange section (16). At higher temperatures, the air streams may be adiabatically saturated with evaporative liquid to pre-cool them below the dry bulb temperature before entering the dry indirect contact heat exchange section. At still higher temperatures, the apparatus may be operated in a wet mode with the primary heat extraction performed by the second indirect contact heat exchange section (28). Heat is extracted from the process fluid while selectively distributing or not distributing the evaporative liquid over the second indirect contact heat exchange section (28).
摘要:
A heat exchange apparatus (10) is provided with an indirect evaporative heat exchange section (50) and a direct evaporative heat exchange section (90). A uniform temperature evaporative liquid is downwardly sprayed into the indirect section to indirectly exchange sensible heat with a hot fluid stream flowing within a series of enclosed circuits (54) which comprise the indirect evaporative heat exchange section. After the evaporative fluid descends through the entire indirect heat exchange section and absorbs heat, it is distributed across fill media within the direct evaporative heat exchange section for cooling. Separate streams of ambient cooling air are simultaneously drawn into each of the heat exchange sections to evaporatively cool the evaporative liquid flowing within each section. The water cooled in the direct heat exchange section is then collected in a sump (30) where it is allowed to mix and resultantly become uniform in temperature before being redistributed.
摘要:
Method and apparatus for thermal storage to deliver cold liquid refrigerant during a supply cycle including the steps of freezing storage liquid envelopes only on tubes (36) defining refrigerant flow paths during an ice production and storage cycle and extending the effective flow paths during the supply cycle through supplementary conduits (50) immersed in free storage liquid (30) to enable said liquid refrigerant to be cooled by said free storage liquid during the supply cycle.
摘要:
The heat exchange apparatus (10) and method is provided with an indirect evaporative heat exchange section (36) and a direct evaporative heat exchange section (20). An evaporative liquid is sprayed downwardly into the direct evaporative section (20) to directly exchange heat from the evaporative liquid flowing across fill sheets (22). The evaporative liquid is then collected in a re-spray tray (26). The collected evaporative liquid is then sprayed onto the indirect evaporative heat exchange section (36) to indirectly exchange sensible heat from a fluid stream flowing within a series of enclosed circuits (37) comprising the indirect evaporative heat exchange section (36).
摘要:
A system and methods of extracting heat are disclosed. The system may be arranged as a fluid cooler or as a fluid condenser. Three heat exchange sections are provided: a dry indirect contact heat exchange section; a second indirect contact heat exchange section that is operable in either a wet or dry mode; and a direct contact heat exchange section. At low temperatures, the system operates dry with primary heat extraction performed by the dry indirect contact heat exchange section. At higher temperatures, the air streams may be adiabatically saturated with evaporative liquid to pre-cool them below the dry bulb temperature before entering the dry indirect contact heat exchange section. At still higher temperatures, the apparatus may be operated in a wet mode with the primary heat extraction performed by the second indirect contact heat exchange section. Heat is extracted from the process fluid while selectively distributing or not distributing the evaporative liquid over the second indirect contact heat exchange section.