1. A heat exchanger comprising:
a fins and tubes heat exchanger, comprising a stack of fins, the fins comprising at least one through hole coupled with a penetrating heat exchanging tube:
a plates heat exchanger comprising a stack of plates, at least two sets of flow inlets and two sets of flow outlets, at least a portion of the plates each comprising a void and an embossment, wherein
each one of at least a portion of the fins of the fins and tubes heat exchanger being at least partially attached to a corresponding plate of the plates heat exchanger to define a set of a fin and a plate (SFP) wherein the fin is at least partially overlapping the void of the corresponding plate, and at least a portion of a peripheral margin of the fin being attached to at least a portion of a peripheral margin around the void of the plate such that fluid flowing over either side of the plate comes in contact with the fin; and
wherein at least one of: (i) an alternating order of differently embossed plates; and (ii) an alternating orientation of plates in the stack, is adapted to enable one or more of (i) a simultaneous counter fluid flow, (ii) cross fluid flow or (iii) semi counter-cross fluid flow above and below the SFP.
2. A heat exchanger comprising:
a fins and tubes heat exchanger, comprising a stack of fins, the fins comprising at least one through hole coupled with a penetrating heat exchanging tube and at least a portion of the fins comprising at least one through fluid aperture allowing fluid to pass from one side of the fin to the other side; and
a plates heat exchanger comprising a stack of plates, at least two sets of flow inlets and two sets of flow outlets, at least a portion of the plates each comprising a void and an embossment, wherein

each one of at least a portion of the fins of the fins and tubes heat exchanger being at least partially attached to or encompassed by a plate of the plates heat exchanger to define a set of a fin and a plate (SFP) such that fluid flowing over either side of the plate comes in direct contact with the fin;
and wherein at least one of: (i) an alternating order of differently embossed plates; and (ii) an alternating orientation of plates in the stack, is adapted to enable a simultaneous counter fluid flow, cross fluid flow or semi counter-cross fluid flow above and below the SFP.
3. A heat exchanger comprising:
a fins and tubes heat exchanger, comprising a stack of fins, the fins comprising at least one through hole coupled with a penetrating heat exchanging tube; and
a plates heat exchanger comprising a stack of plates, at least two sets of flow inlets and two sets of flow outlets, at least a portion of the plates each comprising a void and an embossment, wherein
each one of at least a portion of the fins of the fins and tubes heat exchanger being at least partially attached to or encompassed by a plate of the plates heat exchanger to define a set of a fin and a plate (SFP) such that fluid flowing over either side of the plate comes in direct contact with the fin;
and wherein at least one of: (i) an alternating order of differently embossed plates; and (ii) an alternating orientation of plates in the stack, is adapted to enable a simultaneous counter fluid flow, cross fluid flow or semi counter-cross fluid flow above and below the SFP and wherein
said plates comprising lateral peripheral protrusions designed to form, when the plate is stacked with another plate, one of:
(a) at peripheral locations intended to be sealed at least one of:
i. a gap between the peripheral protrusions and a surface of an adjacent plate facing the peripheral protrusion, being sufficiently narrow to enable applied adhesive to fill the gap; and

ii. an outer lateral width of the two plates, enabling an applied adhesive to encircle the outer edges of the plates;
and wherein the plate is designed to form a gap, when the plate is stacked with another plate, between the edge of the plate and the edge of the adjacent plate facing the first plate at locations where the gap should remain open, being larger than a gap allowing an applied adhesive to fill or encircle the gap such that the gap remains open; or
(b) at peripheral locations intended to be sealed, a gap between the peripheral protrusions and a surface of an adjacent plate facing the peripheral protrusion, being sufficiently narrow to enable the edges of the plates to melt and coalesce upon applying heat; and
wherein the plate is designed to form a gap, when the plate is stacked with another plate, between the edge of the plate and the edge of the adjacent plate facing the first plate at locations where the gap should remain open, being larger than a gap allowing the edges of the plates to melt and coalesce upon applying heat such that the gap remains open.
4. A heat exchanger comprising:
a fins and tubes heat exchanger, comprising a stack of fins, the fins comprising at least one through hole coupled with a penetrating heat exchanging tube;
a plates heat exchanger comprising a stack of plates, at least two sets of flow inlets and two sets of flow outlets, at least a portion of the plates each comprising a void and an embossment, wherein
each one of at least a portion of the fins of the fins and tubes heat exchanger being at least partially attached to or encompassed by a plate of the plates heat exchanger to define a set of a fin and a plate (SFP) such that fluid flowing over either side of the plate comes in direct contact with the fin;

and wherein at least one of: (i) an alternating order of differently embossed plates; and (ii) an alternating orientation of plates in the stack, is adapted to enable a simultaneous counter fluid flow, cross fluid flow or semi counter-cross fluid flow above and below the SFP, wherein the plate further comprising
a fluid inlet zone, a first heat exchanging zone comprising channel protrusions, a second heat exchanging zone, a third heat exchanging zone comprising channel protrusions and a fluid outlet zone, at least one of the fluid inlet zone and the fluid outlet zone comprising uniformizing protrusions configured to reduce the amount of non-uniform fluid mass flow between different channel protrusions in at least one of the first heat exchanging zone and the third heat exchanging zone and through the second heat exchanging zone.
5. The heat exchanger according to any one of claims 1 to 4 wherein
a first portion of the plates each comprising an embossment configured to channel a first fluid flow between adjacent plates from a first inlet zone toward a first heat exchanging zone, then from between adjacent plates toward a second heat exchanging zone, then from between adjacent fins toward a third heat exchanging zone and then to over a first fluid outlet zone;
a second portion of the plates each comprising an embossment configured to simultaneously channel a second fluid flow between adjacent plates from over a second inlet zone toward a third heat exchanging zone, then from between adjacent plates toward a second heat exchanging zone, then from between adjacent fins toward a first heat exchanging zone and then to over a second fluid outlet zone.
6. The heat exchanger according to any one of claims 1 to 4 wherein a fluid flowing from
the fluid inlet zone toward the second heat exchanging zone exchanges heat in the first
heat exchanging zone with a counter fluid flow, cross fluid flow or semi-cross counter
fluid flow fluid flowing simultaneously on the other side of the plate through the plate
surface, then the fluid flow exchanges heat with the exposed fins in the second heat
exchanging zone, then exchanges heat with a counter fluid flow, cross fluid flow or
semi-cross counter fluid flow on the other side of the plate through the plate in the third
heat exchanging zone and exits through the fluid outlet zone.

7. The heat exchanger according to claim 1 wherein at least one of the plate and the fin comprises attaching protrusions disposed in proximity to the void and adapted to press and attach a fin to a peripheral margin of the adjacent plate around a void.
8. The heat exchanger according to any one of claims Error! Reference source not found, to 4 wherein the voids of the plates are cutouts defined by internal edges of the plates and in case the fins are attached to the plate the cutout is characterized by having an area smaller than the area of the fin.
9. The heat exchanger according to any one of claims 1 to 4 wherein a fin edge is adhered to the surface of the plate.
10. The heat exchanger according to claim 2 wherein the at least one through fluid aperture enables a sub-flow from the flow flowing over the fin to flow through the through hole and merge with a sub-flow flow flowing behind the fin to the other direction.
11. The heat exchanger according to claim 2 or 10 wherein the at least one through fluid aperture is bypassed by a protrusion.
12. The heat exchanger according to any one of claims 2, 10 or 11 wherein the at least one fluid aperture is located in an area wherein the differential static pressure between two sides of a fin lacking the apertures and having an air flow flowing from first inlet to first outlet and had a second airflow flowing from second inlet to second outlet, is less than 30% of the pressure drop between the inlet and the outlet.
13. The heat exchanger according to claims 3 wherein the maximal gap at locations intended to be blocked for fluid flow is smaller than the diameter of a drop of the adhesive being formed when dropped on a surface of the plates.
14. The heat exchange according to claims 3 or 13 wherein the minimal gap at locations intended to be open for fluid flow is larger than the diameter of a drop of the adhesive being formed when dropped on a surface made of the same material of surface of the plate.
15. The heat exchanger according to claim 4 wherein the the uniformizing protrusions in at least one of the fluid inlet and outlet zone comprises at least one of a bent line

protrusion, a dot protrusion, unevenly spaced protrusion lines, non-parallel protrusion lines, non-aligned starting points and non-aligned end points.
16. The heat exchanger according to claim 4 or 15 wherein embossment of fluid flow channels in at least one of the first and third heat exchanging zones comprises at least one bent line protrusion in proximity to the inlet or outlet zone respectively.
17. The heat exchanger according to any one of claims 1 to 4 wherein the plates are made
w
of a material having a thermal conductivity coefficient of less than 5 .
fc J m-°C
18. The heat exchanger according to any one of claims 1 to 4 wherein the fins are made of
w a material having a thermal conductivity coefficient higher than 50 —— .
19. The heat exchanger according to any one of claims 2, 3 or 4 wherein the fin is at least partially overlapping the void of the plate, and at least a portion of a peripheral margin of the fin being attached to at least a portion of a peripheral margin around the void of the plate.
20. The heat exchanger according to any one of claims 1, 3 or 4 wherein at least a portion of the fins further comprising at least one through fluid aperture allowing fluid to pass from one side of the fin to the other side.
21. The heat exchanger according to any one of claims 1, 2 or 4 wherein said plates comprising lateral peripheral protrusions designed to form, when the plate is stacked with another plate, one of:
(a) at least one of:
i. a gap between the peripheral protrusions and a surface of an adjacent plate facing the peripheral protrusion, being sufficiently narrow to enable applied adhesive to fill the gap: and
ii. an outer lateral width of the two plates, enabling an applied adhesive to encircle the outer edges of the plates:
at peripheral locations intended to be sealed,
and wherein the plate is designed to form a gap, when the plate is stacked with
another plate, between the edge of the plate and the edge of the adjacent plate facing

the first plate at locations where the gap should remain open, being larger than a
gap allowing an applied adhesive to fill or encircle the gap such that the gap
remains open:
01
(b) a gap between the peripheral protrusions and a surface of an adjacent plate
facing the peripheral protrusion, being sufficiently narrow to enable the edges of
the plates to melt and coalesce upon applying heat; and
at peripheral locations intended to be sealed,
and wherein the plate is designed to form a gap, when the plate is stacked with another plate, between the edge of the plate and the edge of the adjacent plate facing the first plate at locations where the gap should remain open, being larger than a gap allowing the edges of the plates to melt and coalesce upon applying heat such that the gap remains open.
22. The heat exchanger according to any one of claims 1, 2 or 3 wherein the plate further comprising a fluid inlet zone, a first heat exchanging zone, a second heat exchanging zone, a third heat exchanging zone and a fluid outlet zone, at least one of the inlet zone and the outlet zone comprising uniformizing protrusions configured to reduce the amount of non-uniform fluid mass flow between different fluid flow channel protrusionsfof first heat exchanging zone then through the second heat exchanging zone, then through the third heat exchanging zone and then through the fluid outlet zone.
23. A plate of a heat exchanger as defined in any one of claims 1,3 or 4.
24. A fin of a fins and tubes heat exchanger comprising at least one through fluid aperture allowing fluid to pass from one side of the fin to the other side.
25. The fin according to claim 24 wherein the at least one through fluid aperture enables a sub-flow from the flow flowing over the fin to flow through the through hole and merge with a sub-flow flow flowing behind the fin to the other direction.
26. A method for selectively sealing gaps between adjacent plates of a plates heat exchanger comprising the steps:

(a) obtaining a plates heat exchanger comprising at least one face comprising peripheral edges of plates as defined in claims 3, 13 or 14;
(b) applying adhesive or heat, according to the type of plate of the plate obtained, to at least one of the faces of the plates heat exchanger comprising peripheral locations intended to be selectively sealed;
to obtain a selectively sealed plates heat exchanger at least at one face.
27. The method according to claim 24 further including drying the adhesive remaining between the plates when adhesive is applied.
28. The method according to claim 24 or 25 wherein applying the adhesive is performed by at least one of dipping, brushing, injecting, spreading and spraying.
29. The method according to any one of claims 24 to 26 wherein the adhesive is selected from at least one of glue and paint.
30. The method according to any one of claims 24 to 27 wherein the plates heat exchanger is the heat exchanger as defined in claim 3.
31. A method for manufacturing a heat exchanger comprising the steps of:
a. obtaining plates of a heat exchanger as defined in claim 1 and fins
as defined in claim 1;
b. optionally placing an end plate comprising through holes for
penetrating heat exchange fluid tubes and optionally inserting at
least two longitudinal heat exchange fluid tubes or guiding rods
through two of said through holes;
c. laying the obtained fin on top of an assembling surface or on the
end plate when applicable while inserting the guiding tubes or rods
through the through holes when applicable or having through holes
of the fin aligned with through holes of the end plate;
d. laying the obtained plate on the fin having the face of the plate
which should be in contact with the fin facing the fin having the
void of the plate overlapping a portion of the fin comprising at least
one through hole for heat exchange tubes and when applicable

encompassing the tubes or rods erected from the assembling surface;
e. laying another obtained fin over the plate laid in step d having the
face of the fin which is supposed to face the next plate facing away
from the previously laid plate and having through holes of the fin
are aligned with through holes of the previous fin, so that the
through hole is being stringed by the guiding tubes or rods through
the through, when applicable;
f. repeating steps d and e until a stack of plates coupled to fins of a
desired length is obtained;
g. optionally capping the stack with an end plate:
h, inserting remaining longitudinal heat exchange fluid tube(s) through
the through holes of the fins if applicable; and i. optionally blowing the heat exchanging tube(s) to improve heat
transfer between a tube and fin-through hole to obtain a heat exchanger of plates and fins and tubes assembly.
32. The method according to claim 31 wherein the stacking is performed in a reverse order, beginning first with laying a plate followed by a fin.
33. The method according to claim 31 or 30 wherein plates of different embossment are alternately stacked.
34. The method according to claim 29 wherein steps (c) to (e) are replaced by insertion pre-assembled sets of fins attached to plates.
35. The method according to any one of claims 31 to 32 further comprising selectively sealing gaps at peripheral locations intended to be blocked of at least one face of the heat exchanger.
36. The method according to claim 35 wherein the sealing is carried out according to the method as defined in any one of claims 24 to 27.
37. An apparatus enabling a refrigerating process comprising a compressor, a condenser, an expansion device and an evaporator wherein the evaporator is a fins and tubes heat exchanger of the heat exchanger defined in any one of

claims 1 to 4 the condenser is positioned downstream the heat exchanger such that airflow which exits the heat exchanger, flows through the condenser.
38. The apparatus according to claim 37 wherein the heat exchanger comprises gaps allowing fluid leaks such that, the mass flow rate through the condenser is higher than the mass flow rate through the evaporator.
39. The apparatus according to claim 38 wherein the gaps are located at least at one of (i) at least a portion of the connection area between a fin and a plate upstream the fin, and (ii) at least a portion of the contact line between the blockage protrusions and an adjacent plate.
40. An apparatus comprising a compressor, a condenser, an expansion device and an evaporator enabling a refrigerating process wherein the condenser is a fins and tubes heat exchanger of a heat exchanger as defined in any one of claims 1 to 4 the evaporator is positioned downstream the heat exchanger such that airflow which exits the heat exchanger flows through the evaporator.
41. The apparatus according to claim 40 wherein the heat exchanger comprises gaps allowing fluid leaks such that, the mass flow rate through the evaporator is higher than the mass flow rate through the condenser.
42. The apparatus according to claim 41 wherein the gaps are located at least at one of (i) at least a portion of the connection area between a fin and a plates upstream the fin, and (ii) at least a portion of the contact line between the blockage protrusions and an adjacent plate.
43. The apparatus according to any one of claims 35 to 40 wherein the apparatus is selected from an atmospheric water generator, a dryer and a dehumidifier